Battery Charger Control Module B Processor Performance
The battery charger control module B reports a processor performance fault. CPU watchdog or RAM check failed.
Affected components
- Battery charger cm b
Common causes
- High likelihood: CPU watchdog repeatedly resets
- Medium likelihood: RAM check failed
- Low likelihood: Module software outdated, reflash may resolve
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.