P0AED code meaning
Drive Motor Inverter Temperature Sensor A Circuit
Powertrain system Generic code P0Axx codes Check engine light
What P0AED means
The inverter of an electric drive motor carries thermistors near its power switches so the controller can derate before the IGBTs overheat. In GM's hybrid tables, inverter temperature sensor A is the phase U sensor of the inverter for motor A. P0AED is the general circuit code for it, used for an electrical fault that is not classified as low, high or erratic. No manufacturer documents this exact code publicly; GM reports the specific siblings P0AEE, P0AEF and P0AF0 instead. CARB requires monitoring of hybrid components and their sensors for circuit faults. Without a valid inverter temperature the controller has to assume the worst and usually limits motor torque. The sensor is built into the power inverter module, so repair often means replacing that unit.
P0AED at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 6 hours
- Clears after repairAfter a drive cycle
Symptoms of P0AED
- Hybrid system warning or check engine lamp
- Reduced electric drive power
- Possible loss of electric drive
Common causes of P0AED
- Most likelyInternal fault of the sensor inside the power inverter module
- PossibleCorroded or loose connector at the inverter module
- Less likelySoftware fault in the motor control processor
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor inverter temp sensor aHybrid control moduleWiring harness
What each part of P0AED 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. |
| ED | The exact fault in that area. |
What to do next
- Note P0AED 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 P0AED
What does P0AED mean?
P0AED means "Drive Motor Inverter Temperature Sensor A Circuit". The inverter of an electric drive motor carries thermistors near its power switches so the controller can derate before the IGBTs overheat. It is a generic code, so it means the same on every make.
Is it safe to drive with P0AED?
Drive gently and only to a workshop. With P0AED the car can go into limp mode (reduced power) to protect itself.
Will P0AED fail an emissions test?
Yes, it can. P0AED 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 P0AED to fix?
Difficulty: workshop only. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P0AED clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.