OBD-II code · Powertrain (generic)
P0E88 Battery Charger B Voltage Sensor Circuit High
The ECM detects a high fault on the battery charger b voltage sensor circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0E88?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to B+
- PossibleOpen sensor
- Less likelyConnector pins corroded - high contact resistance
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
- 1–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Battery Charger B Voltage Sensor, Wiring Harness, Bms
Related codes
- P0E85Battery Charger B Voltage Sensor Circuit
- P0E86Battery Charger B Voltage Sensor Circuit Range/Performance
- P0E87Battery Charger B Voltage Sensor Circuit Low
- P0E89Battery Charger B Voltage Sensor Circuit Intermittent/Erratic
- P0E8ABattery Charger B Current Sensor Circuit
- P0E8BBattery Charger B Current Sensor Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.