B0286
Electric Rear Defrost Circuit High
B0286 is an OBD-II diagnostic trouble code meaning: Electric Rear Defrost Circuit High. Common causes: broken heating element, oxidation of contacts on the rear window. Estimated repair cost: $6–56.
Symptoms
- Heated rear window does not work
- Heating is not working at full capacity
- Intermittent heating operation
- Heating indicator does not light up
Causes
- Broken heating element
- Oxidation of contacts on the rear window
- Wiring harness damage
- Heating relay malfunction
- Fuse problems
- Control unit defective
How to Fix
- Check the condition of the heating circuit fuse
- Check the operation of the heating relay
- Inspect the contacts on the rear window
- Check the integrity of the heating filaments
- Diagnose the circuit resistance with a multimeter
- Check the integrity of the wiring harness from the control unit to the glass
Related codes
Error B0286 by Vehicle Brand
FAQ
What does the B0286 code mean?
B0286 is an OBD-II diagnostic trouble code that indicates: Electric Rear Defrost Circuit High
What causes a B0286 error code?
The most common causes of B0286 include: Broken heating element; Oxidation of contacts on the rear window; Wiring harness damage; Heating relay malfunction.
How do I fix a B0286 diagnostic trouble code?
To fix B0286: Check the condition of the heating circuit fuse. Check the operation of the heating relay. Inspect the contacts on the rear window. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0286?
Limited driving only, diagnose soon
How much does it cost to fix B0286?
The estimated repair cost for B0286 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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