B3722

Rear Wiper Relay Drive Circuit Low

Severity

✅ Low

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$11–56 (est.)

Symptoms

Rear wiper does not work
Rear wiper intermittent operation
Rear windshield wiper turns on spontaneously

Causes

Broken or damaged wires in the harness
Faulty rear wiper relay
Corrosion of contacts in connectors
Control module problem

How to Fix

Check the integrity of the rear wiper wiring harness
Inspect connectors for corrosion or damage
Check the operation of the rear wiper relay
Diagnose the control module

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