DTC Troubleshooting: 8

DTC 8:  A Short in the Evaporator Temperature Sensor Circuit


1.Remove the evaporator temperature sensor.

2.Test the evaporator temperature sensor.

Is the resistance within the specifications shown on the graph?


YES - Go to 3.


NO - Replace the  evaporator temperature sensor.n


3.Disconnect audio-HVAC module 22P connector.

4.Check for continuity between the No. 10 terminal of the audio-HVAC module 22P connector and body ground.

Is there continuity?


YES - Repair short to body ground in the wire between the audio-HVAC module and the evaporator temperature sensor.n


NO - Substitute a known-good audio-HVAC module, and recheck. If the symptom/indication goes away, replace the original printed circuit board.n