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Repair Instruction: Initialization

Procedures necessary when battery terminal is disconnected / reconnected 

PROCEDURES NECESSARY WHEN BATTERY TERMINAL IS DISCONNECTED / RECONNECTED

Necessary Procedures Procedure Details Effects / Inoperative Functions When Necessary Procedures are not Performed Notes
Steering angle sensor initialization Drive the vehicle on a straight road at 35 km/h (22 mph) or more for 5 seconds or longer. VGRS system -
Alarm state cancel Press the key's UNLOCK switch Until UNLOCK switch is pressed, alarm will continue sounding (57 seconds total) Refer to theft deterrent article (see ON-VEHICLE INSPECTION )
Initialize intuitive parking assist system
  1. Fully turn the steering to the right
  2. Fully turn the steering to the left
 Steering sensing function of intuitive parking assist system Drive the vehicle at more than 20 km/h (12 mph) for more than 5 minutes on a straight road with as little traffic congestion as possible.

Procedures necessary when ECU or other parts are replaced 

PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED

Replacement Part Necessary Procedures Effects / Inoperative Functions When Necessary Procedures are not Performed Notes
Hybrid vehicle control ECU
  1. Perform clutch oil pressure value learning initialization
  2. Initialize radar cruise control system
  • Large shift shock
  • Radar cruise control system
  • Perform initialization with power switch ON (READY), shift lever on P and vehicle stopped
  • During learning operation, "T/M LEARNING" appears on meter's multi-information display
Hybrid vehicle transmission assembly Perform clutch oil pressure value learning initialization Large shift shock
  • Perform initialization with power switch ON (READY), shift lever on P and vehicle stopped
  • During learning operation, "T/M LEARNING" appears on meter's multi-information display
Tire pressure warning ECU and receiver
  1. Register transmitter IDs to "MAIN" setting of switch
  2. Register transmitter IDs to "2nd" setting of switch (if necessary)
  3. Initialize tire pressure warning system
  • Tire pressure warning light illumination
  • Tire pressure monitoring function (even if tire is punctured or pressure decreases, it is not detected)
 -
Tire pressure warning valve and transmitter
  1. Register transmitter IDs to "MAIN" setting of switch
  2. Register transmitter IDs to "2nd" setting of switch (if necessary)
  3. Initialize tire pressure warning system
  • Tire pressure warning light illumination
  • Tire pressure monitoring function of replaced wheel (even if tire is punctured or pressure decreases, it is not detected)
 -
Skid control ECU Initialize linear solenoid valve and perform calibration
  • Brake control warning light illumination
  • Brake warning light illumination
  • ABS warning light illumination
  • VSC warning display of multi-information display
  • Master warning light illumination
 -
  • Brake actuator
  • Brake pedal stroke sensor
  1. Bleed air
  2. Clear stored value of linear solenoid valve and calibration data
  3. Initialize linear solenoid valve and perform calibration
  • Brake control warning light illumination
  • Brake warning light illumination
  • ABS warning light illumination
  • Master warning light illumination
 -
Brake pedal
  1. Inspect and adjust brake pedal height
  2. Clear stored value of linear solenoid valve and calibration data
  3. Initialize linear solenoid valve and perform calibration
 Brake does not operate properly -
Yaw rate and acceleration sensor
  1. Clear zero point calibration data
  2. Perform yaw rate and acceleration sensor zero point calibration
  • Master warning light illumination
  • VSC warning display of multi-information display
  • Brake control warning light illumination
  • Brake warning light illumination
  • ABS warning light illumination
  • VSC control is prohibited or operation is incorrect
  • VGRS system
 -
Steering column (Multiplex tilt and telescopic ECU) (Steering lock actuator [Steering lock ECU])
  1. Code registration (immobilizer)
  2. VGRS initialization
  3. VGRS calibration
  • Wireless door lock control function
  • Smart access system with push-button start
  • Engine start
  • Steering wheel is off-center (even if steering wheel is in neutral position, tires are not straight ahead)
 Leads to VGRS actuator spiral cable open malfunction
  • Power steering ECU
  • Power steering link
 Perform rotation angle sensor initialization and torque sensor zero point calibration
  • EPS control
  • Steering effort is different between turning steering wheel to left and right
  • Steering effort varies
  • Rotation angle sensor or torque sensor malfunction DTC is stored
 -
Steering angle sensor
  1. Store steering angle neutral position and maximum steering angle
  2. Acquire steering sensor zero point
 VGRS system Drive the vehicle at more than 20 km/h (12 mph) for more than 5 minutes on a straight road with as little traffic congestion as possible.
Occupant classification ECU
  • Perform zero point calibration
  • Registration ECU data
  • Occupant classification system
  • Passenger airbag ON/OFF indicator
  • Airbag system (Front passenger side)
  • Seat belt warning system (Front passenger side)
 -
Distance control ECU Initialize radar cruise control system
  • Radar cruise control function
  • Pre-collision function
 -
Clearance warning ECU Initialize intuitive parking assist system Steering sensing function of intuitive parking assist system Drive the vehicle at more than 20 km/h (12 mph) for more than 5 minutes on a straight road with as little traffic congestion as possible.
Power window regulator motor assembly (Front RH, front LH, rear right RH, rear right LH) Initialize power window system
  • Door glass AUTO UP/DOWN function
  • Jam protection function
  • Key off (power switch OFF) operation function
  • Wireless transmitter-linked open function
  • Master switch remote control function
 Refer to windshield / window glass article (see INITIALIZATION )
  • ID code box
  • Certification ECU
  • Steering lock ECU
  • Door control receiver
  • Key
  1. Perform identification code registration (key code, ECU code)
  2. Refer to immobilizer article "REGISTRATION " procedures
  3. Perform seat "OPERATION CHECK"
  • Smart access system with push-button start
  • Wireless door lock control function
  • Engine start
  • Seat and mirror memory call operation
 When hybrid vehicle control ECU is replaced, registration of ECU communication ID is necessary
Steering column assembly (Steering lock ECU) Perform VGRS actuator neutral position calibration and initialization Steering wheel is off-center (even if steering wheel is in neutral position, tires are not straight ahead) Leads to VGRS actuator spiral cable open malfunction
  • Removal/installation, replacement or adjustment of anything between steering wheel and tires (not including the tires and wheels) (Example: steering wheel replacement; steering column assembly removal/installation; steering sliding yoke or steering actuator assembly replacement or removal/installation; tie rod replacement, removal/installation or adjustment)
  • Steering control ECU
 Perform VGRS actuator neutral position calibration and initialization Steering wheel is off-center (even if steering wheel is in neutral position, tires are not straight ahead) Leads to VGRS actuator spiral cable open malfunction
Mayday ECU and Mayday battery
  • Mayday ECU initialization
  • Mayday ECU registration / enrollment
 LEXUS link system -
Mayday battery
  • Mayday battery registration
  • Mayday battery confirmation
 DTC 6-1 remains output -
Key
(Only for vehicles with memory call settings present)		 Rerecord memory call function When using memory call, seat positions recorded in seat memory switches must also be rerecorded in key Refer to seat article (see ON-VEHICLE INSPECTION )
  • Sliding roof drive gear (Sliding roof ECU)
  • Sliding roof housing
  • Sliding roof drive cable
 Initialize sliding roof system
  • Auto operation
  • Sliding roof operation after power switch is turned OFF
  • Jam protection function
  • Wireless door lock control function
  • Key-linked operation function (Driver's door only)
  • Entry lock switch-linked operation
 -
  1. RESET MEMORY (FOR HYBRID TRANSMISSION SYSTEM) 
    NOTE:
    • If either the hybrid transmission assembly or hybrid vehicle control ECU is replaced, initialize the learned value of Reset Memory.
    • Wait 1 minute after disconnecting the negative battery terminal before reset memory.
    • The Reset Memory can be performed only with the Techstream.

    HINT:

    Disconnecting the negative battery terminal does not initialize (clear) the learned value.

    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (READY) and turn the Techstream on.
      NOTE: Check that the shift lever is in the P position and turn the power switch on (READY).
    3. Select the following menu items: Powertrain / Hybrid Control / Data List. Read the data list before performing Reset Memory.

      Check Item 

      CHECK ITEM

      Item Specified Condition
      +B 9 to 16 V
      WOUT Control Power 1 W or more
      T/M Oil Temperature 10 to 100°C (50 to 212°F)
      NOTE:
      • Do not depress the accelerator pedal during reset memory.
      • Do not move the shift lever from the P position.
      • If the specified conditions above are not satisfied, warm up the engine with the power switch on (READY) until each data meets the specified condition.
    4. Select the following menu items: Powertrain / Hybrid Control / Reset Memory.
    CAUTION: After performing the Reset Memory, be sure to perform the ROAD TEST (See ROAD TEST ) described earlier.
    NOTE: During reset memory, do not turn off either the power switch or the Techstream.

    HINT:

    • Approximately 1 minute is required to complete reset memory.
    • The ECU is learned by performing the ROAD TEST.
  2. REGISTRATION OF TRANSMITTER ID 
    1. Set the tire pressure of all the wheels to the specified value (See TIRE PRESSURE WARNING SYSTEM ).
    2. Turn the power switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the power switch on (IG).
    5. Turn the Techstream on.
    6. Perform the transmitter ID registration. Enter the following menus: Chassis / Tire Pressure Monitor / Utility/ID Registration.
    7. Select the registration mode "MAIN Set".

      HINT:

      • Check that the tire pressure warning select switch is in "MAIN".
      • When registering 2nd set, select the registration mode "2nd Set" after changing the tire pressure warning select switch to "2nd".
    8. Input the transmitter IDs (ID1 to ID4) using the Techstream and transmit them to the tire pressure warning ECU.
    9. The "ID Registration is complete" is displayed on the Techstream display.

    HINT:

    • The tire pressure warning light will continue to blink until the tire pressure warning ECU receives the input ID signals.
    • The previously registered IDs will be deleted from the memory when the registration is completed.
    • Registration can be performed during initialization. However, the initialization will be cancelled when the registration is started.
  3. CONFIRMATION OF TRANSMITTER ID REGISTRATION 
    1. Turn the power switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the power switch on (IG).
    4. Turn the Techstream on.
    5. Confirm that the data of tire pressure of all wheels are displayed on the Techstream display. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

    Tire Pressure Monitor: 

    TIRE PRESSURE MONITOR

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    ID1 Tire Inflation Pressure ID1 tire inflation pressure/min.: Absolute pressure/ 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure/ -100 kPa (-1 kgf/cm2 , -14 psi)
    max.: Absolute pressure/ 637.5 kPa (6.5 kgf/cm2 , 92 psi), Relative pressure/ 537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received. (*1)
    ID2 Tire Inflation Pressure ID2 tire inflation pressure/
    min.: Absolute pressure/ 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure/ -100 kPa(-1 kgf/cm2 , -14 psi)
    max.: Absolute pressure/ 637.5 kPa (6.5 kgf/cm2 , 92 psi), Relative pressure/ 537.5 kPa (5.4 kgf/cm2 ,78 psi)    		 Actual tire inflation pressure If 0 kPa(0 kgf/cm2 , 0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received. (*1)
    ID3 Tire Inflation Pressure ID3 tire inflation pressure/
    min.: Absolute pressure/ 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure/ -100 kPa(-1 kgf/cm2 , -14 psi)
    max.: Absolute pressure/ 637.5 kPa (6.5 kgf/cm2 , 92 psi), Relative pressure/ 537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received. (*1)
    ID4 Tire Inflation Pressure ID4 tire inflation pressure/
    min.: Absolute pressure/ 0 kPa (0 kgf/cm2 ,0 psi), Relative pressure/ -100 kPa (-1 kgf/cm2 , -14 psi)
    max.: Absolute pressure/ 637.5 kPa (6.5 kgf/cm2 , 92 psi), Relative pressure/ 537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received. (*1)
    NOTE:
  4. INITIALIZATION PROCEDURE (FOR TIRE PRESSURE WARNING SYSTEM) 
    1. Turn the power 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 (1 second on, 1 second off). If the engine is on, "PRESSURE INITIAL" will be displayed on the multi-information display.

      HINT:

      Initialization will be completed if signals are received from all the wheels.

    3. Turn the power switch off.
      Fig 1: Identifying Tire Pressure Warning Light And Blink Pattern
      G05301811Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Wait for 2 or 3 minutes with the power switch on (IG).
    NOTE:
    • The initialization is normally completed within 2 to 3 minutes.
    • If the initialization has not been completed successfully, DTC C2177/77 will be stored in the tire pressure warning ECU 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 TC and CG of the DLC3.
    Fig 2: Identifying Terminals TC And CG Of DLC3
    G04977824Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. CONFIRM INITIALIZATION HAS BEEN COMPLETED (FOR TIRE PRESSURE WARNING SYSTEM) 
    1. Check the data of tire pressure of all the wheels are displayed on the Techstream display to confirm that the initialization has been completed.
      1. Turn the power switch off.
      2. Connect the Techstream to the DLC3.
      3. Turn the power switch on (IG).
      4. Turn the Techstream on.
      5. Check the Data List. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

    Tire Pressure Monitor: 

    TIRE PRESSURE MONITOR

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    ID1 Tire Inflation Pressure ID1 tire inflation pressure/
    min.: Absolute pressure/ 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure/ -100 kPa (-1 kgf/cm2 , -14 psi)
    max.: Absolute pressure/ 637.5 kPa (6.5 kgf/cm2 , 92 psi), Relative pressure/ 537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa(0 kgf/cm2 , 0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received. (*1)
    ID2 Tire Inflation Pressure ID2 tire inflation pressure/
    min.: Absolute pressure/ 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure/ -100 kPa (-1 kgf/cm2 , -14 psi)
    max.: Absolute pressure/ 637.5 kPa (6.5 kgf/cm2 , 92 psi), Relative pressure/ 537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received. (*1)
    ID3 Tire Inflation Pressure ID3 tire inflation pressure/
    min.: Absolute pressure/ 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure/ -100 kPa(-1 kgf/cm2 , -14 psi)
    max.: Absolute pressure/ 637.5 kPa (6.5 kgf/cm2 , 92 psi), Relative pressure/ 537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa(0 kgf/cm2 , 0 psi) is displayed for absolute pressure or -100 kPa (-1 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received. (*1)
    ID4 Tire Inflation Pressure ID4 tire inflation pressure/
    min.: Absolute pressure/ 0 kPa (0 kgf/cm2 , 0 psi), Relative pressure/ -100 kPa (-1 kgf/cm2 , -14 psi)
    max.: Absolute pressure/ 637.5 kPa (6.5 kgf/cm2 , 92 psi), Relative pressure/ 537.5 kPa (5.4 kgf/cm2 , 78 psi)    		 Actual tire inflation pressure If 0 kPa (0 kgf/cm2 , 0 psi) is displayed for absolute pressure or-100 kPa (-1 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received. (*1)
    HINT:
  6. CLEAR STORED VALUE OF INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION (WHEN USING TECHSTREAM) 
    1. Connect the Techstream to the DLC3.
    2. Move the shift lever to the P position.
    3. Turn the power switch ON (IG) with the brake pedal released.
    4. Perform the Reset Memory function under the ABS/VSC/TRAC menu.
    5. Perform initialization of linear solenoid valve.
    6. Perform zero point calibration of yaw rate and acceleration sensor (See CALIBRATION ).
  7. PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION (WHEN USING TECHSTREAM) 
    1. Connect the Techstream to the DLC3.
    2. Move the shift lever to the P position.
    3. Turn the power switch ON (IG) with the brake pedal released.
      NOTE:
      • If the linear solenoid valve offset learning is performed without turning the power switch ON (IG), the learning process may not be completed properly because of insufficient battery voltage.
      • When the linear solenoid valve offset learning is interrupted, or the learning process is performed with the shift lever not in the P position, DTC C1345/66 will be stored.
    4. Set the Techstream to Test Mode (select "ECB* Utility").

      *: Electronically Controlled Brake

      HINT:

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

    5. Leave the vehicle stationary without depressing the brake pedal for 1 or 2 minutes.
    6. Check that the interval between blinks of the brake control warning light changes from 1 second to 0.25 seconds.

      HINT:

      • The time needed to complete initialization of linear solenoid valve and calibration varies depending on battery voltage.
      • The brake control warning light blinks at 1 second intervals during the initialization of linear solenoid valve and calibration. The brake control warning light blinks at 0.25 seconds intervals if the Test Mode is normal.
      Fig 3: Identifying Interval Between Blinks Of Brake Control Warning Light Changes From 1 Second To 0.25 Seconds
      G04949562Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. When the brake control warning light changes to the Test Mode display, check that DTC C1345/66, which indicates trouble with stroke sensor zero point learning, is not output.
    8. Enter the normal mode from the Test Mode following the Techstream prompts.

    HINT:

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

  8. CLEAR STORED VALUE OF INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION (WHEN USING SST CHECK WIRE) 
    1. Move the shift lever to the P position.
    2. Turn the power switch ON (IG) with the brake pedal released.
    3. 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 4: Identifying Terminals 12 (TS) And 4 (CG) Of DLC3
      G04949563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Check that no codes other than ABS code 42, VSC code 45 and electronically controlled brake system code 48, 66, or 95 are stored in the diagnostic system.
      Fig 5: Identifying ABS Code 42 And VSC Code 45
      G05813209Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • The ABS warning light and multi-information display do not indicate the normal system code.
      • Illustrations may differ from the actual screen displayed depending on the specifications of the vehicle and customized settings.
    5. Remove SST from the terminals of the DLC3.
    6. Using the check wire, perform initialization of linear solenoid valve and calibration.
  9. PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION (WHEN USING SST CHECK WIRE) 
    1. Turn the power switch OFF.
    2. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

      SST 09843-18040 

    3. Move the shift lever to the P position.
    4. Turn the power switch ON (IG) with the brake pedal released.
      NOTE:
      • If the linear solenoid valve offset learning is performed without turning the power switch ON (IG), the learning process may not be completed properly because of insufficient battery voltage.
      • When the linear solenoid valve offset learning is interrupted, or the learning process is performed with the shift lever not in the P position, DTC C1345/66 will be stored.
      Fig 6: Identifying Terminals 12 (TS) And 4 (CG) Of DLC3
      G04949563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Leave the vehicle stationary without depressing the brake pedal for 1 or 2 minutes.
    6. Check that the interval between blinks of the brake control warning light changes from 1 second to 0.25 seconds.

      HINT:

      • The time needed to complete initialization of linear solenoid valve and calibration varies depending on the battery voltage.
      • The brake control warning light blinks at 1 second intervals during the initialization of linear solenoid valve and calibration and changes to the Test Mode display.
      • The brake control warning light blinks at 0.25 seconds intervals if the Test Mode is normal.
      Fig 7: Identifying Interval Between Blinks Of Brake Control Warning Light Changes From 1 Second To 0.25 Seconds
      G04949562Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. When the brake control warning light changes to the Test Mode display, check that DTC C1345/66, which indicates trouble with stroke sensor zero point learning, is not output.
    8. Turn the power switch OFF and disconnect SST from the DLC3.
  10. CLEAR ZERO POINT CALIBRATION (WHEN USING TECHSTREAM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch ON (IG).
    3. Operate the Techstream to erase the codes (select "Reset Memory").

      HINT:

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

    4. Using the Techstream, perform zero point calibration of the yaw rate and acceleration sensor.
  11. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR (WHEN USING TECHSTREAM) 
    NOTE:
    • While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it. Keep it in a stationary condition and do not start the engine (hybrid).
    • Choose a level surface with an inclination of less than 1 degree.
    1. Procedures for Test Mode.
      1. Ensure that the steering wheel is centered, move the shift lever to the P position, and apply the parking brake.
        NOTE: DTC C1210/36 and C1336/39 will be recorded if the shift lever is not in the P position.
      2. Connect the Techstream to the DLC3.
      3. Turn the power switch ON (IG).
      4. Set the Techstream to Test Mode (select "Test Mode").

      HINT:

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

    2. Obtain the zero point of the yaw rate and acceleration sensor.
      1. Keep the vehicle stationary on a level surface for 2 seconds or longer.
      2. Check that the ABS and brake control warning lights blink and VSC test mode message is indicated on the multi-information display (Test Mode).

      HINT:

      • If the ABS and brake control warning lights do not blink and VSC test mode message is not indicated on the multi information display, perform zero point calibration again.
      • Illustrations may differ from the actual screen displayed depending on the specifications of the vehicle and customized settings.
      • The zero point calibration is performed only once after the system enters the Test Mode.
      • Calibration cannot be performed again until the stored data is cleared.
    3. Turn the power switch OFF and disconnect the Techstream.
    Fig 8: Identifying ABS Blink Pattern And VSC Test Mode Message
    G05813212Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. CLEAR ZERO POINT CALIBRATION (WHEN USING SST CHECK WIRE) 
    1. Turn the power 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 

    3. Check that no codes other than ABS code 42, VSC code 45 and electronically controlled brake system code 48, 66, or 95 are stored in the diagnostic system.
      Fig 9: Identifying Terminals 12 (TS) And 4 (CG) Of DLC3
      G04949563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 10: Identifying ABS Code 42 And VSC Code 45
      G05813209Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • The ABS warning light and multi-information display do not indicate the normal system code.
      • Illustrations may differ from the actual screen displayed depending on the specifications of the vehicle and customized settings.
    4. Remove SST from the terminals of the DLC3.
    5. Using a check wire, perform zero point calibration of the yaw rate and acceleration sensor.
  13. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR (WHEN USING SST CHECK WIRE) 
    NOTE:
    • While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking. Keep it in a stationary condition and do not start the engine (hybrid).
    • Choose a level surface with an inclination of less than 1 degree.
    1. Procedures for Test Mode.
      1. Turn the power switch OFF.
      2. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

        SST 09843-18040 

      3. Check that the steering wheel is in the centered position and move the shift lever to the P position.
      NOTE: DTC C1210/36 and C1336/39 will be recorded if the shift lever is not in the P position.
    2. Obtain the zero point of the yaw rate and acceleration sensor.
      Fig 11: Identifying Terminals 12 (TS) And 4 (CG) Of DLC3
      G04949563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Turn the power switch ON (IG).
      2. Keep the vehicle in a stationary condition on a level surface for 2 seconds or more.
      3. Check that the ABS and brake control warning lights blink and VSC test mode message is indicated on the multi-information display (Test Mode).

      HINT:

      • If the ABS and brake control warning lights do not blink and VSC test mode message is not indicated on the multi-information display, perform zero point calibration again.
      • Illustrations may differ from the actual screen displayed depending on the specifications of the vehicle and customized settings.
      • The zero point calibration is performed only once after the system enters the Test Mode.
      • Calibration cannot be performed again until the stored data is cleared.
    3. Turn the power switch OFF and disconnect the SST from the DLC3.
  14. INSTALL BRAKE PEDAL STROKE SENSOR ASSEMBLY 
    1. When installing a new brake pedal stroke sensor assembly:
      Fig 12: Identifying ABS Blink Pattern And VSC Test Mode Message
      G05807115Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install a new sensor with the 2 nuts.

        Torque: 8.5 N*m (87 kgf*cm, 75 in.*lbf) 

        NOTE:
        • Engage the sensor lever with the brake pedal groove.
        • Check that there is no foreign matter attached to the sensor's contacting surface.
      2. Firmly depress the brake pedal and break the sensor lever set pin.
      3. Remove the broken sensor lever set pin.
      4. Connect the sensor connector.
    2. When reusing the brake pedal stroke sensor assembly:
      1. Temporarily install the sensor with the 2 nuts.
        NOTE:
        • Engage the sensor lever with the brake pedal groove.
        • Check that there is no foreign matter attached to the sensor's contacting surface.
        Fig 13: Locating Brake Pedal Stroke Sensor Nuts
        G05297197Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Connect the sensor connector.
      3. Connect the cable to the negative battery terminal.
      4. Connect the Techstream to the DLC3.
      5. Turn the power switch ON (IG). Reading the stroke sensor value shown on the data monitor, turn the sensor slowly to the right and left to adjust the output voltage to the standard voltage.

        Standard voltage: 0.8 to 1.2 V 

      6. Disconnect the cable from the negative battery terminal.
      7. Tighten the 2 nuts.

      Torque: 8.5 N*m (86 kgf*cm, 75 in.*lbf) 

      NOTE: Do not depress the brake pedal after turning the power switch ON (IG).
      Fig 14: Turning Sensor Slowly To Right And Left To Adjust Output Voltage To Standard Voltage
      G05813218Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. VGRS SYSTEM CALIBRATION PROCEDURE (USING SST CHECK WIRE) 
    1. FACE TIRES STRAIGHT AHEAD 
      NOTE: Drive the vehicle to confirm that the steering wheel is centered.
    2. CHECK DTC 
      1. Check for DTCs (see DTC CHECK / CLEAR ).

      Result 

      RESULT REFERENCE CHART

      Result Proceed to
      DTC C1591/51 is not output A
      DTC C1591/51 Is output B

      B:  Go to step  4

      A: Go to Next Step 

    3. PERFORM ACTUATOR ANGLE INITIALIZATION 

      SST 09843-18040 

      1. Turn the power switch ON (IG).
      2. Start the engine.
      3. Center the steering wheel.
      4. Complete the following steps within 1 minute.
        1. Using SST, connect terminals 12 (TS) and 4 (CG), and 13 (TC) and 4 (CG) of the DLC3.
        2. Disconnect the SST check wire from terminal 12 (TS) of the DLC3, and turn the steering wheel to the left 180° or more.
        3. Connect the SST to terminal 12 (TS) of the DLC3.
        4. Disconnect the SST from terminal 13 (TC) of the DLC3, and turn the steering wheel to the right 180° or more.
        5. Connect the SST to terminal 13 (TC) of the DLC3.

        HINT:

        When the master warning light (VGRS) comes on, DTC C1591/51 is memorized.

        Fig 15: Identifying Terminals 12 (TS), 4 (CG) And 13 (TC) Of DLC3
        G05813219Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Disconnect the SST from the DLC3.
      6. Turn the power switch OFF.

      NEXT:  Go to step  1

    4. FACE TIRES STRAIGHT AHEAD 
      1. Confirm that the steering wheel is centered when facing the tires straight ahead.
      NOTE: Drive the vehicle to confirm that is steering wheel is centered.

      Result 

      RESULT REFERENCE CHART

      Result Proceed to
      Steering wheel Is off-center A
      Steering wheel is centered B

      B:  Go to step  8

      A: Go to Next Step 

    5. UNLOCK STEERING ACTUATOR 
      NOTE: Do not start the engine.
      1. Turn the power switch OFF.
      2. Disconnect the negative (-) terminal cable from the battery.
      3. Disconnect the K26 connector from the steering actuator.
      4. Connect a jumper wire from terminal LV+ to the positive (+) battery terminal and another jumper wire from terminal LG+ to the negative (-) battery terminal.
      NOTE: Do not apply voltage for more than 3 minutes.
      Fig 16: Disconnecting K26 Connector From Steering Actuator
      G05301828Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. STEERING CENTER ADJUSTMENT 
      1. Center the steering wheel.
      NOTE: If the spiral cable of the airbags and VGRS system is not centered when the steering wheel is installed, release the system lock and center the spiral cable (see INSTALLATION ). Slowly turn the steering wheel to the left. Turn it to the right approximately 2 turns from the point where resistance begins to be felt (the end of the spiral cable) while steering. This will center the spiral cable. If excessive force is applied to the end of the spiral cable, the cable may break.
    7. LOCK STEERING ACTUATOR 
      1. Disconnect the positive (+) and negative (-) battery terminal cables from the steering actuator.
      2. Connect the K26 connector to the steering actuator.
      3. Connect the negative (-) terminal cable to the battery.
      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 detected. If a DTC is detected, perform the above procedures again and then check for DTCs.
      • Perform these procedures with the power switch OFF.

      NEXT:  Go to step  1

    8. ADJUST ACTUATOR ANGLE 

      HINT:

      Activating and ending test mode will complete actuator angle adjustment.

      1. Make sure the power 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.

        SST 09843-18040 

      3. Turn the power switch ON (IG).
      4. Confirm that the "VGRS TEST MODE" is displayed on the multi-information display when test mode is activated.
      5. Turn the power switch OFF.
      6. Disconnect the SST from terminals 12 (TS) and 4 (CG) of the DLC3.
      7. Turn the power switch ON (IG) again.
      Fig 17: Identifying Terminals 12 (TS) And 4 (CG) Of DLC3
      G05813219Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. CHECK MASTER WARNING LIGHT 
      1. Confirm that the master warning light (VGRS) is off.
      2. Turn the power switch OFF.
      3. Confirm that master warning light (VGRS) is operating normally.
    10. CHECK STEERING WHEEL OPERATION 
      1. Start the engine.
      2. Perform the steering angle sensor initialization (see 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.

    NEXT: END 

  16. VGRS SYSTEM CALIBRATION PROCEDURE (USING TECHSTREAM) 
    1. FACE TIRES STRAIGHT AHEAD 
      NOTE: Drive the vehicle to confirm that the steering wheel is centered.
    2. PERFORM VGRS SYSTEM CALIBRATION 
      1. Connect the Techstream to the DLC3.
      2. Turn the power 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.
    3. CHECK MASTER WARNING LIGHT 
      1. Confirm that the master warning light (VGRS) is off.
      2. Turn the power switch OFF.
      3. Disconnect the Techstream from the DLC3.
      4. Turn the power switch ON (IG).
      5. Confirm that master warning light (VGRS) is operating normally.
    4. CHECK STEERING WHEEL OPERATION 
      1. Start the engine.
      2. Perform the steering angle sensor initialization (see 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.

    NEXT: END 

  17. ROTATION ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION 
    NOTE: Clear the rotation angle sensor calibration value, initialize the rotation angle sensor, and calibrate the torque sensor zero point if any of the following has occurred:
    • The power steering ECU has been replaced.
    • The power steering link assembly has been replaced.
    • Steering effort differs between turning the steering wheel to the left and right.
    1. Inspection before calibration
      1. Connect the Techstream to the DLC3.
      2. Turn the power switch ON (IG).
      3. Turn the Techstream on.
      4. Check the IG power supply voltage on the Techstream. Enter the following menus: Chassis / EMPS / Data List.

      EMPS 

      EMPS REFERENCE CHART

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      IG Power Supply ECU power source voltage/ Min.: 0 V, Max.: 25.5 V 10 to 14 V Power switch ON (IG)

      Standard Voltage: 10 to 14 V 

      NOTE: If the IG power supply voltage is 9 V or less, calibration cannot be performed. In this case, charge or replace the battery, and then perform calibration.
    2. Rotation angle sensor calibration value clear, rotation angle sensor initialization, and torque sensor zero point calibration
    NOTE:
    • If DTC C1516 (Torque Sensor Zero Point Adjustment Incomplete) is stored, the torque sensor zero point cannot be calibrated. Clear the DTC before starting calibration.
    • If DTC C1526 (Rotation Angle Sensor Initialization Incomplete) is stored, the rotation angle sensor cannot be initialized. Clear the DTC before starting initialization.
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch ON (IG).
    3. Turn the Techstream on.
    4. Follow the procedures on the Techstream display to clear the rotation angle sensor calibration value, initialize the rotation angle sensor, and calibrate the torque sensor zero point. Enter the following menus: Chassis / EMPS / Utility / Torque Sensor Adjustment.
    NOTE:
    • When initializing the rotation angle sensor, observe the following to stabilize sensor voltage:

      After turning the power switch ON (IG), wait for at least 2.5 seconds before turning the steering wheel. Do not turn the steering wheel quickly.

    • The steering wheel will vibrate during torque sensor zero point calibration. Do not touch the steering wheel while it is vibrating or for 2 seconds after it stops.
    NOTE: Make sure that the front passenger seat is not occupied before performing the operation.

    HINT:

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

    • The 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.
  18. ZERO POINT CALIBRATION (FOR OCCUPANT CLASSIFICATION SYSTEM) 
    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 ITEM REFERENCE CHART

      Adjustment Item Position
      Slide Direction Rearmost position
      Reclining Angle Upright position
      Headrest Height Lowest position
      Lifter Height Lowest position
    3. Connect the Techstream to the DLC3.
    4. Turn the power switch ON (IG).
    5. Perform the 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.

    HINT:

    *1: If After Exchange is selected before the previous ECU data are stored in the Techstream, the display screen returns to CONDITION SELECT ECU: Occupant Detect.

    ITEM REFERENCE CHART

    Item Procedure
    DTC Perform DTC check and repair
    Write error Replace front seat cushion assembly (with occupant classification ECU and occupant detection sensor)
    Temperature Check value of THERMISTOR TEMP in ECU DATA LIST
    Pressure Check value of FILTERED PRESS in ECU DATA LIST
    Crash counter -
  19. REGISTRATION (FOR OCCUPANT CLASSIFICATION SYSTEM) 
    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 front seat cushion (with occupant classification ECU and occupant detection sensor).

    HINT:

    • When the 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 erased even when the Techstream is turned off.
    • ECU EXCHANGE procedure (Before Exchange) describes the procedure to save the data in the Techstream from the occupant classification ECU which has been installed on the vehicle. ECU EXCHANGE procedure (After Exchange) describes the procedure to load the data from the previous ECU, stored in the Techstream, into the new ECU.
    1. Connect the Techstream to the DLC3.
    2. Turn the power 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 front seat cushion (with occupant classification ECU and occupant detection sensor).

    4. Turn the power switch ON (IG).
    5. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
    6. Replace the occupant classification ECU (See DISASSEMBLY ).
    7. Connect the negative (-) terminal cable to the battery.
    8. Turn the power 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 power switch OFF.
    11. Turn the power switch ON (IG).
    12. Clear the DTCs stored in the memory (See DTC CHECK / CLEAR ).
  20. INITIALIZE DISTANCE CONTROL ECU 
    NOTE: When replacing the distance control ECU, perform the following procedures so that the ECU can recognize the specification.
    1. Be sure to perform the following procedures after replacing the distance control ECU.
    1. Turn the power switch ON (IG).
    2. Push the cruise main switch ON.
    3. With the brake pedal depressed, push the cruise control main switch to RES/ACC 3 times within 3 seconds. Check that the VSC buzzer sounds at this time.
    NOTE: Do not turn the headlight dimmer switch on at this time because optical axis automatic adjustment mode has already started, which could lead to an incorrect optical axis setting. If the headlight dimmer switch is turned on by mistake, readjust the optical axis.
  21. ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY 
    CAUTION: Exposure to radio frequency emissions is hazardous to your health. It is hazardous to your health to be within 20 cm (7.9 in.) of the device's radio frequency aperture.
    NOTE:
    • This device complies with FCC radio frequency emission regulations.
    • Perform measurements on a level surface.
    • Make sure that no large pieces of metal are within a 10 m (32.81 ft.) x 14 m (45.93 ft.) area in front of the vehicle. If possible, the surrounding area should also be free of large metal objects.
    Fig 18: Identifying 10 m (32.81 ft.) x 14 m (45.93 ft.) Area In Front Of Vehicle
    G05301840Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Before adjusting the radar beam axis, prepare the vehicle as follows.
      1. Check the tire pressure and adjust it if necessary.
      2. Remove all excess weight from the vehicle (luggage, heavy objects, etc.).
    2. w/ Air suspension:

      Adjust the vehicle's height to the standard height.

    3. Check and adjust the vertical direction of the radar sensor.
      1. Remove dust, oil and foreign matter from the radar sensor's level rack.
      2. Set a level on the radar sensor's level rack.
        Fig 19: Identifying Level On Radar Sensor's Level Rack
        G05811022Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Check that the level's air bubble is within the red frame.

      OK: Level's air bubble is within red frame. 

      If the bubble is not within the red frame, use a screw driver to adjust bolt A until the level's air bubble is within the red frame.

      HINT:

      • The adjustable range within the level's red frame is +-0.2°.
      • The target angle is +0.2° (upward angle of 0.2°).
      Fig 20: Checking That Level's Air Bubble Is Within Red Frame
      G05813224Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE CHART

      Adjustment Direction Adjustment Procedure Adjustment Angle
      Vertical adjustment
      • Left direction: Turn bolt A to negative (-) side
      • Right direction: Turn bolt A to positive (+) side
      		 For every 8.4 rotations of adjustment bolt, sensor moves about 1°
    4. Adjust the reflector height.
      1. Adjust the reflector so that the center of the SST reflector is the same height as the millimeter wave radar sensor.

      SST 09870-60000 

      HINT:

      Prepare a 10 m (32.81 ft.) string, a string with a sharp-pointed weight (plumb bob), and a 5 m (16.41 ft.) tape measure.

      Fig 21: Adjusting Reflector Height
      G05811024Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Place the reflector.
      1. Hang the string (with weight) from the center of the vehicle rear's emblem. Mark the vehicle rear's center point on the ground. Repeat for the front of the vehicle.
      2. Set one end of the 10 m (32.81 ft.) string on the vehicle rear's center point. Run the string over the vehicle front's center point to a position 5 m (16.41 ft.) beyond the vehicle front's center point, as shown in the illustration. Mark the 5 m (16.41 ft.) position.
      3. Using a tape measure, measure 12 mm (0.47 in.) to the right of the 5 m (16.41 ft.) position. Place the reflector at that position.
      Fig 22: Running String Over Vehicle Front's Center Point To Position 5 m (16.41 ft.) Beyond Vehicle Front's Center Point
      G05306764Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 23: Measuring 12 mm (0.47 in.) To Right Of 5 m (16.41 ft.) Position
      G05813227Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Perform the operation as precisely as possible.
    6. Check the radar beam axis.
      1. Connect the Techstream to the DLC3.
      2. Turn the power switch on (IG).
      3. Turn the Techstream main switch on, and turn the cruise control main switch on.
      4. Select "Connect to Vehicle".
      5. Select each item on the display screen and proceed to the next screen.
      6. Under "System Selection Menu", select "Radar Cruise".
      7. Select "Utility".
      8. Select "Beam Axis Adjustment" and proceed to the next screen.
      9. Follow the Techstream display, and continue with the adjustment.
      10. Confirm that the distance value is approximately 5 m (16.41 ft.).
      11. Check the following items on the laser cruise divergence data screen.
        1. Check that a value between 0.0 and 6.3 is displayed in the meter display, area A.
        2. Check that a value between 0.0 and 20.7 is displayed in the feet display, area B.
        3. Check that Left Side or Right Side is displayed in area C.
        4. Check that an angle value between 0.0 and 6.3 is displayed in area D.

        HINT:

        If the distance is 0 m (0 ft.), the sensor cannot detect the target. Reconfirm that there is no metal in the specified area in front of the vehicle (refer to  21for NOTICE at the beginning of this adjustment procedure).

        Fig 24: Identifying Laser Cruise Divergence Data Screen
        G05751361Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Check and adjust the horizontal direction of the radar sensor.
      1. Check that the divergence of the radar beam axis is 0°.

        Standard: 0° (Both right and left) 

        If the axis is not as specified, use a screwdriver to adjust bolt B until the divergence of the radar beam axis is 0°.

      2. Based on the measured divergence of the beam axis, turn and adjust bolt B for horizontal adjustment of the millimeter wave radar sensor using a screw driver.
        Fig 25: Turning Bolt B For Horizontal Adjustment Of Millimeter Wave Radar Sensor
        G05811028Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Result 

        RESULT REFERENCE CHART

        Adjustment Direction Adjustment Procedure Adjustment Angle
        Horizontal adjustment
        • Right direction: Turn bolt B to positive (+) side.
        • Left direction: Turn bolt B to negative (-) side.
        		 For every 18.6 rotations of adjustment bolt, sensor moves about 1 °

        HINT:

        • If "LEFT SIDE: 1.0°" is displayed, the divergence is 1.0° in the left direction. Turn bolt B approximately 3 turns to the negative (-) side.
        • If the value does not change to 0°, it is possible that the sensor is aiming at something different. Reconfirm that there are no reflective materials in the surrounding area.
      3. Reset the radar sensor's driving learning values.
        1. Prepare a type of metal that can block radio waves, such as aluminum foil.
        2. Cover the radar sensor's right half with the metal for 10 seconds.
        NOTE: Be sure to keep the reflector in place and make sure that there is nothing between the sensor's left half and the reflector.

        HINT:

        When the reset is completed, the buzzer sounds for 10 seconds.

      4. Disconnect the Techstream from the DLC3.
      Fig 26: Identifying Metal That Can Block Radio Waves
      G05811029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Recheck and readjust the vertical direction of the radar sensor.
      1. Set a level on the radar sensor's level rack.
        Fig 27: Identifying Level On Radar Sensor's Level Rack
        G05811022Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Check that the level's air bubble is within the red frame.

      OK: Level's air bubble is within red frame. 

      If the bubble is not within the red frame, use a screw driver to adjust bolt A until the level's air bubble is within the red frame.

      HINT:

      • The adjustable range within the red frame is +-0.2°.
      • The target angle is +0.2° (upward angle of 0.2°).
      Fig 28: Checking That Level's Air Bubble Is Within Red Frame
      G05811023Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Result 

    RESULT REFERENCE CHART

    Adjustment Direction Adjustment Procedure Adjustment Angle
    Vertical adjustment
    • Left direction: Turn bolt A to negative (-) side
    • Right direction: Turn bolt A to positive (+) side
    		 For every 8.4 rotations of adjustment bolt, sensor moves about 1°
  22. REGISTRATION (FOR LEXUS LINK SYSTEM) 

    HINT:

    • Turn the power switch OFF and disconnect the vehicle battery before replacing the mayday ECU (together with mayday battery) or when just replacing the mayday battery.
    • Historic DTCs may be set if the vehicle battery is not disconnected during ECU installation/replacement.
    • The mayday ECU estimates the remaining power of the mayday battery based on the mayday battery usage time.
    REGISTRATION PROCEDURE CHART

    Replaced part Registration procedure
    Mayday ECU and mayday battery
    • Mayday ECU initialization
    • Mayday ECU registration / enrollment
    Mayday battery only
    (When DTC 6-1 is detected 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 power 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 mayday ECU 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  b"MAYDAY ECU 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 "MAYDAY ECU 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 an 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. MAYDAY ECU INITIALIZATION

      HINT:

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

      1. Turn the power switch from OFF to ON (IG) (engine does not have to be running).
      2. The mayday ECU will perform the Factory Mode Start Sequence for approximately 30 seconds.

        HINT:

        • In Factory Mode, for each power 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 detected 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 power switch must be ON (IG) for the SERVICES button to function). Additionally, after each power 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 will repeat 5 times if a DTC is set) will occur after each power 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 set. Refer to DIAGNOSTIC TROUBLE CODE CHART .
        • Do not push any buttons during any start sequences (LED flashing or voice prompts).
    3. MAYDAY ECU REGISTRATION / ENROLLMENT
      1. Turn the power switch ON (IG) and wait for the 5 second LED flash start sequence. Press the SERVICES button when the mayday ECU 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 "MAYDAY ECU 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 mayday ECU. 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 power 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 mayday ECU 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 set, do not perform the new mayday battery registration (the battery is already registered to the ECU that it is connected to).
      1. Turn the power 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 approximately a 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 set in Factory Mode after this start sequence. This can be confirmed if the red LED remains on and an additional 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, cycle the power switch to OFF then ON (IG). Wait for the start sequence to complete. The new mayday battery is now registered to the mayday ECU and DTC 6-1 should be cleared.

      HINT:

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

    5. MAYDAY BATTERY CONFIRMATION
    1. After replacement check: If the "MAYDAY BATTERY REGISTRATION BUTTON SEQUENCE" has been completed, turn the power 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, current DTC 6-1 will continue to be detected 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.
  23. PERFORM INITIAL SETTING OF STEERING ANGLE MID-POINT AND MAXIMUM STEERING ANGLE 

    HINT:

    The mid-point learning operation (steering angle midpoint, maximum steering angle) can be performed using 4 methods:

    MID-POINT LEARNING OPERATION CHART

    Method 1 Use the Techstream to perform initial setting of mid-point When clearance warning ECU is replaced
    When steering wheel mid-point or wheel alignment is adjusted
    When cable of battery terminal is disconnected and reconnected
    When malfunction causes momentary drop in the power supply voltage (due to cranking, depleted battery, etc.)
    When steering angle sensor is removed and installed
    When steering angle sensor is replaced
    Method 2 Use customize mode to perform initial setting of mid-point When clearance warning ECU is replaced
    When steering wheel mid-point or wheel alignment is adjusted
    Method 3 Perform steering angle mid-point learning operation by rotating steering wheel to left and right full lock position When battery terminal is disconnected and reconnected
    When malfunction causes momentary drop in the power supply voltage (due to cranking, depleted battery, etc.)
    When steering angle sensor is removed and installed
    When steering angle sensor is replaced
    Method 4 Perform steering angle mid-point learning operation by traveling in approximate straight line for extended distance When battery terminal is disconnected and reconnected
    When malfunction causes momentary drop in the power supply voltage (due to cranking, depleted battery, etc.)
    When steering angle sensor is removed and installed
    When steering angle sensor is replaced
    1. Method 1 (Techstream)
      1. Turn the power switch off.
      2. Connect the Techstream to the DLC3.
      3. Turn the power switch ON (IG).
      4. Turn the Techstream on.
      5. Enter the following menus: Body Electrical / INTUITIVE P/A / Utility.
      6. Perform the STEERING INITIALIZATION procedure.
    2. Method 2 (Manual operation method)
      1. Using customize mode, set the mid-point and maximum steering angle.
      Fig 29: Method 2 Flow Chart (Manual Operation Method)
      G05813233Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • *1: Steering wheel is centered (tires aligned straightforward).
      • *2: If 180 seconds pass, steering angle midpoint setting and maximum steering angle range setting will not occur and initialize mode will end.

      Multi-information Display Indication Settings in Each Mode 

      MULTI-INFORMATION DISPLAY INDICATION SETTINGS CHART

        [1] [2] [3] [4] [5] [6] m [8] m [10] Note
      {A} • X X X X - X Δ Δ Δ [8], [9], [10] will illuminate if steering wheel midpoint is not set
      {B} •
      ↓
      ◦      		 X
      ↓
      ◦      		 X X
      ↓
      ◦      		 X - X •
      ↓
      ◦      		 •
      ↓
      ◦      		 •
      ↓
      ◦      		 [1], [8] to [10] will illuminate for 2 seconds: then [1]. PI, [4], [8] to [10] will flash
      {C} ◦ ◦ X ◦ X X X X X X [1], [2], [4] will flash
      • : Illumination
      ◦ : Flashing
      Δ : Flashes depending on condition
      x: No illumination or flashing
    3. Method 3 (Manual operation method)
      1. Turn the power switch on (IG).
      2. Turn the clearance sonar main switch ON.
      3. Turn the steering wheel to the full left and right lock position.
      NOTE: Make sure to completely turn the steering wheel to the left and right full lock position.
    4. Method 4 (Manual operation method)
    1. At an area with few turns and curves, and minimal traffic, drive at 20 km/h (12 mph) or more for 5 minutes or more.
  24. 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 line may have a malfunction.
    • If the initialization is not completed properly, the BEAN communication system may have a malfunction (See HOW TO PROCEED WITH TROUBLESHOOTING ).
    1. Initialization procedures when replacing the power window regulator motor with a new one:
      1. Connect the battery and turn the power 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 initialization is complete.
    2. Initialization procedures when removing/installing the power window regulator motor:
      1. Connect the battery and turn the power 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 initialization.
    3. Initialization procedures when the power window does not fully open:
      1. Connect the battery and turn the power 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 initialization.
  25. RESET SLIDING ROOF SYSTEM 
    NOTE: When replacing the sliding roof drive gear or sliding roof related parts, the sliding roof drive gear requires initialization. If a reset is not executed, the following functions do not operate: auto operation, jam protection function, key off operation, key-linked open and close, and transmitter-linked open and close.
    1. Turn the power switch ON (IG).
    2. If the sliding roof is opened, close it fully.
    3. Push the SLIDE CLOSE switch or TILT UP switch, making the sliding roof operation as follows:

      Tilt up → Approximately 1 second → tilt down → slide open → slide close

    4. Sliding roof stops at the fully closed position.
    5. Finish the initialization.
    6. Check that the operation works normally with AUTO operation.
    NOTE: If the following conditions occur while operating, initialization will fail.
    • Power switch is turned OFF.
    • Pushed switch is released while sliding roof is operating.
    • Vehicle speed is 5 km/h (3 mph) or higher.
    • Battery of sliding roof ECU is 1 V or higher.
    • Communication is cut off.

    HINT:

    • If the sliding roof cannot fully close or its position has become misaligned, perform the initialization again.
    • If the sliding roof TILT UP switch or SLIDE CLOSE switch is pressed and held until the roof glass has either stopped moving or started moving in the opposite direction, and then the switch is held for another 10 seconds or more, perform the initialization again.
    • If the AUTO operation function and jam protection function do not operate after the drive gear has been reset, replace the sliding roof drive gear (sliding roof ECU).
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