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.

The yaw rate sensor has a built-in acceleration sensor.

DTC No. DTC Detection Condition Trouble Area
C1420 The difference between the acceleration sensor value and the control value estimated inside the skid control ECU is abnormal.

  • Sensor installation

  • Acceleration sensor (yaw rate sensor)

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK YAW RATE SENSOR INSTALLATION


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

      OK
      The yaw rate and acceleration sensor (yaw rate sensor) is tightened to the specified torque.
      The yaw rate and acceleration sensor (yaw rate sensor) is not installed in a tilted position.

      Tech Tips

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


    OK

    REPLACE YAW RATE SENSOR Click here

    NG

    INSTALL YAW RATE SENSOR CORRECTLY Click here