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P1388 Diagnostic Trouble Code Discussion for December 2008

Auto Shutdown Relay Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1388
Help Request Posted
2000 Jeep Cherokee SE 4.0L No Start VIN: 1J4FN28S0Y
P1388: Auto Shutdown Relay Control Circuit Malfunction. ... vehicle for 1/2 day or more with no problems. Then when you turn off and go to restart engine will spin and spin but not fire, let sit for about 15 minutes and will start back. I have replaced crank sensor, cam sensor and battery temp. sensor with no luck....
December 08, 2008
2000 Dodge Ram 2500 5.9L No Start VIN: 1B7KF2367Y
P1388: Auto Shutdown Circuit. ... truck. Never had a problem from it. Ran fine. Went to start and just cranked. Checked fuel pressure and was 6psi. Two years ago, I converted over to the upgraded fuel pump kit. I bought another pump for 325.00 and now have 10 psi. but still no start. Have ...
December 26, 2008