Repair Instruction: Initialization

Procedures Necessary when Cable is Disconnected/Reconnected to Battery Terminal 

Procedures Necessary when ECU or Other Parts are Replaced 

HINT:

The VIN is in the form of a 17-digit alphanumeric vehicle identification number. The Techstream is required to register the VIN.

1. DESCRIPTION

   HINT:

   This registration section consists of two parts: Read VIN and Write VIN.

   1. Read VIN: Explains the VIN reading process in a flowchart. This process allows the VIN stored in the ECM to be read in order to confirm that the two VINs, provided with the vehicle and stored in the vehicle ECM, are the same.
   2. Write VIN: Explains the VIN writing process in a flowchart. This process allows the VIN to be input into the ECM. If the ECM is changed, or the ECM VIN and vehicle VIN do not match, the VIN can be registered, or overwritten in the ECM by following this procedure.
2. READ VIN
   1. Confirm the vehicle VIN.
   2. Connect the Techstream to the DLC3.
   3. Turn the engine switch on (IG).
   4. Turn the Techstream on.
   5. Enter the following menus: Powertrain / Engine and ECT / Utility / VIN / VIN Read.
3. WRITE VIN
   1. Confirm the vehicle VIN.
   2. Connect the Techstream to the DLC3.
   3. Turn the engine switch on (IG).
   4. Turn the Techstream on.
   5. Enter the following menus: Powertrain / Engine and ECT / Utility / VIN / VIN Write.

1. INITIALIZE DISTANCE CONTROL ECU
   1. Turn the engine switch on (IG).
   2. Turn the cruise control main switch on.
   3. Depress the brake pedal (brake switch on).
   4. With the brake pedal depressed, push the cruise control main switch to +RES 3 times within 3 seconds, and check that the buzzer sounds.
      NOTE: At this time, do not turn the headlight dimmer switch on. Due to the activation of the beam axis automatic adjustment mode, turning the headlight dimmer switch on may result in an incorrect setting. If the headlight dimmer switch is turned on by mistake, perform the beam axis adjustment again.

1. RESET MEMORY
   NOTE:

   • Perform the Reset Memory (AT initialization) when replacing the automatic transmission assembly, valve body assembly or any of the shift solenoid valves.
   • The Reset Memory can only be performed with the Techstream.

   HINT:

   The ECM memorizes the control conditions of the automatic transmission assembly and engine assembly. Therefore, when the automatic transmission assembly, valve body assembly or any of the shift solenoid valves has been replaced, it is necessary to reset the memory so that the ECM can memorize the new information.

   1. Connect the Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Turn the Techstream on.
   4. Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory.
      NOTE: After performing the Reset Memory, be sure to perform the Road Test described earlier.

      HINT:

      The ECM learns through the Road Test.

1. DESCRIPTION
   1. If replacing the suspension control ECU and/or height control sensor, perform the vehicle height offset calibration.
2. VEHICLE HEIGHT OFFSET CALIBRATION
   NOTE:

   • Make sure that the pressure of the tires is normal.
   • Make sure that the vehicle is empty.
   • Make sure that the parking brake is released and that the shift lever is in N.
   • Make sure that the easy access mode switch is off.
   1. PERFORM VEHICLE HEIGHT INSPECTION
      1. Adjust the pressure of the tires.
      2. Stabilize the suspension by releasing the parking brake and bouncing the corners of the vehicle up and down.
      3. Start the engine.
      4. Perform the following operation twice:

         Set the vehicle height to LO with the height control switch, and then return the vehicle height to NORMAL.

      5. Turn the engine switch off.
      6. Connect the Techstream to the DLC3.
      7. Move the shift lever to N and move the vehicle forward and rearward.
      8. Turn the engine switch on (IG) and the Techstream on.

         HINT:

         Make sure the engine is not running.

      9. Check that the vehicle height is NORMAL.

         HINT:

         The N of the multi-information display height control indicator in the combination meter turns on.

      10. Perform the vehicle height inspection.

          Measuring points: 

          A: 

          Ground clearance of front wheel center 

          B: 

          Ground clearance of the front adjusting cam bolt center 

          C: 

          Ground clearance of the rear axle shaft center 

          D: 

          Ground clearance of the rear lower control arm front side center 

          Fig 1: Identifying Ground Clearance Of Front Wheel Center And Rear Axle Shaft Center

          Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

          Standard Vehicle Height 

          VEHICLE HEIGHT SPECIFICATION
          
          

          Front (A minus B)	Rear (C minus D)
          101 mm (3.98 in.)	94 mm (3.70 in.)

      11. Using a jack, set the vehicle to the standard vehicle height and eliminate any difference in height between the left and right sides of the vehicle.
          NOTE: The vehicle height may be outside the calibration range if there is a difference in height between the left and right sides of the vehicle.
      12. Using the Techstream, enter the following menus: Chassis / AHC / Data List. Then read and record the values for "After Height Adjust" and "Height Adjust" for each wheel.

          AHC 

          DATA LIST
          
          

          Tester Display	Measurement Item/Range	Normal Condition	Diagnosis Note
          FR Height Adjust	Display of vehicle height offset recorded value of front right wheel / min.: -3276.8 mm (-129 in.) max.: 3276.7 mm (129 in.)	-	-
          FL Height Adjust	Display of vehicle height offset recorded value of front left wheel / min.:-3276.8 mm (-129 in.) max.: 3276.7 mm (129 in.)	-	-
          RR Height Adjust	Display of vehicle height offset recorded value of rear right wheel / min.:-3276.8 mm (-129 in.) max : 3276.7 mm (129 in.)	-	-
          RL Height Adjust	Display of vehicle height offset recorded value of rear left wheel / min.: -3276.8 mm (-129 in.) max.: 3276.7 mm (129 in.)	-	-
          FR After Height Adjust	Display of after-calibration vehicle height value of front right wheel / min.: -3276.8 mm (-129 in.) max.: 3276.7 mm (129 in)	-	-
          FL After Height Adjust	Display of after-calibration vehicle height value of front left wheel / min.: -3276.8 mm (-129 in.) max.: 3276.7 mm (129 in.)	-	-
          RR After Height Adjust	Display of after-calibration vehicle height value of rear right wheel / min..-3276.8 mm (-129 in.) max.: 3276 7 mm (129 in.)	-	-
          RL After Height Adjust	Display of after-calibration vehicle height value of rear left wheel / min.:-3276 8 mm (-129 in.) max.- 3276.7 mm (129 in.)	-	-

      13. Turn the engine switch off.
   2. PERFORM VEHICLE HEIGHT OFFSET CALIBRATION
      NOTE: The possible vehicle height automatic adjustment value is 20 mm (0.787 in.). If the "Height Adjust value + (Standard value - Measurement value - After Height Adjust value)" is 20 mm (0.787 in.) or more, first perform the vehicle height adjustment for the front side, and for the rear side.
      1. Turn the engine switch off.
      2. Connect the Techstream to the DLC3.
      3. Turn the engine switch on (IG) and the Techstream on.
      4. Enter the following menus: Chassis / AHC / Utility / Height offset.
      5. For each wheel, follow the instructions on the Techstream screen and input the input value to complete the vehicle height offset calibration.

         HINT:

         Input value = Measurement value and standard value

      6. Remove the jack.
      7. Start the engine.
      8. Set the vehicle height to LO and check that LO of the multi-information display height control indicator stops blinking and illuminates.
      9. Set the vehicle height to NORMAL and check that N of the height control indicator stops blinking and illuminates.
      10. Turn the engine switch off.
      11. Perform the vehicle height inspection. Check that the result is within +/-8 mm (+/-0.315 in.) of the standard value.
      12. Perform yaw rate and G sensor zero point calibration.

1. DESCRIPTION OF CODE REGISTRATION

   It is necessary to register the transmitter ID in the tire pressure warning ECU when replacing a tire pressure warning valve and transmitter and/or the tire pressure warning ECU:

   Prepare all transmitter ID data before starting registration.

   1. Before registration
      1. In case of tire pressure warning ECU replacement:
         • Read the registered transmitter IDs that are stored in the old ECU using the Techstream and note them down.
         • If reading the stored transmitter IDs is impossible due to malfunctions of components such as the tire pressure warning antenna and receiver, remove the tires from the wheels and check the IDs located on the tire pressure warning valve and transmitters.
      2. In case of tire pressure warning valve and transmitter replacement:
         • Take a note of the 7 digit number (transmitter ID) written on the tire pressure warning valve and transmitter.
           Fig 2: Identifying Transmitter ID

           Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
           NOTE: The transmitter ID is written on the tire pressure warning valve and transmitter. It will be unable to be read after installing the tire pressure warning valve and transmitter to the tire and wheel. Therefore, take a note of the transmitter ID before installing the tire pressure warning valve and transmitter.
2. REGISTER TRANSMITTER ID (USING TECHSTREAM)
   1. Set the air pressure of all tires to the specified value(s).
   2. Turn the engine switch off.
   3. Connect the Techstream to the DLC3.
   4. Turn the engine switch on (IG) and the Techstream on.
   5. Enter the following menus: Chassis / Tire Pressure Monitor / Utility / ID Registration.
   6. Perform the procedures displayed on the Techstream.

      HINT:

      • The previously registered IDs will be cleared from the memory when the registration is completed.
      • Registration can be performed during initialization. However, the initialization will be canceled when the registration is started.
      • If this step is not completed within 300 seconds, this mode will be canceled.
   7. Confirmation of transmitter ID registration:
      1. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
      2. Read the "ID Tire Inflation Pressure" values.
      3. Confirm that the tire pressure data of all tires (including the spare tire) is displayed on the Techstream screen.
         NOTE:

         • It may take up to about 2 or 3 minutes to update the tire pressure data. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2125/25.
         • If the IDs have not been registered, DTC C2171/71 is stored in the tire pressure warning ECU after 3 minutes or more.
         • If normal pressure values are displayed, the IDs have been registered correctly.
         • If the tire pressure values are not displayed after a few minutes, the IDs may be incorrect or the system may have a malfunction.
         • The tire pressure information reception condition can also be confirmed through the multi-information display tire pressure display screen.
         • After all IDs are registered, DTC C2126/26 is stored in the tire pressure warning ECU and the tire pressure warning light blinks for 1 minute and then comes on. When the tire pressure warning ECU and receiver successfully receives information from all the transmitters whose IDs are stored in the ECU, DTC C2126/26 is cleared and the tire pressure warning light goes off.

1. DESCRIPTION OF INITIALIZATION
   1. Perform initialization in the following cases:
      • Before delivery of a new vehicle.
      • After replacement of the tire pressure warning ECU.*
      • After replacement of a tire pressure warning valve and transmitter.*
      • Specified tire pressure changes depending on the size or type of tire.
      • Changing the standard tire inflation pressure value due to trailer towing.

      HINT:

      *: Perform initialization after the transmitter ID registration is completed.

   2. Before initialization
      1. Set the tire pressure of all tires to the specified value(s).
         NOTE: Make sure the tires are cooled down.
2. INITIALIZATION PROCEDURE
   1. Turn the engine switch on (IG).
   2. Press and hold the tire pressure warning reset switch for 3 seconds or more so that the tire pressure warning light blinks 3 times.
      Fig 3: Identifying Tire Pressure Warning Light Output Pattern

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Turn the engine switch off.
   4. Connect the Techstream to the DLC3.
   5. Turn the engine switch on (IG) and turn the Techstream on.
   6. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
   7. Check that the initialization has been completed.
   8. Confirm that the tire pressure data of all tires is displayed on the Techstream screen.
      NOTE:

      • The initialization is normally completed within 2 to 3 minutes.
      • If the initialization has not been completed successfully, DTC C2177/77 is stored after a vehicle speed of 8 km/h (5 mph) or more continues for 20 minutes or more.
      • While in test mode, the system will not change to initialization mode even if the tire pressure warning reset switch is pushed.
      • The initialization can be terminated by connecting terminals 13 (TC) and 4 (CG) of the DLC3.
        Fig 4: Identifying DLC3 Terminals

        Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Tire Pressure Monitor 

      DATA LIST
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      ID1 Tire Inflation Pressure	ID1 tire inflation pressure/ min : Absolute pressure (abs) / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure (gauge) / -100 kPa(-1.0kgf/cm2 , -14 psi) max.: Absolute pressure (abs) / 637.5 kPa (6 5 kgf/cm2 , 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5 4 kgf/cm2 , 78 psi)	Actual tire inflation pressure	If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1 0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the data has not been received.*
      ID2 Tire Inflation Pressure	ID2 tire inflation pressure/ min. Absolute pressure (abs) / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure (gauge) / -100 kPa (-1.0 kgf/cm2 ,-14 psi) max.: Absolute pressure (abs) / 637.5 kPa (6.5 kgf/cm2 , 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5.4 kgf/cm2 , 78 psi)	Actual tire inflation pressure	If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the data has not been received.*
      ID3 Tire Inflation Pressure	ID3 tire inflation pressure/ min : Absolute pressure (abs) / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure (gauge) / -100 kPa (-1.0 kgf/cm2 ,-14 psi) max.: Absolute pressure (abs) / 637.5 kPa (6.5 kgf/cm2 , 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5.4 kgf/cm2 , 78 psi)	Actual tire inflation pressure	If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1 0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the data has not been received *
      ID4 Tire Inflation Pressure	ID4 tire inflation pressure/ min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure (gauge) / -100 kPa (-1 0 kgf/cm2 , -14 psi) max.: Absolute pressure (abs) / 637.5 kPa (6.5 kgf/cm2 , 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5.4 kgf/cm2 , 78 psi)	Actual tire inflation pressure	If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the data has not been received.*
      ID5 Tire Inflation Pressure	ID5 tire inflation pressure/ min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure (gauge) / -100 kPa (-1.0 kgf/cm2 ,-14 psi) max : Absolute pressure (abs) / 637.5 kPa (6.5 kgf/cm2 , 92.5 psi), Relative pressure (gauge) / 537.5 kPa (5.4 kgf/cm2 , 78 psi)	Actual tire inflation pressure	If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for the absolute pressure (abs) or -100 kPa (-1.0 kgf/cm2 , -14 psi) is displayed for the relative pressure (gauge), the data has not been received.*
      HINT: The initialization is complete when the Data List "ID Tire Inflation Pressure" display shows the correct pressures. *: It may take about 2 or 3 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2125/25.

3. INITIALIZATION PROCEDURE (MULTI-INFORMATION DISPLAY)
   1. Turn the engine switch on (IG).
   2. Press and hold the tire pressure warning reset switch for 3 seconds or more so that the tire pressure warning light blinks 3 times.
      Fig 5: Identifying Tire Pressure Warning Light Output Pattern

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • The initialization can be confirmed through the multi-information display.
        Fig 6: Multi-Information Display Screen Flow

        Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • The order in which the data is received is random.
      • If the signals from all the wheels are received, the initialization is complete.
      • It may take about 2 or 3 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2125/25.
      NOTE:

      • If the initialization has not been completed successfully, DTC C2177/77 is stored after a vehicle speed of 8 km/h (5 mph) or more continues for 20 minutes or more.
      • The initialization can be terminated by connecting terminals 13 (TC) and 4 (CG) of the DLC3.
      • While in test mode, the system will not change to initialization mode even if the tire pressure warning reset switch is pushed.
        Fig 7: Identifying DLC3 Terminals

        Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. DESCRIPTION

   After replacing the relevant VSC components, clear the sensor calibration data and perform calibration.

   REPLACEMENT/ADJUSTMENT PART AND NECESSARY OPERATION
   
   

   Replacement/Adjustment Part	Necessary Operation
   Master cylinder solenoid (Skid control ECU)	Yaw rate and G sensor zero point calibration
   Yaw rate and G sensor	Clearing zero point calibration data Yaw rate and G sensor zero point calibration
   Vehicle height adjustment	Clearing zero point calibration data Yaw rate and G sensor zero point calibration Steering angle sensor initialization

2. CLEAR ZERO POINT CALIBRATION (SST CHECK WIRE)

   After replacing the yaw rate and G sensor or performing a vehicle height adjustment, make sure to clear the zero point calibration data in the skid control ECU and perform zero point calibration.

   1. Turn the engine switch on (IG).
   2. Using SST, connect and disconnect terminals 12 (TS) and 4 (CG) of the DLC3 4 times or more within 8 seconds.

      SST 09843-18040 

      Fig 8: Identifying DLC3 Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Check that "DIAG VSC OK" is displayed on the multi-information display and check that the ABS warning light outputs the normal system code.
   4. Using a check wire, perform zero point calibration of the yaw rate and G sensor.
      Fig 9: Identifying ABS Warning Light Blinking Pattern (Normal System Code)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND G SENSOR (SST CHECK WIRE)

   SST 09843-18040 

   After replacing the master cylinder solenoid and/or yaw rate and G sensor or performing a vehicle height adjustment, make sure to perform yaw rate and G sensor zero point calibration.

   NOTE:

   • While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it. Keep it stationary and do not start the engine.
   • Choose a level surface with an inclination of less than 1°.
   1. Procedures for Test Mode:
      1. Turn the engine switch off.
      2. Move the shift lever to P.
         NOTE: DTC C1210/36 and C1336/98 will be stored if the shift lever is not in P.
      3. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.
      4. Check that the steering wheel is centered.
      5. Turn the engine switch on (IG).
      6. Keep the vehicle stationary on a level surface for 2 seconds or more.
      7. Check that "VSC TEST MODE" is displayed on the multi-information display and check that the ABS warning light is blinking in test mode.
         Fig 10: Identifying DLC3 Terminals

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
         NOTE: The ABS warning light stays on when obtaining the zero point.

         HINT:

         • If the ABS warning light does not blink, perform the zero point calibration again.
         • The zero point calibration is performed only once after the system enters test mode.
         • Calibration cannot be performed again until the stored data is cleared once.
4. CLEAR ZERO POINT CALIBRATION (TECHSTREAM)

   After replacing the yaw rate and G sensor or performing a vehicle height adjustment, make sure to clear the zero point calibration data in the skid control ECU and perform zero point calibration.

   Fig 11: Identifying ABS Warning Light Blinking Pattern (Test Mode)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Connect the Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Turn the Techstream on.
   4. Enter the following menus: Chassis / ABS/VSC/ TRAC / Utility / Reset Memory.
   5. Using the Techstream, perform zero point calibration of the yaw rate and G sensor.
5. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND G SENSOR (TECHSTREAM)

   After replacing the master cylinder solenoid and/or yaw rate and G sensor or performing a vehicle height adjustment, make sure to perform yaw rate and G sensor zero point calibration.

   NOTE:

   • While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it. Keep it stationary and do not start the engine.
   • Choose a level surface with an inclination of less than 1°.
   1. Procedures for Test Mode:
      1. Turn the engine switch off.
      2. Move the shift lever to P.
         NOTE: DTC C1210/36 and C1336/98 will be stored if the shift lever is not in P.
      3. Check that the steering wheel is centered.
      4. Connect the Techstream to the DLC3.
      5. Turn the engine switch on (IG).
      6. Turn the Techstream on.
      7. Enter the following menus: Chassis / ABS/ VSC/TRAC / Utility / Test Mode.
      8. Keep the vehicle stationary on a level surface for 2 seconds or more.
      9. Check that "VSC TEST MODE" is displayed on the multi-information display and check that the ABS warning light is blinking in test mode.
         NOTE: The ABS warning light stays on when obtaining the zero point.
         Fig 12: Identifying ABS Warning Light Blinking Pattern (Test Mode)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         HINT:

         • If the ABS warning light does not blink, perform the zero point calibration again.
         • The zero point calibration is performed only once after the system enters test mode.
         • Calibration cannot be performed again until the stored data is cleared once.

1. STEERING ANGLE SENSOR INITIALIZATION (to obtain a tire angle (during straight-ahead driving) signal)
   1. Turn the engine switch on (IG), and check that the master warning light illuminates for a few seconds.
      Fig 13: Identifying Master Warning Light

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: If the warning light remains on, repair the applicable system.
   2. Drive the vehicle on a straight road at 35 km/h (22 mph) or more for 5 seconds or more.

      HINT:

      • At this point, the steering wheel will still remain off-center by 5 to 10°.
      • In this step, the neutral position of the steering wheel is restored from the steering control ECU memory.
   3. Confirm that steering angle sensor initialization is completed (using the Techstream).
   4. Confirm that steering angle sensor initialization is completed (not using the Techstream).
      1. Stop the vehicle (engine running).
      2. Slowly turn the steering wheel from lock to lock.
      3. If it turns approximately 2.7 turns, steering angle sensor initialization is completed. If it turns approximately 3.2 turns, steering angle sensor initialization is not completed.
         NOTE: If the steering wheel turns approximately 3.2 turns, drive the vehicle on a straight road at 35 km/h (22 mph) or more for 5 seconds or more. Then confirm the initialization again.

1. VGRS SYSTEM CALIBRATION PROCEDURE (WHEN USING SST CHECK WIRE)
   1. FACE TIRES STRAIGHT AHEAD (Procedure A)
      NOTE: Drive the vehicle to confirm that the steering wheel is centered.
   2. CHECK DTC (Procedure B)
      1. Check for DTCs.

         Result 

         RESULT REFERENCE
         
         

         Result	Proceed to
         DTC C1591/51 is not output	Procedure C
         DTC C1591/51 is output	Procedure D

   3. PERFORM ACTUATOR ANGLE INITIALIZATION (Procedure C)

      SST 09843-18040 

      NOTE: If the procedures from *1 to *2 are not completed within 1 minute, or if errors are made during these procedures, perform the initialization again from the beginning.
      1. Start the engine.
      2. Center the steering wheel.
      3. Using SST, connect terminals 12 (TS) and 4 (CG), and 13 (TC) and 4 (CG) of the DLC3.*1
      4. Disconnect SST from terminal 12 (TS) of the DLC3, and turn the steering wheel to the left 180° or more.
         Fig 14: Identifying DLC3 Terminals

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Connect SST to terminal 12 (TS) of the DLC3.
      6. Disconnect SST from terminal 13 (TC) of the DLC3, and turn the steering wheel to the right 180° or more.
      7. Connect SST to terminal 13 (TC) of the DLC3.*2

         HINT:

         If the master warning light comes on, DTC C1591/51 is stored.

      8. Disconnect SST from the DLC3.
      9. Turn the engine switch off.
   4. FACE TIRES STRAIGHT AHEAD (Procedure D)
      1. Confirm that the steering wheel is centered when facing the tires straight ahead.
         NOTE: Drive the vehicle to confirm that the steering wheel is centered.

         Result 

         RESULT REFERENCE
         
         

         Result	Proceed to
         Steering wheel is off-center	Procedure E
         Steering wheel is centered	Procedure H

   5. UNLOCK STEERING ACTUATOR (Procedure E)
      NOTE: Make sure the engine is not running.
      1. Turn the engine switch off.
      2. Disconnect the cable from the negative (-) battery terminal.
         NOTE: w/ Navigation system
         After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
      3. Disconnect the E85 connector from the steering actuator.
         Fig 15: Identifying Steering Actuator Connector Terminals

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Connect a jumper wire from terminal 7 (LV+) of the steering actuator to the positive (+) 12 V battery terminal and another jumper wire from terminal 16 (LG+) of the steering actuator to the negative (-) 12 V battery terminal.
         NOTE: Do not apply voltage for more than 3 minutes.
   6. STEERING CENTER ADJUSTMENT (Procedure F)
      1. Center the steering wheel.
         NOTE: If the centering of the spiral cable was not confirmed when the steering wheel was installed, confirm the centering of the spiral cable.
   7. LOCK STEERING ACTUATOR (Procedure G)
      1. Disconnect the positive (+) and negative (-) 12 V battery jumper wires from the steering actuator.
      2. Connect the E85 connector to the steering actuator.
      3. Connect the cable to the negative (-) battery terminal.
      4. Turn the steering wheel approximately 3° to the left and right. Confirm that the reaction force can be felt.
         NOTE:

         • If the above procedures are not followed correctly, a DTC will be stored. If a DTC is stored, perform the above procedures again and then check for DTCs.
         • Perform these procedures with the engine switch off.
   8. ADJUST ACTUATOR ANGLE (Procedure H)

      SST 09843-18040 

      HINT:

      Activating and ending test mode will complete actuator angle adjustment.

      1. Make sure the engine switch is off.
         NOTE: Do not touch the steering wheel during these procedures.
      2. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.
      3. Turn the engine switch on (IG).
      4. Confirm that "VGRS Test Mode" is displayed on the multi-information display when test mode is activated.

         HINT:

         Wait approximately 5 seconds.

         Fig 16: Identifying DLC3 Terminals

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Turn the engine switch off.
      6. Disconnect SST from terminals 12 (TS) and 4 (CG) of the DLC3.
      7. Turn the engine switch on (IG) again.
   9. CHECK MASTER WARNING LIGHT (Procedure I)
      1. Confirm that the master warning light is off.
      2. Turn the engine switch off, then on (IG).
      3. Confirm that the master warning light is operating normally.
   10. CHECK STEERING WHEEL OPERATION (Procedure J)
       1. Start the engine.
       2. Perform the steering angle sensor initialization.
       3. Turn the steering wheel from lock to lock and check that it rotates approximately 2.7 turns.
       4. Drive the vehicle and confirm that the steering wheel is centered.
2. VGRS SYSTEM CALIBRATION PROCEDURE (WHEN USING TECHSTREAM)
   1. FACE TIRES STRAIGHT AHEAD
      NOTE: Drive the vehicle to confirm that the steering wheel is centered.
   2. PERFORM VGRS SYSTEM CALIBRATION (Procedure A)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: Chassis / VGRS / Utility / Steering Angle Adjust.
      5. Perform the following procedures displayed on the Techstream.

         HINT:

         Refer to the Techstream operator's manual for further details.

   3. CHECK MASTER WARNING LIGHT (Procedure B)
      1. Confirm that the master warning light is off.
      2. Turn the engine switch off.
      3. Disconnect the Techstream from the DLC3.
      4. Turn the engine switch on (IG).
      5. Confirm that the master warning light is operating normally.
   4. CHECK STEERING WHEEL OPERATION (Procedure C)
      1. Start the engine.
      2. Perform the steering angle sensor initialization.
      3. Turn the steering wheel from lock to lock and check that it rotates approximately 2.7 turns.
      4. Drive the vehicle and confirm that the steering wheel is centered.

1. REGISTER TRANSMITTER CODE

   HINT:

   • The vehicle garage door opener records transmitter codes for systems such as garage doors, gates, entry gates, door locks, home lighting systems, security systems or other transmitter code based systems.
   • The garage door opener is built into the map light assembly. If replacing the map light assembly transmitter, codes for any systems previously registered in the garage door opener must be reregistered.
   1. Register systems in the garage door opener registration mode.
      CAUTION: Do not perform transmitter code registration for a system if people or objects are near the system. When registering transmitter codes for a system, injury or damage can occur because the system may open, close, unlock or otherwise operate.
      NOTE:

      • Before transmitter code registration, confirm that all the electrical systems (headlight, blower motor, rear defogger, etc.) are turned off and that no key is in the vehicle.
      • The garage door opener cannot be used with systems that: 1) were manufactured before April 1,1982, or 2) do not meet Federal Standards (for example, garage doors without a jam protection function).

      HINT:

      • 3 transmitter codes can be registered with the garage door opener, one transmitter code for each of the 3 garage door opener switches.
      • Disconnecting the battery will not clear the transmitter codes registered with the garage door opener.
      1. Select a garage door opener switch for transmitter code registration.
      2. Press and hold the selected switch. The garage door opener will enter registration mode after a brief pause.

         HINT:

         After entering registration mode, the LED flashes at a frequency of 1 Hz.

         Fig 17: Identifying LED Flashes

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. After the garage door opener has entered registration mode, continue holding the selected garage door opener switch and bring the original transmitter of the system to be registered within 1 inch of the garage door opener switches. Then, without releasing the selected garage door opener switch, press and hold the original transmitter switch.
         Fig 18: Pressing Original Transmitter Switch

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. If the transmitter code registration was successful, the LED of the garage door opener flashes at a frequency of 5.6 Hz, and the registration completes. If no malfunction occurs, release both the garage door opener switch and the original transmitter switch.
         Fig 19: Timing Chart Of Registration Mode

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Overwrite previously registered systems in the garage door opener registration mode.
      1. Select a garage door opener switch that will be overwritten with a new transmitter code.
      2. Press and hold the selected switch. After approximately 20 seconds, the garage door opener will enter registration mode.

         HINT:

         Before entering registration mode, the LED is on. After entering registration mode, the LED flashes at a frequency of 1 Hz.

         Fig 20: Identifying LED Flashes

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. After the garage door opener has entered registration mode, continue holding the selected garage door opener switch and bring the original transmitter of the system to be registered within 1 inch of the garage door opener switches. Then, without releasing the selected garage door opener switch, press and hold the original transmitter switch.
         Fig 21: Pressing Original Transmitter Switch

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. If the transmitter code registration was successful, the LED of the garage door opener flashes at a frequency of 5.6 Hz, and the overwriting completes. If no malfunction occurs, release both the garage door opener switch and the original transmitter switch.

         HINT:

         • If transmitter code registration fails: 1) the original transmitter battery may be low or need to be replaced, or 2) the system you are trying to register may not be compatible with the garage door opener.
         • The signals of some transmitters stop after 1 to 2 seconds. For these types of transmitters: 1) press and hold one of the garage door opener switches, and 2) press and release (cycle) the transmitter switch every 2 seconds. Check if the transmitter code was successfully registered.
         • After entering the garage door opener registration mode, transmitter code registration must be completed within 55 seconds. If 55 seconds elapse, the garage door opener will enter low power mode (refer to the  4"low power mode" below).
           Fig 22: Timing Chart Of Overwrite Registration Mode

           Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Clear transmitter codes in the garage door opener clear mode.

      HINT:

      All 3 registered transmitter codes will be cleared. No option exists for only erasing one transmitter code.

      1. Press and hold the left and right switches at both ends of the garage door opener for 10 seconds. The LED will flash at a frequency of 5.6 Hz, and clearing is completed. Releasing the switches will end clear mode.
         Fig 23: Identifying LED Flashes

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         HINT:

         • If the switches are released within 10 seconds after the transmitter codes have been cleared, the garage door opener will enter registration mode.
         • If the switches are held for 10 seconds or more after the transmitter codes have been cleared, default codes will be set to the switches of the garage door opener. Using these default codes, operation of the garage door opener can be checked using a tester.
           Fig 24: Timing Chart Of Clear Mode

           Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   4. Low power mode:
      1. If the garage door opener switch is held for 75 seconds or more, the garage door opener will enter low power mode to economize on power consumption. When the garage door opener has entered low power mode, the LED turns off.

1. DESCRIPTION
   NOTE: If replacement of the ECU is necessary, replace the mayday battery (backup battery) together with the ECU.

   HINT:

   • Turn the engine switch off and disconnect the vehicle battery before replacing the telephone ECU assembly (together with mayday battery) or when just replacing the mayday battery.
   • Historic DTCs may be stored if the vehicle battery is not disconnected during ECU installation/replacement.
   • The telephone ECU assembly estimates the remaining power of the mayday battery based on the mayday battery usage time.
   REPLACED PART AND REGISTRATION PROCEDURE REFERENCE
   
   

   Replaced part	Registration procedure
   Telephone ECU assembly and mayday battery	Telephone ECU assembly initialization Telephone ECU assembly registration/enrollment
   Mayday battery only (When DTC 6-1 is stored and after installing the new mayday battery)	Mayday battery registration Mayday battery confirmation

   1. LEXUS Link Operation Modes
      1. Factory Mode

         This is the default mode from the factory. In this mode, a Japanese prompt will play when the engine switch is turned on (IG). After any button is pressed, a voice prompt will play "System not initialized, a call cannot be placed."

      2. Demo Mode (Dealer Mode)

         A button sequence will initialize the telephone ECU assembly from Factory Mode into Demo Mode. In Demo Mode, pressing the SERVICES button will play the voice prompt "Hello and welcome to LEXUS Link. For LEXUS Link services, contact a LEXUS Link advisor by pressing the SERVICES button again. For additional information, visit us online at Lexus.com in the owner section or talk to your LEXUS dealer." Pressing the SERVICES button again during this voice prompt will place an enrollment call to the LEXUS Link call center.

         HINT:

         • See " bTelephone ECU assembly Initialization" for the button sequence to switch the ECU from Factory Mode into Demo Mode.
         • If the ECU will not switch from Factory Mode to Demo Mode, and there are no prompts played when pushing any buttons, the ECU may have been inadvertently placed into an Engineering Mode. In this case, perform this button sequence to switch the ECU back into Factory Mode. While pressing and holding the VOL- button, press the SERVICES button 5 times within 15 seconds, then release both buttons. The ECU will perform a Factory Mode Start Sequence as described under "Telephone ECU assembly Initialization".
      3. Active Mode

         The LEXUS Link call center will configure this mode automatically after customer enrollment.

      4. De-active Mode

         The LEXUS Link call center will configure this mode automatically after enrollment expires. The SERVICES button will operate the same as in Demo Mode. Therefore, the customer can push it twice to contact the LEXUS Link call center for re-enrollment.

2. TELEPHONE ECU ASSEMBLY INITIALIZATION

   HINT:

   This procedure is for switching a new telephone ECU assembly from the Factory Mode into Demo Mode.

   1. Turn the engine switch from off to on (IG) (engine does not have to be running).
   2. The telephone ECU assembly will perform the Factory Mode Start Sequence for approximately 30 seconds.

      HINT:

      • In Factory Mode, for each engine switch cycle off to on (IG), or after checking or clearing DTCs, the ECU will perform a start sequence that includes a Japanese prompt and flashing LEDs (approximately 30 seconds). Then the LEDs will turn off. Do not push any buttons during this start sequence.
      • If there is a DTC stored during this Factory Mode Start Sequence, after the start sequence, the red LED will remain on and a Japanese prompt will repeat 5 times. Do not press any buttons during these prompts.
   3. BUTTON SEQUENCE:

      While pressing and holding the VOL+ button, press and release the Phone button 5 times within 15 seconds, then release the VOL+ button. When switched to Demo Mode, each LED will flash one time then turn off (approximately 5 seconds).

   4. CONFIRMATION:

      Confirm Demo Mode by pressing the SERVICES button and listening for the demo prompt "Hello and welcome to LEXUS Link..." (the engine switch must be on (IG) for the SERVICES button to function). Additionally, after each engine switch cycle off to on (IG), the LEDs will each flash one time each. This start sequence takes approximately 5 seconds. If Demo Mode is not confirmed, repeat the initialization procedure.

      HINT:

      • Before troubleshooting a DTC, attempt to initialize the ECU into Demo Mode with the button sequence. Then access DTCs and troubleshoot the ECU in Demo Mode. If necessary, DTCs can still be accessed in Factory Mode. However, the 30 second Factory Mode Start Sequence (and the Japanese prompt, which will repeat 5 times if a DTC is stored) will occur after each engine switch cycle off to on (IG), and after each DTC check or clear. Do not press any buttons during this start sequence.
      • A red LED continuously on in any mode indicates that there is a current DTC stored. Refer to the DIAGNOSTIC TROUBLE CODE CHART  .
      • Do not push any buttons during any start sequences (LED flashing or voice prompts).
3. TELEPHONE ECU ASSEMBLY REGISTRATION/ENROLLMENT
   1. Turn the engine switch on (IG) and wait for the 5 second LED flash start sequence. Press the SERVICES button when the telephone ECU assembly is set normally and confirm that the following demo message is provided. "Hello and welcome to LEXUS Link...". If the message is not provided, perform the "TELEPHONE ECU ASSEMBLY INITIALIZATION BUTTON SEQUENCE" again.
   2. As the message states, press the SERVICES button again during the prompt to connect to the LEXUS Link call center.

      HINT:

      Usually this call will connect within 15 to 30 seconds. However, it may take several minutes depending on cellular service in the area. A progression tone (i.e., beep) will be heard every 5 seconds to indicate that the connection attempt is in progress.

   3. A LEXUS Link call center advisor will answer and instruct the technician on how to register/enroll the new telephone ECU assembly. The ESN, STID and VIN may be required at this time.

      HINT:

      • If the LEXUS Link call center cannot be reached after several attempts using the SERVICES button, or a cell tower message is heard, such as "Welcome to Verizon Wireless, your phone is not active at this time...", call the LEXUS Link call center by pushing the EMERGENCY button.
      • The LED flash start sequence (approximately 5 seconds) after the engine switch is cycled or after checking/clearing DTCs remains present after enrollment. A green LED continuously on after this sequence indicates that the LEXUS Link System is activity enrolled.
4. MAYDAY BATTERY REGISTRATION

   HINT:

   • This procedure is required to register a new mayday battery and clear DTC 6-1. This procedure matches the new mayday battery with the new or used ECU.
   • A new telephone ECU assembly always requires a new mayday battery (used mayday batteries should not be reused in a new ECU).
   • If the new replacement ECU is packaged and already connected to the new mayday battery when it arrives from the factory, and current DTC 6-1 is not stored, do not perform the new mayday battery registration (the battery is already registered to the ECU that it is connected to).
   1. Turn the engine switch from off to on (IG) and wait for the start up sequence of LED flashing to complete. Do not press any buttons during this start up sequence.

      (Note that Demo Mode and active enrolled ECUs have an approximately 5 second LED flashing start sequence. Factory Mode has approximately 30 seconds of LED flashing with a Japanese voice prompt. Also note if a current DTC is stored in Factory Mode after this 30 second start sequence, the red LED remains on and another Japanese prompt repeats 5 times.)

   2. BUTTON SEQUENCE:

      Press and hold the PTT button while completing the following sequence of button presses. VOL+, VOL+, VOL-, VOL-, VOL+, VOL+, VOL-, VOL-, VOL+, VOL+, VOL-, VOL-Release all buttons. This button press sequence should be performed within 15 seconds.

   3. The system will then perform the same start sequence as described above. After this start sequence completes, turn the engine switch off then on (IG). Wait for the start sequence to complete. The new mayday battery is now registered to the telephone ECU assembly and DTC 6-1 should be cleared.

      HINT:

      The mayday battery registration can be done in any mode (Factory Mode, Demo Mode or active enrolled).

5. MAYDAY BATTERY CONFIRMATION
   1. After mayday battery replacement and completion of the "MAYDAY BATTERY REGISTRATION BUTTON SEQUENCE", turn the engine switch off and on (IG), and wait for the start sequence described in the "MAYDAY BATTERY REGISTRATION". Then check that current DTC 6-1 is cleared.
      NOTE: If the "MAYDAY BATTERY REGISTRATION BUTTON SEQUENCE" has not been completed correctly, DTC 6-1 remains stored even if the mayday battery is replaced with a new one. In this case, check to be sure the old battery is removed and the new battery is installed. Then perform the "MAYDAY BATTERY REGISTRATION BUTTON SEQUENCE" again.

1. DESCRIPTION OF CODE REGISTRATION

   HINT:

   • The engine immobilizer function ID code is the same as the recognition code for the smart access system with push-button start and wireless transmitter. Registering an ID code enables the smart access system with pushbutton start, wireless door lock control function and engine immobilizer function to be operated.
   • Code registration is needed when the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU), steering lock ECU, ECM or key is replaced with a new one.
   • This vehicle does not have a key slot. Therefore, touch the logo of the key to the engine switch to register the key, as shown in the illustration.
     Fig 25: Identifying Engine Switch And Card Key

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. PART REPLACEMENT AND KEY REGISTRATION PROCEDURES
   1. If a malfunctioning ECU is discovered through troubleshooting of the smart access system with push-button start, use the ECU replacement and key registration procedures in the table below.

      HINT:

      • The following procedures require the use of the Techstream:
        • New key ID registration
        • Additional key ID registration
        • Key ID erasure
        • ECU code registration
      • When simply adding a new key (without losing or replacing any existing keys), refer to " 3Additional key ID registration" under Key Registration Procedures.
      • If all of the registered keys are not available, replacement of the ID code box (immobilizer code ECU), certification ECU (smart key ECU assembly) and steering lock ECU is also required.
      • A maximum of 7 keys can be registered.
      KEY ID REGISTRATION PROCEDURE CHART
      
      

      Part to be Replaced	Condition		Procedure
      Certification ECU (smart key ECU assembly)	Customer has brought all keys		Replace certification ECU (smart key ECU assembly) Reregister all keys (new key ID registration)
      	Some keys are lost	Key ID codes can be registered and cleared	Clear key codes (key ID erasure) Perform additional key registration procedure (additional key ID registration) Replace certification ECU (smart key ECU assembly) Reregister all keys (new key ID registration) HINT: If some keys are not registered during above steps, they will be disabled because they cannot be registered later.
      		Key ID codes cannot be either registered or cleared	Replace certification ECU (smart key ECU assembly) Replace ID code box (immobilizer code ECU) Reregister all keys (new key ID registration) HINT: If key codes cannot be cleared or additional keys cannot be registered due to malfunction in certification ECU (smart key ECU assembly), replace ID code box (immobilizer code ECU) and certification ECU (smart key ECU assembly). If some keys are not registered during above steps, they will be disabled because they cannot be registered later.
      	All keys are lost		Replace certification ECU (smart key ECU assembly) Replace ID code box (immobilizer code ECU) Replace steering lock ECU Register all keys (new key ID registration) ECU communication ID registration
      ID code box (immobilizer code ECU)	At least 1 key is available		Replace ID code box (immobilizer code ECU) ECU communication ID registration
      	All keys are lost		Replace ID code box (immobilizer code ECU) Replace certification ECU (smart key ECU assembly) Replace steering lock ECU Register all keys (new key ID registration) ECU communication ID registration
      Steering lock ECU	Customer has brought at least 1 key		Replace steering lock ECU Register recognition codes in ECUs (ECU code registration)
      	All keys are lost		Replace certification ECU (smart key ECU assembly) Replace ID code box (immobilizer code ECU) Replace steering lock ECU Register all keys (new key ID registration) ECU communication ID registration
      Main body ECU	No condition required		Replace main body ECU
      ECM	No condition required		Replace ECM ECU communication ID registration HINT: Only perform procedure above when replacing with used ECM.
      Key	Customer has brought at least 1 key HINT: After key ID erasure, any remaining keys that are not registered at this time cannot be used. Therefore, after key ID erasure, register all remaining keys.		Using remaining key, clear lost key (key ID erasure) Register additional keys as necessary (additional key ID registration)
      	All keys are lost		Replace certification ECU (smart key ECU assembly) Replace ID code box (immobilizer code ECU) Replace steering lock ECU Register all keys (new key ID registration) ECU communication ID registration

3. KEY REGISTRATION PROCEDURES
   1. New key ID registration (when replacing certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU), or certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU) and steering lock ECU):
      KEY ID REGISTRATION PROCEDURE CHART
      
      

      Process	Procedure
      1. Start of registration	Connect the Techstream to DLC3 Turn the engine switch on (IG) HINT: The engine switch cannot be turned on (IG) more than 10 times. To continue the key registration procedure with the engine switch off, after connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at intervals of 1.5 seconds. Turn the Techstream on Enter the following menus: Smart Access / Utility / Key Code Registration
      2. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen HINT: Mode is automatically selected by the Techstream (new registration mode or add mode).
      3. Verification of unregistered key*	Touch logo of unregistered key to engine switch Confirm that wireless door lock buzzer sounds once (short beep) Place unregistered key on front passenger side seat Confirm that wireless door lock buzzer sounds once (short beep)
      4. Registration of ID code	Perform operation according to prompts on the Techstream screen
      5 End of registration	Finish new key ID code registration
      HINT: *: Repeat this process for each key which is to be registered to the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration from process 1 again. Make sure that only 1 key is in the cabin during registration. If 2 or more keys are in the cabin simultaneously, the electric waves will interfere with each other, preventing normal registration.

   2. New key ID registration (when replacing certification ECU (smart key ECU assembly)):
      KEY ID REGISTRATION PROCEDURE CHART
      
      

      Process	Procedure
      1. Start of registration	Connect the Techstream to DLC3 Turn the engine switch on (IG) HINT: The engine switch cannot be turned on (IG) more than 10 times. To continue the key registration procedure with the engine switch off, after connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at intervals of 1.5 seconds. Turn the Techstream on Enter the following menus. Smart Access / Utility / Key Code Registration
      2. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen HINT: Mode is automatically selected by the Techstream (new registration mode or add mode).
      3. Confirmation of all registered keys*1	Touch logo of registered key to engine switch Confirm that wireless door lock buzzer sounds once (short beep)
      4. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
      5. Verification of unregistered key*2	Touch logo of unregistered key to engine switch Confirm that wireless door lock buzzer sounds once (short beep) Place unregistered key on front passenger side seat Confirm that wireless door lock buzzer sounds once (short beep)
      6. Registration of ID code	Perform operation according to prompts on the Techstream screen
      7. End of registration	Finish new key ID code registration
      HINT: *1: Repeat this process for each key registered to the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration from process 1 again. When performing the key confirmation procedure for a key, the security indicator light comes on and remains on until all the keys are confirmed. *2: Repeat this process for each key which is to be registered to the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration from process 1 again. Make sure that only 1 key is in the cabin during registration. If 2 or more keys are in the cabin simultaneously, the electric waves will interfere with each other, preventing normal registration.

   3. Additional key ID registration:
      ADDITIONAL KEY ID REGISTRATION PROCEDURE CHART
      
      

      Process	Procedure
      1. Start of registration	Connect the Techstream to DLC3 Turn the engine switch on (IG) HINT: The engine switch cannot be turned on (IG) more than 10 times. To continue the key registration procedure with the engine switch off, after connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at intervals of 1.5 seconds. Turn the Techstream on Enter the following menus: Smart Access / Utility / Key Code Registration
      2. Confirmation of registered key*1	Perform operation according to prompts on the Techstream screen Touch logo of registered key to engine switch Confirm that wireless door lock buzzer sounds once (short beep)
      3. Confirmation of ECU code	Perform operation according to prompts on the Techstream screen
      4. Verification of unregistered key*2	Touch logo of unregistered key to engine switch Confirm that wireless door lock buzzer sounds once (short beep) Place unregistered key on front passenger side seat Confirm that wireless door lock buzzer sounds once (short beep)
      5. Registration of ID code	Perform operation according to prompts on the Techstream screen
      6. End of registration	Finish key ID code registration
      HINT: *1: Perform this process for one of the keys registered to the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the registration from process 1 again. *2: Repeat this process for each key which is to be registered to the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration from process 1 again. Make sure that only 1 key is in the cabin during registration. If 2 or more keys are in the cabin simultaneously, the electric waves will interfere with each other, preventing normal registration.

   4. Key ID erasure (clear all registered key codes except one):
      KEY ID ERASURE PROCEDURE CHART
      
      

      Process	Procedure
      1. Start of erasure	Connect the Techstream to DLC3 Turn the engine switch on (IG) HINT: The engine switch cannot be turned on (IG) more than 10 times. To continue the key ID erasure procedure with the engine switch off, after connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at intervals of 1.5 seconds. Turn the Techstream on Enter the following menus: Smart Access / Utility / Key Code Erasure
      2. Confirmation of registered key*	Perform operation according to prompts on the Techstream screen Touch logo of registered key to engine switch Confirm that wireless door lock buzzer sounds once (short beep)
      3. Erasure of ID code	Perform operation according to prompts on the Techstream screen
      4. End of erasure	Finish key ID code erasure
      HINT: *: Perform this process for one of the keys registered to the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the erasure from process 1 again.

   5. All keys ID erasure:
      KEY ID ERASURE PROCEDURE CHART
      
      

      Process	Procedure
      1. Start of erasure	Connect the Techstream to DLC3 Turn the engine switch on (IG) HINT: The engine switch cannot be turned on (IG) more than 10 times. To continue all keys ID erasure procedure with the engine switch off, after connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at intervals of 1.5 seconds. Turn the Techstream on Enter the following menus. Smart Access / Utility / Key Code Reset Read "Seed Number" sent from TIS according to the Techstream screen
      2. Confirmation of registered key*	Touch logo of registered key to engine switch
      3. Erasure of ID code	Perform operation according to prompts on the Techstream screen
      4. End of erasure	Finish key ID code erasure
      HINT: *: Perform this process for one of the keys registered to the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the erasure from process 1 again.

   6. ECU code registration:
      ECU CODE REGISTRATION PROCEDURE CHART
      
      

      Process	Procedure
      1. Start of registration	Connect the Techstream to DLC3 Turn the engine switch on (IG) HINT: The engine switch cannot be turned on (IG) more than 10 times. To continue the ECU code registration procedure with the engine switch off, after connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at intervals of 1.5 seconds. Turn the Techstream on Enter the following menus: Smart Access / Utility / ECU Communication ID Registration / ID code box (immobilizer code ECU) and Steering Lock Read "Seed Number" sent from TIS according to the Techstream screen
      2. Confirmation of registered key*	Touch logo of registered key to engine switch Confirm that wireless door lock buzzer sounds once (short beep)
      3. Erasure of ECU code	Perform operation according to prompts on the Techstream screen
      4. End of registration	Finish ECU code registration
      HINT: *: Perform this process for one of the keys registered to the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the registration from process 1 again.

   7. ECU communication ID registration:

      SST 09843-18040 

      NOTE:

      • The ECU communication ID should be registered when the ID code box (immobilizer code ECU), steering lock ECU or ECM is replaced in order to match the ECU communication ID.
      • The engine cannot be started unless ECU communication ID is registered.
      • After the registration, pressing the engine switch may not start the engine on the first try. If so, press the engine switch again.
      • After the engine is started, clear DTC B2799 (code for ECM immobilizer communication error) using either of the following methods:
        • Use the Techstream.
        • Disconnect the cable from the negative (-) battery terminal for 30 seconds.
          Fig 26: Identifying DLC Connector Terminal CG And TC

          Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
      2. Turn the engine switch on (IG) (do not start the engine) and leave it as is for 30 minutes.
      3. Turn the engine switch off and disconnect terminals 13 (TC) and 4 (CG).
      4. Check that the engine starts and stays on for more than 3 seconds.
   8. ECU communication ID re-registration:
      NOTE: The ECU communication ID should be registered when the ECM is replaced in order to match the ECU communication ID.
      ECU COMMUNICATION ID RE-REGISTRATION PROCEDURE AND SECURITY INDICATOR LIGHT CONDITION
      
      

      Procedure	Time	Security Indicator Light Condition
      1. Start	-	Off
      2. While holding registered key, turn the engine switch on (IG) with brake pedal depressed
      3. Check that engine starts and stays on for more than 3 seconds
      4. End

1. REGISTRATION
   NOTE:

   • If any DTCs related to the occupant classification ECU are output, troubleshoot those DTCs by referring to the Diagnostic Trouble Code Chart.
   • When ECU data saving or loading operations cannot be performed, replace the No. 1 seat cushion (occupant classification ECU and occupant detection sensor).

   HINT:

   • When the No. 1 seat cushion (occupant classification ECU) is replaced, the previous ECU data must be saved in the Techstream and loaded into the new ECU by following the flowchart below.
   • Until the data from the previous ECU are loaded into the new occupant classification ECU, these data are not cleared even when the Techstream is turned off.
   1. Connect the Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Store the occupant classification ECU data in the Techstream by following the prompts on the Techstream screen.

      HINT:

      If the ECU data cannot be stored in the Techstream, replace the No. 1 seat cushion (occupant classification ECU and occupant detection sensor).

   4. Turn the engine switch on (IG).
   5. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
   6. Replace the No. 1 seat cushion (occupant classification ECU).
   7. Connect the cable to the negative (-) battery terminal.
   8. Turn the engine switch on (IG).
   9. Load the data from the previous ECU stored in the Techstream into the newly installed ECU by following the prompts on the Techstream screen.
   10. Turn the engine switch off.
   11. Turn the engine switch on (IG).
   12. Clear the DTCs stored in the memory.

       HINT:

       If DTCs are not cleared at this time, past DTCs will remain.

HINT:

Perform zero point calibration if any of the following conditions is met:

• The No. 1 seat cushion (occupant classification ECU) is replaced.
• The passenger airbag ON/OFF indicator indicates ("OFF") when the front passenger seat is not occupied.
• The vehicle is brought to the workshop for repair due to an accident or a collision.

1. ZERO POINT CALIBRATION
   1. Zero point calibration procedures
      1. Check that all of the following conditions are met:
         • The vehicle is parked on a level surface.
         • No objects are placed on the front passenger seat.
         • The front passenger seat belt buckle switch is off.
      2. Adjust the seat position according to the table below.
         ADJUSTMENT ITEMS AND SEAT POSITION REFERENCE
         
         

         Adjustment Item	Position
         Slide Direction	Rear most position
         Reclining Angle	Upright position
         Front vertical Height	Upper most position
         Lifter Height	Lower most position

      3. Connect the Techstream to the DLC3.
      4. Turn the engine switch on (IG).
      5. Perform zero point calibration by following the prompts on the Techstream screen.

         HINT:

         • Refer to the Techstream operator's manual for further details.
         • If the zero point calibration is performed when the calibration conditions are not satisfied, DTC B1797 is output.
         • If the zero point calibration has failed, DTC B1797 is output.
         • If After Exchange is selected before the previous ECU data are stored in the Techstream, the display screen returns to System Select: Body Electrical / Occupant Detection.

           OK: "Zero Point Calibration is complete" is displayed. 

         ITEMS PROCEDURE CHART
         
         

         Item	Procedure
         DTC	Check for DTCs and perform troubleshooting
         Write error	Replace No. 1 seat cushion (occupant classification ECU and occupant detection sensor)
         Temperature	Check value of Thermistor temperature output in Data List
         Pressure	Check value of Filtered pressure sensor output in Data List
         Crash counter	-

   2. SENSITIVITY CHECK
      1. Sensitivity check procedures
         1. Turn the engine switch off.
         2. Place a weight of 20 kg (44.0 lb) on the front passenger seat.
            Fig 27: Placing Weight On Front Passenger Seat

            Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
            NOTE:

            • Do not allow the weight to come into contact with the seatback when placing it on the seat cushion.
            • Place the weight in the area shown in the illustration.
         3. Turn the engine switch on (IG), and wait for at least 6 seconds.
         4. Check that the passenger airbag ON/OFF indicator indicates ("OFF").

            OK: Passenger airbag ON/OFF indicator indicates ("OFF"). 

         5. Add a weight of 30 kg (66.1 lb) to the front passenger seat (total 50 kg (110.2 lb)).
            NOTE: Do not allow the weight to come into contact with the seatback when placing it on the seat cushion.
         6. Check that the passenger airbag ON/OFF indicator indicates ("ON").

            OK: Passenger airbag ON/OFF indicator indicates ("ON"). 

1. INITIALIZE POWER WINDOW CONTROL SYSTEM (POWER WINDOW REGULATOR MOTOR (ALL DOORS))
   CAUTION: When the power window regulator motor is reinstalled or replaced, the power window control system must be initialized. Functions such as the auto up/down, jam protection and key-off do not operate if the initialization is not performed.

   HINT:

   When the battery is replaced, it is not necessary to initialize the power window regulator motor.

   NOTE:

   • When the power window regulator motor is replaced, DTC B2313 is output. Clear the DTC after the initialization.
   • When performing initialization, do not perform any other procedures.
   • After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the auto up function is used, due to detection of a value different from the operation learned value of the door glass movement speed. In such cases, the auto up function can be resumed by repeating the following operation at least 5 times:
     1. Open the power window by fully pushing down the power window switch.
     2. Close the power window by fully pulling up the power window switch and holding it at the auto up position.
   • If the initialization is not completed properly, the LIN communication system may have a malfunction.
   1. Initialization procedures when replacing the power window regulator motor with a new one:
      1. Connect the battery and turn the engine switch on (IG) (at this time, the LED on the power window switch blinks to indicate that it is ready for initialization).
      2. Fully open the window by fully pushing the power window switch, and hold the switch for 1 second or more after the window is fully opened.
      3. Fully close the power window by fully pulling the power window switch, and hold the switch for 1 second or more after the window is fully closed to reset the glass position. The LED on the power window switch stops blinking and illuminates to indicate that the initialization is complete.
   2. Initialization procedures when removing/installing the power window regulator motor:
      1. Connect the battery and turn the engine switch on (IG).
      2. Fully close the power window by fully pulling the power window switch, and hold the switch for 6 seconds or more after the window is fully closed (if the power window does not move or stops halfway even when the switch is fully pulled, release the switch and fully pull it again).
      3. Fully open the window by pushing down the power window switch, and hold the switch for 1 second or more after the window is fully opened.
      4. Release the power window switch. Then fully push and hold the switch for 4 seconds or more.
      5. Fully close the power window by fully pulling the power window switch, and hold the switch for 1 second or more after the window is fully closed to reset the glass position and complete the initialization.
   3. Initialization procedures when the power window does not fully open:
      1. Connect the battery and turn the engine switch on (IG).
      2. Fully close the power window by fully pulling the power window switch, and hold the switch for 6 seconds or more after the window is fully closed (if the power window does not move or stops halfway even when the switch is fully pulled, release the switch and fully pull it again).
      3. Fully open the window by pushing down the power window switch, and hold the switch for 1 second or more after the window is fully opened.
      4. Release the power window switch. Then fully push and hold the switch for 4 seconds or more.
      5. Fully close the power window by fully pulling the power window switch, and hold the switch for 1 second or more after the window is fully closed to reset the glass position and complete the initialization.

1. INITIALIZE SLIDING ROOF DRIVE GEAR
   NOTE:

   • When the sliding roof glass is replaced or removed and installed, or the drive gear assembly is replaced, the sliding roof drive gear requires initialization (pulse sensor initial position setting), as the glass position cannot be determined. If initialization is not performed, the auto slide open and close/tilt up and down function may not operate, or the sliding roof may move in reverse or become misaligned.
   • During initialization, do not apply a physical shock, such as opening/closing a door or driving the vehicle at 5 km/h (3.10 mph) or more, to the vehicle and do not perform the following electrical operations:
     1. Cranking the engine
     2. Turning the engine switch from on (IG) to off
     3. Operating the power window switches
     4. Operating the window defogger switch
     5. Operating the blower switch
     6. Locking/Unlocking the door
     7. Operating the headlight dimmer switch

   HINT:

   When the cable is disconnected and reconnected to the negative (-) battery terminal or the drive gear connector is disconnected and reconnected, the sliding roof drive gear (pulse sensor initial position setting) initialization is not necessary.

   1. Perform initialization according to the table below.
      CONDITION OF SLIDING ROOF
      
      

      Condition of Sliding Roof	Proceed to
      Auto slide open and close/tilt up and down function does not operate	Procedure A
      Sliding roof moves in reverse direction during tilt down operation	Procedure B
      Sliding roof moves in reverse direction during slide close operation	Procedure C

      1. Procedure A
         1. Turn the engine switch on (IG).
         2. Open the sliding roof to the fully tilt up position.
         3. Press and hold the UP switch to perform the following operations: tilt up → approximately 10 second pause → tilt down → slide open → slide close.
            NOTE: Make sure not to release the switch during the initialization. If the switch is released, perform the initialization again.
         4. Continue to hold the switch for 1 second or more after the sliding roof stops in the fully closed position, and then release it.
         5. The initialization is completed.
      2. Procedure B
         1. Turn the engine switch on (IG).
         2. Press the UP switch until the sliding roof stops.

            HINT:

            If the glass becomes misaligned or does not fully tilt up, perform the following operations:

            1. Operate the CLOSE switch until the sliding roof stops moving.
            2. Operate the UP switch until the sliding roof stops moving, then proceed to the next step.
         3. Release the switch.
         4. Press and hold the UP switch to perform the following operations: tilt up → approximately 10 second pause → tilt down → slide open → slide close.
            NOTE: Make sure not to release the switch during the initialization. If the switch is released, perform the initialization again.
         5. Continue to hold the switch for 1 second or more after the sliding roof stops in the fully closed position, and then release it.
         6. The initialization is completed.
      3. Procedure C
         1. Turn the engine switch on (IG).
         2. Press and hold the CLOSE switch to perform the following operations: slide close → move in reverse direction → 10 second pause → slide close → tilt up → tilt down → slide open → slide close.
            NOTE: Make sure not to release the switch during the initialization. If the switch is released, perform the initialization again.
         3. Continue to hold the switch for 1 second or more after the sliding roof stops in the fully closed position, and then release it.
         4. Check if the auto function is operative.

1. RESET BACK DOOR CLOSE POSITION
   NOTE: Perform initialization of the power back door system (power back door ECU initialization) if one of the following is performed: 1) The cable is disconnected from the negative (-) battery terminal; 2) a wire harness, the power back door unit or back door lock is replaced or removed/installed; or 3) the ECU-B2 fuse is replaced or removed/installed. If initialization is not performed, the power back door system will not operate.
   1. When the back door is open and the cable is disconnected and reconnected to the negative (-) battery terminal, fully close the back door by hand.

      HINT:

      Initialization is not necessary if the cable is disconnected and reconnected to the negative (-) battery terminal while the back door is closed. However, because the power back door ECU recognizes that the back door is locked, the power back door system will not operate if the back door is not unlocked.

2. CHECK POWER BACK DOOR FUNCTION

   HINT:

   • Proceed to Operation Check.
   • If the power back door system does not operate and/or the back door does not open, disconnect the cable from the negative (-) battery terminal. Then wait 10 seconds, reconnect the cable and perform initialization of the power back door system again.