Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics): 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.
  
  Fig 1: Calibration Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
USING HAND HELD TESTER:
CLEAR ZERO POINT CALIBRATION
1. Connect the hand held tester to the DLC3. (see Figure)
2. Turn the ignition switch on (IG).
3. Operate the hand held tester to erase the codes (select "RESET MEMORY").
  HINT:
  
  Refer to the hand held tester operator's manual for further details.
4. Using the hand held tester, perform zero point calibration of the yaw rate and deceleration sensor (refer to step 3).
PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR AND DECELERATION SENSOR
NOTE:
- While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it and keep it in a stationary condition. (Do not start the engine.)
- Be sure to do this on a level surface (with an inclination of less than 1 degree).
1. Procedures for test mode.
  1. Check that the steering wheel is in the straight-ahead position and move the shift lever to the P position.
    NOTE: DTC C1210/36 and C1336/39 will be recorded if the shift lever is not in the P position (see DTC C1210/36 ZERO POINT CALIBRATION OF YAW RATE SENSOR UNDONE, DTC C1336/39 ZERO POINT CALIBRATION OF DECELERATION SENSOR UNDONE ).
  2. Connect the hand held tester to the DLC3. (see Figure)
  3. Turn the ignition switch on (IG).
  4. Set the hand held tester to test mode (select "TEST MODE").
  HINT:
  
  Refer to the hand held tester operator's manual for further details.
2. Obtain the zero point of the yaw rate sensor and deceleration sensor.
  1. Keep the vehicle in the stationary condition on a level surface for 2 seconds or more.
    
    Fig 2: Identifying Hand-Held Tester Display - Test Mode
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Check that the VSC warning light is blinking in TEST MODE.
  HINT:
  - If the VSC warning light does not blink, 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.
3. Turn the ignition switch off and disconnect the hand held tester.
  
  Fig 3: Identifying Test Mode Blinking Pattern (VSC Warning Light)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
USING SST CHECK WIRE:
CLEAR ZERO POINT CALIBRATION
1. Turn the ignition switch on (IG).
2. Using SST, connect and disconnect terminals TS and CG of the DLC3 4 times or more within 8 seconds.
  SST 09843-18040
  
  Fig 4: Identifying DLC3 Connector Terminals TS & CG
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check that the VSC warning light indicates the normal system code.
4. Remove the SST from the terminals of the DLC3.
5. Using a check wire, perform zero point calibration of the yaw rate and deceleration sensor (refer to step 5).
  
  Fig 5: Identifying Normal System Code Blinking Pattern
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR AND DECELERATION SENSOR
NOTE:
- While obtaining the zero point, do not vibrate the vehicle by tilting, moving or shaking it and keep it in a stationary condition. (Do not start the engine.)
- Be sure to do this on a level surface (with an inclination of less than 1 degree).
1. Procedures for test mode.
  1. Turn the ignition switch off.
  2. Using SST, connect terminals TS and CG of the DLC3.
    SST 09843-18040
  3. Check that the steering wheel is in the straight-ahead position and move the shift lever to the P position.
  NOTE: DTC C1210/36 and C1336/39 will be recorded if the shift lever is not in the P position (see DTC C1210/36 ZERO POINT CALIBRATION OF YAW RATE SENSOR UNDONE, DTC C1336/39 ZERO POINT CALIBRATION OF DECELERATION SENSOR UNDONE ).
  
  Fig 6: Identifying DLC3 Connector Terminals TS & CG
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Obtain the zero point of the yaw rate sensor and deceleration sensor.
  1. Turn the ignition switch on (IG).
  2. Keep the vehicle in the stationary condition on a level surface for 2 seconds or more.
  3. Check that the VSC warning light is blinking in TEST MODE.
  HINT:
  - If the VSC warning light does not blink, 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.
3. Turn the ignition switch off and disconnect the SST from the DLC3.
  
  Fig 7: Identifying Test Mode Blinking Pattern (VSC Warning Light)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002