C0266
EBCM Motor Relay Circuit High When Off
C0266 is an OBD-II diagnostic trouble code meaning: EBCM Motor Relay Circuit High When Off. Common causes: faulty ebcm relay, short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- The ABS/ESP indicator on the dashboard is on
- Incorrect operation of the anti-lock braking system
- Reduced braking performance
- Errors in other vehicle systems
Causes
- Faulty EBCM relay
- Short circuit in wiring harness
- Problems with the EBCM module
- Corrosion of contacts or connectors
- Power or grounding problems
How to Fix
- Check the condition of the EBCM relay and replace if necessary.
- Inspect the wiring harness for damage or short circuits.
- Check contacts and connectors for corrosion or oxidation
- Test the EBCM module for faults
- Check the integrity of the power supply and grounding circuits
Related codes
Error C0266 by Vehicle Brand
FAQ
What does the C0266 code mean?
C0266 is an OBD-II diagnostic trouble code that indicates: EBCM Motor Relay Circuit High When Off
What causes a C0266 error code?
The most common causes of C0266 include: Faulty EBCM relay; Short circuit in wiring harness; Problems with the EBCM module; Corrosion of contacts or connectors.
How do I fix a C0266 diagnostic trouble code?
To fix C0266: Check the condition of the EBCM relay and replace if necessary.. Inspect the wiring harness for damage or short circuits.. Check contacts and connectors for corrosion or oxidation. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0266?
Limited driving only, diagnose soon
How much does it cost to fix C0266?
The estimated repair cost for C0266 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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