P0EC8

A/C Power Supply Relay Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–28 (est.)

Symptoms

Air conditioner won't turn on
Unstable operation of the air conditioner
Hot air from vents
Check Engine light comes on
Reduced cooling efficiency

Causes

Faulty A/C relay
Short circuit in control circuit
Wiring harness damage
Problems with the control unit
Corrosion of relay contacts

How to Fix

Check the air conditioner relay
Diagnose the control circuit for a short circuit
Inspect the wiring harness for damage
Check relay contacts for corrosion
If necessary, replace the relay or repair the wiring

Related codes

P0EC7 P0EC9 P0ECA