P0A2DDrive Motor A Temperature Sensor A Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- With an NTC thermistor, a high signal voltage stands for a cold motor, and a voltage close to the 5 V pull-up means the circuit is open. GM sets P0A2D on its 2013 two-mode trucks when the reading falls below -40 °C, Type B over two trips; if the fault is already present at start-up it waits until the motor has warmed up under load for at least 1.5 minutes. The 2011 table uses -41 °C, the 2013 MGU mild hybrid -48 °C with torque above 10 Nm. Typical causes are a broken signal or ground wire, an unplugged connector or an open sensor. Hyundai checks the sensor resistance at the transaxle connector. P0A2C is the low-voltage counterpart. Motor protection is lost, so electric power is limited.
- What you may notice
- Hybrid system warning or check engine light
- Motor temperature shows about -40 degrees in live data
- Electric drive power limited
- Likely causes
- LikelyOpen signal or ground wire of the motor temperature sensor
- PossibleConnector unplugged or terminal pushed out, often after drive unit work
- PossibleThermistor open inside the motor or transaxle
- RareSignal wire shorted to a supply voltage
- 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: €100 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.