Battery Charger B Voltage Sensor Circuit Range/Performance
The ECM detects a range/performance fault on the battery charger b voltage sensor circuit. Reading cannot be used reliably for control.
Affected components
- Battery charger b voltage sensor
- Wiring harness
- Bms
Common causes
- High likelihood: Sensor characteristic drifted
- Medium likelihood: Sensor mounting displaced
- Low likelihood: Sensor element aged beyond calibration window
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.