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VEHICLE STABILITY CONTROL SYSTEM (w/ VDIM): Calibration

WARNING: This page is about a different car, the 2006 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
  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.
    REPLACING PARTS

    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
    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. PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION AND STORE SYSTEM INFORMATION (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.
        Fig 1: Connecting Intelligent Tester To DLC3
        G04047585Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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 2: Select "RESET MEMORY" Screen Display
        G04052032Courtesy 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.
    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:
      3. Connect the intelligent tester to the DLC3.
        Fig 3: Connecting Intelligent Tester To DLC3
        G04047585Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Turn the engine switch on (IG).
      5. Set the intelligent tester to Test Mode (select "TEST MODE").
        Fig 4: Select "TEST MODE" Screen Display
        G04052034Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        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.
      7. Check that the master caution indicator light blinks and "VSC TEST MODE" is displayed on the multi information display (Test Mode).
        Fig 5: Identifying Test Mode Blinking Pattern
        G04047564Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        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. PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION AND STORE SYSTEM INFORMATION (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.
      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.
        Fig 6: Identifying DLC3 Connector Terminals
        G04052036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        SST 09843-18040 

      6. Check that the "CHECK VSC" is displayed on the multi information display.
        Fig 7: Identifying "CHECK VSC" Screen Display
        G04052037Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        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.
      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 C1201/51 ENGINE CONTROL SYSTEM MALFUNCTION  ).
        • 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.
        Fig 8: Connecting Terminals TS And CG Of DLC3
        G04052038Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        SST 09843-18040 

      4. Turn the engine switch on (IG).
      5. Keep the vehicle stationary on a level surface for 2 seconds or more.
      6. Check that the master caution indicator light blinks and "VSC TEST MODE" is displayed on the multi information display (Test Mode).
        Fig 9: Identifying Test Mode Blinking Pattern
        G04047564Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        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.
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