P0EAD covers the current sensor of an electric A/C compressor, which measures how much current the motor drive takes from the high-voltage link. The controller needs this value to limit power and to shield the power stage and the high-voltage pack from overload. P0EAD is the general circuit code: the reading is absent or useless as a whole, with no low, high or plausibility verdict. Only Audi documents a sibling publicly (P0EAE on the 2016 A3 e-tron); P0EAD itself appears in no manufacturer source. GM's 2011 Volt shows how the measured value is used: above 27 A in 30 of 60 samples while the motor runs gives P0D6F, Type B. Because the sensor sits inside the compressor's power module, repair normally means the compressor assembly. Specific faults are P0EAE to P0EB0.
Low severity. Can I keep driving?Yes, you can keep driving. The air conditioning may not work.
Symptoms
- Compressor does not start, no cooling
- Fault stored in the climate or compressor module
Most likely causes
- Failed current sensing element in the compressor power module
- Open internal connection between sensor and control board
- Compressor or climate module software error
What to check, in order
Start with the simplest. You can tick off each step.
What each character of P0EAD means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- E: Subsystem depends on the code range
- AD: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0EAD?
Yes, you can keep driving. The air conditioning may not work.
What causes code P0EAD?
The most common causes are: failed current sensing element in the compressor power module; open internal connection between sensor and control board; compressor or climate module software error.
Related codes
- P0EAEA/C Compressor Motor Current Sensor Range/Performance
- P0EAFA/C Compressor Motor Current Sensor Circuit Low
- P0EB0A/C Compressor Motor Current Sensor Circuit High
- P0D6FA/C Compressor Motor Current High
Sources
- law.cornell.edu: 13 CCR 1968.2
- gsi.ext.gm.com: 11OBDG01 HYBRID Diagnostics
- static.nhtsa.gov: MC 10127742 9999
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.