OBD-II Code · Sensors
P2199
IAT Sensor 1/2 Correlation
low severitySafe to drive$80-$250
Two IAT sensors disagree.
Common symptoms
- CEL
Likely causes
- Failed IAT
- Wiring
Where to start
- Try the cheapest cause first. Start by checking: failed iat.
- Cost & scope. $80-$250
- If the code returns after the fix: escalate to a shop or scanner with live-data and freeze-frame. A code that re-sets means the underlying fault is still there.
Related codes
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