Powertrain, generic

P0EB0 A/C Compressor Motor Current Sensor Circuit High

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P0EB0 flags a current sensor signal at the top end of its range, beyond what the compressor drive could ever draw. It differs from a genuine overcurrent such as P0D6F, where the measurement is trusted and the motor is overloaded: here the signal itself is suspect, for example after a short to a supply voltage or a failed sensing element. No manufacturer documents P0EB0 publicly. GM's 2011 Volt gives a feel for normal limits: more than 27 A over 30 of 60 samples counts as excessive load there, Type B. CARB demands range checks for inputs that hybrid thermal management relies on. If the reading looks plausible after a restart, a stiff compressor or an overfilled refrigerant circuit should still be ruled out. The low counterpart is P0EAF.

Likely causes

Failed sensing element in the compressor inverter
Current signal shorted to a supply voltage
Real overload from a stiff compressor or excessive refrigerant charge

Symptoms

  • Compressor switches off right after starting
  • No cooling, fault message in the climate display

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–2,500
Time1–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

ac compressor motor current sensorac compressor modulewiring harness

Related codes

P0EAFP0EADP0EAEP0D6F

References: gsi.ext.gm.com, law.cornell.edu.