Code 37, IAT Sensor CKT Shorted High Temp Indicated: Notes

Code will set if Code 14 or 15 are not set, engine coolant temperature is less than 100°C and intake air temperature sensor signal indicates temperature is greater than 148°C.

NOTE: Test numbers refer to numbers on diagnostic chart.

Determines if code is the result of a hard failure or an intermittent condition.
If PCM recognizes the open circuit and displays a low temperature, PCM and wiring are okay.