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.
General code reference. Confirm the definition and diagnostic procedure for your vehicle's year, model and engine. A stored code alone does not identify a failed part.
Affected components
- Motor electronics coolant temperature sensor
- Electric coolant pump
Possible causes to check
These are possible checks, not a ranked diagnosis. Follow the vehicle manufacturer's test procedure before replacing parts.
- Sensor drift
- Low coolant flow
- Sensor element aged beyond calibration window
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Check each reference's vehicle and model-year scope. General background links do not establish which fault is most likely on your vehicle.
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.