Thread: Can any one help please?

May not be a big help, but if the fuse is ok have you checked the relay. Mine doesn't have SLS but I think the relay is in the fuse/relay box by the battery.

Here's a link for a PDF hope its of use

https://www.dropbox.com/s/2hjgnk93y5...00MY%20RHD.pdf


Pete

Originally Posted by worane

My SLS compressor has always been stuffed,
I bought another which arrived today,It has no power getting to it,
All comments welcome.
Regards Nick.

I would be double checking your suspension settings with the nanocom,
it can be changed to coils which may affect power to the compressor plug??
Worth a check

Have you confirmed the power supply is arriving at the SLS compressor with a multimeter (or not) don't assume that the compressors are both not faulty until you do.

I second investigating the relay. Mine was stuffed in the opposite way, it stayed on. Result: burnt out compressor. It could even be a dirty contact where the relay plugs in under the hood. Check for any corrosion etc. I'm fairly sure there's a higher current fuse under the good for the SLS. I can't remember, but it is definitely where the relay lives.

No , no power to the main plug from the fuse panel.
I have checked all the fuses under the bonnet too , all ok.
I just need to find out where the electricial pick up comes from so I can run a new feed.
I do not know if the if the car has some sort of limit switches which stop me from checking power or is shutting off the power as if the thing is at the correct height. I do know the new compressor works because I ran it up off a battery.

There are height switches on the chassis at the rear, connected to the trailing arm to the diff. If you have pumped the car up to ride height the switches will be preventing it switching on again until the vehicle is lowered again. Deflate to the bump stops and try again with the procedure. A read of RAVE on the SLS operation would be an idea too.
Cheers Scot

If someone has set the sls ecu to no, (that is metal springs) there will be no power to anything sls related. This may have been done to kill the warning light.
Check that first if possible, then check for 12v to the pump relay coil, (under the bonnet), then listen for the relay clicking, you should also hear solenoid valves near the compressor operating. Make sure the air lines are connected to the valves first.
If the ecu detects ANYTHING not quite right it will shut off power to the compressor.

Good luck.
Terry

Originally Posted by schuy1

If you have pumped the car up to ride height the switches will be preventing it switching on again until the vehicle is lowered again. Deflate to the bump stops and try again with the procedure. A read of RAVE on the SLS operation would be an idea too.
Cheers Scot

You know what... I'm thinking I'd try this first.
If you are hearing clicking as described, it is likely the valves trying to lower the height unsuccessfully. Drop it to bumps then have a crack. I believe Scot is on the money.