DTC Troubleshooting: P2199
DTC P2199: IAT Sensor 1-2 Incorrect Correlation
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
P2199 IAT Sensor 1-2 Incorrect Correlation
    

1.
Connector visual check:

Connector visual check
?1.
Check for poor connections or loose terminals of these connectors.
ECT sensor 1
ECT sensor 2
MAF sensor/IAT sensor 1
IAT sensor 2

Are the connection and terminals OK?

     
YES
     
     
     
     
NO
     
     
     
Repair the connections or terminals, then recheck.?