Under Floor Wiring

[Puggy2]

So it has happened to me. after 2 years of water problems until I discovered the drain tubes and dried it all out I was surprised in the week by my car loosing 90% of the cabin electrics the only gauge working is the fuel gauge radio died heater control died so I pulled up the front drivers side carpet to discover all the plugs very badly corroded with some pins left in the other side when seperated now the question how far back can these wires be cut back as the corrision has creaped up the wire I cut 1" off and they will not tin ( been solderinhg for 30 years) is it an option to use chocky blockeds.

[steve_earwig]

The wire probably isn't tinning because it's corroded. What if you scrape the copper wires with a knife, will that work? Very not keen on chocky blocks, they corrode too...

I presume the wires can be cut back as far as it takes but you might have to find some more wire to make up the gaps.

[OllieNZ]

Try using scotch brite I find this tends to do the trick. Or cut off as much as is required and splice in extra wiring as required.
PIDG inlines with shrink sleeve over top should work or if you can get your hands on them raychem environmental splices would be the dog's danglies

[Puggy2]

I was thinking chocky block for more mechanical strength and then wrapping them in self mangenating tape

[OllieNZ]

We use the PIDG crimps on propeller de-ice harnesses and they get spun to over 2500rpm and I've seen plenty of wire failures but never a crimp failure.

[Puggy2]

All wires joined up still as bad only got wash/wipe back me thinks BSI is screwed

[Puggy2]

Just bringing this up again because still no change. Anyone have a better wiring diagram than the Haynes one.

[hasler88]

Ive got sedre which diagram would you like

[steve_earwig]

That's the $64,000 question, I can probably find the interconnects on Sedre but, presented with a load of wires with probably no visible labels, it's probably not going to help much.

Here's one:

IC11A Inst.jpg

[Puggy2]

Thanks its the wiring under the drivers side carpet that covers the joints so I can check that I have joined them all up correctly. Car is 2000 2.0HDi Estate RHD

[steve_earwig]

Oh! It's a semi-mux, I must have got my wires crossed somewhere (er..) Oh dear, scratching about in the murky world of semi-mux fuzzy scans

I guess it'll still be IC11:


(btw that's full resolution )

I guess if you can work out which connector(s) we need to look at I can investigate further.

[Puggy2]

Thanks Steve that will give me a start.

[Puggy2]

Just a thought my 406 is a 2000 Executive 2.0HDi I also have to break up a 2002 LX is the wiring from the diagram the same from the dash to the other side of the car?

[steve_earwig]

Eh? Do you mean are the looms the same between the cars? They're both semi-mux so probably (I can't be 100% definite even with the RPO's)

[Puggy2]

The 2002 has Com 2000 column switches