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P1689 Diagnostic Trouble Code Discussion for December 2012

Traction Control Delivered Torque Output Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1689
Help Request Posted
2001 Dodge Ram 3500 5.9L Poor Idle Quality, Surge, Stall
P1689: No Communication Between ECM and Injection Pump Module. ... stall after the first startup of the day. The engine starts immediately, RPMs reach idle speed and then drop to 400 RPM before settling back at a normal idle. This only happens after sitting over night with temperatures below 0*C. The customer made an app...
December 04, 2012