P1285
Cylinder Head Over Temperature Condition
Severity
🔴 HighCan you drive?
Do not drive — repair immediately
Approx. repair cost
$6–56 (est.)
Symptoms
- Engine overheating
- Reduced engine power
- Steam from under the hood
- Unstable engine operation
- Check engine light comes on
Causes
- Low coolant level
- Thermostat malfunction
- Clogged radiator
- Water pump malfunction
- Problems with the head temperature sensor
How to Fix
- Check coolant level
- Check thermostat operation
- Clean or replace the radiator
- Check the functionality of the water pump
- Check the head temperature sensor