ACTIVE HEIGHT CONTROL SUSPENSION, Diagnostic DTC:C1784

DTC Code DTC Name
C1784 Steering Angle Sensor Communication Error

DESCRIPTION

The steering sensor signal is sent to the suspension control ECU through the CAN communication system. When there is a communication malfunction, it will be detected by the diagnosis function.

DTC Code Detection Condition Trouble Area
C1784 A steering angle sensor signal malfunction is detected, or the steering angle sensor power malfunction signal is detected for 5 seconds or more.

  • Vehicle stability control system

  • Suspension control ECU

CAUTION / NOTICE / HINT

Note


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

  • If the suspension control ECU or height control sensor is replaced, the vehicle height offset calibration must be performed Click here.

PROCEDURE


  1. CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM)


    1. Check if a steering sensor malfunction DTC is output under the vehicle stability control system Click here.

      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

    B

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

    A

  2. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  3. CHECK DTC


    1. Check for DTCs.

      Result
      Result Proceed to
      DTC C1784 is output A
      DTC C1784 is not output B

    A

    REPLACE SUSPENSION CONTROL ECU Click here

    B

    USE SIMULATION METHOD TO CHECK Click here