DTC Troubleshooting: 15

DTC 15:  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 the climate control unit 30P connector.

4.Check for continuity between the No. 3 terminal of the climate control unit 30P connector and body ground.

 

Is there continuity?


YES - Repair short to body ground in the wire between the  climate control unit and the  evaporator temperature sensor.n


NO - Substitute a known-good  climate control unit, and recheck. If the symptom/indication goes away, replace the original  climate control unit.n