DTC 7

DTC 7: An Open in the Evaporator Temperature Sensor Circuit

1. Remove the evaporator temperature sensor and test it.

Is the evaporator temperature sensor OK?

YES - Go to step 2.

NO - Replace the evaporator temperature sensor.

2. Disconnect the audio-HVAC display panel 22P connector.




3. Check for continuity between the No. 10 terminal of audio-HVAC display panel 22P connector and the No. 1 terminal of the evaporator temperature sensor 2P connector.

Is there continuity?

YES - Go to step 4.

NO - Repair open in the wire between the audio-HVAC display panel and the evaporator temperature sensor.




4. Check for continuity between the No. 9 terminal of audio-HVAC display panel 22P connector and the No. 2 terminal of the evaporator temperature sensor 2P connector.

Is there continuity?

YES - Check for loose wires or poor connections at audio-HVAC display panel 22P connectors and at the evaporator temperature sensor 2P connector. If the connections are good, substitute a known-good audio-HVAC display panel, and recheck. If the symptom/indication goes away, replace the original audio-HVAC display panel.

NO - Repair open in the wire between the audio-HVAC display panel and the evaporator temperature sensor.