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 Code	Detection Condition	Trouble Area
C1922	Open in motor driver detected	Harness or connector Rear active stabilizer control actuator Rear active stabilizer control ECU
C1923	Short in motor driver ground detected
C1924	Short in motor driver line detected

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

CHECK CONNECTOR CONNECTION CONDITION
1. Turn the power switch OFF.
2. Inspect the condition of the rear active stabilizer control ECU connector terminal.
  
  OK
  
  Connector and terminal are not deformed or damaged. Terminal is not loose or corroded.
  
  Tech Tips
  
  The harness from the rear active stabilizer control actuator to the rear active stabilizer control ECU is part of the rear active stabilizer control actuator. If the harness is damaged and cannot be repaired, replace the rear active stabilizer control actuator assembly Click here.
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
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 Click here or the rear ECU procedures Click here.
NEXT
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
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 C194A, C194B and/or C194C are not output
NG
REPLACE REAR ACTIVE STABILIZER CONTROL ECU ASSEMBLY Click here

OK

REPLACE REAR ACTIVE STABILIZER CONTROL ACTUATOR ASSEMBLY Click here