B2339
Mirror Switch Assembly Circuit Short to Ground
B2339 is an OBD-II diagnostic trouble code meaning: Mirror Switch Assembly Circuit Short to Ground. Common causes: wiring harness damage, malfunction of the mirror switch unit. Estimated repair cost: $6–56.
Symptoms
- Mirrors don't work
- Mirrors work unpredictably
- Flashing or unstable switch illumination
Causes
- Wiring harness damage
- Malfunction of the mirror switch unit
- Grounding problems
- Corrosion of connectors
How to Fix
- Check the integrity of the wiring harness
- Inspect connectors for corrosion
- Check the operation of the mirror switch unit
- Make sure the grounding circuit is working properly
- Replace faulty components
Related codes
FAQ
What does the B2339 code mean?
B2339 is an OBD-II diagnostic trouble code that indicates: Mirror Switch Assembly Circuit Short to Ground
What causes a B2339 error code?
The most common causes of B2339 include: Wiring harness damage; Malfunction of the mirror switch unit; Grounding problems; Corrosion of connectors.
How do I fix a B2339 diagnostic trouble code?
To fix B2339: Check the integrity of the wiring harness. Inspect connectors for corrosion. Check the operation of the mirror switch unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2339?
Limited driving only, diagnose soon
How much does it cost to fix B2339?
The estimated repair cost for B2339 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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