B0285

Electric Rear Defrost Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Heated rear window does not work
The malfunction indicator on the dashboard lights up
Reduced visibility in cold weather

Causes

Broken or damaged wiring harness
Heating relay malfunction
Damage to the heating element
Short circuit in the circuit
Problems with the control unit

How to Fix

Check the voltage on the heating circuit
Inspect the wiring harness for damage
Check heating relay
Check the integrity of the heating element
Replace faulty components

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