B1157 Honda Code - Gauge Control Module Lost Communication With Multiplex Integrated Control Unit
Quick Answer
The Multiplex Integrated Control Unit (MICU) monitors the Gauge Control Module. Common causes include Faulty Gauge Control Module, Gauge Control Module harness is open or shorted, Gauge Control Module 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
- B1157 Honda indicates Gauge Control Module Lost Communication With Multiplex Integrated Control Unit .
- Common causes
- Common causes include Faulty Gauge Control Module, Gauge Control Module harness is open or shorted, Gauge Control Module 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 B1157 Honda Description
What are the Possible Causes of the DTC B1157 Honda?
- Faulty Gauge Control Module
- Gauge Control Module harness is open or shorted
- Gauge Control Module circuit poor electrical connection
- Faulty Multiplex Integrated Control Unit (MICU)
How to Fix the DTC B1157 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 B1157 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 B1157 Honda Code
1. What are the common symptoms of OBDII code B1157 in a Honda, indicating Gauge Control Module lost communication with Multiplex Integrated Control Unit?
- Common symptoms include malfunctioning gauges on the instrument cluster, illuminated warning lights, and loss of communication with the vehicle's control modules.
2. What are the possible causes of OBDII code B1157 in a Honda?
- Possible causes include a faulty Gauge Control Module, issues with the Multiplex Integrated Control Unit, damaged wiring or connectors, or a communication network fault within the vehicle.
3. How can I diagnose the reason behind OBDII code B1157 in my Honda?
- Diagnosis involves using a diagnostic scan tool to retrieve the specific trouble code, checking the connections and wiring related to the Gauge Control Module and Multiplex Integrated Control Unit, and performing a communication network test.
4. What are some repair tips for fixing OBDII code B1157 in a Honda?
- Repair tips include inspecting and repairing any damaged wiring or connectors, replacing the faulty Gauge Control Module or Multiplex Integrated Control Unit, and ensuring proper communication between control modules.
5. Can OBDII code B1157 in a Honda be cleared/reset without fixing the underlying issue?
- While the code can be cleared/reset temporarily, it is recommended to address the root cause to prevent the issue from recurring and ensure proper functionality of the vehicle's instrument cluster and control modules.
6. Is it safe to continue driving my Honda with OBDII code B1157 present?
- It is generally not recommended to drive the vehicle with unresolved communication issues between the Gauge Control Module and Multiplex Integrated Control Unit, as it can affect the accuracy of gauges and potentially lead to other electrical problems.
7. How much does it typically cost to repair OBDII code B1157 in a Honda at a dealership or auto repair shop?
- Repair costs can vary depending on the specific cause of the issue, but it may involve diagnostic fees, parts replacement costs, and labor charges, which can range from a few hundred to over a thousand dollars.
8. Can I attempt to fix OBDII code B1157 in my Honda myself, or should I seek professional help?
- If you have experience with automotive diagnostics and repair, you may attempt to fix the issue yourself by following service manuals and using proper tools. Otherwise, it is advisable to seek professional help to ensure the problem is properly diagnosed and repaired.
9. Are there any recalls or technical service bulletins related to OBDII code B1157 in Honda vehicles?
- It is recommended to check with Honda dealership or official sources for any recalls or technical service bulletins related to OBDII code B1157 to see if there are known issues or remedies provided by the manufacturer.
10. How can I prevent OBDII code B1157 from occurring in my Honda in the future?
- Regular maintenance, proper handling of electrical components, and timely diagnosis and repair of any communication or module issues can help prevent OBDII code B1157 and similar problems from occurring in your Honda.
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