Jeep 87 wiring question

[coman]

OK, I am tracking the problem down. 

 

The symptoms:  No horn, blinkers, radio, heater/ac or wipers.  They all used to work and they all stopped at the same time.  The truck runs fine.  The flashers work fine.   Fuses all tested for continuity.  Horn replaced, Blinker switch removed and cleaned.  Radio lights up only for the eject function then goes dark again.

 

Other actions:

Remove C101

Refresh grounds:  drivers side under dash and near the washer tank/air cleaner.  Passenger side both at blower and near the relay bank.  Engine (center) to firewall.  Engine block stud, (2 wires here).  

 

I reviewed the diagrams supplied by hosts and others (TY).  A bad ground seems likely or a common power relay?

 

Any others thoughts?

 

TY in advance.

 

[Ωhm]

Do listed components work with the KEY in the ACC position?

[Jeep Driver]

Just because a fuse is showing power across the fuse does not mean the power is passing through the fuse block. IOWs, corrosion on the back side of the block. 

[cruiser54]

Brown wire at ignition switch is melted and switch is history.

 

 

[coman]

You da mack.  Flawless victory

 

 

[cruiser54]

Overloaded brown wire circuit sends power to all these:   "No horn, blinkers, radio, heater/ac or wipers."

Wire gets hot, melts. switch fails. 

[coman]

Pics and praise....

 

Everything works now except the horn.  Almost ready to sell.  Thanks  Cruiser54.  Case closed.   Hail Comanche Club!