B3888
Trailer Right Turn Signal Circuit
B3888 is an OBD-II diagnostic trouble code meaning: Trailer Right Turn Signal Circuit. Common causes: burnt out turn signal lamp, broken or damaged wiring harness. Estimated repair cost: $6–56.
Symptoms
- The right trailer turn signal is flashing at an increased rate
- Trailer right turn signal not working
- Illumination of the malfunction warning lamp on the instrument panel
Causes
- Burnt out turn signal lamp
- Broken or damaged wiring harness
- Oxidation or damage to connectors
- Faulty relay or fuse
- Problems with the control unit
How to Fix
- Check the condition of the right trailer turn signal lamp
- Inspect the wiring harness for damage
- Check connectors for oxidation and tightness
- Check relays and fuses
- Scan the control unit for additional errors
Related codes
Error B3888 by Vehicle Brand
FAQ
What does the B3888 code mean?
B3888 is an OBD-II diagnostic trouble code that indicates: Trailer Right Turn Signal Circuit
What causes a B3888 error code?
The most common causes of B3888 include: Burnt out turn signal lamp; Broken or damaged wiring harness; Oxidation or damage to connectors; Faulty relay or fuse.
How do I fix a B3888 diagnostic trouble code?
To fix B3888: Check the condition of the right trailer turn signal lamp. Inspect the wiring harness for damage. Check connectors for oxidation and tightness. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3888?
Limited driving only, diagnose soon
How much does it cost to fix B3888?
The estimated repair cost for B3888 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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