| DTC P0118 (6-2): | ECT Sensor Circuit High Voltage |
| 1. | Turn the ignition switch ON (II). |
| 2. | Check the ECT with the HDS or the scan tool. Is -20°C (-4°F) or less, or about 5 V indicated? YES - Go to 3. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the ECT sensor and at the ECM/PCM.n |
| 3. | Turn the ignition switch OFF. |
| 4. | Disconnect the ECT sensor 2P connector. |
| 5. | Connect the ECT sensor 2P connector terminals No. 1 and No. 2 with a jumper wire.
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| 6. | Turn the ignition switch ON (II). |
| 7. | Check the ECT with the HDS or the scan tool. Is -20°C (-4°F) or less, or about 5 V indicated? YES - Go to 8. NO - Replace the ECT sensor.n |
| 8. | Turn the ignition switch OFF. |
| 9. | Remove the jumper wire. |
| 10. | Connect ECM/PCM connector terminals A10 and B8 with a jumper wire.
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| 11. | Turn the ignition switch ON (II). |
| 12. | Check the ECT with the HDS or the scan tool. Is -20°C (-4°F) or less, or about 5 V indicated? YES - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/ PCM.n NO - Repair open in the wire between the ECM/PCM (A10, B8) and the ECT sensor.n |