Part 2
INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION - Continued
Tire Pressure Monitor
(2) 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 Service Precautions.
(b) When replacing a tire pressure warning valve and transmitter:
(1) 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.
(2) Take a note of the 7-digit number (transmitter ID) written on the tire pressure warning valve and transmitter.
NOTICE: 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.
15. CODE REGISTRATION (Tire pressure warning system) (Registration of transmitter ID)
(a) Set the tire pressure of all the wheels to the specified value Service Precautions.
(b) Turn the engine switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the engine switch on (IG).
(e) Turn the Techstream on.
(f) Perform the transmitter ID registration. Enter the following menus: Chassis / Tire Pressure Monitor / Utility / ID Registration.
(g) 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".
(h) Input the transmitter IDs (ID1 to ID4) using the Techstream and transmit them to the tire pressure warning ECU and receiver.
(i) 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.
16. CODE REGISTRATION (Tire pressure warning system) (Confirmation of transmitter ID registration)
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) 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
NOTICE:
- *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 C2121.
- 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.
17. PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION AND STORE SYSTEM INFORMATION (Vehicle Stability Control system)
NOTICE:
- 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).
(a) Clear the zero point calibration data and system information.
NOTICE: Performing the following procedure will clear the zero points of the yaw rate and acceleration sensor and system information simultaneously.
(1) Turn the engine switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P.
(4) Connect the Techstream to the DLC3.
(5) Turn the engine switch on (IG).
(6) Turn the Techstream on.
(7) 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.
(8) Turn the engine switch off.
NOTICE:
- 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.
(b) Perform the yaw rate and acceleration sensor zero point calibration and store system information.
NOTICE: Performing the following procedure will perform the yaw rate and acceleration sensor zero point calibration and store system information simultaneously.
(1) Turn the engine switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P.
NOTICE:
- 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.
(4) Connect the Techstream to the DLC3.
(5) Turn the engine switch on (IG).
(6) Turn the Techstream on.
(7) Switch the skid control ECU to Test Mode using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Test Mode.
(8) After Test Mode has been entered, keep the vehicle stationary on a level surface for 2 seconds or more.
(9) 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.
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.
(10) Turn the engine switch off and disconnect the Techstream.
18. CLEARING ZERO POINT CALIBRATION DATA SYSTEM INFORMATION (Vehicle Stability Control system)
(a) Clear the zero point calibration data and system information.
NOTICE: Performing the following procedure will clear the zero points of the yaw rate and acceleration sensor and system information simultaneously.
(1) Turn the engine switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P.
(4) Connect the Techstream to the DLC3.
(5) Turn the engine switch on (IG).
(6) Turn the Techstream on.
(7) 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.
(8) Turn the engine switch off.
NOTICE:
- 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.
19. ROTATION ANGLE SENSOR VALUE INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION (Power steering system)
NOTICE: 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.
(a) Inspection before calibration
(1) Turn the engine switch off.
(2) Connect the Techstream to the DLC3.
(3) Turn the engine switch on (IG).
(4) Turn the Techstream on.
(5) Check the IG power supply voltage on the Techstream. Enter the following menus: Chassis / EMPS / Data List.
EMPS
Standard voltage:
11 to 14 V
NOTICE: 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.
(b) Rotation angle sensor calibration value clear, rotation angle sensor value initialization, and torque sensor zero point calibration.
NOTICE:
- 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.
(1) Turn the engine switch off.
(2) Connect the Techstream to the DLC3.
(3) Turn the engine switch on (IG).
(4) Turn the Techstream on.
(5) 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.
NOTICE:
- 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.
20. ZERO POINT CALIBRATION (Occupant classification system)
NOTICE: 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.
(a) Zero point calibration procedures
(1) 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.
(2) Adjust the seat position according to the table below.
(3) Connect the Techstream to the DLC3.
(4) Turn the engine switch on (IG).
(5) Enter the following menus: Body Electrical / Occupant Detection / Utility / Zero Point Calibration.
(6) 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.
- If After Exchange is selected before the previous ECU data is stored in the Techstream, the display screen returns to CONDITION SELECT ECU: Occupant Detect.
21. SENSITIVITY CHECK (Occupant classification system)
(a) Sensitivity check procedures
(1) Turn the engine switch off.
(2) Place a 20 kg (44.0 lb) weight on the front passenger seat.
NOTICE:
- Do not allow the weight to come into contact with the seatback when placing it on the seat cushion.
- Place the weight in the area shown in the illustration.
(3) Turn the engine switch on (IG), and wait for at least 6 seconds.
(4) Check that the passenger airbag ON/OFF indicator indicates OFF.
OK:
The passenger airbag ON/OFF indicator indicates OFF.
(5) Add a 30 kg (66.1 lb) weight to the front passenger seat (total 50 kg (110.2 lb)).
NOTICE:
- 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.
(6) Check that the passenger airbag ON/OFF indicator indicates ON.
OK:
The passenger airbag ON/OFF indicator indicates ON.
22. 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:
(a) Turn the engine switch on (IG).
(b) 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.
(c) At this time, the seat belt control ECU receives vehicle configuration (LHD/RHD) information from the gateway ECU and stores it in memory.
(1) Connect the Techstream to the DLC3.
(2) Turn the engine switch on (IG).
(3) Turn the Techstream on.
(4) Enter the following menus: Body Electrical / Pre-Collision / Active Test.
(5) Perform Active Test according to the display on the Techstream.
Pre-Collision
23. RESET (INITIALIZE) POWER WINDOW REGULATOR MOTOR (Power window control system)
NOTICE:
- 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.
(a) Turn the engine switch on (IG).
(b) Halfway open the power window by pressing the power window switch.
(c) 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.
(d) 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.
(1) Disconnect the negative battery terminal for 10 seconds.
(2) Connect the cable from the negative (-) battery terminal.
(3) Turn the engine switch on (IG).
(4) Halfway open the power window by pressing the power window switch.
(5) If the AUTO UP/DOWN function operates normally, reset operations have been completed at this time.
If not normal, follow the steps below.
(6) Turn the engine switch on (IG).
(7) Halfway open the power window by pressing the power window switch.
(8) 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.
(9) Check that the AUTO UP/DOWN function operates normally.
24. INITIALIZING SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (Sliding roof system)
NOTICE: 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].
(a) Turn the engine switch on (IG).
(b) Press and hold the sliding roof push switch until the following operations are completed:
(1) The sliding roof moves to the tilt fully open position and remains for 1 second.
(2) Tilt down operation starts. After the roof is fully closed, it starts sliding to open.
(3) After the roof slides to the fully open operation, the operation stops and then the roof closes to the fully closed position.
(c) Check that the operation works normally with auto operation.
NOTICE:
- 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.
NOTICE:
- 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.