P0645 - A/C clutch relay circuit. Ensure wires are correctly connected.
P0117 - ECT sensor voltage too high.
P0118 - ECT sensor voltage too low.
Ensure the sensor wire is plugged in. Check for broken wires
P1490 - Low speed fan control relay circuit.
P1489 - High speed fan control relay circuit.
Above are all related to electrical problems and it is possible a connector had not been correctly/fully plugged in or interchanged if they are nearby.
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Thursday, July 28th, 2011 AT 6:20 AM