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P1388 Diagnostic Trouble Code Discussion for August 2009

Auto Shutdown Relay Control Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1388
Help Request Posted
1999 Jeep Grand Cherokee Laredo 4.0L No Start, ASD RELAY BUZZES VIN: 1J4GW58S9X
P1388: Auto Shutdown Relay Control Circuit Malfunction. replaced pcm =same problem occurs. the asd relay buzzes when key is turned on, the electric cooling fan runs. cranks but will not start.
August 14, 2009
1999 Jeep Grand Cherokee Laredo 4.0L No Start, ASD RELAY BUZZES VIN: 1J4GW58S9X
P1388: Auto Shutdown Relay Control Circuit Malfunction. replaced pcm =same problem occurs. the asd relay buzzes when key is turned on, the electric cooling fan runs. cranks but will not start.
August 14, 2009