P00CEIntake Air Temperature Measurement System - Multiple Sensor Correlation Bank 1
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- After a long standstill (six hours in a documented case) all intake air temperature sensors, for example intake air, charge air cooler and manifold temperature, should read about the same. The control module compares them in pairs: if one sensor stands out, it sets that sensor's own plausibility code. This code is set when no pair agrees, so no single sensor can be identified as faulty. A detected engine preheater suspends the test. Since it runs only after a long standstill, the code may take a night to return after being cleared. Some vehicles also disable start-stop while this code is stored.
- What you may notice
- Check engine light on
- Start-stop disabled on some vehicles
- Usually no drivability symptoms
- Likely causes
- PossibleOne temperature sensor drifting without setting its own code
- PossibleUneven cooling, undetected preheater or strong sunshine
- PossibleShared ground or reference line disturbed, falsifying several sensors
- RareEngine control module or software
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €50 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.