B1C55 Code - Horn Relay Circuit
Quick Answer
The Body Control Module (BCM) monitors the Horn Relay Circuit. Common causes include Faulty Horn Relay, Horn Relay harness is open or shorted, Horn Relay 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
- B1C55 indicates Horn Relay Circuit.
- Common causes
- Common causes include Faulty Horn Relay, Horn Relay harness is open or shorted, Horn Relay 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 B1C55 Description
What are the Possible Causes of the DTC B1C55?
- Faulty Horn Relay
- Horn Relay harness is open or shorted
- Horn Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1C55?
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
B1C55:13 Horn Relay Circuit Open
B1C55:19 Horn Relay Circuit Current Above Threshold
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1C55 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.
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Information for Specific Makes
- B1C55 Ford — Horn Relay Circuit
- B1C55 Lincoln — Horn Relay Circuit
- B1C55 Mercury — Horn Relay Circuit
Frequently Asked Questions about B1C55 Code
1. What are the common symptoms of OBDII code B1C55 (Horn Relay Circuit)?
- Common symptoms include the horn not working, the horn going off randomly, or the horn being stuck in the "on" position.
2. What are the possible causes of OBDII code B1C55 (Horn Relay Circuit)?
- Possible causes include a faulty horn relay, a short or open circuit in the horn wiring, a malfunctioning horn switch, or a blown fuse.
3. How can I diagnose the issue related to OBDII code B1C55 (Horn Relay Circuit)?
- You can start by checking the horn fuse, testing the horn relay, inspecting the horn wiring for any damage, and ensuring the horn switch is functioning properly.
4. Can I repair OBDII code B1C55 (Horn Relay Circuit) on my own?
- Depending on your automotive knowledge and skills, you may be able to repair this issue on your own by replacing the faulty horn relay, fixing wiring issues, or replacing the horn switch.
5. Is it safe to continue driving with OBDII code B1C55 (Horn Relay Circuit) triggered?
- It is generally safe to continue driving with this code, but it is important to address the horn issue promptly for safety reasons, as the horn is an essential safety feature of your vehicle.
6. Are there any tips for preventing OBDII code B1C55 (Horn Relay Circuit) from recurring?
- Regularly inspecting and maintaining your vehicle's horn system, including checking the horn relay, wiring, and switch, can help prevent this code from recurring.
7. How much does it typically cost to repair OBDII code B1C55 (Horn Relay Circuit)?
- The cost of repairing this code can vary depending on the specific issue causing it, but it may range from $50 to $200 for parts and labor.
8. Can a mechanic easily reset OBDII code B1C55 (Horn Relay Circuit) after repairing the issue?
- Once the underlying issue causing the code is fixed, a mechanic can reset the code using an OBDII scanner to clear the error code from the vehicle's system.
9. Does OBDII code B1C55 (Horn Relay Circuit) affect the vehicle's overall performance?
- This code typically does not affect the vehicle's performance, but it is important to address it to ensure the proper functioning of the horn system.
10. How long does it usually take to repair OBDII code B1C55 (Horn Relay Circuit)?
- The repair time can vary depending on the complexity of the issue, but in most cases, fixing the horn relay circuit can be done within an hour to a few hours at a repair shop.
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