U185C
Battery Charger Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2 On High Voltage Energy Management CAN Bus
U185C is an OBD-II diagnostic trouble code meaning: Battery Charger Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2 On High Voltage Energy Management CAN Bus. Common causes: broken or damaged can bus wires, poor contact in connectors. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Reduced performance of the hybrid system
- Problem with charging high voltage battery
- System transition to emergency mode
- Error messages on the dashboard
Causes
- Broken or damaged CAN bus wires
- Poor contact in connectors
- Charging module malfunction
- Problems in module power supply
- Software error in one of the modules
How to Fix
- Check the integrity of the high voltage CAN bus
- Inspect connectors and contacts for oxidation
- Check the power supply to the charging module
- Read error codes in other modules
- Update software if necessary
- Repair only from an authorized dealer
Related codes
FAQ
What does the U185C code mean?
U185C is an OBD-II diagnostic trouble code that indicates: Battery Charger Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2 On High Voltage Energy Management CAN Bus
What causes a U185C error code?
The most common causes of U185C include: Broken or damaged CAN bus wires; Poor contact in connectors; Charging module malfunction; Problems in module power supply.
How do I fix a U185C diagnostic trouble code?
To fix U185C: Check the integrity of the high voltage CAN bus. Inspect connectors and contacts for oxidation. Check the power supply to the charging module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U185C?
Limited driving only, diagnose soon
How much does it cost to fix U185C?
The estimated repair cost for U185C is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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