FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

P0117

Tests 94 - 98:




Tests 99 - 100:




SYMPTOM
P-0117 ECT SENSOR VOLTAGE TOO LOW

WHEN MONITORED
With the ignition on.

SET CONDITION
The engine coolant temperature sensor circuit voltage at PCM cavity 26 goes below 0.5 volt for more than 3 seconds.

POSSIBLE CAUSES
- ECT sensor signal circuit short to ground
- ECT sensor signal circuit shorted to ground circuit
- ECT sensor wiring harness intermittent defect
- ECT sensor wiring harness observable defect
- ECT sensor def
- PCM defective