P01E8
Engine Coolant Heater A Control Circuit/Open
P01E8 is an OBD-II diagnostic trouble code meaning: Engine Coolant Heater A Control Circuit/Open. Common causes: broken or damaged wiring, faulty heater relay. Estimated repair cost: $56–167.
Symptoms
- Poor engine performance in cold weather
- Extended engine warm-up time
- Check Engine Light Illuminates
Causes
- Broken or damaged wiring
- Faulty heater relay
- Malfunction of the coolant heater itself
- Problems with the engine control unit
How to Fix
- Check the integrity of wiring and connectors
- Check heater relay
- Check heater resistance
- If necessary, replace faulty components
Related codes
Error P01E8 by Vehicle Brand
FAQ
What does the P01E8 code mean?
P01E8 is an OBD-II diagnostic trouble code that indicates: Engine Coolant Heater A Control Circuit/Open
What causes a P01E8 error code?
The most common causes of P01E8 include: Broken or damaged wiring; Faulty heater relay; Malfunction of the coolant heater itself; Problems with the engine control unit.
How do I fix a P01E8 diagnostic trouble code?
To fix P01E8: Check the integrity of wiring and connectors. Check heater relay. Check heater resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P01E8?
Limited driving only, diagnose soon
How much does it cost to fix P01E8?
The estimated repair cost for P01E8 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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