P0EC8
A/C Power Supply Relay Control Circuit High
P0EC8 is an OBD-II diagnostic trouble code meaning: A/C Power Supply Relay Control Circuit High. Common causes: faulty a/c relay, short circuit in control circuit. Estimated repair cost: $6–28.
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
Error P0EC8 by Vehicle Brand
FAQ
What does the P0EC8 code mean?
P0EC8 is an OBD-II diagnostic trouble code that indicates: A/C Power Supply Relay Control Circuit High
What causes a P0EC8 error code?
The most common causes of P0EC8 include: Faulty A/C relay; Short circuit in control circuit; Wiring harness damage; Problems with the control unit.
How do I fix a P0EC8 diagnostic trouble code?
To fix P0EC8: Check the air conditioner relay. Diagnose the control circuit for a short circuit. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0EC8?
Yes, but get it checked soon
How much does it cost to fix P0EC8?
The estimated repair cost for P0EC8 is $6–28. Actual cost depends on your vehicle, location, and labor rates.
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