I recently was under my dash finishing running some wiring for my remote power door locks (I will post some pics of the remote locks after I get this issue solved).
To my shock I found a light blue wire under the passenger side dashboard that had it’s sheathing melted. Some areas off the wire were 100% exposed. This wire runs into the wiring harness that is down near the main fuse panel. It also had a plastic connector that could be unplugged.
I unplugged the wire and cut a piece of the wire back and have been attempting to see where the wire runs and why it shorted out or burned through or whatever. I also have looked at DeTomaso’s wiring diagram trying to trace the wire.
I have concluded that one end of the wire runs to the ignition coil and the other runs under the dash towards the driver’s side. I have pulled the tachometer (a feat in itself – hope I can get it back in with my large hands) and can see the melted light blue wire behind the large wiring harness running on the driver’s side but cannot see were it ends (the light blue wire is totally bare on the driver’s side).
The wiring diagram shows this light blue wire terminating at the ignition switch after running through a connector block. It also lists the wire when it reaches the connector block as a “resistor cable 1.4 ohms”. I have included some pics below of the wiring diagram and where the light blue wire runs. I also have included a pic of the wire with the connector on the bottom that I removed.
Does anyone know where the connector block is actually located in the car? I am guessing it may be under the plastic surrounding the steering column.
Also has anyone ever run into this situation before? I verified that the light blue wire does go to the coil as the car will turn over and fire but will not stay running with the wire unhooked and cut out. I can jump power to the coil and get the car to run.
I am very concerned about why this Light Blue wire would have melted through. I am sure I would have smelled this if it would have happened while I was driving it. I also have a battery disconnect on the car which is always utilized.
Sorry this is so long winded but any help or advice would be much appreciated.
Thanks again.
Devin
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