Battery Charger Control Module B Performance
The battery charger control module B reports a performance fault. Internal self-tests fail or response time outside calibration.
Affected components
- Battery charger cm b
- Bms
Common causes
- High likelihood: Internal module fault
- Medium likelihood: Communication with BMS degraded
Possible symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.