Check coolant fan operation
as it start to over heat turn heater on does that help in cooling it down?
DTC P0117: ENGINE COOLANT TEMPERATURE (ECT) SENSOR LOW VOLTAGE INPUT
1-Turn ignition on. Check ECT using scan tool. If 302 °F (150 °C) or more, or zero volts is indicated, go to next step. If 302 °F (150 °C) or more, or zero volts is not indicated, problem is intermittent. System is okay at this time. Check for poor connections or loose wires at ECT sensor and PCM connectors. See WIRING DIAGRAMS article.
2-Disconnect ECT sensor 2-pin connector. Check ECT using scan tool. If 302 °F (150 °C) or more, or zero volts is indicated, go to next step (D16Y5 engine with M/T), or go to step 4 (except D16Y5 engine with M/T). If 302 °F (150 °C) or more, or zero volts is not indicated, replace ECT sensor.
3-On D16Y5 engine with M/T, turn ignition off. Disconnect PCM 16-pin connector "D". Check for continuity between ground and ECT harness connector terminal No. 1 (Red/White wire).
If continuity exists, check for short in Red/White wire between ECT sensor and PCM 16-pin connector "D" terminal No. 2.
If continuity does not exist, substitute a known-good PCM and recheck.
If symptom or indication goes away, replace original PCM.
4-On all except D16Y5 engine with M/T, turn ignition off. Disconnect PCM 31-pin connector "C". Check for continuity between ground and ECT harness connector terminal No. 1 (Red/White wire).
If continuity exists, check for short in Red/White wire between ECT sensor and PCM 31-pin connector "C" terminal No. 26.
If continuity does not exist, substitute a known-good PCM and recheck. If symptom or indication goes away, replace original PCM.
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Tuesday, October 13th, 2009 AT 6:01 AM
