U019B

Lost Communication With Battery Charger Control Module A

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

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

U019A U019C U019D