U185A GMC Code - Lost Communication With Battery Energy Control Module On High Voltage Energy Management CAN Bus
Quick Answer
Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Battery Energy Control Module, Battery Energy Control Module harness is open or shorted, Battery Energy 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
- U185A GMC indicates Lost Communication With Battery Energy Control Module On High Voltage Energy Management CAN Bus.
- Common causes
- Common causes include Faulty Battery Energy Control Module, Battery Energy Control Module harness is open or shorted, Battery Energy 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 U185A GMC Description
What are the Possible Causes of the DTC U185A GMC?
- Faulty Battery Energy Control Module
- Battery Energy Control Module harness is open or shorted
- Battery Energy Control Module circuit poor electrical connection
How to Fix the DTC U185A GMC?
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 U185A GMC 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 U185A GMC Code
1. What are common symptoms of OBDII code U185A in a GMC related to the battery energy control module?
- Common symptoms include loss of power steering, regenerative braking failure, and illumination of the hybrid system warning light.
2. What can cause the OBDII code U185A (Lost Communication With Battery Energy Control Module) in a GMC?
- The code can be triggered by issues such as a faulty battery energy control module, damaged wiring harness, or a communication network malfunction.
3. How can I diagnose the U185A code in my GMC related to the high voltage energy management CAN bus?
- A thorough diagnostic scan using an OBDII scanner capable of reading hybrid system codes is recommended to pinpoint the exact cause of the communication loss.
4. Is it safe to continue driving my GMC with the U185A code present?
- It is not recommended to drive the vehicle with the U185A code, as it may lead to further damage to the high voltage energy management system.
5. What are some repair tips for resolving the U185A code in a GMC?
- Repair tips may include checking and repairing any damaged wiring, replacing the battery energy control module if necessary, and ensuring proper connections in the CAN bus network.
6. Can a DIY enthusiast fix the U185A code issue in a GMC, or is professional help required?
- While some basic checks like inspecting wiring connections can be done by a DIY enthusiast, resolving complex issues related to the high voltage energy management system may require professional help.
7. How much does it typically cost to repair the U185A code in a GMC at a dealership or auto repair shop?
- The cost of repair can vary depending on the exact cause of the code, but it may range from a few hundred to a couple of thousand dollars, including parts and labor.
8. Are there any preventive maintenance measures to avoid encountering the U185A code in a GMC?
- Regularly inspecting the high voltage energy management system, maintaining proper battery health, and addressing any warning lights promptly can help prevent issues leading to the U185A code.
9. Can a weak or failing hybrid battery cause the U185A code to appear in a GMC?
- Yes, a weak or failing hybrid battery can contribute to communication issues with the battery energy control module, triggering the U185A code.
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