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P1389 Diagnostic Trouble Code Discussion for April 2015

No Auto Shutdown Relay Output Voltage To PCM

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Trouble Ticket Help Requests for DTC P1389
Help Request Posted
1997 Dodge Ram 1500 ST 3.9L No Start VIN: 1B7HC16X9V
P1389: no asd output at computer. ... computers all of which have failed in different ways. first: no start at all, second:start only on starting fluid, no charging, third: smoked during first crank. Last one literally popped and smoked. Truck originally came in for no charging. After testing ...
April 15, 2015