C1667 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C1667 – 4WAS Lock Insertion
C1667 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C1667 Possible Causes
Faulty 4WAS Front Actuator,4WAS Front Actuator harness is open or shorted,4WAS Front Actuator circuit poor electrical connection
The 4 Wheel Active Steer (4WAS) front lock solenoid valve (lock structure) is controlled by the 4WAS front control unit, and locks/unlocks 4WAS Front Actuator. If a strong force (rotation direction) is applied to the 4WAS front actuator, the locking mechanism (holder) absorbs the force and locks 4WAS front actuator. The front wheel steering angle sensor detects a turning angle of the 4WAS front motor. 4WAS front motor controls the number of revolutions by a command value from the 4WAS front control unit. Gear shaft is an output axis of the 4WAS front motor. (Gear shaft = 4WAS front motor revolution + steering angle) Spiral cables mean the power line and signal lines of the 4WAS front motor.