P0EAFA/C Compressor Motor Current Sensor Circuit Low
- Generic OBD-II code · Powertrain
- How the car detects it
- P0EAF reports that the compressor current signal sits at the bottom of its measuring range. In a running compressor this cannot be true, so the module suspects the measuring chain: a grounded signal path, a sensing chip without supply or an offset error inside the power module. No manufacturer documents P0EAF publicly. GM's 2011 Volt supervises the measured current only against upper limits (27 A over 30 of 60 samples for P0D6F, 60 A on a single sample for a maker code), and Audi documents only the plausibility sibling P0EAE. Without a valid current value the controller cannot protect the inverter, so it shuts the compressor down. Air conditioning stops working while the car itself remains fully drivable. The high counterpart is P0EB0.
- What you may notice
- Compressor shut down, warm air from the vents
- Climate system fault message
- Likely causes
- PossibleCurrent signal path shorted to ground
- PossibleCurrent sensor without supply voltage
- PossibleOffset error of the measurement in the power module
- Repair
- Workshop only · 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.