Code D: Evaporator Temperature Sensor
WARNING: This page is about a different car, the 1998 Acura 2.5TL. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
To avoid damage to sensor, use an ohmmeter with a measuring current of one milliamp or less.
- Disconnect evaporator temperature sensor connector. Measure sensor resistance at specified temperatures. See procedures in EVAPORATOR TEMPERATURE SENSOR under TESTING. If resistance is not as specified, replace sensor.
- If resistance is within specifications, remove climate control unit and disconnect 20-pin connector. Check for continuity between Light Green wire terminal and ground. If continuity exists, repair shorted Light Green wire between climate control unit and evaporator temperature sensor.
- If continuity does not exist, check for continuity in Light Green wire between climate control unit connector and evaporator temperature sensor connector. If continuity does not exist, repair open Light Green wire between climate control unit and evaporator temperature sensor.
- If continuity exists, check for continuity in Black/Green wire between climate control unit connector and evaporator temperature sensor. If continuity does not exist, repair open Black/Green wire between climate control unit and evaporator temperature sensor.
- If continuity exists, check for loose wires or poor connections at climate control unit 20-pin connector and evaporator temperature 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.