DTC P0112: Intake Air Temp. (IAT) Circuit Low Input
- Connect scan tool to Data Link Connector (DLC). Turn ignition on. Select IAT parameter. If display reads 246°F (119°C), go to next step. If display reading is not 246°F (119°C), check for an intermittent problem. See TESTS W/O CODES article.
- Turn ignition off. Disconnect IAT sensor harness connector located next to air cleaner housing. Turn ignition on. If display reading on scan tool changes to -40°F (-40°C), replace IAT sensor. If display reading is not -40°F (-40°C), check Gray/Red wire for short to ground. If wire is okay, replace PCM. Retest system.