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P0690 Diagnostic Trouble Code Discussion for June 2014

Engine Controls Ignition Relay Feedback Circuit High

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Trouble Ticket Help Requests for DTC P0690
Help Request Posted
2010 Chevrolet Silverado 2500 HD LT 6.0L MIL Lamp on VIN: 1GB3CVBK7A
P0690: ecm/pcm power relay sense high ckt. I have this 2010 chevy truck with a 6.0 came in with the codes i listed the 5v refernce buss 1 has 12 volts all the time i have un plugged the map sen, app sen, cam sen,ftp sen,eop sen, still with the 5v reference reading 12 v at all the sensors i unplugged if...
June 19, 2014