P0EA9

A/C Compressor Motor Voltage Sensor B Circuit Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Air conditioner doesn't work
Air conditioner malfunction
Check Engine light comes on
Increased noise from the compressor
Reduced cooling efficiency

Causes

Open or short circuit in the sensor circuit
Poor contact in connectors
Voltage sensor fault
Problems with the compressor control module
Contact corrosion

How to Fix

Check the integrity of wiring and connectors
Test the voltage sensor
Check the operation of the compressor control module
Replace faulty sensor or wiring
Clean contacts from corrosion

Related codes

P0EAA P0EAB P0EAC