P0AEFDrive Motor Inverter Temperature Sensor A Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0AEF means the signal of inverter temperature sensor A is below its valid range. GM describes it as an NTC thermistor with a pull-up on the sensing board, so a low voltage reads as an impossibly hot inverter, usually a short to ground or an internal sensor fault. GM's thresholds: above 170 °C for 2.5 of 3.5 s, Type B, in the 2016 to 2019 hybrid tables; above 159 °C, Type A, one trip, in another 2019 table; above 150 °C on eAssist; above 130 °C, Type A, on the 2011 Volt; above 125 °C, Type B, on the 2011 and 2013 two-mode trucks. Stellantis lists P0AEF-11 for the 2026 Jeep Compass PHEV outside the US among codes behind an Electric Traction System Fault and a no-start, repaired by replacing the inverter.
- What you may notice
- Malfunction indicator lamp and hybrid warning
- Electric drive power cut back strongly
- Vehicle may not start (Jeep Compass PHEV)
- Likely causes
- LikelyShorted sensor or circuit inside the power inverter module
- PossibleSensor signal shorted to ground in external wiring, where present
- RareMoisture or coolant inside the inverter housing
- 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: €300 – €5,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.