OBD-II code · Powertrain (generic)
P0D42 Battery Charger 14 Volt Output Voltage Sensor Circuit
The ECM detects a circuit fault on the battery charger 14 volt output voltage sensor circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0D42?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor failed
- PossibleWiring or connector fault
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Battery Charger 14v Output Voltage Sensor, Wiring Harness, Bms
Related codes
- P0D3FBattery Charger A Input Voltage Sensor A Circuit Low
- P0D40Battery Charger A Input Voltage Sensor A Circuit High
- P0D41Battery Charger A Input Voltage Sensor A Circuit Intermittent/Erratic
- P0D43Battery Charger 14 Volt Output Voltage Sensor Circuit Range/Performance
- P0D44Battery Charger 14 Volt Output Voltage Sensor Circuit Low
- P0D45Battery Charger 14 Volt Output Voltage Sensor Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.