OBD-II code · Powertrain (generic)
P0A01 Motor Electronics Coolant Temperature Sensor Range/Performance
The motor electronics coolant temperature sensor reading is implausible relative to other thermal models or coolant flow estimates.
Is it safe to drive with P0A01?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor drift
- PossibleLow coolant flow
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Shop_only
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Motor Electronics Coolant Temperature Sensor, Electric Coolant Pump
Related codes
- P09A8Gate Select Position Circuit C Low
- P09A9Gate Select Position Circuit C High
- P0A00Motor Electronics Coolant Temperature Sensor Circuit
- P0A02Motor Electronics Coolant Temperature Sensor Low Input
- P0A03Motor Electronics Coolant Temperature Sensor High Input
- P0A04Motor Electronics Coolant Temperature Sensor A Circuit Intermittent
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.