ACTIVE STABILIZER SUSPENSION SYSTEM, Diagnostic DTC:C191A

DTC Code DTC Name
C191A Malfunction in Signal from Steering Sensor to Rear Active Stabilizer Control ECU

DESCRIPTION

If the rear active stabilizer control ECU receives a steering sensor malfunction signal, DTC C191A is output. The steering sensor is diagnosed by the skid control ECU. If electronically controlled brake system related DTCs are output, perform a diagnosis of the electronically controlled brake system. If no electronically controlled brake DTCs are output, there may be a malfunction in the rear active stabilizer control ECU.

DTC No. DTC Detection Condition Trouble Area
C191A Malfunction signal from steering sensor is input to rear active stabilizer control ECU

  • Electronically controlled brake system

  • Steering sensor

  • Rear active stabilizer control ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)


    1. Turn the power switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the power switch on (READY) and the intelligent tester on.

    4. Check that no electronically controlled brake system DTCs are output Click here.

      OK
      DTC is not output.

    NG

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here

    OK

    REPLACE ACTIVE STABILIZER CONTROL ECU ASSEMBLY Click here