DTC P0112: Intake Air Temperature (IAT) Sensor Circuit, Low Input: 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 input voltage from IAT sensor is less than .2 volt. This is a continuous monitor. MIL is illuminated when PCM detects malfunction during 2 consecutive drive cycles. Possible causes are:
- IAT sensor malfunction.
- Short circuit between IAT sensor and PCM.
- PCM malfunction.