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P1693 Diagnostic Trouble Code Discussion for October 2012

Transponder No Response Error / Invalid Response

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Trouble Ticket Help Requests for DTC P1693
Help Request Posted
1998 Dodge Ram 2500 5.9L Poor Fuel Economy, MIL Lamp on, Transmission VIN: 1B7KF2369W
P1693: MIL Detected in Campanion Module. On this diesel there is a hard code P1693 has come up, cannot communicate with the ECM, can communicate with the PCM, the solenoids in the transmission will activate with KOEO only after transmission was rebuilt, it will shift erratic and has poor fuel economy...
October 12, 2012