ADAPTIVE VARIABLE SUSPENSION SYSTEM, Diagnostic DTC:C1787

DTC Code DTC Name
C1787 Forward/Rearward/Sideways G Sensor Communication Error

DESCRIPTION

The absorber control ECU receives a signal from the yaw rate and acceleration sensor via CAN communication.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Note
C1787 Forward/Rearward/Sideways G Sensor Communication Error While the engine switch is on (IG), yaw rate and acceleration sensor malfunction signal is detected for 1 second or more.

  • CAN communication system

  • Absorber control ECU (front acceleration sensor RH)

  • Yaw rate and acceleration sensor

 Does not come on -

CAUTION / NOTICE / HINT

Note


  • Before performing troubleshooting, inspect the connectors of related circuits.

  • If DTC C1782 (Power Source Voltage Malfunction) is output at the same time, perform troubleshooting for C1782 first.

    Click here

  • Before replacing the absorber control ECU (front acceleration sensor RH), perform all of the following:


    • Symptom simulation.

      Click here

    • DTC inspection.

      Click here

    • GTS inspection.

      Click here


      • If no malfunctions are found in other areas, replace the absorber control ECU (front acceleration sensor RH).

  • After replacing the absorber control ECU (front acceleration sensor RH) with a new one, perform registration of vehicle identification information.

    Click here

PROCEDURE


  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)


    1. Check for DTCs.

      Click here


      Chassis > Air suspension > Trouble Codes
      Result
      Result Proceed to
      CAN DTCs are not output A
      CAN DTCs are output B

    B

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) for LHD: Click here
    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) for RHD: Click here

    A

  2. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)


    1. Check for yaw rate and acceleration sensor malfunction DTCs.

      Click here


      Chassis > ABS/VSC/TRAC > Trouble Codes
      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

    A

    REPLACE ABSORBER CONTROL ECU (FRONT ACCELERATION SENSOR RH) Click here

    B

    GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here