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P1389 Diagnostic Trouble Code Discussion for February 2012

No Auto Shutdown Relay Output Voltage To PCM


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Trouble Ticket Help Requests for DTC P1389
Help Request Posted
1996 Jeep Grand Cherokee Laredo 5.2L No Start VIN: 1J4GZ58Y7T
P1389: No Auto Shutdown Relay Output Voltage To PCM. At times the engine will crank (strong) & not start. There is no injector pulse at the injectors. Monitoring spark-consant at the spark tester connected inline between the coil & coil wire. Fuel presure is steady @ 48 psi. Battery voltage is present @ ...
February 08, 2012
1996 Jeep Grand Cherokee Laredo 5.2L No Start VIN: 1J4GZ58Y7T
P1389: No Auto Shutdown Relay Output Voltage To PCM. At times the engine will crank (strong) & not start. There is no injector pulse at the injectors. Monitoring spark-consant at the spark tester connected inline between the coil & coil wire. Fuel presure is steady @ 48 psi. Battery voltage is present @ ...
February 08, 2012