OBD-II code · Powertrain (generic)
P063F Auto Configuration Engine Coolant Temperature Input Not Present
Auto Configuration Engine Coolant Temperature Input Not Present: the control module has detected this fault condition.
Is it safe to drive with P063F?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyECT input wiring missing
Symptoms
- Check engine light on
- Cooling fan runs constantly or not at all
- Cabin heater weak or excessively hot
- Possible long warm-up time or hard cold start
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–3 h
- Emissions test
- Likely to fail
- Parts involved
- Coolant Temperature Sensor, Vehicle Configuration
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.