Intake Air Temperature Sensor Circuit Diagram The Intake Air Temperature (IAT) sensor detects the temperature of the incoming air stream in a car machine. The IAT sensor resistance changes in response to the intake air temperature. The AIT is usually located in an intake air passage which is connected to the THA terminal on the ECM, it is used for detecting ambient temperature on a cold start and intake air temperature as the engine heats up the incoming air. The sensor resistance decreases as the surrounding air temperature increases. This provides a signal to the PCM, indicating the temperature of the incoming air charge. The following schematic shows the Typical Intake Air Temperature (IAT) Sensor Circuit Diagram.



Related Post

1986 BMW E28 524TD Electrical Cable Harness Routing Service and Troubleshooting
1997 Honda Accord Anti-lock Brake ABS Circuit Diagram
Suzuki GSX400F'82 Signal Generator Circuit Diagram
2000 Chrysler Sebring Spark Plugs Cables and Coil Diagram
1998 Chevrolet Blazer Blower Motor Control Module Circuit Diagram