P0A1EStarter/Generator Control Module
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- Mild and full hybrids often start the engine and recharge the battery with a belt-driven starter-generator that has its own control electronics. P0A1E means that controller has reported a fault or works incorrectly. Audi stores P0A1E00 in the starter-generator control module of the 2020-2022 Q3 mild hybrid and cures it with a software update. Ford logs P0A1E in the engine control module of 2021-2023 F-150 PowerBoost and 2020-2026 Explorer and 2020-2023 Aviator hybrids; its bulletins name a loose connection at the belt integrated starter-generator or its software. Drivers notice a wrench or MIL lamp, no start-stop and no electric-only driving.
- What you may notice
- Wrench lamp or MIL on, electrical system warning
- Auto start-stop disabled
- Electric-only driving unavailable
- Likely causes
- LikelyLoose wiring connection at the starter-generator
- LikelyStarter-generator software fault, fixed by update
- PossibleStarter-generator with integrated electronics failed
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.