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P1388 Diagnostic Trouble Code Discussion for December 2004

Auto Shutdown Relay Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1388
Help Request Posted
2001 Dodge Grand Caravan Sport 3.3L No Start VIN: 2B4GP44341
P1388: Auto Shutdown Relay Control Circuit Malfunction. Checked circuitry at ASD relay.At KOEO [output circuit] system voltage should be present for about two seconds then flat line to ground. No two second pulse present. Checked the two batt+ at relay terminal, system voltage present. Checked relay control circuit...
December 19, 2004