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Lighting & ElectricalPost your lighting and chassis/engine electrical questions here. Any audio/video questions should be posted in the 'Audio/Video Electronics' section.
I will check this afternoon and reply with the results
6V on a fuse socket is a definite problem, I don't think that it explains all your issues but it needs to be fixed so I am going to help you track down that fault and repair it then you can tell me what problems remain and we can go from there.
every fuse throughout both under the hood and inside the door panels that has anything to do with the engine all have 12v except for that one
What are the fuses behind the dash to would any of them have anything to do with it
That S/R fuse shares the same feed from the ignition switch as the ECM1 fuse with 6v on it so I am figuring out where the corossion/short/break is in the that circuit so I can guide you to a fix. The voltage is definitely good at the ignition switch and up to the UHFB where something is wrong. The eng1 fuse also gets its power on that circuit and it has 12v and it appears that the branch between Eng1 and ECM1 in under the UHFB. Have you ever unbolted the UHFB and looked under it for corrosion/shorts/etc? I would think that the bridge is a metal trace and not a wire so its unlikely to be damaged severely but the fact that you have 12v on ECM1 but 12V on ENG1 points there.
That S/R fuse shares the same feed from the ignition switch as the ECM1 fuse with 6v on it so I am figuring out where the corossion/short/break is in the that circuit so I can guide you to a fix. The voltage is definitely good at the ignition switch and up to the UHFB where something is wrong. The eng1 fuse also gets its power on that circuit and it has 12v and it appears that the branch between Eng1 and ECM1 in under the UHFB. Have you ever unbolted the UHFB and looked under it for corrosion/shorts/etc? I would think that the bridge is a metal trace and not a wire so its unlikely to be damaged severely but the fact that you have 12v on ECM1 but 12V on ENG1 points there.
George
when I get home today I’ll remove the UHFB and check out the plugs themselves and whatnot and see how they look and see if I see anything that looks burnt up or whatnot
That S/R fuse shares the same feed from the ignition switch as the ECM1 fuse with 6v on it so I am figuring out where the corossion/short/break is in the that circuit so I can guide you to a fix. The voltage is definitely good at the ignition switch and up to the UHFB where something is wrong. The eng1 fuse also gets its power on that circuit and it has 12v and it appears that the branch between Eng1 and ECM1 in under the UHFB. Have you ever unbolted the UHFB and looked under it for corrosion/shorts/etc? I would think that the bridge is a metal trace and not a wire so its unlikely to be damaged severely but the fact that you have 12v on ECM1 but 12V on ENG1 points there.
George
so I’ve swapped the uhfb and the inside fuse block completely all new fuses and everything and it’s still doing the same thing, it must be something throughout the harness, bad ground, cooked ecm, behind dash fuse panel?
