OBD Guide

B0287

Electric Rear Defrost Circuit Open

B0287 is an OBD-II diagnostic trouble code meaning: Electric Rear Defrost Circuit Open. Common causes: broken wires in the harness, blown fuse. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Heated rear window does not work
  • Malfunction indicator on the dashboard
  • Reduced visibility in cold weather

Causes

  • Broken wires in the harness
  • Blown fuse
  • Heating relay malfunction
  • Oxidation of contacts on the rear window
  • Damage to conductive threads on glass

How to Fix

  1. Check the heating circuit fuse
  2. Check heating relay
  3. Inspect the wiring harness for damage
  4. Check the contacts on the rear window
  5. Replace damaged circuit elements

Related codes

Error B0287 by Vehicle Brand

FAQ

What does the B0287 code mean?

B0287 is an OBD-II diagnostic trouble code that indicates: Electric Rear Defrost Circuit Open

What causes a B0287 error code?

The most common causes of B0287 include: Broken wires in the harness; Blown fuse; Heating relay malfunction; Oxidation of contacts on the rear window.

How do I fix a B0287 diagnostic trouble code?

To fix B0287: Check the heating circuit fuse. Check heating relay. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0287?

Limited driving only, diagnose soon

How much does it cost to fix B0287?

The estimated repair cost for B0287 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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