LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2007 >> IS 250 RWD, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> VEHICLE STABILITY CONTROL SYSTEM (w/o VDIM) >> Calibration

VEHICLE STABILITY CONTROL SYSTEM (w/o VDIM): Calibration

  1. 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
      Yaw Rate and Acceleration Sensor
      1. Clearing zero point calibration data
      2. Yaw rate and acceleration sensor zero point calibration
      Front Wheel Alignment Adjustment
      1. Clearing zero point calibration data
      2. Yaw rate and acceleration sensor zero point calibration
  2. OBTAIN ZERO POINT OF YAW RATE AND ACCELERATION SENSOR (WHEN USING INTELLIGENT TESTER:) 
    NOTE:
    • 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.
      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 (A/T) or apply the parking brake (M/T).
      4. Turn the engine switch on (IG).
        Fig 1: Identifying Intelligent Tester To DLC3
        G05319431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Operate the intelligent tester to erase the codes (select "RESET MEMORY").

        HINT:

        Refer to the intelligent tester operator's manual for further details.

      6. Turn the engine switch off.
        NOTE: If the engine switch is turned on (IG) for more than 15 seconds with the shift lever in the P position after zero point of the yaw rate and acceleration sensor has been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under this condition, the skid control ECU will store that zero point calibration of the acceleration sensor is not completed and will indicate that there is a malfunction in the VSC system using the indicator lights and multi-information display.
        Fig 2: CONSULT-II Display - RESET MEMORY
        G05319432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Perform the zero point calibration of yaw rate and acceleration sensor.
      1. Turn the engine switch off.
      2. Check that the steering wheel is centered and move the shift lever to the P position (A/T) or apply the parking brake (M/T).
        NOTE: DTCs C1210/36 and C1336/39 will be recorded if the shift lever is not in the P position (A/T) or the parking brake is not applied (M/T) (See DTC C1210/36 ZERO POINT CALIBRATION OF YAW RATE SENSOR UNDONE; DTC C1336/39 ZERO POINT CALIBRATION OF ACCELERATION SENSOR UNDONE  ).
      3. Connect the intelligent tester to the DLC3.
      4. Turn the engine switch on (IG).
        Fig 3: Identifying Intelligent Tester To DLC3
        G05319433Courtesy 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
        G05319434Courtesy 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.
  3. OBTAIN ZERO POINT OF YAW RATE AND ACCELERATION SENSOR (WHEN USING SST CHECK WIRE) 
    NOTE:
    • 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).
      Fig 5: Indicator Light Blinking Pattern And VSC TEST MODE Display
      G05319435Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Clear the zero point calibration data.
      1. Turn the engine switch off.
      2. Check that the steering wheel is centered and move the shift lever to the P position (A/T) or apply the parking brake (M/T).
      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 

        Fig 6: Identifying CG And TS Terminals Of DLC3 Connector
        G05319436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      6. Check that the "CHECK VSC" is displayed on the multi-information display.
        NOTE: If the engine switch is turned on (IG) for more than 15 seconds with the shift lever in the P position after zero point of the yaw rate and acceleration sensor has been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under this condition, the skid control ECU will store that zero point calibration of the acceleration sensor is not completed and will indicate that there is a malfunction in the VSC system using the indicator lights and multi-information display.
        Fig 7: Identifying VSC Displayed On Multi-Information Display
        G05319437Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Perform the zero point calibration of yaw rate and acceleration sensor.
      1. Turn the engine switch off.
      2. Check that the steering wheel is centered and move the shift lever to the P position (A/T) or apply the parking brake (M/T).
        NOTE: DTCs C1210/36 and C1336/39 will be recorded if the shift lever is not in the P position (A/T) or the parking brake is not applied (M/T) (See DTC C1210/36 ZERO POINT CALIBRATION OF YAW RATE SENSOR UNDONE; DTC C1336/39 ZERO POINT CALIBRATION OF ACCELERATION SENSOR UNDONE  ).
      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 CG And TS Terminals Of DLC3 Connector
        G05319438Courtesy 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: Indicator Light Blinking Pattern And VSC TEST MODE Display
        G05319439Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals