VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1420

DTC Code DTC Name
C1420 Acceleration Sensor Malfunction

DESCRIPTION

This DTC is stored when the skid control ECU (brake actuator assembly) detects an abnormality in the difference between the acceleration sensor value and the control value estimated based on the yaw rate sensor, steering angle sensor and speed sensor signals.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

C1420

Acceleration Sensor Malfunction

The difference between the acceleration sensor value and the control value estimated inside the skid control ECU (brake actuator assembly) is abnormal.

  • Sensor installation

  • Acceleration sensor (airbag sensor assembly)

Tire pressure warning light (w/ tire pressure warning system) blinks for 63 seconds and then remains on.

CAUTION / NOTICE / HINT

Note:

When replacing the yaw rate and acceleration sensor (airbag sensor assembly), perform acceleration sensor zero point calibration.

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PROCEDURE

  1. CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION

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

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      OK

      The airbag sensor assembly is tightened to the specified torque.

      The airbag sensor assembly is not installed in a tilted position.

      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.

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    Result

    Proceed to

    OK

    NG
    OK

    REPLACE AIRBAG SENSOR ASSEMBLY

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    NG

    INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY

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