OBD-II code · Powertrain (generic)
P0A00 Motor Electronics Coolant Temperature Sensor Circuit
The hybrid control module detects an out-of-range signal from the temperature sensor of the inverter/motor electronics coolant loop. This sensor protects power electronics from overheating.
Is it safe to drive with P0A00?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyTemperature sensor failed
- PossibleWiring or connector fault
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, Hybrid Inverter, Wiring Harness
Related codes
- P09A7Gate Select Position Circuit C Range/Performance
- P09A8Gate Select Position Circuit C Low
- P09A9Gate Select Position Circuit C High
- P0A01Motor Electronics Coolant Temperature Sensor Range/Performance
- P0A02Motor Electronics Coolant Temperature Sensor Low Input
- P0A03Motor Electronics Coolant Temperature Sensor High Input
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.