P0EC6

A/C Power Supply Relay Control Circuit/Open

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–28 (est.)

Symptoms

Air conditioner won't turn on
Lack of cold air in the cabin
Malfunction indicator on the instrument panel
Increased fan noise
Unstable operation of the climate control system

Causes

Open circuit in the relay control circuit
Faulty A/C relay
Problems with the control unit
Short circuit in wiring
Oxidation of relay contacts

How to Fix

Check the integrity of the relay control circuit
Replace the air conditioning relay if necessary
Check the control unit for errors
Clean or replace oxidized contacts
Check wiring for short circuit

Related codes

P0EC5 P0EC7 P0EC8