C1208
ABS Rear Isolation Valve Circuit Short To Battery
C1208 is an OBD-II diagnostic trouble code meaning: ABS Rear Isolation Valve Circuit Short To Battery. Common causes: damage to the wiring harness (frayed, broken, shorted to power), short circuit in the isolation valve itself. Estimated repair cost: $56–167.
Symptoms
- The ABS light on the dashboard is on
- Disabling ABS and ESP
- Unusual brake behavior (hard or weak)
- Error message on the on-board computer display
Causes
- Damage to the wiring harness (frayed, broken, shorted to power)
- Short circuit in the isolation valve itself
- ABS module malfunction
- Corrosion or poor contact in connectors
- Chain ground problems
How to Fix
- Carry out diagnostics with a scanner to confirm code C1208
- Visually inspect the wiring harness for damage.
- Check isolation valve resistance and circuit continuity
- Check connectors and contacts for corrosion
- If necessary, replace damaged wires or valve
- If the problem persists, check the ABS module
Related codes
FAQ
What does the C1208 code mean?
C1208 is an OBD-II diagnostic trouble code that indicates: ABS Rear Isolation Valve Circuit Short To Battery
What causes a C1208 error code?
The most common causes of C1208 include: Damage to the wiring harness (frayed, broken, shorted to power); Short circuit in the isolation valve itself; ABS module malfunction; Corrosion or poor contact in connectors.
How do I fix a C1208 diagnostic trouble code?
To fix C1208: Carry out diagnostics with a scanner to confirm code C1208. Visually inspect the wiring harness for damage.. Check isolation valve resistance and circuit continuity. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1208?
Limited driving only, diagnose soon
How much does it cost to fix C1208?
The estimated repair cost for C1208 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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