OBD-II code · Powertrain (generic)
P0A34 Drive Motor B Temperature Sensor Circuit Intermittent
The ECM detects a circuit intermittent fault on the drive motor b temperature sensor. Reading cannot be used reliably for control.
Is it safe to drive with P0A34?
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
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Drive Motor B Temp Sensor, Wiring Harness, Hybrid Control Module
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.