P0A7CMotor Electronics Over Temperature
- Generic OBD-II code · Powertrain
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0A7C reports that the electronics controlling the hybrid motors, mainly the inverter, have run hotter than allowed. Ford uses the code on its hybrids and stores it in the PCM. A Ford bulletin for 2010-11 Fusion and Milan Hybrid and 2011 MKZ Hybrid built up to 9 September 2010 describes a wrench light with no drivability concern and P0A7C, cured by a PCM software update. Ford warranty statistics supplied to NHTSA list P0A7C as a recurring code on 2010-12 Escape, Tribute and Mariner Hybrid. Common physical causes are a failed coolant pump of the motor electronics cooling loop, low coolant, air in the loop or a blocked radiator. CARB requires monitoring of inverter thermal management. P0A3C and P0A3D cover the individual inverters. Power is reduced to protect the electronics.
- What you may notice
- Wrench or hybrid warning light
- Reduced power, especially under high load or heat
- Likely causes
- LikelyCoolant pump of the motor electronics cooling loop failed
- PossibleLow coolant or air in the electronics cooling loop
- PossiblePCM calibration triggering the code without real overheating (Ford Fusion Hybrid)
- RareBlocked electronics radiator or faulty cooling fan
- Inspection (ITP)
- Can matter for the ITP: it concerns the emissions system.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.