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Home >> Toyota >> 2019 >> Corolla SE, 4D Hatchback, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Vehicle Stability Control System - Diagnostics - Introduction (1 Of 2) (Model Code: ZRE172)) >> Vehicle Stability Control System >> Calibration [08/2013 - 08/2015] >> Calibration [08/2013 - 08/2015]
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Calibration [08/2013 - 08/2015]

WARNING: This page is about a different variant/trim than selected.
  1. DESCRIPTION 
    1. After replacing any VSC related components or performing wheel alignment adjustment, clear and read the sensor calibration data.

      Refer to the table below and then perform the necessary operation according to the part to be replaced in order to perform calibration.

      Parts to be Replaced / Operation Necessary Operation
      Skid control ECU (brake actuator assembly) Yaw rate and acceleration sensor zero point calibration.
      Yaw rate and acceleration sensor (airbag sensor assembly)
      1. Clearing zero point calibration data.
      2. Yaw rate and acceleration sensor zero point calibration.
      3. Deceleration sensor zero point calibration and CVT oil pressure calibration (for continuously variable transaxle).

        Refer to INITIALIZATION [08/2013 - 08/2016]
      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 Techstream) 
    NOTE:
    • While obtaining the zero point, keep the vehicle stationary and do not vibrate, tilt, move, or shake it.
    • Be sure to perform this procedure on a level surface (with an inclination of less than 0.25 degrees).
    • While obtaining the zero point, make sure the tire pressure is as specified and the vehicle is in full contact with the ground (not lifted up or loaded).
    1. Clear the zero point calibration data.
      1. Turn the ignition switch off.
      2. Check that the steering wheel is centered.
      3. Apply the parking brake.
      4. Check that the shift lever is in neutral (for manual transaxle).
      5. Check that the shift lever is in P (for continuously variable transaxle or automatic transaxle).
      6. Connect the Techstream to the DLC3.
      7. Turn the ignition switch to ON.
      8. Turn the Techstream on.
      9. Select the skid control ECU (brake actuator assembly) to clear the zero point calibration data using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Reset Memory.

        Chassis > ABS/VSC/TRAC > Utility 

        Tester Display
        Reset Memory
      10. Turn the ignition switch off.
        NOTE:

        If the ignition switch is turned to ON for more than 15 seconds with the shift lever in P (for continuously variable transaxle or automatic transaxle) or the parking brake applied (for manual transaxle) after the 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 these conditions, the skid control ECU (brake actuator assembly) will store the zero point calibration for the acceleration sensor as not being completed. The skid control ECU (brake actuator assembly) will then also indicate this as a malfunction of the VSC system using the indicator light.

    2. Perform the zero point calibration of the yaw rate and acceleration sensor.
      1. Turn the ignition switch off.
      2. Check that the steering wheel is centered.
      3. Apply the parking brake.
      4. Check that the shift lever is in neutral (for manual transaxle).
      5. Check that the shift lever is in P (for continuously variable transaxle or automatic transaxle).
        NOTE:

        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 (for continuously variable transaxle or automatic transaxle) or the parking brake is not applied (for manual transaxle).

      6. Connect the Techstream to the DLC3.
      7. Turn the ignition switch to ON.
      8. Turn the Techstream on.
      9. Switch the skid control ECU (brake actuator assembly) to Test Mode using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Test Mode.

        Chassis > ABS/VSC/TRAC > Utility 

        Tester Display
        Test Mode
      10. After Test Mode has been entered, keep the vehicle stationary on a level surface for 5 seconds or more.
      11. Check that the slip indicator light comes on for several seconds and then blinks in the Test Mode pattern.

        HINT: 

        • If the slip indicator light does not blink, perform zero point calibration again.
        • Zero point calibration is performed only once after the system enters Test Mode.
        • Calibration cannot be performed again until the stored data is cleared.
      12. Turn the ignition switch off and disconnect the Techstream.
  3. OBTAIN ZERO POINT OF YAW RATE AND ACCELERATION SENSOR (When Using SST Check Wire) 
    NOTE:
    • While obtaining the zero point, keep the vehicle stationary and do not vibrate, tilt, move, or shake it.
    • Be sure to perform this procedure on a level surface (with an inclination of less than 0.25 degrees).
    • While obtaining the zero point, make sure the tire pressure is as specified and the vehicle is in full contact with the ground (not lifted up or loaded).
    1. Clear the zero point calibration data.
      1. Turn the ignition switch off.
      2. Check that the steering wheel is centered.
      3. Apply the parking brake.
      4. Check that the shift lever is in neutral (for manual transaxle).
      5. Check that the shift lever is in P (for continuously variable transaxle or automatic transaxle).
      6. Turn the ignition switch to ON.
      7. The warning light and indicator light come on for 3 seconds to indicate that the initial check has completed.
      8. Using SST, connect and disconnect terminals TS and CG of the DLC3 4 times or more within 8 seconds.
        Fig 1: DLC3 Connector Terminals Connector End View
        GTY433215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Front view of DLC3
        • SST: 09843-18040 
      9. Check that the slip indicator light comes on.
        NOTE:

        If the ignition switch is turned to ON for more than 15 seconds with the shift lever in P (for continuously variable transaxle or automatic transaxle) or the parking brake applied (for manual transaxle) after the 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 these conditions, the skid control ECU (brake actuator assembly) will store the zero point calibration for the acceleration sensor as not being completed. The skid control ECU (brake actuator assembly) will then also indicate this as a malfunction of the VSC system using the indicator light.

      10. Turn the ignition switch off.
    2. Perform the zero point calibration of the yaw rate and acceleration sensor.
      1. Turn the ignition switch off.
      2. Check that the steering wheel is centered.
      3. Apply the parking brake.
      4. Check that the shift lever is in neutral (for manual transaxle).
      5. Check that the shift lever is in P (for continuously variable transaxle or automatic transaxle).
        NOTE:

        DTCs 36 (Zero Point Calibration of Yaw Rate Sensor Undone) and 39 (Zero Point Calibration of Acceleration Sensor Undone) will be recorded if the shift lever is not in P (for continuously variable transaxle or automatic transaxle) or the parking brake is not applied (for manual transaxle).

      6. Using SST, connect terminals TS and CG of the DLC3.
        Fig 2: DLC3 Connector Terminals Connector End View
        GTY433215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Front view of DLC3
        • SST: 09843-18040 
      7. Turn the ignition switch to ON.
      8. After Test Mode has been entered, keep the vehicle stationary on a level surface for 5 seconds or more.
      9. Check that the slip indicator light comes on for several seconds and then blinks in the Test Mode pattern.

        HINT: 

        • If the slip indicator light does not blink, perform zero point calibration again.
        • 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 ignition switch off and disconnect SST from the DLC3.
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