C0376
Front Axle Disconnect
The 4WD control module has detected a fault on the front axle disconnect actuator. On part-time AWD vehicles this actuator decouples the front axle for fuel saving, and a fault prevents engagement or disengagement of front-wheel drive.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: hard
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Common causes
Ordered by how often each turns out to be the cause.
- Disconnect actuator failed (motor or solenoid)Common
- Wiring or connector faultPossible
- Axle position switch failedLess likely
Parts involved
- Front Axle Disconnect Actuator
- Awd Control Module
- Axle Position Switch
C0376 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.