C0394 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C0394 – Rear Axle Coupling Solenoid Temperature Sensor Circuit Short to Ground or Open

 

C0394 Possible Symptoms

 

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

 

C0394 Possible Causes

 

Faulty Rear Axle Coupling Solenoid Temperature Sensor,Rear Axle Coupling Solenoid Temperature Sensor harness is open or shorted,Rear Axle Coupling Solenoid Temperature Sensor circuit poor electrical connection

 

C0394 Description

 

The rear differential Clutch Control Module (CCM) provides a power and ground circuits to the temperature sensor. When the temperature of the module is determined to be beyond its limits, the CCM will temporarily disable the rear drive system.