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P0117 Diagnostic Trouble Code Discussion for November 2006

Engine Coolant Temperature Sensor Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0117
Help Request Posted
1996 Chevrolet Lumina 3.1L MIL Lamp on VIN: 2G1WL52M1T
P0117: ECT Sensor Circuit Low Input. coolant temp reading on scanner is normal until it reaches 120 f, then jumps to 283 f. engine is not overheating, pull connector from cts, and temp reading drops to -38 f, which it should. put in aftermarket cts, no better. put in oe cts, no better. reading te...
November 01, 2006