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P1693 Diagnostic Trouble Code Discussion for February 2008

Transponder No Response Error / Invalid Response

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Trouble Ticket Help Requests for DTC P1693
Help Request Posted
1999 Dodge Ram 2500 5.9L No Start VIN: 1B7KF236XX
P1693: Companion DTC was set in both the ECM and PCM. Lift pump will intermittently run after "bumping" the engine over a few revolutions. Has RPM reading. Has CAM reference. Has fuel to the pump, but no injection. Will run on small ether bursts, but dies immediately after. Vehicle came in with a no star...
February 25, 2008