Battery Charging System Negative Contactor D Stuck Closed
The negative contactor D of the battery charging system reports a stuck closed condition. HV charging path cannot be commanded reliably.
Affected components
- Bcs neg contactor d
- Wiring harness
- Bms
Common causes
- High likelihood: Contactor contacts welded closed
- Medium likelihood: Output driver stuck on
- Low likelihood: Carbon or debris buildup preventing free movement
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.