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DTC C1420: Acceleration Sensor Malfunction: Procedure

  1. CHECK VEHICLE EQUIPMENT 
    1. Confirm whether the vehicle is w/ VDIM or w/o VDIM.
      RESULT

      Result Proceed to
      w/ VDIM A
      w/o VDIM B

    B → See step   3 

    A: Go to next step 

  2. CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION 
    1. Check that the yaw rate and acceleration sensor has been installed properly. Refer to INSTALLATION .

      OK

      The sensor is tightened to the specified torque.

      The sensor is not installed in a tilted position.

      NOTE:

      Check the yaw rate and acceleration sensor signal after replacement. Refer to TEST MODE PROCEDURE .

      HINT: 

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE .

    NG → See step   5 

    OK → See step   4 

  3. CHECK BRAKE ACTUATOR ASSEMBLY 
    1. Check that the brake actuator assembly has been installed properly. Refer to INSTALLATION .

      OK

      The brake actuator assembly is tightened to the specified torque.

      The brake actuator assembly is not installed in a tilted position.

      HINT: 

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE .

    NG → See step   7 

    OK → See step   6 

  4. REPLACE YAW RATE AND ACCELERATION SENSOR. Refer to  REMOVAL 
  5. INSTALL YAW RATE AND ACCELERATION SENSOR CORRECTLY. Refer to  INSTALLATION 
  6. REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL 
  7. INSTALL BRAKE ACTUATOR ASSEMBLY CORRECTLY. Refer to  INSTALLATION