Contents Wiring diagrams Section: Testing & Diagnostics All sections

DTC P0113 - IAT SENSOR CIRCUIT HIGH VOLTAGE Oldsmobile Eighty-Eight X

Note. For circuit reference, see DTC P0112 schematic.

Circuit Description

Intake Air Temperature (IAT) sensor is a thermistor that varies resistance based on temperature. As temperature of sensor increases, resistance decreases. Low temperature will result in a high signal voltage. DTC will set when PCM sees an IAT sensor voltage of greater than 5 volts.