B3887 Chevrolet Code - Trailer Left Turn Signal Circuit
Quick Answer
The Trailer Lighting Control Module receives a serial data message from the Body Control Module (BCM) indicating that the vehicle left or right turn signal lamp has been activated. Common causes include Faulty Trailer Left Turn Signal, Trailer Left Turn Signal harness is open or shorted, Trailer Left Turn Signal circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B3887 Chevrolet indicates Trailer Left Turn Signal Circuit.
- Common causes
- Common causes include Faulty Trailer Left Turn Signal, Trailer Left Turn Signal harness is open or shorted, Trailer Left Turn Signal circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B3887 Chevrolet Description
What are the Possible Causes of the DTC B3887 Chevrolet?
- Faulty Trailer Left Turn Signal
- Trailer Left Turn Signal harness is open or shorted
- Trailer Left Turn Signal circuit poor electrical connection
- Faulty Trailer Lighting Control Module
How to Fix the DTC B3887 Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
B3887 04 Trailer Left Turn Signal Circuit Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B3887 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the B3887 Chevrolet code?
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Frequently Asked Questions about B3887 Chevrolet Code
1. What are common symptoms of OBDII code B3887 in a Chevrolet related to the Trailer Left Turn Signal Circuit?
- Common symptoms include the trailer left turn signal not functioning properly or not working at all when activated.
2. What are some possible causes of OBDII code B3887 in a Chevrolet?
- Possible causes may include a faulty trailer left turn signal lamp, damaged wiring or connectors, a blown fuse, or a defective trailer light control module.
3. How can I diagnose the issue related to OBDII code B3887 in a Chevrolet?
- You can start by visually inspecting the trailer left turn signal lamp, checking the wiring and connectors for damage, testing the fuse related to the circuit, and using a diagnostic tool to scan for any fault codes.
4. Can a DIY enthusiast repair OBDII code B3887 in a Chevrolet?
- Depending on the cause of the issue, some repairs related to the Trailer Left Turn Signal Circuit can be performed by a DIY enthusiast, such as replacing a faulty lamp or a blown fuse. However, more complex issues may require professional assistance.
5. Is it safe to drive with OBDII code B3887 triggered in a Chevrolet?
- It is not recommended to drive with the Trailer Left Turn Signal Circuit malfunctioning, as it can pose a safety hazard by affecting the visibility of your intentions to other drivers on the road.
6. How much does it typically cost to repair OBDII code B3887 in a Chevrolet?
- The cost of repairing OBDII code B3887 can vary depending on the specific cause of the issue. Simple fixes like replacing a lamp or a fuse may be relatively inexpensive, while more complex repairs involving wiring or module replacement can be more costly.
7. Are there any preventive measures to avoid triggering OBDII code B3887 in a Chevrolet?
- Regularly inspecting and maintaining the trailer left turn signal system, including checking the lamps, wiring, and connectors for any signs of wear or damage, can help prevent issues that may lead to triggering OBDII code B3887.
8. Can weather conditions affect the trailer left turn signal circuit and trigger OBDII code B3887 in a Chevrolet?
- Yes, extreme weather conditions like heavy rain, snow, or exposure to moisture can potentially damage the trailer left turn signal components, leading to issues that trigger OBDII code B3887.
9. How long does it typically take to repair OBDII code B3887 related to the Trailer Left Turn Signal Circuit in a Chevrolet?
- The repair time can vary depending on the specific cause of the issue and the complexity of the repair. Simple fixes may take a short amount of time, while more involved repairs may require additional time for diagnosis and part replacement.
10. Can OBDII code B3887 in a Chevrolet be intermittent or constant?
- The code can appear intermittently if the issue is intermittent, such as a loose connection, or it can be constant if there is a persistent fault in the Trailer Left Turn Signal Circuit.
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