DTC P0113 - IAT SENSOR CIRCUIT HIGH VOLTAGE GMC Envoy I

Note. For circuit reference, see WIRING DIAGRAMS - 4.3L article.

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.

Conditions for setting DTC

1. No ECT, MAF or VSS sensor related DTCs.
2. Vehicle speed is less than 2 MPH.
3. MAF value is less than 250 gm/s.
4. ECT is greater than 84.7°F (29.3°C).
5. Engine run time greater than 100 seconds.