P0A2BDrive Motor A Temperature Sensor A Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- This is the rationality check: after a long soak, motor A's temperature should match other temperatures in the drive. GM compares it with the average inverter module temperature on its 2013 two-mode trucks and sets P0A2B, Type B, if they differ by more than 28 °C after at least 360 minutes off; the 2011 table uses 20 °C against coolant and transmission fluid, the 2013 MGU mild hybrid 25 °C. Hyundai's Sonata Hybrid bulletin lists the code with resistance specs for the NTC; Audi pairs it on the A7 e quattro with P0A2E and a worn connector. McLaren also files over-temperature under P0A2B98. P0A2C/P0A2D are hard electrical faults, P0A2F real heat. Expect reduced electric power.
- What you may notice
- Hybrid system warning or check engine light
- Electric drive power limited
- Motor temperature far off from other temperatures after a cold soak
- Likely causes
- LikelyThermistor drifted out of its resistance curve
- PossibleAdded resistance from a worn or corroded connector (Audi A7 e quattro)
- RareFault in a reference temperature such as inverter or fluid temperature
- RareMotor cooling problem that makes a real temperature look implausible
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.