B3887
Trailer Left Turn Signal Circuit
B3887 is an OBD-II diagnostic trouble code meaning: Trailer Left Turn Signal Circuit. Common causes: broken wire in the left trailer turn signal circuit, short circuit in the circuit. Estimated repair cost: $11–56.
Symptoms
- Left trailer turn signal not working
- Flashing of indicators with increased frequency
- Error message on the dashboard
Causes
- Broken wire in the left trailer turn signal circuit
- Short circuit in the circuit
- Turn signal relay malfunction
- Connector damage or contact corrosion
- Control unit malfunction
How to Fix
- Check the integrity of the wires in the trailer left turn signal circuit
- Check the contacts in the connectors for corrosion or damage.
- Check the operation of the turn signal relay
- Check the serviceability of the turn signal itself
- If necessary, replace damaged circuit elements
Related codes
Error B3887 by Vehicle Brand
FAQ
What does the B3887 code mean?
B3887 is an OBD-II diagnostic trouble code that indicates: Trailer Left Turn Signal Circuit
What causes a B3887 error code?
The most common causes of B3887 include: Broken wire in the left trailer turn signal circuit; Short circuit in the circuit; Turn signal relay malfunction; Connector damage or contact corrosion.
How do I fix a B3887 diagnostic trouble code?
To fix B3887: Check the integrity of the wires in the trailer left turn signal circuit. Check the contacts in the connectors for corrosion or damage.. Check the operation of the turn signal relay. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3887?
Limited driving only, diagnose soon
How much does it cost to fix B3887?
The estimated repair cost for B3887 is $11–56. Actual cost depends on your vehicle, location, and labor rates.
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