Fire Damage Wiring Repair
 

Today I (thought I) completed the repair of my Jeep Wagoneer wiring
fire damage. When I got into the wiring behind the instrument panel, I
discovered that the damage appeared to be isolated to the block on the
headlight switch. There was also some damage to the instrument panel
itself, but I had a replacement instrument panel to replace it with.
There was considerable damage to the area around the heater control
box, and I replaced the heater control unit, which was in the new
panel/cluster.

I also had a complete wiring harness correct for the year. However, I
decided not to replace the entire harness, due to the damage appearing
to be relatively isolated.

So I bought a new switch block and cut the female wire block out of the
new harness, and spliced the wires into the GW wiring, being careful to
label the wires so that they would match up with the wiring block (I
hope). While I did not want to do this next step--circumstances forced
me to--I used crimp butt connectors instead of the 3M 200 series solder
butt connectors I wanted, PLUS, I had to solder the splice for the
large (approx. 12 ga.) red wire on the block.

Once I hooked up the connector to the switch and installed the new
instrument panel, I hooked up the battery and--you guessed it--no
headlights. Also no tail lights, however I did have turn signals and
brake light; no foglights. It's worth noting that, despite the fire and
damage, I had headlights before with the damaged switch, along with
tail lights, etc. Fog lamps were not installed at that point.

After replacing the instument cluster, I have ammeter indication but no
oil pressure or water temperature. I have no heater blower.

Needless to say, I am somewhat at a loss as to where to start
re-diagnosing this. I would greatly appreciate any observations,
comments or advice.

Randall Brink

Re: Fire Damage Wiring Repair
 

And the Nightmare Continues...

Now the instrument cluster and radio lights come on when the ignition
sw. is on; headlights will not come on at all.

Re: Fire Damage Wiring Repair
 

And the Nightmare Continues...

Now the instrument cluster and radio lights come on when the ignition
sw. is on; headlights will not come on at all.

Re: Fire Damage Wiring Repair
 

And the Nightmare Continues...

Now the instrument cluster and radio lights come on when the ignition
sw. is on; headlights will not come on at all.

Re: Fire Damage Wiring Repair
 

Missing a ground or a blown fuse link wire or both maybe?

The fuse links are at the end of the battery cable where it hooks to the
power distribution box. They are fat soft wires with large rubber tube
crimps where they join the wiring harness.

My money is on a missing ground for the dash....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)


"randallbrink@adelphia.net" wrote:
>
> And the Nightmare Continues...
>
> Now the instrument cluster and radio lights come on when the ignition
> sw. is on; headlights will not come on at all.

Re: Fire Damage Wiring Repair
 

Missing a ground or a blown fuse link wire or both maybe?

The fuse links are at the end of the battery cable where it hooks to the
power distribution box. They are fat soft wires with large rubber tube
crimps where they join the wiring harness.

My money is on a missing ground for the dash....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)


"randallbrink@adelphia.net" wrote:
>
> And the Nightmare Continues...
>
> Now the instrument cluster and radio lights come on when the ignition
> sw. is on; headlights will not come on at all.

Re: Fire Damage Wiring Repair
 

Missing a ground or a blown fuse link wire or both maybe?

The fuse links are at the end of the battery cable where it hooks to the
power distribution box. They are fat soft wires with large rubber tube
crimps where they join the wiring harness.

My money is on a missing ground for the dash....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)


"randallbrink@adelphia.net" wrote:
>
> And the Nightmare Continues...
>
> Now the instrument cluster and radio lights come on when the ignition
> sw. is on; headlights will not come on at all.

Re: Fire Damage Wiring Repair
 

Mike:

Do you mean where the positive battery wire attaches to the junction
box? I have been wanting to find these fusible links as the next step
in my diagnostic process, so any information will be very helpful. My
manuals are no help on this.

Randall

Re: Fire Damage Wiring Repair
 

Mike:

Do you mean where the positive battery wire attaches to the junction
box? I have been wanting to find these fusible links as the next step
in my diagnostic process, so any information will be very helpful. My
manuals are no help on this.

Randall

Re: Fire Damage Wiring Repair
 

Mike:

Do you mean where the positive battery wire attaches to the junction
box? I have been wanting to find these fusible links as the next step
in my diagnostic process, so any information will be very helpful. My
manuals are no help on this.

Randall