B3873
Front Washer Relay Circuit
B3873 is an OBD-II diagnostic trouble code meaning: Front Washer Relay Circuit. Common causes: front washer relay malfunction, open or short circuit in the circuit. Estimated repair cost: $6–33.
Symptoms
- Front windshield washer does not work
- No sound from the washer pump
- Error message on the dashboard
Causes
- Front washer relay malfunction
- Open or short circuit in the circuit
- Problems with the control unit
- Contact corrosion
- Wiring harness damage
How to Fix
- Check washer circuit fuse
- Check the relay with a multimeter
- Inspect the wiring harness for damage
- Check contacts for corrosion
- Replace relay if necessary
- Check the operation of the washer pump
Related codes
Error B3873 by Vehicle Brand
FAQ
What does the B3873 code mean?
B3873 is an OBD-II diagnostic trouble code that indicates: Front Washer Relay Circuit
What causes a B3873 error code?
The most common causes of B3873 include: Front washer relay malfunction; Open or short circuit in the circuit; Problems with the control unit; Contact corrosion.
How do I fix a B3873 diagnostic trouble code?
To fix B3873: Check washer circuit fuse. Check the relay with a multimeter. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3873?
Limited driving only, diagnose soon
How much does it cost to fix B3873?
The estimated repair cost for B3873 is $6–33. Actual cost depends on your vehicle, location, and labor rates.
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