C1215
ABS Front Right Isolation Valve Circuit Open
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)
Symptoms
- The ABS/ESP indicator on the dashboard is on
- ABS does not work during emergency braking
- Reduced braking performance on slippery surfaces
Causes
- Broken wires in ABS wiring harness
- Isolation valve malfunction
- Poor contact in valve connector
- ABS control unit malfunction
How to Fix
- Check the integrity of the wiring harness to the valve
- Check valve resistance (usually 5-10 ohms)
- Inspect connectors for corrosion or damage
- Replace valve or wiring harness if necessary
- Check the operation of the ABS system after repair