Circuit Description
The IAT sensor is a thermistor mounted in the air cleaner housing to monitor air temperature flowing to intake manifold. Code is set when ECM detects a open or short circuit. ECM will operate in fail-safe mode if Code P0110 is set. Possible causes are:
- IAT sensor open or short circuit.
- IAT sensor malfunction.
- ECM malfunction.
NOTE:
If Codes P0105, P0106, P0110, P0115 and P0120 are output together, inspect ECM terminal E2 (ground) circuit. Repair as needed. See wiring diagram in the WIRING DIAGRAMS
article.