## DTC Troubleshooting: 14

DTC 14: | A Short in the Evaporator Temperature Sensor Circuit

1. | Disconnect the evaporator temperature sensor 2P connector.

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 negative cable from the battery.

4. | Disconnect ECM/PCM connector E (31P).

5. | Disconnect climate control unit connector B (16P).

6. | Check for continuity between the No. 12 terminal of ECM/PCM connector E (31P) and body ground. Is there continuity? YES - Repair short to body ground in the wire between the ECM/PCM, the climate control unit and the evaporator temperature sensor.n NO - Go to 7.

7. | Reconnect ECM/PCM connector E (31P).

8. | Turn the ignition switch ON (II).

9. | Measure the voltage between the No.12 terminal of ECM/PCM connector E (31P) and body ground with the ECM/PCM connectors connected. Is there about 5 V ? YES - Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.n NO - Substitute a known-good ECM/ PCM, and recheck. If the symptom/indication goes away, replace the original ECM/ PCM.n