U019B
Lost Communication With Battery Charger Control Module A
U019B is an OBD-II diagnostic trouble code meaning: Lost Communication With Battery Charger Control Module A. Common causes: open or short circuit in the can bus, problems with power supply to the charging module. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Problems with charging a high-voltage battery
- Reduced hybrid system efficiency
- Error message on the dashboard
- Extended charging time
Causes
- Open or short circuit in the CAN bus
- Problems with power supply to the charging module
- Malfunction of the charging control module itself
- Wiring harness damage
- Software problems
How to Fix
- Check the integrity of the CAN bus
- Diagnose the power supply of the charging module
- Check the condition of the connectors and wiring harness
- Test the charging control module
- Update software if necessary
Related codes
Error U019B by Vehicle Brand
FAQ
What does the U019B code mean?
U019B is an OBD-II diagnostic trouble code that indicates: Lost Communication With Battery Charger Control Module A
What causes a U019B error code?
The most common causes of U019B include: Open or short circuit in the CAN bus; Problems with power supply to the charging module; Malfunction of the charging control module itself; Wiring harness damage.
How do I fix a U019B diagnostic trouble code?
To fix U019B: Check the integrity of the CAN bus. Diagnose the power supply of the charging module. Check the condition of the connectors and wiring harness. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U019B?
Limited driving only, diagnose soon
How much does it cost to fix U019B?
The estimated repair cost for U019B is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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