B1255 Honda Code - Combination Switch Control Unit Lost Communication With MICU
Quick Answer
The Multiplex Integrated Control Unit (MICU) monitors the Combination Switch Control Unit. Common causes include Faulty Combination Switch Control Unit, Combination Switch Control Unit harness is open or shorted, Combination Switch Control Unit 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
- B1255 Honda indicates Combination Switch Control Unit Lost Communication With MICU.
- Common causes
- Common causes include Faulty Combination Switch Control Unit, Combination Switch Control Unit harness is open or shorted, Combination Switch Control Unit 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 B1255 Honda Description
What are the Possible Causes of the DTC B1255 Honda?
- Faulty Combination Switch Control Unit
- Combination Switch Control Unit harness is open or shorted
- Combination Switch Control Unit circuit poor electrical connection
- Faulty Multiplex Integrated Control Unit (MICU)
How to Fix the DTC B1255 Honda?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1255 Honda 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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Frequently Asked Questions about B1255 Honda Code
1. What are common symptoms of OBDII code B1255 in a Honda?
Common symptoms include issues with the turn signals, headlights, windshield wipers, and other functions controlled by the combination switch.
2. What does the OBDII code B1255 Honda indicate?
This code indicates that the Combination Switch Control Unit has lost communication with the Multiplex Integrated Control Unit (MICU) in the vehicle.
3. What are possible causes of the Combination Switch Control Unit losing communication with the MICU?
Possible causes include wiring issues, a faulty combination switch control unit, a malfunctioning MICU, or a poor connection between the two units.
4. How can I diagnose the cause of OBDII code B1255 in my Honda?
Diagnosis typically involves checking the wiring connections between the combination switch control unit and MICU, testing the units for functionality, and using a diagnostic scan tool to retrieve specific error codes.
5. Can I repair OBDII code B1255 in my Honda myself?
Depending on your level of automotive expertise, you may be able to address the issue by checking and repairing wiring connections, replacing the combination switch control unit or MICU if necessary, or seeking professional assistance for a more complex diagnosis and repair.
6. Is it safe to continue driving my Honda with OBDII code B1255 present?
It is recommended to address the issue promptly to ensure proper functioning of essential vehicle controls. Driving with this code present may result in the loss of certain functions controlled by the combination switch.
7. How much does it typically cost to repair OBDII code B1255 in a Honda?
The cost of repairs can vary depending on the underlying cause of the communication loss between the combination switch control unit and MICU. Costs may include parts, labor, and diagnostic fees.
8. Are there any preventative measures to avoid encountering OBDII code B1255 in my Honda?
Regular vehicle maintenance, including checking and ensuring proper connections of electrical components, can help prevent issues like communication loss between the combination switch control unit and MICU.
9. Can weather conditions or water damage contribute to OBDII code B1255 in a Honda?
Yes, exposure to moisture or water damage can potentially lead to communication issues between the combination switch control unit and MICU, triggering OBDII code B1255.
10. How long does it typically take to repair OBDII code B1255 in a Honda?
The repair duration can vary based on the specific cause of the communication loss. Simple fixes like checking and reseating connections may take less time, while more complex repairs involving component replacement or wiring troubleshooting may require more time.
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