OBD-II code · Powertrain (generic)
P0D31 Drive Motor A Inverter Voltage Sensor A Circuit Intermittent/Erratic
The ECM detects a intermittent/erratic fault on the drive motor a inverter voltage sensor a circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0D31?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor connector not seated
- PossibleNoisy ground reference
- Less likelyConnector with intermittent contact under vibration
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–7 h
- Emissions test
- Usually unaffected
- Parts involved
- Drive Motor A Inverter Voltage Sensor A, Wiring Harness, Hybrid Control Module
Related codes
- P0DA7Drive Motor B Inverter Voltage Sensor A Circuit Intermittent/Erratic
- P0E93Drive Motor A Inverter Voltage Sensor B Circuit Intermittent/Erratic
- P0E98Drive Motor B Inverter Voltage Sensor B Circuit Intermittent/Erratic
- P0D2EDrive Motor A Inverter Voltage Sensor A Circuit Range/Performance
- P0D2FDrive Motor A Inverter Voltage Sensor A Circuit Low
- P0D30Drive Motor A Inverter Voltage Sensor A Circuit High
- P0D32DC/DC Converter A Over Temperature
- P0D33DC/DC Converter Current High
- P0D34Hybrid/EV Battery System Current
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.