VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1336

DTC Code DTC Name
C1336 Zero Point Calibration of Acceleration Sensor Undone

DESCRIPTION

The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via CAN communication.

Tip:

If there is a malfunction in the bus lines between the yaw rate and acceleration sensor (airbag sensor assembly) and the CAN communication system, DTC U0123 (Lost Communication with Yaw Rate Sensor Module) is output. When DTC U0123 is output together with C1336, inspect and repair the trouble areas indicated by U0123 first.

This DTC is also output when the calibration has not been completed.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

C1336

Zero Point Calibration of Acceleration Sensor Undone

Zero point calibration of acceleration sensor undone.

  • Sensor installation

  • Acceleration sensor (airbag sensor assembly)

  • Skid control ECU (brake actuator assembly)

Tire pressure warning light (w/ tire pressure warning system) is off.

CAUTION / NOTICE / HINT

Note:

When replacing the skid control ECU (brake actuator assembly) or yaw rate and acceleration sensor (airbag sensor assembly), perform system variant learning and acceleration sensor zero point calibration.

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Tip:

When U0123 is output together with C1336, inspect and repair the trouble areas indicated by U0123 first.

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PROCEDURE

  1. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR

    1. Perform zero point calibration of the yaw rate and acceleration sensor.

      Click hereClick here

      Chassis > ABS/VSC/TRC > Utility

      Tester Display

      Test Mode

    Result

    Proceed to

    NEXT
    NEXT

  2. PERFORM TEST MODE INSPECTION (SIGNAL CHECK)

    1. Perform the sensor check in Test Mode Procedure.

      Click hereClick here

      Chassis > ABS/VSC/TRC > Utility

      Tester Display

      Signal Check

      OK

      No Test Mode DTCs are output.

    Result

    Proceed to

    OK

    NG
    OK

    END

    NG

  3. CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION

    1. Turn the ignition switch off.

    2. Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.

      Click here

      OK

      The sensor should be tightened to the specified torque.

      The sensor should not be installed in a tilted position.

    Result

    Proceed to

    OK

    NG
    NG

    INSTALL AIRBAG SENSOR ASSEMBLY

    Click here

    OK

  4. READ VALUE USING GTS (YAW RATE AND ACCELERATION SENSOR)

    1. Connect the GTS the DLC3.

    2. Turn the ignition switch to ON.

    3. Select the Data List using the GTS.

      Click hereClick hereClick here

      Chassis > ABS/VSC/TRC > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Deceleration Sensor

      Acceleration sensor reading

      Min.: -18.525 m/s2

      Max.: 18.387 m/s2

      -

      During deceleration/acceleration: Changes continuously

      Deceleration Sensor2

      Acceleration sensor 2 reading

      Min.: -18.525 m/s2

      Max.: 18.387 m/s2

      -

      During deceleration/acceleration: Changes continuously

      Chassis > ABS/VSC/TRC > Data List

      Tester Display

      Deceleration Sensor

      Deceleration Sensor2

    4. Check the yaw rate and acceleration sensor (airbag sensor assembly) output value displayed on the GTS.

      OK

      The yaw rate and acceleration sensor (airbag sensor assembly) output value is normal.

      Note:

      Check the yaw rate and acceleration sensor signal after replacement.

      Click hereClick here

      Tip:

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.

      Click hereClick here

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY

    Click hereClick here

    NG

    REPLACE AIRBAG SENSOR ASSEMBLY

    Click here