DTC P0111: Intake Air Temperature Circuit Range/Performance Problem: Condition

DTC is set when variation in Intake Air Temperature (IAT) is less than predetermined after engine is at operating temperature. This is a continuous monitor. MIL is illuminated when Engine Control Module (ECM) detects malfunction during 2 consecutive drive cycles. Possible causes are:

• High circuit resistance.
• IAT sensor malfunction.
• ECM malfunction.