[TheoR]

So, I've replaced my leaky airsprings recently so I thought the coast was clear for awhile, but instead I got a EAS fault couple days ago-A hard fault: 35mph and below and bump stop.

I've tried to reset the EAS using RSW's free software, but nothing....I've followed the steps, clearing the fault then disconnect the airbag ECS cable.

Noting that compressor doesn't start (even through RSW software), I looked at fuse 29 and 40...they look OK.
I also took apart the compressor itself....bearing is OK, no short present, and the teflon seal on the cylinder looks OK, too..

I think EASunlock can't reset the fault, since the compressor is not filling the airtank to bring the entire system back alive...So, what's causing the compressor to not start up?

You guys' input is much appreciated.

 

[TheoR]

Hello, thanks for the tips.

Anyhow, I've tried both the jumpering the compressor orange cable to ground and swapping out the relay w/ another one. The symptom remains, and the only thing I'm getting when I jumper cable 1 & 8 of airbag ECS is a clicking sound. Not sure where the clicking sound is coming from, but it's audible from the driver's seat and appears to be coming from the EAS box in the engine room.

Any experience w/this clicking sound? I'm starting to wonder maybe that the EAS driver module has gone bad. What are the symptoms if the driver module goes bad, and is there any way I can test it other than to swap it w/ a known good one?

Thanks

 

[TheoR]

OK, so I have a continuity between the black cable and the orange cable coming out of the compressor so I know I probably have a problem with the thermal switch.

What gets me is that I have attached a jumper cable from a little cut I made on the orange cable to ground (i just attached it to part of the body panel). Now, I'm no expert w/ electronics so not sure if I'm doing this right.....Do I have to completely cut the orange cable and connect to the ground? Or, jumpering is enough?

Also, once the above procedure is done(correctly), before the compressor can operate, do I have to clear the EAS fault w/ EASUnlock or do a jumper test, ie pin 1&8 on the EAS plug?

Thanks

 

[TheoR]

Ok, these electrical stuff is confusing......

I have continuity, so thermal cutoff is functioning properly, and thus the compressor is probably OK.....That explains it, because even when jumpering the orange cable, I got the same results...

Now, the question is, what could be the culprit? Is it the drive box or the ECS itself that's preventing the compressor from running?

 

[TheoR]

For starters, I'm glad to hear that the driver module is probably not the culprit.

Hearing that the compressor should start by itself, I think I'll concentrate on what's causing it not to run...

I think I'm gonna start w/ the maxi fuse. Although it looks OK, possibly it's got some faults...If that doesn't solve it, I think I'll source a second hand compressor and see what happens, assuming the one I have currently has some kind of a fault(s).