Join Now
International Automotive Technicians Network

P1389 Diagnostic Trouble Code Discussion for September 2007

No Auto Shutdown Relay Output Voltage To PCM


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1389
Help Request Posted
2000 Jeep Grand Cherokee Laredo 4.0L No Start, MIL Lamp on VIN: 1J4GW48SOY
P1389: No Auto Shutdown Relay Output Voltage To PCM. Cranks but no start. Code P1389 No ASD output voltage @ the PCM. The 15Amp #26 injector fuse was blown & blows immediately upon replacing.The fuel pump relay is being powered up but the injector fuse keeps blowing. I have unplugged the O2 sensor fuse since...
September 04, 2007
2000 Jeep Grand Cherokee Laredo 4.0L No Start, MIL Lamp on VIN: 1J4GW48SOY
P1389: No Auto Shutdown Relay Output Voltage To PCM. Cranks but no start. Code P1389 No ASD output voltage @ the PCM. The 15Amp #26 injector fuse was blown & blows immediately upon replacing.The fuel pump relay is being powered up but the injector fuse keeps blowing. I have unplugged the O2 sensor fuse since...
September 04, 2007