OBD Guide

P0EAF

A/C Compressor Motor Current Sensor Circuit Low

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$28–94 (est.)

Symptoms

  • Air conditioner does not turn on or does not cool
  • Periodic operation of the air conditioning system
  • Check Engine light comes on
  • Reduced performance of the air conditioning system
  • The compressor may not start

Causes

  • Open or short circuit in the current sensor wiring
  • Faulty compressor current sensor
  • Poor contacts in sensor circuit connectors
  • Problems with power or grounding of the sensor
  • Compressor control module malfunction

How to Fix

  1. Visual inspection of wiring and connectors for damage
  2. Checking the supply voltage and ground of the current sensor
  3. Measuring resistance and checking the current sensor signal
  4. Replacing a faulty compressor current sensor
  5. Diagnostics and, if necessary, replacement of the compressor control module

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Error P0EAF by Vehicle Brand