DTC P0113 - IAT SENSOR CIRCUIT HIGH VOLTAGE Oldsmobile Cutlass VI

Note. For circuit reference, see the appropriate WIRING DIAGRAMS article. For connector and terminal identification, see CONNECTOR IDENTIFICATION .

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.

Conditions required to set DTC are

1. Engine running for greater than 3 minutes.
2. Vehicle speed is less than 35 MPH.
3. No ECT or MAF sensor DTCs are set.
4. No VSS DTCs are set.
5. MAF value is less than 12 grams per second.
6. ECT is greater than 140°F (60°C).
7. IAT less than -29°F (-34°C).
8. Listed conditions present for at least 20 seconds.