No Accesory power
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Junior User
Joined: Feb 2004
Posts: 71
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From: Upper Illinois
No Accesory power
I have a 88 Bronco XLT with the 351w, i have no accesory power at all. I have checked the battery, replaced the ignition switch ( have two yellows with all time power, checked that) 
checked the relays on the driver side fender and still have no radio, no turn, idoit lights nothing. I have headlights, dome lights, but truck won't start or even crank. trien jumping solinoid and it just clicks. ANY ideas?
checked the relays on the driver side fender and still have no radio, no turn, idoit lights nothing. I have headlights, dome lights, but truck won't start or even crank. trien jumping solinoid and it just clicks. ANY ideas?
Posting Guru
Joined: Jun 1999
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From: Oregon
When you hit a tree with enough force to munch your hood and take out the radiator, it can cause physical damage to the wiring, too.
First step is to get a good set of scematics and study them. Have a multimeter handy. Take your time. Look to see what all your problems have in common. Just get familiar with the color codes of the wires. Find out how many ground wires you have and where they're at.
Next, take a REALLY good look at the physical wiring on your Bronco. Resist just replacing everything. You might have multiple problems.
Check connections - are the nuts tight on the studs? Wiggle wires at the connectors. Do any feel loose? Look at the harness for any signs of crimping or pulling. Was your battery a little loose? It might have pulled something in the collision. Look for voltage and make sure your grounds have continuity.
Check the wiring all the way to the starter. Check the starter.
You might find everything is caused from one problem or they all could be seperate. Your radio doesn't work, so maybe the connector came loose - see what I mean? Could be the same problem with your lights. Use your multimeter to see if you have power, then use the scematic to trace your way back.
Good luck..
First step is to get a good set of scematics and study them. Have a multimeter handy. Take your time. Look to see what all your problems have in common. Just get familiar with the color codes of the wires. Find out how many ground wires you have and where they're at.
Next, take a REALLY good look at the physical wiring on your Bronco. Resist just replacing everything. You might have multiple problems.
Check connections - are the nuts tight on the studs? Wiggle wires at the connectors. Do any feel loose? Look at the harness for any signs of crimping or pulling. Was your battery a little loose? It might have pulled something in the collision. Look for voltage and make sure your grounds have continuity.
Check the wiring all the way to the starter. Check the starter.
You might find everything is caused from one problem or they all could be seperate. Your radio doesn't work, so maybe the connector came loose - see what I mean? Could be the same problem with your lights. Use your multimeter to see if you have power, then use the scematic to trace your way back.
Good luck..
Last edited by Howdy; Mar 2, 2004 at 08:20 AM.
Thread Starter
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Junior User
Joined: Feb 2004
Posts: 71
Likes: 0
From: Upper Illinois
it's anautomatic, where is the safty switch located? i have power going to the ignition switch but turn the key and nothing coming out and i have tried two New switch's both with same result. Nothing.
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Joined: Jan 2001
Posts: 56,983
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From: Virginia
"trien jumping solinoid and it just clicks."
This may be a clue. Another thing you can check is the yellow wires you were talking about. You say you have power on them. I would be curious to see if you still have power on them when you turn the key. If the power suddenly drops, it sounds like you have a bad connection at the battery, battery cable, or the starter relay(solenoid).
This may be a clue. Another thing you can check is the yellow wires you were talking about. You say you have power on them. I would be curious to see if you still have power on them when you turn the key. If the power suddenly drops, it sounds like you have a bad connection at the battery, battery cable, or the starter relay(solenoid).
