ACTIVE STABILIZER SUSPENSION SYSTEM, Diagnostic DTC:C1922, C1923, C1924

DTC Code DTC Name
C1922 Open in Rear Motor Driver Circuit
C1923 Short to GND in Rear Motor Driver
C1924 Short in Rear Motor Driver Circuit

DESCRIPTION

When an open or short is detected in the motor circuit of the rear active stabilizer control ECU and rear active stabilizer control actuator, DTC C1922, C1923 and/or C1924 are output.

DTC No. DTC Detection Condition Trouble Area
C1922 Open in motor driver detected

  • Harness or connector

  • Rear active stabilizer control actuator assembly

  • Rear active stabilizer control ECU
C1923 Short in motor driver ground detected
C1924 Short in motor driver line detected

WIRING DIAGRAM

A01NFQRE03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK CONNECTOR CONNECTION CONDITION


    1. Check that the wire harness connectors between the rear active stabilizer control ECU and rear active stabilizer control actuator assembly are not loose or disconnected and that the wire harness is not damaged.

      OK
      Connectors are not loose or disconnected. Wire harness is not damaged.

      Tech Tips

      If the wire harness of the rear active stabilizer control actuator assembly is damaged, replace the rear active stabilizer control actuator assembly Click here.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INTERCHANGE FRONT AND REAR ACTIVE STABILIZER CONTROL ECU


    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 Click here.


    NEXT

  3. 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 intelligent tester on.

    4. Clear the DTCs Click here.


    NEXT

  4. CHECK OPERATION OF REAR ACTIVE STABILIZER CONTROL ECU


    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 active stabilizer DTCs Click here.

      OK
      DTC C194A, C194B and/or C194C are not output.

      Tech Tips

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


    NG

    REPLACE ACTIVE STABILIZER CONTROL ECU ASSEMBLY Click here

    OK

    REPLACE REAR ACTIVE STABILIZER CONTROL ACTUATOR ASSEMBLY Click here