P0A2D code meaning
Drive Motor A Temperature Sensor A Circuit High
Powertrain system Generic code P0Axx codes Check engine light
What P0A2D means
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.
P0A2D at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 12 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0A2D
- Hybrid system warning or check engine light
- Motor temperature shows about -40 degrees in live data
- Electric drive power limited
Common causes of P0A2D
- Most 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
- Less likelySignal wire shorted to a supply voltage
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor aMotor temperature sensor
What each part of P0A2D means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| A | Area: hybrid propulsion. |
| 2D | The exact fault in that area. |
What to do next
- Note P0A2D and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0A2D
What does P0A2D mean?
P0A2D means "Drive Motor A Temperature Sensor A Circuit High". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P0A2D?
Drive gently and only to a workshop. With P0A2D the car can go into limp mode (reduced power) to protect itself.
Will P0A2D fail an emissions test?
Yes, it can. P0A2D is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0A2D to fix?
Difficulty: workshop only. A typical repair takes 1 to 12 hours of work. This is a job for a workshop.
Will P0A2D clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.