homestead463
Active Member
I'm looking for a wiring diagram for an 1988 s1954 truck, cab wiring to be specific. Parking brake warning light - brake pressure warning (assume this is the hydraulic reservoir is empty, but not sure) light don't work. Also found wire 63 and 63a broken off in the junction box behind the seat. I'm not sure what they're for. Dome light don't work via the headlight switch, none of the cluster lights work.
Figured I'd ask here if anyone had a diagram before I tear everything apart and have to do this the hard way. Its simple enough wiring but the thing is, everything in the cab seems to be black wires with numbers written on them. Not the easiest to track down.
Figured I'd ask here if anyone had a diagram before I tear everything apart and have to do this the hard way. Its simple enough wiring but the thing is, everything in the cab seems to be black wires with numbers written on them. Not the easiest to track down.