OBD-II code · Powertrain (generic, extended)
P2199 Intake Air Temperature Sensor 1/2 Correlation
The two intake air temperature sensors disagree by more than the calibrated correlation threshold during stable conditions. The ECU cannot determine which value is correct.
Is it safe to drive with P2199?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOne IAT sensor drifting
- PossibleWiring issue on one sensor
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Intake Air Temperature Sensor, Iat Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.