VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1201/51

DTC Code DTC Name
C1201/51 Engine Control System Malfunction

DESCRIPTION

If a malfunction in the engine control system is detected, the operations of VSC and TRC are prohibited by the fail-safe function. When the signals from the ECM are input normally, the fail-safe is canceled and the DTC is cleared.

DTC Code DTC Detection Condition Trouble Area
C1201/51 Engine control system malfunction signal continues for 5 seconds. Engine control system

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK ENGINE TYPE


    1. Check the engine type.

      Result
      Result Proceed to
      1ZR-FAE A
      2ZR-FAE B
      3ZR-FAE C
      3ZR-FE D

    B

    CHECK ENGINE CONTROL SYSTEM Click here

    C

    CHECK ENGINE CONTROL SYSTEM Click here

    D

    CHECK ENGINE CONTROL SYSTEM Click here

    A

  2. CHECK ENGINE CONTROL SYSTEM


    1. Check if an engine control system DTC is output Click here.

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

    B

    INSPECT ENGINE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here

    A

    REPLACE ECM Click here

  3. CHECK ENGINE CONTROL SYSTEM


    1. Check if an engine control system DTC is output Click here.

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

    B

    INSPECT ENGINE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here

    A

    REPLACE ECM Click here

  4. CHECK ENGINE CONTROL SYSTEM


    1. Check if an engine control system DTC is output Click here.

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

    B

    INSPECT ENGINE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here

    A

    REPLACE ECM Click here

  5. CHECK ENGINE CONTROL SYSTEM


    1. Check if an engine control system DTC is output Click here.

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

    B

    INSPECT ENGINE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here

    A

    REPLACE ECM Click here