Diagnostic Aids

WARNING: This page is about a different variant/trim than selected.

Test the IAT sensor at various temperature levels in order to evaluate the possibility of a skewed sensor. A skewed sensor can result in a DTC or a driveability condition. Refer to Temperature Versus Resistance .
If the vehicle has sat overnight, the IAT sensor and the ECT sensor values should display within 3°C (5°F).
High resistance in the circuit of the ECT sensor could set a DTC.