I also had my 2008 XJ VDP converted with Arnott's coil overs in May 2014 and am still waiting for a potential fix to the error codes (besides pressing the reset button each time the car is started). Arnott has me on a waiting list for this info.

UPDATE: I received an e-mail from Marvin Noel, Supervisor of the Technical & Warranty Division at Arnott yesterday (06/02) advising me that he was just alerted their R & D manager that the EBM should ship out no later than mid this week.

FINAL UPDATE: I finally had European Service Center in Dallas install the Electronic Bypass Module (EBM) sent to me by Arnott to resolve the yellow dash warning light and corresponding Air Suspension and CAT error messages on my 2008 XJ8 with Arnott coil over conversions. I'm so pleased now and wish to thank Marvin Noel and the R&D staff at Arnott for supporting clients by developing and subsequently providing the EBM.

www.arnottinc.com
Phone: 1-800-251-8993 x100
Fax: 1-800-352-8659

 

Here 34by151 explains in detail what has to be done to get rid of the error messages.
How to add manual headlamp leveling for the early X350 is proposed as well.

Thanks again

goldy locks

 

I just noticed the Arnott website now says "Instructions To Bypass 04-07 Dashboard Warning Light" instead of just "04-06" that it stated previously. Did they discover a new bypass method for 2007's, but still can't figure it out for 2008 & 2009's?

 

Indeed, they have come up with a solution!
O4-07 does not need the bypass, but they now have a little box called EBM for the '08-'10 cars.

I have had some good emails with Marvin, the tech director for Arnott and he's given me some info to update my suspension super thread.

We just had a baby last wednesday so I've been a bit busy to post it

Here's a link to the new Arnott coil overs, you can see the box in the picture:

https://www.arnottindustries.com/par...9_gid1122.html

 

It appears the Arnott website now has separate pages for the Jaguar X350 and X358 conversion kits, along with Comfort or Sport suspension options. Nice to see they finally developed the Electronic Bypass Module!

 

Arnott sent me the override part. You have to remove the back seat bottom and back, then move away the cover for the module. Evidently the mechanic who installed the replacement shocks had already removed the four harnesses from the module as he should have done. I had to attach four wires to one of the harnesses. Problem solved.

It took me longer to get the seats out than to connect the part.

Thanks to Arnott for following up with this problem and sending the fix.

 

 

Hi, you seem to have knowledge that could help me. I have a 2004 XJ8 VDP, having problems with the air suspension, my mechanic replaced the front driver side shock with an Arnott, because it was leaking. Not familiar with Jags, the "vehicle too low", still comes on, the whole car was sitting on the wheels, now the back raises, when started, but the front stays, low, and the "vehicle too low" lights up, we can hear the compressor, working, any suggestions?? Need help! Mechanic is frustrated.

 

It would be a good idea to open a new thread. There are many possible causes for your problem.

 

Carefully drive it a bit. The control unit sometimes gets locked in jacking mode and driving gets her out. Try it and report back in a new thread if needed.

Guus

 

Or have a look at this similar suspension problem before opening a new thread:

https://www.jaguarforums.com/forum/x...sp-sdd-122505/

 

Am I missing something here? What "reset" button is everyone referring to?

 

See reset button on US spec 2008 XJ located on the black buttons panel just to the lower left of the steering wheel … Sign In - Jaguar Forums - Jaguar Enthusiasts Forum or

 

Pressing that can reset the Air Suspension Fault message? I thought that was just for resetting the trip computer?

Thanks, btw, for the reply and photo.

 

Yes that function for the reset button was news to me too when the technician at European Service Center enlightened me before the EBM solution. Pressing the reset button after starting the car will erase both the "Air Suspension fault" and another computer message (which I no longer can quote) but will NOT eliminate the amber warning light in the middle of the speedometer. After my EBM from Arnott was installed both fault messages AND the amber warning light no longer appear.

 

Just something to add o the thread ........ Jaguar did indeed change the software on the later models so you do need the Arnott EBM .......


................ I discovered this morning that here in the UK, when you take the car in for a full dealership service, one of things they do is update the software, which is very nice of them, but means that the 2003 car I am driving has 2010 software ......


End result is I cannot get rid of the CATS error message ..... lol .... so now I need the EBM thingy as well. Have contacted Arnott and one is on the way.

 

In the older 350 XJ Jags the need for an Electronic Bypass Module (EBM) wasn’t necessary. You just unplugged the entire module. However after a software upgrade at the dealer the CAN system seems to recognize the lack of the module and throws the code. Arnott now provides the EBM on all Jaguar XJ (X350 & X358) conversion kits C-2745 for model years 2004-2009.

https://www.arnottindustries.com/par...20_pid136.html

https://www.arnottindustries.com/par...20_pid208.html

 

I get an "air suspension fault" message about half the time although the ride height stays in spec.

Looking at a chassis fault code list I believe I counted 35 different codes that can trigger that message.

I haven't yet gotten my Mongoose clone software to work so I can't read the Chassis codes, so no joy in finding the cause so far.

I do have a bagpipingandy piston ring kit in the glove compartment in case cold weather does cause a ride height problem.

Too bad the message center can't be more helpful, but I suppose owners were not expected to solve the problems themselves - just to go back to a dealer to keep his boat payments up to date.

 

Hi everyone,

I am half way through my suspension conversion however I am doing it a bit different. I am not using any aftermarket systems but instead using the S Types shocks. They essentially share the rest of the suspension and are of similar weight and so forth. I just finished the front and still have to do the back. However, not only do I get the fault message, I also get a put the car in Park and a chime goes off when ever the car is above 5 mph. I can deal with the messages but that chime has to go.

Can I unplug just the front suspension harnesses from the black box?
If anyone has an extra EBM from the Arnott, I will buy it from you.

I have an 08 vandan plas xj

Many thanks.

 

Driving around with springs in the front and air shocks in the back will no doubt be messing with the air suspension system. Did you plug the air lines? Front height sensors are still in place? Are your S-Type shocks with or without CATS?

It is possible to disable the air suspension completely in a 2006 onward XJ by software alone but you need an SDD or IDS diagnostic system, and coded access to change the vehicle configuration.

I don't know anyone in Florida who could do this, but I know a guy in New Jersey.

The only chime I can think of is related to the park brake, not sure why you would be getting such an error unless something else is going on.