Battery Charger System Precharge Time Too Long
The battery charger system precharge time exceeds the calibrated maximum. Indicates high resistance, capacitor degradation, or weak contactor.
Affected components
- Battery charger precharge circuit
- Dc link capacitor
Common causes
- High likelihood: Increased resistance in precharge path
- Medium likelihood: Capacitor 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
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.