C1669 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1669 – Incomplete Lock Release


C1669 Possible Symptoms


Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)


C1669 Possible Causes


Faulty 4WAS Front Actuator,4WAS Front Actuator harness is open or shorted,4WAS Front Actuator circuit poor electrical connection


C1669 Description


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 4WAS front actuator, the locking mechanism (holder) absorbs the force and locks 4WAS front actuator. Front wheel steering angle sensor detects a turning angle of 4WAS front motor. 4WAS front motor controls number of revolutions by a command value from the 4WAS front control unit. Gear shaft is an output axis of 4WAS front motor. (Gear shaft = 4WAS front motor revolution + steering angle) Spiral cables mean the power line and signal lines of 4WAS front motor.