B3723
Rear Wiper Relay Drive Circuit High
B3723 is an OBD-II diagnostic trouble code meaning: Rear Wiper Relay Drive Circuit High. Common causes: short circuit to positive in the relay circuit, faulty rear wiper relay. Estimated repair cost: $56–167.
Symptoms
- Rear wiper does not work
- Rear wiper runs continuously
- Rear windshield wiper turns on spontaneously
Causes
- Short circuit to positive in the relay circuit
- Faulty rear wiper relay
- Wiring harness damage
- Contact corrosion
- Control unit malfunction
How to Fix
- Check rear wiper relay
- Inspect the wiring harness for damage
- Check relay control circuit for short circuit
- Clean the contacts and treat them with an anti-corrosion compound
- Replace relay or wiring harness if necessary
Related codes
Error B3723 by Vehicle Brand
FAQ
What does the B3723 code mean?
B3723 is an OBD-II diagnostic trouble code that indicates: Rear Wiper Relay Drive Circuit High
What causes a B3723 error code?
The most common causes of B3723 include: Short circuit to positive in the relay circuit; Faulty rear wiper relay; Wiring harness damage; Contact corrosion.
How do I fix a B3723 diagnostic trouble code?
To fix B3723: Check rear wiper relay. Inspect the wiring harness for damage. Check relay control circuit for short circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3723?
Limited driving only, diagnose soon
How much does it cost to fix B3723?
The estimated repair cost for B3723 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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