C0393
Rear Axle Coupling Solenoid Control Circuit
C0393 is an OBD-II diagnostic trouble code meaning: Rear Axle Coupling Solenoid Control Circuit. Common causes: open or short circuit in the solenoid control circuit, rear axle clutch solenoid malfunction. Estimated repair cost: $56–222.
Symptoms
- Incorrect all-wheel drive operation
- Illuminated fault indicator on the dashboard
- Possible vibrations or noises when driving
- Unexpected rear axle disconnection
Causes
- Open or short circuit in the solenoid control circuit
- Rear axle clutch solenoid malfunction
- Problems with the control unit
- Oxidized or damaged contacts
- Wiring Harness Problems
How to Fix
- Carry out diagnostics using an OBD-II scanner
- Check the integrity of the wiring harness
- Measure the solenoid resistance
- Check contacts and connectors for oxidation and damage
- Replace solenoid or wiring harness if necessary
- Check and reflash the control unit if necessary
Related codes
Error C0393 by Vehicle Brand
FAQ
What does the C0393 code mean?
C0393 is an OBD-II diagnostic trouble code that indicates: Rear Axle Coupling Solenoid Control Circuit
What causes a C0393 error code?
The most common causes of C0393 include: Open or short circuit in the solenoid control circuit; Rear axle clutch solenoid malfunction; Problems with the control unit; Oxidized or damaged contacts.
How do I fix a C0393 diagnostic trouble code?
To fix C0393: Carry out diagnostics using an OBD-II scanner. Check the integrity of the wiring harness. Measure the solenoid resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0393?
Limited driving only, diagnose soon
How much does it cost to fix C0393?
The estimated repair cost for C0393 is $56–222. Actual cost depends on your vehicle, location, and labor rates.
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