B1839
Wiper Rear Motor Circuit Failure
B1839 is an OBD-II diagnostic trouble code meaning: Wiper Rear Motor Circuit Failure. Common causes: open or short circuit in wiring harness, rear wiper motor malfunction. Estimated repair cost: $22–89.
Symptoms
- Rear wiper does not work
- Rear wiper intermittent operation
- Rear wiper only operates at one speed
Causes
- Open or short circuit in wiring harness
- Rear wiper motor malfunction
- Relay or fuse problems
- Oxidation of contacts
- Control unit malfunction
How to Fix
- Check the rear wiper fuse and relay
- Inspect the wiring harness for damage
- Check contacts and connections
- Test the wiper motor
- If necessary, replace faulty components
Related codes
FAQ
What does the B1839 code mean?
B1839 is an OBD-II diagnostic trouble code that indicates: Wiper Rear Motor Circuit Failure
What causes a B1839 error code?
The most common causes of B1839 include: Open or short circuit in wiring harness; Rear wiper motor malfunction; Relay or fuse problems; Oxidation of contacts.
How do I fix a B1839 diagnostic trouble code?
To fix B1839: Check the rear wiper fuse and relay. Inspect the wiring harness for damage. Check contacts and connections. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1839?
Limited driving only, diagnose soon
How much does it cost to fix B1839?
The estimated repair cost for B1839 is $22–89. Actual cost depends on your vehicle, location, and labor rates.
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