P0A2FDrive Motor A Over Temperature
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Unlike its siblings, P0A2F reports a real thermal problem: the sensor works, but motor A stays too hot. GM sets it on 2013 two-mode trucks when the temperature exceeds 200 °C and does not fall below the 135 °C reset level, Type B, provided no circuit or plausibility fault is active. The 2011 table uses 159 °C; on the 2013 MGU mild hybrid the limit is 165 °C, and torque is already cut linearly from 100 % to zero between 155 and 165 °C. Hyundai lists the code in its Sonata Hybrid sensor bulletin, so a skewed sensor can mimic it. McLaren handles over-temperature under P0A2B98 and points to the dielectric cooling circuit. Expect a warning and sharply reduced electric power.
- What you may notice
- Hybrid system or check engine warning
- Electric drive power drops sharply or is cut
- Engine runs more often to support the drive
- Likely causes
- LikelyMotor cooling failure such as a weak pump, low fluid or blocked cooler
- PossibleSustained high load such as towing or long climbs in electric mode
- RareTemperature sensor reading too high while still within range
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €3,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.