wiring problem?
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Joined: May 2004
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wiring problem?
I have a 1990 full size Ford Bronco. Can't start right now. Battery is good. Ignition switch on top side of steering column has been replaced. The only thing that works are lights, hazard lights, and horn. If I jump the starter soleniod, starter cranks. I checked the voltage on the yellow wire at the ignition switch and it is about 2 volts. Have checked the voltage at the fusable links coming off of the solenoid and they are all 12 volts. Checked voltages at fuse box and everything is dead except hazard lights, External lights, and courtesy/dome lights/door chime. I have read other posts to get this far but now I am stuck.
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From: Virginia
Well, the yellow wire seems to be the problem. It comes from the fusible links right to the ignition switch. And all the circuits that are key on 12 volts in the fuse box are dead, because they are fed from the yellow wire/ignition switch circuit.
The problem is I have never looked real close as to how the yellow wire runs into the cab. It comes from the passenger side fender, but I don't know if it enters the cab around the heater box, or over by the brake booster. Keep looking and scratching your head. You've got it narrowed down.
The problem is I have never looked real close as to how the yellow wire runs into the cab. It comes from the passenger side fender, but I don't know if it enters the cab around the heater box, or over by the brake booster. Keep looking and scratching your head. You've got it narrowed down.
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wiring problem
It took awhile, but got it figured out. Had 12 volts just past inline fusable link but not at ignition switch. Started back tracking from there and found where wire comes through firewall. Still had about 4 volts. Found wire on outside of firewall. Still had about 4 volts. At this point it goes into a bundle up along inside left fender and across front grill. Well, I wasn't about to cut the bundle open so I found another 12 volt wire on the inside of firewall and did a quick splice job. Everything working great.
