DTC P1112: IAT Sensor Intermittent Malfunction: Condition
WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when Powertrain Control Module (PCM) detects intermittent voltage from Intake Air Temperature (IAT) sensor. MIL is illuminated when PCM detects malfunction during 2 consecutive drive cycles. Possible causes are:
- IAT sensor malfunction.
- Short or open between IAT sensor and PCM.
- PCM malfunction.