Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
The following table illustrates the ECM connector locations:
| ECM Connector Location | |
|---|---|
| X2 | X1 |
| Front of Vehicle | |
- Test the ECT 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 - Engine Coolant Temperature Sensor .
- If the vehicle has sat overnight, the IAT sensor and the ECT sensor values should display within 3°C (5°F).
- After starting a cold engine, the ECT sensor temperature should rise steadily, then stabilize after the thermostat opens.
- High resistance in the circuits of either the ECT or IAT sensor could set a DTC.