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P0122 Diagnostic Trouble Code Discussion for March 2015

TP Sensor 1 Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0122
Help Request Posted
2004 Cadillac CTS 3.6L MIL Lamp on VIN: 1G6DM57734
P0122: TP Sensor 1 Circuit Low Voltage. My testing reveals lo ref tan wire to have 2.4v at pcm with everything connected and key on. 5v ref is good.The one main ground to the pcm is good. I am calling this a faulty pcm, any other thoughts?
March 23, 2015