ACTIVE STABILIZER SUSPENSION SYSTEM, Diagnostic DTC:C1912

DTC Code DTC Name
C1912 Malfunction in Rear Active Stabilizer Control ECU Short Relay Power Supply IC

DESCRIPTION

When a malfunction is detected in the motor short relay power supply IC of the rear active stabilizer control ECU, DTC C1912 is output.

DTC Code Detection Condition Trouble Area
C1912 Malfunction is detected in motor short relay power supply IC of rear active stabilizer control ECU

  • Rear active stabilizer control ECU

  • Rear active stabilizer control actuator

PROCEDURE


  1. INTERCHANGE FRONT AND REAR ACTIVE STABILIZER CONTROL ECU ASSEMBLY


    1. Turn the power switch OFF.

    2. Interchange the rear active stabilizer control ECU with the front active stabilizer control ECU, and install them securely.

      Tech Tips


      • Interchange the front and rear active stabilizer control ECUs and check for DTCs. After interchanging the ECUs, if a front stabilizer DTC is displayed, it can be determined that the rear active stabilizer control ECU is malfunctioning. If no DTC is output, the rear active stabilizer control actuator is malfunctioning.

      • For the ECU removal and installation procedures, refer to the front ECU procedures (see page ) or the rear ECU procedures Click here.


    NEXT

  2. CLEAR DTC


    1. Turn the power switch OFF.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the power switch ON (IG) and the tester ON.

    4. Clear the DTC Click here.


    NEXT

  3. CHECK OPERATION OF REAR ACTIVE STABILIZER CONTROL ECU ASSEMBLY


    1. Turn the power switch OFF.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the power switch ON (READY) and wait 30 seconds or more. Then check for front stabilizer DTCs Click here.

      OK
      DTC C1938 is not output

    OK

    REPLACE REAR ACTIVE STABILIZER CONTROL ACTUATOR ASSEMBLY Click here

    NG

    REPLACE REAR ACTIVE STABILIZER CONTROL ECU ASSEMBLY Click here