Repair Instruction: Initialization
- PROCEDURES NECESSARY WHEN BATTERY TERMINAL IS DISCONNECTED/RECONNECTED INITIALIZATION PROCEDURES CHART (WHEN ECU OR OTHER PARTS REPLACED)
Necessary Procedure Procedure Detail Effects/Inoperative Functions When Necessary Procedures are not Performed Note Reset power window regulator motor - Turn the engine switch on (IG)
- Halfway open the power window by pressing the power window switch
- Fully pull up the switch until the power window is fully closed and continue to hold the switch for approx 1 second after the power window is fully closed.
- AUTO UP / DOWN function
- Power window operation function
- Transmitter-linked function
- Key-linked function
- Jam protection function
Be sure to reset the power window regulator motors using the power window switch on each door because the motors cannot be reset by remote operation using the multiplex network master switch assembly NOTE: It may not be possible to release the steering lock or start the engine when the battery voltage is low. If this occurs, initialization of the steering lock system is required. (See INITIALIZATION ) - PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED REPLACED PARTS AND ROAD TEST CHART
Replacement Part Necessary Procedure Effect / Inoperative Function when Necessary Procedure is not Performed Note ECM - Reset memory (Automatic transmission system)
- Perform road test to allow TCM to learn (Automatic transmission system)
- Initialize distance control ECU (Dynamic radar cruise control system)
- Large shift shock
- The deterioration of fuel efficiency
- Dynamic radar cruise control system
- Pre-collision system
- Code registration (Engine immobilizer system) Engine start - Vehicle Identification Number (VIN) registration MIL comes on Using the Techstream Engine assembly - Reset memory (Automatic transmission system)
- Perform road test to allow TCM to learn (Automatic transmission system)
- Large shift shock
- The deterioration of fuel efficiency
- Distance control ECU Initialize distance control ECU (Dynamic radar cruise control system) - Dynamic radar cruise control system
- Pre-collision system
Do not turn the headlight dimmer switch on at this time because the optical axis automatic adjustment mode has already started Otherwise, the optical axis will be set incorrectly If the headlight dimmer switch is turned on by mistake, readjust the optical axis Millimeter wave radar sensor assembly Adjust millimeter wave radar sensor assembly (Dynamic radar cruise control system) - Dynamic radar cruise control system
- Pre-collision system
- Automatic transmission assembly - Set transmission compensation code (step 1) (Automatic transmission system) (1)
- Perform road test to allow TCM to learn (Automatic transmission system)
- Large shift shock
- The deterioration of fuel efficiency
- - Valve body assembly
- Shift solenoid valve SL1, 2, 3, 4 and 5
Perform road test to allow TCM to learn (Automatic transmission system) - Large shift shock
- The deterioration of fuel efficiency
- TCM (If possible, read the transmission compensation code from the previous TCM) - Transfer transmission compensation code (step 2) (Automatic transmission system) (2)
- Perform road test to allow TCM to learn (Automatic transmission system)
- Large shift shock
- The deterioration of fuel efficiency
- TCM (If impossible, read the transmission compensation code from the previous TCM) - Set transmission compensation code (step 1) (Automatic transmission system) (3)
- Perform road test to allow TCM to learn (Automatic transmission system)
- Large shift shock
- The deterioration of fuel efficiency
- - Tire pressure warning ECU and receiver
- Tire pressure warning valve and transmitter
Code registration (Tire pressure warning system) - When DTC detection conditions of "transmitter ID not received" DTC are met, TPWS indicator blinks for 1 minute, and then illuminates
- Tire pressure warning function
- Skid control ECU Perform yaw rate and acceleration sensor zero point calibration and store system information (Vehicle Stability Control system) - Master caution indicator light illumination
- VSC warning display of multi-information display
- ABS warning light illumination
- VSC disabled or malfunctioning
Perform yaw rate and acceleration sensor zero point calibration and store system information with the engine switch on (IG) (engine stopped) - Yaw rate and acceleration sensor
- Front wheel alignment adjustment
- Clearing zero point calibration data system information (Vehicle Stability Control system)
- Perform yaw rate and acceleration sensor zero point calibration and store system information (Vehicle Stability Control system)
- Master warning light illumination
- VSC warning display of multi-information display
- ABS warning light illumination
- VSC disabled or malfunctioning
Perform yaw rate and acceleration sensor zero point calibration and store system information with the engine switch on (IG) (engine stopped) - Power steering ECU
- Power steering gear assembly
Rotation angle sensor value initialization and torque sensor zero point calibration (Power steering system) - Steering wheel off-center
- Difference in amount of steering assist between left and right
- DTC output
- EPS control
- - Certification ECU (smart key ECU assembly)
- ID code box (immobilizer code ECU)
- Steering lock ECU
- Key
Code registration (Engine immobilizer system) - Wireless door lock control system
- Smart Access System
- Engine start
- Occupant classification ECU - Zero point calibration (Occupant classification system)
- Sensitivity check (Occupant classification system)
- Occupant classification system
- Passenger airbag ON/OFF indicator
- Airbag system (Front passenger side)
- Seat belt warning system (Front passenger side)
- Seat belt control ECU Initialization (Pre-collision system) Pre-collision system - - Multiplex network master switch assembly
- Multiplex network switch assembly
- Wire harness
- Power window regulator
- Power window motor
Reset (initialize) power window regulator motor (Power window control system) - AUTO UP / DOWN function
- Power window operation function
- Transmitter-linked function
- Key-linked function
- Jam protection function
Initialization is also necessary if a power window fuse is removed or the wiring harness is disconnected - Sliding roof drive gear (Sliding roof ECU)
- Sliding roof housing
- Sliding roof drive cable
Reset sliding roof drive gear sub-assembly (Sliding roof system) - AUTO operation
- Sliding roof operation after engine switch is turned off
- Jam protection function
- Transmitter-linked operation function
- Key-linked operation function (Driver's door only)
Necessary when removed and installed (Not necessary when the sliding roof drive gear (sliding roof ECU) is removed and installed together with the sliding roof housing) (1) New automatic transmission's compensation code (2) Read the compensation code from the previous TCM, then transfer it to the new TCM. (3) Set the transmission compensation code of the current automatic transmission - RESET MEMORY (Automatic transmission system) NOTE:
- Reset Memory can be performed only with the Techstream.
- Reset Memory cannot be completed by only disconnecting and reconnecting the cable to the negative (-) battery terminal.
HINT.
The TCM (ECT) memorizes the vehicle conditions when controlling the automatic transmission assembly and engine assembly
- The "Reset Memory" procedure is as follows
- Turn the engine switch off.
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)
- Turn the Techstream on
- Enter the following menus' Powertrain / ECT / Utility / Reset MemoryNOTE: After performing the Reset Memory, be sure to perform the Road Test described previously (See ROAD TEST ).
- PERFORM ROAD TEST TO ALLOW TCM TO LEARN (Automatic transmission system) CAUTION:
- Perform the following procedures while strictly observing all traffic laws and speed limits.
- Do not accelerate or decelerate rapidly.
- "Road test" procedure is as follows
- Warm up the engine
- According to the replaced parts, perform the road test shown belowECU REPLACEMENT AND KEY REGISTRATION PROCEDURES CHART
Replaced Parts Road Test - Automatic transmission assembly
- TCM
- Valve body assembly
- Shift solenoid valve SL3
- Engine assembly
- ECM
Perform pattern 1, 2 and 3
Pattern 1.*1
With shift lever in D, after gradually accelerating to 50 km/h (31 mph) or more, gradually decelerate to approx 30 km/h (19 mph)
Pattern 2:
When driving at approximately 50 km/h (31 mph) with the D4 range selected, release the accelerator pedal to allow the vehicle to decelerate gradually to approximately 10 km/h (6 mph)
Pattern 3.*2
With shift lever in M and 5th gear selected, accelerate to a speed higher than 50 km/h (31 mph) While gradually decelerating, downshift to 4th gear at approx 50 km/h (25 mph), to 3rd gear at approx 40 km/h (25 mph), and to 2nd gear at approx 30 km/h (19 mph)- Shift solenoid valve SL1
- Shift solenoid valve SL2
- Shift solenoid valve SL4
- Shift solenoid valve SL5
Perform pattern 1 and 3
Pattern 1:*1
With shift lever in D, after gradually accelerating to 50 km/h (31 mph) or more, gradually decelerate to approx 30 km/h (19 mph)
Pattern 3 *2
With shift lever in M and 5th gear selected, accelerate to a speed higher than 50km/h (31 mph) While gradually decelerating, downshift to 4th gear at approx 50 km/h (25 mph), to 3rd gear at approx 40 km/h (25 mph), and to 2nd gear at approx 30 km/h (19 mph)HINT - *1. After gradually accelerating for a distance of approximately 130 m (426.4 ft) for a period of approximately 15 seconds, gradually decelerate for a distance of approximately 45 m (147.6 ft) for a period of approximately 5 seconds
- *2: Accelerate the vehicle to a speed slightly higher than 50 km/h (31 mph)
Move the shift lever to M and select 5th gear Release the accelerator pedal and allow the vehicle to decelerate gradually When the vehicle decelerates to approximately 50 km/h (31 mph), downshift to 4th gear.
When the vehicle decelerates to approximately 40 km/h (25 mph), downshift to 3rd gear
When the vehicle decelerates to approximately 30 km/h (19 mph), downshift to 2nd gear.
- When decelerating, apply the brakes as necessary to adjust the vehicle speed
HINT.
- *1. The speed, time and distance values are approximate values
- *2. After accelerating, the deceleration does not need to be performed immediately.
- *3. There is no specified time or distance.
- Repeat the road tests until the shift shock and engine speed overrun (engine speed flare when shifting) reach an acceptable levelNOTE: When repeating the acceleration / deceleration cycle of a road test pattern, bring the vehicle to a complete stop before accelerating again.
- INITIALIZE DISTANCE CONTROL ECU (Dynamic radar cruise control system) NOTE: When replacing the distance control ECU, perform the following procedure so that the ECU can learn the specification.
- Be sure to perform the following procedure after replacing the distance control ECU
- Turn the engine switch on (IG).
- Turn the cruise control main switch on
- With the brake pedal depressed, push the cruise control main switch to RES/ACC 3 times within 3 seconds. Check that the buzzer sounds at this time
- Perform any of the following to cancel beam axis adjustment mode.
- Turn the cruise control main switch off
- Turn the engine switch off
- Accelerate the vehicle to 10 km/h or more.
- Be sure to perform the following procedure after replacing the distance control ECU
- CODE REGISTRATION (Engine immobilizer system) (Description of code registration)
HINT.
- The ID codes are the same as recognition codes for the wireless transmitter and the engine immobilizer function Registering an ID code enables the smart access system with push button start, the wireless door lock control function and the engine immobilizer function to be operated
- Code registration is necessary when the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU), steering lock ECU, or key is replaced with a new one
- Vehicles with the smart access system with push button start do not have a key slot. Therefore, hold the key close to the engine switch to register the key, as shown in the illustration below
- CODE REGISTRATION (Engine immobilizer system) (Part replacement and key registration)
- The following table shows ECU replacement and key registration procedures for cases in which a malfunctioning ECU has been identified through the troubleshooting of the smart access system with push button start
HINT
- The following procedures can be performed
New key ID registration
Additional key ID registration
Key ID erasure
All key ID erasure
ECU code registration
- If the customer has not brought all the registered keys, replacement of the ID code box (immobilizer code ECU) is also required.
- A maximum of 7 keys can be registered.KEY ID CODE REGISTRATION PROCEDURE CHART
Part to be Replaced Condition Procedure Reference Certification ECU (Smart key ECU assembly) Customer has brought all keys 1 Replace certification ECU (smart key ECU assembly) - 2 Reregister all keys (New key ID registration) PROCEDURE "B" Some keys are lost Key ID codes can be registered and erased 1 Erase key codes (Key ID erasure) PROCEDURE "D" 2 Perform additional key registration procedure (Additional key ID registration) PROCEDURE "C" 3 Replace certification ECU (smart key ECU assembly) - 4 Reregister all keys (New key ID registration)
HINT
If some keys are not registered during the above steps, they will be disabled because they cannot be registered laterPROCEDURE "B" Key ID codes cannot be either registered or erased 1 Replace certification ECU (smart key ECU assembly) - 2 Replace ID code box (immobilizer code ECU) - 3 Reregister all keys (New key ID registration)
HINT
If key codes cannot be erased or additional keys cannot be registered due to a malfunction in the certification ECU (smart key ECU assembly), replace the ID code box (immobilizer code ECU) and certification ECU (smart key ECU assembly) If some keys are not registered during the above steps, they will be disabled because they cannot be registered laterPROCEDURE "A" 4 ECU communication ID registration PROCEDURE "G" All keys are lost 1 Replace certification ECU (smart key ECU assembly) - 2 Replace ID code box (immobilizer code ECU) - 3 Reregister all keys (New key ID registration)
HINT
If key codes cannot be erased or additional keys cannot be registered due to a malfunction in the certification ECU (smart key ECU assembly), replace the ID code box (immobilizer code ECU) and certification ECU (smart key ECU assembly) If some keys are not registered during the above steps, they will be disabled because they cannot be registered laterPROCEDURE "A" 4 ECU communication ID registration PROCEDURE "G" ID code box (Immobilizer code ECU) Customer has brought at least 1 key 1 Replace ID code box (immobilizer code ECU) - 2 Register recognition codes in ECUs (ECU code registration) PROCEDURE "F" 3 ECU communication ID registration PROCEDURE "G" All keys are lost 1 Replace ID code box (immobilizer code ECU) - 2 Replace certification ECU (smart key ECU assembly) - 3 Reregister all keys (New key ID registration)
HINT
If some keys are not registered during the above steps, they will be disabled because they cannot be registered laterPROCEDURE "A" 4 ECU communication ID registration PROCEDURE "G" Steering lock ECU Customer has brought at least 1 key 1 Replace steering lock ECU - 2 Register recognition codes in ECUs (ECU code registration) PROCEDURE "F" All keys are lost 1 Replace steering lock ECU - 2 Replace certification ECU (smart key ECU assembly) - 3 Replace ID code box (immobilizer code ECU) - 4 Reregister all keys (New key ID registration)
HINT
If some keys are not registered during the above steps, they will be disabled because they cannot be registered laterPROCEDURE "A" 5 ECU communication ID registration PROCEDURE "G" Power source control ECU No condition required Replace power source control ECU - ECM No condition required 1 Replace ECM - 2 ECU communication ID registration PROCEDURE "G" Key (for replacement) Customer has brought at least 1 key 1 Using remaining key, erase lost key code (Key ID erasure) PROCEDURE "D" 2 Register additional keys as necessary (Additional key ID registration) PROCEDURE "C" All keys are lost 1 Erase all key codes (All key ID erasure) PROCEDURE "E" 2 Register all keys (New key ID registration)
HINT
If the customer brings lost keys at a later date, they can be registered using the additional key ID registration functionPROCEDURE "A" Key (for addition) Customer has brought at least 1 key
HINT
When adding keys (Additional registration)1 Register additional keys as necessary (Additional key ID registration) PROCEDURE "C"
- The following procedures can be performed
- The following table shows ECU replacement and key registration procedures for cases in which a malfunctioning ECU has been identified through the troubleshooting of the smart access system with push button start
- CODE REGISTRATION (Engine immobilizer system) (Key registration)
- PROCEDURE "A"
New key ID registration (when replacing the certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU), or when replacing the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU) and steering lock ECU)
KEY ID CODE REGISTRATION PROCEDURE CHARTProcess Procedure 1 Start of registration - Connect the Techstream to DLC3
- Turn engine switch on (IG)
- Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Registration
HINT
The engine switch cannot be turned on (IG) more than 10 times After connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at 1 5-second intervals or less to continue key registration procedure2 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 (1) - Hold unregistered key close to engine switch (For details, refer to 6"Description of Code Registration")
- Confirm that wireless door lock buzzer sounds once (short beep)
- Place unregistered key on driver's 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 (1) Repeat this process for each key which is to be registered for 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 procedure again from process 1 Make sure that only 1 key is in the cabin during the registration procedure If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration - PROCEDURE "B"
New key ID registration (when replacing the certification ECU (smart key ECU assembly))
ADDITIONAL KEY ID REGISTRATION PROCEDURE CHARTProcess Procedure 1 Start of registration - Connect the Techstream to DLC3
- Turn engine switch on (IG)
- Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Registration
HINT
The engine switch cannot be turned on (IG) more than 10 times After connecting the Techstream, turn the Techstream on while turning the driver side door courtesy light switch on and off repeatedly at 1 5-second intervals or less to continue key registration procedure2 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) - Hold unregistered key close to engine switch (For details, refer to 6"Description of Code Registration")
- 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) - Hold unregistered key close to engine switch (For details, refer to 6"Description of Code Registration")
- Confirm that wireless door lock buzzer sounds once (short beep)
- Place unregistered key on driver's 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 new key ID code registration (1) Repeat this process for each key registered for 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 procedures again from process 1 If the key confirmation procedure for a key is performed, 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 for the vehicle Finish the procedure for each key within 30 seconds If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1 Make sure that only 1 key is in the cabin during the registration procedures If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration - PROCEDURE "C"
Additional key ID registration
KEY ID ERASURE PROCEDURE CHARTProcess Procedure 1 Start of registration - Connect the Techstream to DLC3
- Turn engine switch on (IG)
- Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Registration
2 Confirmation of registered key(1) - Perform operation according to prompts on the Techstream screen
HINT
Mode is automatically selected by the Techstream (new registration mode or add mode)
- Hold unregistered key close to engine switch (For details, refer to 6"Description of Code Registration")
- 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) - Hold unregistered key close to engine switch (For details, refer to 6"Description of Code Registration")
- Confirm that wireless door lock buzzer sounds once (short beep)
- Place unregistered key on driver's 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 additional key ID code registration (1) Perform this process for one of the keys registered for the vehicle Finish the procedure within 30 seconds If the procedure has not been finished within the specified time, perform the registration procedures again from process 1 (2) Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1 Make sure that only 1 key is in the cabin during the registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration. - PROCEDURE "D"
Key ID erasure
HINT
Erase all registered key codes except one.
KEY ID ERASURE PROCEDURE CHARTProcess Procedure 1 Start of erasure - Connect the Techstream to DLC3
- Turn engine switch on (IG)
- Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Erasure
2 Confirmation of registered key(1)
HINT
Select the key that will not be erased- Perform operation according to prompts on the Techstream screen
- Hold registered key close to engine switch (For details, refer to 6"Description of Code Registration")
- 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 Erasure of ID code Perform operation according to prompts on the Techstream screen 5 End of erasure Finish key ID code erasure (1) Perform this process for one of the keys registered for the vehicle Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1 - PROCEDURE "E"
All key ID erasure
HINT
All the key codes registered in the vehicle are erased
ECU CODE REGISTRATION PROCEDURE CHARTProcess Procedure 1 Start of erasure - Connect the Techstream to DLC3
- Turn engine switch on (IG)
- Turn the Techstream on while turning driver side door courtesy light switch on and off repeatedly at 1 5-second intervals or less
- Enter the following menus Body Electrical / Smart Key / Utility / Smart Code Reset
2 Confirmation of ECU code Perform operation according to prompts on the Techstream screen 3 Erasure of ID code Perform operation according to prompts on the Techstream screen 4 End of erasure Finish key ID code erasure - PROCEDURE "F"
ECU code registration
ADJUSTMENT PROCEDURE AND ADJUSTMENT ANGLEProcess Procedure 1 Start of registration - Connect the Techstream to DLC3
- Turn engine switch on (IG)
- Enter the following menus Body Electrical / Smart Key / Utility / ECU Communication ID Registration
2 Confirmation of registered key(1) - Hold registered key close to engine switch (For details, refer to 6"Description of Code Registration")
- Confirm that wireless door lock buzzer sounds once (short beep)
3 Registration of ECU code Perform operation according to prompts on the Techstream screen 4 End of registration Finish ECU code registration (1) Perform this process for one of the keys registered for the vehicle Finish the procedure within 30 seconds If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1 - PROCEDURE "G"
ECU communication ID registration
NOTE:- The ECU communication ID should be registered when the ID code box (immobilizer code ECU) and/or the ECM is replaced in order to match these ECU communication IDs.
- The engine cannot be started unless the ECU communication IDs match.
- After the registration, pressing the engine switch may not start the engine on the first try. If so, press the engine switch again.
- Clear DTC B2799 (code for ECM immobilizer communication error) by either of the following:
- Use the Techstream.
- Disconnect the battery for 30 seconds.
- Using SST, connect terminals TC and CG of the DLC3.
SST 09843-18040
- Turn the engine switch on (IG) and leave it as is for 30 minutes
HINT
Do not start the engine.
- Turn the engine switch off and disconnect terminals TC and CG.
- Check that the engine starts and stays on for more than 3 seconds
- PROCEDURE "A"
- VEHICLE IDENTIFICATION NUMBER (VIN) REGISTRATION
- DESCRIPTION
HINT
This registration section consists of two parts Read VIN and Write VIN
- Read VIN This process allows the VIN stored in the ECM to be read in order to confirm that the two VINs, the one provided with the vehicle and stored in the vehicle ECM, are the same
- Write VIN" 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.
- READ VIN
- Confirm the vehicle VIN
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)
- Turn the Techstream ON
- Enter the following menus Powertrain / Engine / Utility/VIN/VIN Read
- WRITE VIN
- Confirm the vehicle VIN
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)
- Turn the Techstream ON
- Enter the following menus Powertrain / Engine / Utility / VIN / VIN Write
- DESCRIPTION
- ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY (Dynamic radar cruise control system) CAUTION: Exposure to radio frequency emissions is hazardous to your health. It is hazardous to your health to be within 20 cm (7.87 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.
- Before adjusting the radar beam axis, prepare the vehicle as follows.
- Check the tire pressure and adjust it if necessary
- Remove all excess weight from the vehicle (luggage, heavy objects, etc.)
- Check and adjust the vertical direction of the radar sensor.
- Remove dust, oil, and foreign matter from the radar sensor's level rack.
- Set a level on the radar sensor's level rack.
- Check that the air bubble is within the red frame on the level
OK: The air bubble is within the red frame on the level.
If the bubble is not within the red frame, use a screwdriver to adjust bolt A until the air bubble is within the red frame.
HINT
- The adjustable range within the red frame on the level is +/- 0.2°.
- The target angle is +0 2° (upward angle of 0 2°)
Result
ADJUSTMENT PROCEDURE AND ADJUSTMENT ANGLEAdjustment 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°
- Adjust the reflector height.
- Adjust the reflector so that the center of the SST reflector is the same height as the millimeter wave radar sensor
SST 09870-60000 (09870-60010, 09870-60040)
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
- Adjust the reflector so that the center of the SST reflector is the same height as the millimeter wave radar sensor
- Place the reflector.
- Hang the string with a weight from the center of the vehicle rear emblem Mark the vehicle rear center point on the ground Repeat the same procedure for the front of the vehicle.
- Set one end of the 10 m (32.81 ft) string on the vehicle rear center point Run the string over the vehicle front center point to a position 5 m (16.41 ft) beyond the vehicle front center point, as shown in the illustration Mark the 5 m (16 41 ft) position
- Using the tape measure, measure 12 mm (0 47 in.) to the left of the 5 m (16 41 ft.) position Place the reflector at that position.Fig 10: Identifying Distance Between Reflector Placement Point And Millimeter Wave Radar Sensor Position
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: Perform the operation as precisely as possible.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Check the radar beam axis
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)
- Turn the Techstream switch on, and turn the cruise control main switch on
- Enter "Connect to Vehicle"
- Enter each item on the display screen and proceed to the next screen
- From "System Selection Menu", enter "Radar Cruise"
- Enter "Utility".
- Enter "Beam Axis Adjustment" and proceed to the next screen
- Follow the Techstream display, and continue with the adjustment.
- Confirm that the distance value is approximately 5 m (16 41 ft)
- Check the following items on the laser cruise divergence data screen
- Check that a value between 0 0 and 6 3 is displayed in A
- Check that a value between 0.0 and 20.7 is displayed in B
- Check that Left Side or Right Side is displayed in C.
- Check that an angle value between 0 0 and 6 3 is displayed in 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 10 for NOTICE below it of this adjustment procedure)
- Check and adjust the horizontal direction of the radar sensor.
- Check that the divergence of the radar beam axis is 0°
Standard: 0° (Both right and left)
If the divergence is not as specified, use a screwdriver to adjust bolt B until the divergence of the radar beam axis is 0°.
- 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 screwdriverADJUSTMENT PROCEDURE AND ADJUSTMENT ANGLE
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° to the left 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
- Reset the radar sensor's driving learning values Prepare a piece of metal that can block radio waves, such as aluminum foil. Cover the radar sensor's left half with the metal for 10 secondsNOTE: Be sure to keep the reflector in place and make sure that there is nothing between the sensor's right half and the reflector.
HINT
When the reset is completed, the buzzer sounds for 10 seconds.
- Disconnect the Techstream from the DLC3
- Check that the divergence of the radar beam axis is 0°
- Recheck and readjust the vertical direction of the radar sensor
- Set a level on the radar sensor's level rack.
- Check that the level's air bubble is within the red frame
OK: Level's air bubble is within the red frame. If the bubble is not within the red frame, use a screwdriver 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°)DATA LIST
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 °
- SET TRANSMISSION COMPENSATION CODE INTO TCM (step 1) (Automatic transmission system) NOTE: Transmission compensation codes are unique, 60-digit alphanumeric values printed on a QR label on the transmission. If an incorrect transmission compensation code is input into the TCM, shift shock may occur.
- Record the transmission compensation code specified on the QR label.
HINT
The transmission compensation code is a 60-digit alphanumeric value imprinted on the QR label
- Move the shift lever to N or P
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)NOTE: Do not start the engine.
- Turn the Techstream on
- Enter the following menus Powertrain / ECT / Utility / A/T Code Registration
- Enter "Set Compensation Code"
- Register the compensation code
- Manually input the transmission compensation code
- Check that the compensation code displayed on the screen is correct by comparing it with the 60-digit alphanumeric value on the QR label
NOTE: If an incorrect transmission compensation code is input into the TCM, shift shock will occur.
HINT
Input letters and numbers using the Techstream
- Set the compensation code to the TCM.
- Record the transmission compensation code specified on the QR label.
- TRANSFER TRANSMISSION COMPENSATION CODE (step 2) (Automatic transmission system) NOTE: Transmission compensation codes are unique, 60-digit alphanumeric values printed on a QR label on the transmission. If an incorrect transmission compensation code is input into the TCM, shift shock may occur.
HINT
The following operation is available for use when a TCM that is being replaced can still transmit its registered transmission compensation code to the Techstream
- Read the transmission compensation code
- Move the shift lever to N or P.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).NOTE: Do not start the engine.
- Turn the Techstream on
- Enter the following menus: Powertrain / ECT / Utility / A/T Code Registration
- Enter "Read Compensation Code"NOTE: Do not use the code specified on the transmission QR label even if the transmission compensation code cannot be read using the Techstream. The code printed on an in-service transmission may not match its current characteristics. Replace the TCM with a new one and perform a road test to allow the TCM to learn the transmission characteristics.
- Turn the engine switch off
- Replace the TCM
- Set the transmission compensation code.
- Turn the engine switch on (IG)NOTE: Do not start the engine.
- Turn the Techstream on
- Enter the following menus Powertrain / ECT / Utility / A/T Code Registration
- Enter "Set Compensation Code"
- Press "Open"
- Enter "Open"
- Set the compensation code to the TCM.
- Turn the engine switch on (IG)
- Read the transmission compensation code
- CODE REGISTRATION (Tire pressure warning system) (Description of code registration)
- It is necessary to register the transmitter ID in the tire pressure warning ECU and receiver when replacing a tire pressure warning valve and transmitter and/or the tire pressure warning ECU and receiver
- CODE REGISTRATION (Tire pressure warning system) (Preparations before registration)
- In case of tire pressure warning ECU and receiver replacement
- Read the registered transmitter IDs that are stored in the old ECU and receiver using the Techstream and note them down Enter the following menus Chassis / Tire Pressure Monitor / Data List
Tire Pressure Monitor
DATA LISTTester Display Measurement Item/Range Normal Condition Diagnostic Note Registered ID1 Code Registered ID1 code/ min 0
max FFFFFFF*The ID No registered in the transmitter ID1 is displayed * Display only when the ID No is not registered Registered ID2 Code Registered ID2 code/ min 0
max FFFFFFF*The ID No registered in the transmitter ID2 is displayed * Display only when the ID No is not registered Registered ID3 Code Registered ID3 code/ min 0
max FFFFFFF*The ID No registered in the transmitter ID3 is displayed * Display only when the ID No is not registered Registered ID4 Code Registered ID4 code/ min 0
max FFFFFFF*The ID No registered in the transmitter ID4 is displayed * Display only when the ID No is not registered - If reading stored transmitter IDs are 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 (See TIRE PRESSURE WARNING SYSTEM )
- Read the registered transmitter IDs that are stored in the old ECU and receiver using the Techstream and note them down Enter the following menus Chassis / Tire Pressure Monitor / Data List
- When replacing a tire pressure warning valve and transmitter.
- When replacing a tire pressure warning valve and transmitter, each ID numbers of tire pressure warning valve and transmitters must be registered. Even if only one tire pressure warning valve and transmitter is replaced, the ID numbers of the all the tire pressure warning valve and transmitters must be registered again Record all existing ID numbers before beginning the process to enter new ID numbers
- Take a note of the 7-digit number (transmitter ID) written on the tire pressure warning valve and transmitter
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 onto the wheel. Therefore, take a note of the transmitter ID before installing the tire onto the wheel.
- In case of tire pressure warning ECU and receiver replacement
- CODE REGISTRATION (Tire pressure warning system) (Registration of transmitter ID)
- Set the tire pressure of all the wheels to the specified value (See TIRE PRESSURE WARNING SYSTEM )
- Turn the engine switch off.
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)
- Turn the Techstream on.
- Perform the transmitter ID registration Enter the following menus Chassis / Tire Pressure Monitor / Utility/ ID Registration.
- Select the registration mode "MAIN Set"
HINT.
- Check that the tire pressure warning select switch is in "MAIN".
- When registering a 2nd set, select the registration mode "2nd Set" after changing the tire pressure warning select switch to "2nd"
- Input the transmitter IDs (ID1 to ID4) using the Techstream and transmit them to the tire pressure warning ECU and receiver
- 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 and receiver 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
- CODE REGISTRATION (Tire pressure warning system) (Confirmation of transmitter ID registration)
- Turn the engine switch off
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)
- Turn the Techstream on
- 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
DATA LISTTester 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 0 kgf/cm2 , -14 psi) max Absolute pressure/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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 0 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 0 kgf/cm2 , -14 psi) max Absolute pressure/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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 0 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 0 kgf/cm2 , -14 psi) max Absolute pressure/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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 0 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 0 kgf/cm2 , -14 psi) max Absolute pressure/ 638 kPa (6 4 kgf/cm2 , 93 psi), Relative pressure/ 538 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 0 kgf/cm2 , -14 psi) is displayed for relative pressure, data has not been received (1) (1) 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 C2124/24 or C2131/31 to C2134/34 (See DTC C2121/21 NO SIGNAL FROM TRANSMITTER ID1 IN MAIN MODE; DTC C2122/22 NO SIGNAL FROM TRANSMITTER ID2 IN MAIN MODE; DTC C2123/23 NO SIGNAL FROM TRANSMITTER ID3 IN MAIN MODE; DTC C2124/24 NO SIGNAL FROM TRANSMITTER ID4 IN MAIN MODE; DTC C2131/31 NO SIGNAL FROM TRANSMITTER ID1 IN 2ND MODE; DTC C2132/32 NO SIGNAL FROM TRANSMITTER ID2 IN 2ND MODE; DTC C2133/33 NO SIGNAL FROM TRANSMITTER ID3 IN 2ND MODE; DTC C2134/34 NO SIGNAL FROM TRANSMITTER ID4 IN 2ND MODE; DTC C2181/81 TRANSMITTER ID1 NOT RECEIVED (TEST MODE DTC); DTC C2182/82 TRANSMITTER ID2 NOT RECEIVED (TEST MODE DTC); DTC C2183/83 TRANSMITTER ID3 NOT RECEIVED (TEST MODE DTC); DTC C2184/84 TRANSMITTER ID4 NOT RECEIVED (TEST MODE DTC) ). NOTE:- If the IDs have not been registered, DTC C2171/71 or C2172/72 will be stored in the tire pressure warning ECU and receiver 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.
- After all IDs are registered, DTC C2126/26 (Transmitter ID not Received in Main Mode) or DTC C2127/27 (Transmitter ID not Received in 2nd Mode) is stored in the tire pressure warning ECU and receiver and the tire pressure warning light blinks for 1 minute and then comes on. When the tire pressure warning ECU and receiver successfully receives radio waves from all the transmitters whose IDs are stored in the ECU and receiver, DTC C2126/26 or C2127/27 is deleted and the tire pressure warning light goes off.
- PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION AND STORE SYSTEM INFORMATION (Vehicle Stability Control system) NOTE:
- Stored system information can not be overwritten unless it is cleared. Clear the stored information and then store new system information.
- While obtaining the zero points, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. (Do not start the engine.)
- Be sure to perform this procedure on a level surface (with an inclination of less than 1 degree).
- Clear the zero point calibration data and system informationNOTE: Performing the following procedure will clear the zero points of the yaw rate and acceleration sensor and system information simultaneously.
- Turn the engine switch off
- Check that the steering wheel is centered
- Check that the shift lever is in P.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on
- Select the skid control ECU to clear the zero point calibration data using the Techstream Enter the following menus Chassis / ABS/VSC/ TRAC / Utility / Reset Memory
- Turn the engine switch offNOTE:
- If the vehicle is driven after the zero point of the yaw rate and acceleration sensor and system information are cleared, DTCs will be stored.
- If the engine switch is turned on (IG) for more than 15 seconds with the shift lever in P after the zero points of the yaw rate and acceleration sensor have been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under these conditions, the skid control ECU will store the zero point calibration for the acceleration sensor as not being completed. The skid control ECU will then also indicate this as a malfunction of the VSC system using the indicator lights and the multi-information display.
- Perform the yaw rate and acceleration sensor zero point calibration and store system informationNOTE: Performing the following procedure will perform the yaw rate and acceleration sensor zero point calibration and store system information simultaneously.
- Turn the engine switch off.
- Check that the steering wheel is centered
- Check that the shift lever is in PNOTE:
- DTCs C1210 (Zero Point Calibration of Yaw Rate Sensor Undone) and C1336 (Zero Point Calibration of Acceleration Sensor Undone) will be recorded if the shift lever is not in P.
- If a DTC is stored that indicates zero point calibration is incomplete, repeat the procedure starting at the step for clearing the zero point calibration data and system information.
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)
- Turn the Techstream on
- Switch the skid control ECU to Test Mode using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Test Mode.
- After Test Mode has been entered, keep the vehicle stationary on a level surface for 2 seconds or more
- Check that the master caution indicator light comes on for several seconds and then blinks in Test Mode and the VSC test mode message is displayed on the multi-information display.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- If the master caution indicator light does not blink and/or the VSC test mode message is not displayed 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 Test Mode.
- Calibration cannot be performed again until the stored data is cleared.
- Turn the engine switch off and disconnect the Techstream
- CLEARING ZERO POINT CALIBRATION DATA SYSTEM INFORMATION (Vehicle Stability Control system)
- Clear the zero point calibration data and system informationNOTE: Performing the following procedure will clear the zero points of the yaw rate and acceleration sensor and system information simultaneously.
- Turn the engine switch off
- Check that the steering wheel is centered
- Check that the shift lever is in P
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)
- Turn the Techstream on
- Select the skid control ECU to clear the zero point calibration data using the Techstream Enter the following menus Chassis / ABS/VSC/ TRAC / Utility / Reset Memory.
- Turn the engine switch offNOTE:
- If the vehicle is driven after the zero point of the yaw rate and acceleration sensor and system information are cleared, DTCs will be stored.
- If the engine switch is turned on (IG) for more than 15 seconds with the shift lever in P after the zero points of the yaw rate and acceleration sensor have been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under these conditions, the skid control ECU will store the zero point calibration for the acceleration sensor as not being completed. The skid control ECU will then also indicate this as a malfunction of the VSC system using the indicator lights and the multi-information display.
- Clear the zero point calibration data and system information
- ROTATION ANGLE SENSOR VALUE INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION (Power steering system) NOTE: Clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point if any of the following has occurred:
- The power steering ECU has been replaced.
- The power steering gear assembly has been replaced.
- Steering effort differs between left and right.
- Inspection before calibration
- Turn the engine switch off
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG)
- Turn the Techstream on.
- Check the IG power supply voltage on the Techstream Enter the following menus Chassis / EMPS / Data List
EMPS
ADJUSTMENT ITEMS AND SEAT POSITION REFERENCETester Display Measurement Item/Range Normal Condition Diagnostic Note IG power Supply ECU power source voltage/ Min 0 V
Max 20 1531 V11 to 14 V Engine switch on (IG) Standard voltage: 11 to 14 V
NOTE: If the IG power supply voltage is less than 11 V, calibration cannot be performed. In this case, charge or replace the battery, and then perform calibration.
- Rotation angle sensor calibration value clear, rotation angle sensor value initialization, and torque sensor zero point calibrationNOTE:
- 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 value cannot be initialized. Clear the DTC before starting initialization.
- Turn the engine switch off
- Connect the Techstream to the DLC3
- Turn the engine switch on (IG).
- Turn the Techstream on
- Follow the procedures on the Techstream to clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point. Enter the following menus- Chassis / EMPS / Utility / Torque Sensor Adjustment.NOTE:
- When initializing the rotation angle sensor value, observe the following to stabilize sensor voltage:
After turning the engine 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.
- When initializing the rotation angle sensor value, observe the following to stabilize sensor voltage:
- ZERO POINT CALIBRATION (Occupant classification system) 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
- Zero point calibration procedures
- Check that all of the following conditions are met
- The vehicle is parked on a flat surface.
- No objects are placed on the front passenger seat.
- The front passenger seat belt buckle switch is OFF.
- Adjust the seat position according to the table below.ITEMS PROCEDURE REFERENCE
Adjustment Item Position Slide Direction Rearmost position Reclining Angle Upright position Headrest Height Lowest position Lifter Height Lowest position - Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Enter the following menus: Body Electrical / Occupant Detection / Utility / Zero Point Calibration
- Perform the zero point calibration by following the prompts on the Techstream screen
HINT.
- Refer to the Techstream operator's service information 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 is stored in the Techstream, the display screen returns to CONDITION SELECT ECU. Occupant DetectACTIVE TEST DETAIL
Item Procedure DTC Perform DTC check and repair Write error Replace front seat cushion assembly (with occupant classification ECU and occupant classification sensor) Temperature Check value of Thermistor Temperature Output in ECU Data List Pressure Check value of Filtered Pressure Sensor Output in ECU Data List Crash counter -
- Check that all of the following conditions are met
- SENSITIVITY CHECK (Occupant classification system)
- Sensitivity check procedures
- Turn the engine switch off
- Place a 20 kg (44 0 lb) weight on the front passenger seat.
- Turn the engine switch on (IG), and wait for at least 6 seconds
- Check that the passenger airbag ON/OFF indicator indicates OFF
OK: The passenger airbag ON/OFF indicator indicates OFF.
- Add a 30 kg (66 1 lb) weight 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.
- Place the weight in the area shown in the illustration.
- Check that the passenger airbag ON/OFF indicator indicates ON
OK: The passenger airbag ON/OFF indicator indicates ON.
- Sensitivity check procedures
- INITIALIZATION (Pre-collision system) (Precautions for Seat Belt Control ECU Replacement)
The seat belt control ECU operates the pre-collision system based on the stored data that informs that the vehicle is LHD or RHD model LHD or RHD refers to the seating position of the driver, not which side of the road the vehicle is driven on
Therefore, when replacing the seat belt control ECU, it is necessary to store the information about whether the vehicle is a LHD or RHD model. This can be performed by following these steps.
- Turn the engine switch on (IG)
- The PCS warning light comes on for at least 3 seconds after turning the engine switch on (IG) Make sure that the warning light does not remain on
- At this time, the seat belt control ECU receives vehicle configuration (LHD/RHD) information from the gateway ECU and stores it in memory
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG)
- Turn the Techstream on
- Enter the following menus Body Electrical / Pre-Collision / Active Test
- Perform Active Test according to the display on the Techstream
Pre-Collision
SWITCH CONDITION AND SLIDING ROOF POSITION REFERENCETester Display Test Part Control Range Diagnostic Note Driver Seat Belt Motor Driver's seat belt motor ON Seat belt motor operate
OFF Seat belt motor does not operateSeat belt (driver side) is fastened Passenger Seat Belt Motor Passenger's seat belt motor ON Seat belt motor operate
OFF Seat belt motor does not operateSeat belt (passenger side) is fastened
- RESET (INITIALIZE) POWER WINDOW REGULATOR MOTOR (Power window control system) NOTE:
- Resetting the power window regulator motor (initializing the pulse sensor) is necessary when the cable is disconnected from the battery terminal; when a multiplex network master switch assembly, multiplex network switch assembly, wire harness, power window regulator motor is replaced or removed/installed; or when the fuses are replaced. The AUTO operation function, jam protection function and remote operation function via the multiplex network master switch assembly do not operate without resetting.
- Be sure to reset the power window regulator motors using the power window switch on each door because the motors cannot be reset by remote operation using the multiplex network master switch assembly.
- In order to prevent a large amount of current from flowing in the wires, do not simultaneously reset 2 or more power window regulator motors.
- If the power window switch is continuously operated for a long time, the power window regulator motor will stop so that no additional load will be applied to the motor. Continuing to operate the switch even after the motor has stopped will cause the switch to blink while restricting the AUTO UP/DOWN function and the remote UP/DOWN function. If this happens, reset the motor again after several minutes have passed.
- When disconnecting the cable from the negative (-) battery terminal, initialize the following system after the cable is reconnected.
- Turn the engine switch on (IG).
- Halfway open the power window by pressing the power window switch.
- Fully pull up the switch until the power window is fully closed and continue to hold the switch for approx. 1 second after the power window is fully closed
- Check that the AUTO UP/DOWN function operates normally
If the AUTO UP/DOWN function operates normally, reset operations have been completed at this time. If not normal, follow the steps below.
- Disconnect the negative battery terminal for 10 seconds
- Connect the cable from the negative (-) battery terminal
- Turn the engine switch on (IG)
- Halfway open the power window by pressing the power window switch.
- If the AUTO UP/DOWN function operates normally, reset operations have been completed at this time
If not normal, follow the steps below.
- Turn the engine switch on (IG).
- Halfway open the power window by pressing the power window switch
- Fully pull up the switch until the power window is fully closed and continue to hold the switch for approx 12 seconds after the power window is fully closed.
- Check that the AUTO UP/DOWN function operates normally.
- INITIALIZING SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (Sliding roof system) NOTE: After the sliding roof drive gear is replaced, the pulse sensor of the sliding roof drive gear needs to be initialized. If a initializing is not executed, the sliding roof cannot be tilted or controlled by turning the switch to position [2] to [8].
- Turn the engine switch on (IG).
- Press and hold the sliding roof push switch until the following operations are completed
- The sliding roof moves to the tilt fully open position and remains for 1 second.
- Tilt down operation starts After the roof is fully closed, it starts sliding to open
- After the roof slides to the fully open operation, the operation stops and then the roof closes to the fully closed positionRESISTANCE SPECIFICATION
Switch Condition Sliding Roof Position [1] Over stroke position [2] Slide fully open position [A] [3] Slide stop position [B] (Comfort stop position) [4] Slide stop position [C] [5] Slide stop position [D] [6] Slide stop position [E] [7] Slide stop position [F] [8] Slide stop position [G] [9] Fully closed position [H] [10] Tilt fully open position [11] Fully closed → comfort stop position
Open position → fully closed
- Check that the operation works normally with auto operationNOTE:
- If the battery voltage changes during initialization, the sliding roof ECU may not be initialized normally.
- Do not apply excessive loads to the vehicle during initialization by performing operations such as locking the doors or cranking the engine.
- Do not turn the engine switch off during initialization.
- Do not move the vehicle during initialization.
- Do not apply strong impacts to the vehicle during initialization by performing operations such as closing the doors forcefully.
NOTE:- If voltage changes during initialization, the sliding roof ECU may not be initialized normally.
- Do not apply excessive loads to the vehicle during initialization by performing operations such as locking the doors or cranking the engine.
- Do not turn the engine switch off during initialization.
- Do not move the vehicle during initialization.
- Do not apply strong impacts to the vehicle during initialization by performing operations such as closing the doors forcefully.