P0EBAA/C Compressor Motor Phase W Current Sensor Range/Performance
- Generic OBD-II code · Powertrain
- How the car detects it
- P0EBA covers an implausible phase W current reading in an electric A/C compressor: the signal stays in range, yet it does not agree with the commanded current, the rotor position or the two other phases. No manufacturer documents P0EBA publicly. GM's 2011 Volt used a standstill check for sensor offsets on phase W, filed under the older codes P0D7E and P0D7F at plus or minus 68 A, 30 of 60 samples, Type B. In practice an ageing current sensor or a fault on the inverter board is behind it, and since both live inside the compressor, the assembly is replaced after the high-voltage system has been made safe and the connectors have been inspected. The compressor may run unevenly before the controller cuts it out. Electrical faults of phase W: P0EB8, P0EB9 and P0EC0.
- What you may notice
- Compressor runs unevenly, then stops
- Cooling capacity drops
- Likely causes
- LikelyAgeing phase W current sensor
- PossibleFault in the W measurement on the inverter board
- RareRotor position estimate disturbed, making the W current look wrong
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.