Engine Coolant Temperature (ECT) Sensor
WARNING: This page is about a different car, the 1998 Acura 3.2TL. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Remove climate control unit and disconnect 20-pin connector. Disconnect ECT sensor connector. Check for continuity in Red/White wire between climate control unit connector and ECT sensor connector. If continuity does not exist, repair open Red/White wire between climate control unit and ECT sensor.
- If continuity exists, check for loose wires or poor connections at climate control unit 20-pin connector and ECT sensor connector. If connections are okay, substitute known-good climate control unit and recheck. If symptom goes away with known-good climate control unit, replace original climate control unit.