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 |