Thread: SLS retrofit

SLS nealry finished..jpg
Here is the nearly finished loom, except that I have found that the wires for the drivers side height sensor co from the main chassis loom. Of course my main chassis loom does not have those wires.
I think I will have to find where those wires would exit the SLABS computer and run them to near the orange plug some how. This is a bit annoying.
Also I stepped on and broke the plug that supplies the 12V to the compressor, also annoying, so I will have to splice that wire. Any bets on from the fuse-box relay cable not being there!?

Originally Posted by Bohica

I have found that the wires for the drivers side height sensor co from the main chassis loom. Of course my main chassis loom does not have those wires.
I think I will have to find where those wires would exit the SLABS computer and run them to near the orange plug some how.

The circuit for the RH height sensor is not going to the orange plug, it goes to the grey plug C0392/0378, the SLS chassis loom should have that plug too

Originally Posted by Bohica

Also I stepped on and broke the plug that supplies the 12V to the compressor, also annoying, so I will have to splice that wire. Any bets on from the fuse-box relay cable not being there!?

I dont understand what you meant here

Originally Posted by sierrafery

The circuit for the RH height sensor is not going to the orange plug, it goes to the grey plug C0392/0378, the SLS chassis loom should have that plug too

Yes, it goes to the grey plug, if, the car was installed with SLS from the factory. I have a standard non SLS chassis loom. The grey plug C0378 looks like it does not seem have the wires for the RH sensor. Maybe I missed it and I have a RH height sensor plug on the chassis. I'll check tomorrow.

Originally Posted by sierrafery

I dont understand what you meant here

The black plug C0390 is broken. On the SLS Loom it has two cables, white with a purple stripe that goes to the fuel filter water sensor, and a white with a black stripe that goes to the SLS compressor. I am thinkg that the socket it connect to, C0376 will only have the wire for the fuel filter water sensor, not both.

The grey plug does have the wires from the SLABS computer. The Black power plug does have the air compressor supply. Now it is just a matter of splicing some wires.
In retrospect it may have been better to remove the entire chassis loom from the donor car, not just the orange plugged SLS part. A huge task, maybe easier to splice the wires.

SLS Grey male.jpg
The Loom side of the connector. The third row from the top has three blanks. These supply the RHS height sensor.
SLS grey female.jpg
The other side, you can just see the cables in the bottom row.
SLS Black male.jpg
Chassis of the black plug. Just the one lead white with purple stripe for the fuel filter was sensor
SLS Black Female.jpg
Fuse-box/relay side, two cables white with black stripe compressor power and the white with purple stripe. I have to check that the fuse and relay are there, although not an issue if they are not.

I have fitted the RHS hieght sensor. This goes in the grey chassis loom plug. I had to de pin the pins for the height sensor. De pinning was a first for me. Re pinning on the car will also be a first. I've used Nitto tape.
Next job is to remove the aux battery from the compressor shelf. Although I might just refurbish the compressor.
I think before I install the air bags, I'll connect all the parts and see if the compressor kicks in and the bags inflate and deflate.

aa01.jpg
The orange plug, of course fits into the orange socket that sits next to the coolant reservoir. The three pins for the RHS height sensor at the top.

aa02.jpg
The infamous RHS height sensor, in a slightly longer conduit.

aa03.jpg
The not at all famous LHS height sensor

aa04.jpg

The large black plug is the compressor plug, the others control the valves LHS, RHS and exhaust, not quite sure which one is which at the moment.

You can identify which plugs are for which valves by corroborating with the connector views for C0781, ..782, ..783 => exhaust = black, LH valve = blue ... guess which one is for RH

Ok only the off road height switch

SLS ORH No Switch.jpg
The before photo.

SLS ORH Switch.jpg
The after photo.

I have also changed the piston ring and seal on the compressor. I am thinking, maybe run the compressor to see if it runs.