VEHICLE STABILITY CONTROL SYSTEM (w/ VDIM): Calibration

DESCRIPTION

After replacing the VSC relevant components or performing "Front wheel alignment adjustment", clear and read the sensor calibration data.
Follow the chart to perform calibration.

CALIBRATION CHART

Replacing Parts / Operation	Necessary Operation
Skid Control ECU	Yaw rate and acceleration sensor zero point calibration and system information storing
Yaw Rate and Acceleration Sensor	Clearing zero point calibration data Yaw rate and acceleration sensor zero point calibration
Front Wheel Alignment Adjustment	Clearing zero point calibration data Yaw rate and acceleration sensor zero point calibration

PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION AND STORE SYSTEM INFORMATION (WHEN USING INTELLIGENT TESTER:)
NOTE:
- Stored system information cannot be overwritten unless it is cleared. If any system information has already been stored, erase the stored information and then store new system information.
- While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it and keep it stationary. (Do not start the engine.)
- Be sure to do this on a level surface (with an inclination of less than 1 degree).
1. Clear the zero point calibration data and system information.
  NOTE: Performing the following procedure will clear the zero point of the yaw rate and acceleration sensor, and also system information simultaneously.
  1. Turn the engine switch off.
  2. Connect the intelligent tester to the DLC3.
  3. Check that the steering wheel is centered and move the shift lever to the P position.
  4. Turn the engine switch on (IG).
  5. Operate the intelligent tester to erase the codes (select "RESET MEMORY").
    
    Fig 1: Identifying Intelligent Tester To DLC3
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    
    Refer to the intelligent tester operator's manual for further details.
  6. Turn the engine switch off.
    NOTE: If the vehicle is driven after the zero point of the yaw rate and acceleration sensor and system information is cleared, DTCs will be stored.
    
    Fig 2: CONSULT-II Display - RESET MEMORY
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Perform the yaw rate and acceleration sensor zero point calibration and store system information.
  NOTE: Performing the following procedure will perform the yaw rate and acceleration sensor zero point calibration, and also store system information simultaneously.
  1. Turn the engine switch off.
  2. Check that the steering wheel is centered and move the shift lever to the P position.
    NOTE:
    DTCs C1210/36 and C1336/98 will be recorded if the shift lever is not in the P position (See DTC C1210/36 ZERO POINT CALIBRATION OF YAW RATE SENSOR UNDONE; DTC C1336/98 ZERO POINT CALIBRATION OF ACCELERATION SENSOR UNDONE ).
    
    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.
  3. Connect the intelligent tester to the DLC3.
  4. Turn the engine switch on (IG).
    
    Fig 3: Identifying Intelligent Tester To DLC3
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. Set the intelligent tester to Test Mode (select "TEST MODE").
    HINT:
    
    Refer to the intelligent tester operator's manual for further details.
  6. After the Test Mode has been entered, keep the vehicle stationary on a level surface for 2 seconds or more.
    
    Fig 4: CONSULT-II Display - TEST MODE
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. Check that the master caution indicator light blinks and "VSC TEST MODE" is displayed on the multi-information display (Test Mode).
    HINT:
    - If the master caution indicator light does not blink and/or "VSC TEST MODE" is not displayed on the multi-information display, perform zero point calibration again.
    - The zero point calibration is performed only once after the system enters the Test Mode.
    - Calibration cannot be performed again until the stored data is cleared once.
  8. Turn the engine switch off and disconnect the intelligent tester.
    
    Fig 5: Identifying Indicator Light Blinking Pattern And VSC TEST MODE Display
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION AND STORE SYSTEM INFORMATION (WHEN USING SST CHECK WIRE:)
NOTE:
- Stored system information cannot be overwritten unless it is cleared. If any system information has already been stored, erase the stored information and then store new system information.
- While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it and keep it stationary. (Do not start the engine.)
- Be sure to do this on a level surface (with an inclination of less than 1 degree).
1. Clear the zero point calibration data and system information.
  NOTE: Performing the following procedure will clear the zero point of the yaw rate and acceleration sensor, and also system information simultaneously.
  
  Fig 6: Identifying Terminals TS And CG Of DLC3 Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Turn the engine switch off.
  2. Check that the steering wheel is centered and move the shift lever to the P position.
  3. Turn the engine switch on (IG).
  4. The warning light and indicator light come on for 3 seconds to indicate that the initial check is completed.
  5. Using SST, connect and disconnect terminals TS and CG of the DLC3 4 times or more within 8 seconds.
    SST 09843-18040
  6. Check that the "CHECK VSC" is displayed on the multi-information display.
    NOTE: If the vehicle is driven after the zero point of the yaw rate and acceleration sensor and system information is cleared, DTCs will be stored.
2. Perform the yaw rate and acceleration sensor zero point calibration and store system information.
  NOTE: Performing the following procedure will perform the yaw rate and acceleration sensor zero point calibration, and also store system information simultaneously.
  
  Fig 7: Identifying VSC Displayed On Multi-Information Display
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Turn the engine switch off.
  2. Check that the steering wheel is centered and move the shift lever to the P position.
    NOTE:
    DTCs C1210/36 and C1336/98 will be recorded if the shift lever is not in the P position (See DTC C1210/36 ZERO POINT CALIBRATION OF YAW RATE SENSOR UNDONE; DTC C1336/98 ZERO POINT CALIBRATION OF ACCELERATION SENSOR UNDONE ).
    
    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.
  3. Using SST, connect terminals TS and CG of the DLC3.
    SST 09843-18040
  4. Turn the engine switch on (IG).
  5. Keep the vehicle stationary on a level surface for 2 seconds or more.
    
    Fig 8: Identifying Terminals TS And CG Of DLC3 Connector
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. Check that the master caution indicator light blinks and "VSC TEST MODE" is displayed on the multi-information display (Test Mode).
    HINT:
    - If the master caution indicator light does not blink and/or "VSC TEST MODE" is not displayed on the multi-information display, perform zero point calibration again.
    - The zero point calibration is performed only once after the system enters the Test Mode.
    - Calibration cannot be performed again until the stored data is cleared once.
  7. Turn the engine switch off and disconnect the SST from the DLC3.
    
    Fig 9: Identifying Indicator Light Blinking Pattern And VSC TEST MODE Display
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002