Part 2
INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION
8. INITIALIZATION PROCEDURE (Tire Pressure Warning System)
(a) Turn the power switch on (IG).
(b) Press and hold the tire pressure warning reset switch for 3 seconds or more so that the tire pressure warning light blinks 3 times.
(c) Turn the power switch off.
(d) Connect the Techstream to the DLC3.
(e) Turn the power switch on (IG) and the Techstream on.
(f) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(g) Check that the initialization has been completed.
(h) Confirm that the tire pressure data of all tires is displayed on the Techstream screen.
NOTICE:
* The initialization is normally completed within 2 to 3 minutes.
* If the initialization has not been completed successfully, DTC C2177/77 is set after a vehicle speed of 8 km/h (5 mph) or more continues for 20 minutes or more.
* While in test mode, the system will not change to initialization mode even if the tire pressure warning reset switch is pushed.
* The initialization can be terminated by connecting terminals 13 (TC) and 4 (CG) of the DLC3.
Tire Pressure Monitor
HINT
* The initialization is complete when the Data List "ID Tire Inflation Pressure" display shows the correct pressures.
* *: It may take about 2 or 3 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2125/25.
9. DESCRIPTION OF CODE REGISTRATION (Tire Pressure Warning System)
It is necessary to register the transmitter ID in the tire pressure warning ECU when replacing the tire pressure warning valve and transmitter and/or tire pressure warning ECU.
Prepare all transmitter ID data before starting registration.
(a) Before registration
(1) In case of tire pressure warning ECU replacement:
* Read the registered transmitter IDs that are stored in the old ECU using the Techstream and note them down.
* If reading the stored transmitter IDs is impossible due to malfunctions of components such as the tire pressure warning antenna and receiver, remove the tires from the wheels and check the IDs located on the tire pressure warning valve and transmitters.
(2) In case of tire pressure warning valve and transmitter replacement:
* Take a note of the 7 digit number (transmitter ID) written on the tire pressure warning valve and transmitter.
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 pressure warning valve and transmitter the tire and wheel. Therefore, take a note of the transmitter ID before installing the tire pressure warning valve and transmitter.
10. REGISTER TRANSMITTER ID (Tire Pressure Warning System)
(a) Set the tire pressures of all wheels to the specified values.
(b) Turn the power switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the power switch on (IG) and the Techstream on.
(e) Enter the following menus: Chassis / Tire Pressure Monitor / Utility / ID Registration.
(f) Perform the procedures displayed on the Techstream.
(g) Confirmation of transmitter ID registration:
(1) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(2) Read the "ID Tire Inflation Pressure" values.
(3) Confirm that the tire pressure data of all tires (including the spare tire) is displayed on the Techstream screen.
NOTICE:
* It may take up to about 2 or 3 minutes to update the tire pressure data. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2125/25.
* If the IDs have not been registered, DTC C2171/71 is set in the tire pressure warning ECU after 3 minutes or more.
* If normal pressure values are displayed, the IDs have been registered correctly.
* If the tire pressure values are not displayed after a few minutes, the IDs may be incorrect or the system may have a malfunction.
* After all IDs are registered, DTC C2126/26 is set in the tire pressure warning ECU and the tire pressure warning light blinks for 1 minute and then comes on. When the tire pressure warning ECU successfully receives radio waves from all the transmitters whose IDs are stored in the ECU, DTC C2126/26 is deleted and the tire pressure warning light goes off.
11. PERFORM INITIALIZATION AND CALIBRATION OF LINEAR SOLENOID VALVE (When Using the Techstream) (Electronically Controlled Brake System)
(a) Clear the stored linear solenoid valve calibration data.
(1) Turn the power 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 power switch on (IG).
(6) Turn the Techstream on.
(7) Select the skid control ECU to clear the linear solenoid valve calibration data using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Reset Memory.
(8) Perform initialization and calibration of the linear solenoid valve.
(9) Perform the zero point calibration of yaw rate and acceleration sensor.
(b) Perform initialization and calibration of the linear solenoid valve.
(1) Turn the power 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 power switch on (IG) with the brake pedal released.
NOTICE:
* 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 auxiliary battery voltage.
* When the linear solenoid valve offset learning is interrupted, or the learning process is performed with the shift lever not in P, DTC C1345 (Linear Solenoid Valve Offset Learning Undone) will be stored.
(6) Turn the Techstream on.
(7) Switch the skid control ECU to the Test Mode using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / ECB* Utility / Linear Valve Offset.
*: Electronically Controlled Brake System
(8) Leave the vehicle stationary without depressing the brake pedal for 1 or 2 minutes.
(9) Check that the interval between blinks of the brake warning light / yellow (minor malfunction) changes from 1 second to 0.25 seconds.
HINT
* The time needed to complete initialization and calibration of the linear solenoid valve varies depending on auxiliary battery voltage.
* The brake warning light / yellow (minor malfunction) blinks at 1 second intervals during initialization and calibration of the linear solenoid valve and changes to the Test Mode display.
* The brake warning light / yellow (minor malfunction) blinks at 0.25 seconds intervals if the Test Mode is normal.
(10) Check that DTC C1345 (Linear Solenoid Valve Offset Learning Undone) which indicates trouble with stroke sensor zero point learning is not output when the brake warning light / yellow (minor malfunction) changes to the Test Mode display upon initialization and calibration of the linear solenoid valve completion.
(11) Enter the normal mode from the Test Mode following the Techstream directions.
HINT
Refer to the Techstream operator's manual for further details.
12. PERFORM INITIALIZATION AND CALIBRATION OF LINEAR SOLENOID VALVE (When not Using the Techstream) (Electronically Controlled Brake System)
(a) Clear the stored linear solenoid valve calibration data.
(1) Turn the power switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P.
(4) Turn the power switch on (IG) with the brake pedal released.
(5) Using SST, connect and disconnect terminals TS and CG of the DLC3 4 times or more within 8 seconds.
SST : 09843-18040
Text in Illustration
(6) 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.
HINT
The ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights do not indicate a normal system code.
(7) Remove SST from the terminals of the DLC3.
(8) Perform initialization and calibration of the linear solenoid valve.
(9) Perform the zero point calibration of yaw rate and acceleration sensor.
(b) Perform initialization and calibration of the linear solenoid valve.
(1) Turn the power switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P.
(4) Using SST, connect terminals TS and CG of the DLC3.
SST : 09843-18040
Text in Illustration
(5) Turn the power switch on (IG) with the brake pedal released.
NOTICE:
* 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 auxiliary battery voltage.
* When the linear solenoid valve offset learning is interrupted, or the learning process is performed with the shift lever not in P, DTC 66 (Linear Solenoid Valve Offset Learning Undone) will be stored.
(6) Leave the vehicle stationary without depressing the brake pedal for 1 or 2 minutes.
(7) Check that the interval between blinks of the brake warning light / yellow (minor malfunction) changes from 1 second to 0.25 seconds.
HINT
* The time needed to complete initialization and calibration of the linear solenoid valve varies depending on the auxiliary battery voltage.
* The brake warning light / yellow (minor malfunction) blinks at 1 second intervals during initialization and calibration of the linear solenoid valve and changes to the Test Mode display.
* The brake warning light / yellow (minor malfunction) blinks at 0.25 seconds intervals if Test Mode is normal.
(8) Check that DTC 66 (Linear Solenoid Valve Offset Learning Undone) which indicates trouble with stroke sensor zero point learning is not output when the brake warning light / yellow (minor malfunction) changes to the Test Mode display upon initialization and calibration of the linear solenoid valve completion.
(9) Turn the power switch off and disconnect SST from the DLC3.
13. OBTAIN ZERO POINT OF YAW RATE AND ACCELERATION SENSOR (When Using the Techstream) (Electronically Controlled Brake System)
NOTICE:
* While obtaining the zero points, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. (Do not turn the power switch on (READY).)
* 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.
(1) Turn the power 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 power switch on (IG).
(6) Turn the Techstream on.
(7) Select the skid control ECU and clear the zero point calibration data using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Reset Memory.
(8) Turn the power switch off.
NOTICE:
If the power 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 light.
(b) Perform the zero point calibration of the yaw rate and acceleration sensor.
(1) Turn the power 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 stored if the shift lever is not in P.
(4) Connect the Techstream to the DLC3.
(5) Turn the power 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 ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights come on for several seconds and then blink in Test Mode.
HINT
* If the ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights do not blink, perform zero point calibration again.
* The zero point calibration is performed only once after the system enters Test Mode.
* Calibration cannot be performed again until the stored data is cleared.
(10) Turn the power switch off and disconnect the Techstream.
14. OBTAIN ZERO POINT OF YAW RATE AND ACCELERATION SENSOR (When not Using the Techstream) (Electronically Controlled Brake System)
NOTICE:
* While obtaining the zero points, keep the vehicle stationary and do not vibrate, tilt, move, or shake it. (Do not turn the power switch on (READY).)
* 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.
(1) Turn the power switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P.
(4) Turn the power switch on (IG).
(5) Check that the initial check is completed.
(6) Using SST, connect and disconnect terminals TS and CG of the DLC3 4 times or more within 8 seconds.
SST : 09843-18040
Text in Illustration
(7) 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.
HINT
The ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights do not indicate a normal system code.
NOTICE:
If the power 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 light.
(b) Perform the zero point calibration of the yaw rate and acceleration sensor.
(1) Turn the power switch off.
(2) Check that the steering wheel is centered.
(3) Check that the shift lever is in P.
NOTICE:
DTCs 36 (Zero Point Calibration of Yaw Rate Sensor Undone) and 98 (Zero Point Calibration of Acceleration Sensor Undone) will be recorded if the shift lever is not in P.
(4) Using SST, connect terminals TS and CG of the DLC3.
SST : 09843-18040
Text in Illustration
(5) Turn the power switch on (IG).
(6) After Test Mode has been entered, keep the vehicle stationary on a level surface for 2 seconds or more.
(7) Check that the ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights come on for several seconds and then blink in Test Mode.
HINT
* If the ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights do not blink, perform zero point calibration again.
* The zero point calibration is performed only once after the system enters Test Mode.
* Calibration cannot be performed again until the stored data is cleared.
(8) Turn the power switch off and disconnect SST from the DLC3.
15. ROTATION ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION (Power Steering System)
NOTICE:
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 steering column assembly has been replaced.
* Steering effort differs between turning left and right.
(a) Inspection before calibration
(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) Calibrate the power steering ECU. Enter the following menus: Chassis / EMPS / Data List.
(6) Check the values by referring to the table below.
EMPS
Standard Voltage:
10 to 14 V
NOTICE:
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.
(b) Rotation angle sensor calibration value clear, rotation angle sensor 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 cannot be initialized. Clear the DTC before starting initialization.
(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: Chassis / EMPS / Utility / Torque Sensor Adjustment.
NOTICE:
* Center the steering wheel and align the front wheels straight ahead.
* Do not turn the steering wheel sharply.
* Do not touch the steering wheel during the torque sensor zero point calibration. (Wait for 3 seconds after the calibration.)
16. ADJUST PARKING ASSIST MONITOR SYSTEM (Parking Assist Monitor System)
(a) This parking assist monitor system can be set from the diagnostic screen of the multi-display.
(b) If the following operations are performed, it is necessary to perform adjustments and checks on the diagnostic screen.
HINT
The adjustment values stored while performing parking assist monitor system calibration are stored in the parking assist ECU.