7 codes J1939 system down |
07-09-2023, (Subject: 7 codes J1939 system down ) Post: #19 | |||
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RE: 7 codes J1939 system down Having same issues on a 2019 Peterbilt 389 with a cummins x15, no power at 15 Amp fuse. If we jump a ground at the relay it will power on fuse. Does the ecm command the ground on the relay?? | |||
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