How To: Re-Sync DDE/EWS with Foxwell NT530. BMW Code 4A63
 

Morning all,

So some may have read my last post regards having a low battery and the cars immobiliser de-syncing.

See here for the original thread:
https://xoutpost.com/bmw-sav-forums/...w-battery.html

So following up on that I thought I would write a quick how-to on the Foxwell NT530 (may work on the 510 and 520) to Re-Sync the modules.


STEP ONE

Ensure the cars battery is fully charge or even better on a charger

STEP TWO

Plug in Foxwell and select BMW mode and then find your VIN or manually input your car. Allow the unit to run until you are at the Diagnostic/Service screen

Select “Service”

https://www.flickr.com/gp/149279977@N03/h5oxNt

STEP THREE

Navigate and select “Drive” option

https://www.flickr.com/gp/149279977@N03/R1EF2b

STEP FOUR

Navigate to “Electronic Car Immobilisation System” and select

https://www.flickr.com/gp/149279977@N03/U20a60

STEP FIVE

Select “DME (DDE) - EWS-II Adjustment”

https://www.flickr.com/gp/149279977@N03/6o8eUi

STEP FIVE

On the next screen select “option 2” which is starting value adjustment.

https://www.flickr.com/gp/149279977@N03/4Df6mw

STEP SIX

Follow the on screen instructions..... but when it says start engine it doesn’t tell you you need to remove the key completely and wait 10 seconds. Then the car should start.

STEP SEVEN

Clean up Codes, go into the DDE/DDM module read the codes 4A63 code will still be there, so clear the code and then rescan you ensure it’s gone.




And then a note to myself! NEVER let the battery drain down again lol

Hope this helps someone who was in my position.

Obviously this is a guide to what I did and any damage to you own cars is your own fault.

Nice follow up! Saw your original post and this issue seems to be very common. And anyone that doesn't have a Foxwell, you are working without a very important tool for your E53. These cars are maintenance wh$#@s, and this is such an amazing little computer for many functions on these cars. I have 2 X5 and an E39 and I use this thing at least once a week on one issue/question a week if not more often. Thanks 'raptor!

Thanks for posting the steps. It is very helpful for members that are searching in the future. :thumbup:

Thanks for publishing the procedure. Nothing like a Newbie coming on this forum and making a contribution right away.

:thumbup:

:thumbup::thumbup:

this foxwell nt510 elite also can do that

I am trying to use the Foxwell NT510 elite to perform this procedure but when I select option 2 in step 5, I get an error from the foxwell tool that says “no communication”. Anyone know what’s up with this? Any workarounds?

Yes mate, some of the X5s seem to be in a Werid limbo between types of module (non-LCI/LCI).

Mine was one of them, so what you need to do is manually put the car In on the Foxwell, don’t use the Smart VIN. And then follow the procedure through.

It worked for me as this seems to be the only module on the car that does this. I did drop and email to Foxwell about it and they said it’ll be that BMW most likely just used an older/newer module on my car

So to make that clearer.

In Step 2 don’t select Smart Vin or Imput it by typing in the VIN.

Manually input YOUR cars data..... so BMW....X5(e53)......2005.....Diesel/Petrol.....so on and so on.

That should work then, if not.... if you car is within a year of the LCI model you can select a differnt year so for example my car is a 2005 and the LCI was 2004. I would select 2004 and then see if I could connect to the module.

Thanks for the quick reply! Trying it now

No worries I hope it works for you! Let us know how you get on.

Remeber the old take the key out bit! Took me ages to work that out as the Foxwell just thinks it’ll work straight away

I got through to the next screen in the procedure where it tells me to switch on terminal 15 (that’s just key in the second position, right?) and turn off engine (it’s not on to begin with) and then press continue. When I press continue it jumps to no communication screen again and then I have to restart the tool to get back to that screen.

Yeh so turn it to where the key is just before you would turn to start it. So all lights on the dash.

Hmmm is the car on a battery charger/ fully charged battery? Mine did the same unless the battery was fully charged it just outright said no communication

But my key is already turned to that position to run the scanner. So I am not doing anything with the key when I get to that screen. Am I doing something wrong? Battery is hooked up to charger now

No nothing wrong. So you get to step 5? And press continue. Then it just looses communication?

Correct. I connect my scanner, turn the key to position 2, go through manual selection (it doesn’t show my serial number when I do manual selection). I can select the starting value adjustment (reset) option and it takes me to the next screen which tells me to switch on terminal 15, turn off engine, and press continue. When I press continue I lose communication

Hmm that’s a werid one. Only thing I can suggest is make sure the battery has over 12v in it. As that’s what was causing mine to throw a wobbly. I think the module is Very sensitive to voltage change.

Only other thing I would suggest trying is have the key in position one. Get to the same point and then turn the key to position two when it asks?

I just read my codes again and there was a 0F ews voltage code—so maybe the battery did get too low. I’ll measure it now.

Ahh that might be it. If you have got some time just go grab a brew and let the battery charge up for a while, then come back. Mine was at somthing stupid like 11.5v and the buggar just said No lol

I’m so paranoid is now I’ve got a solar panel charger I leave connected when I go away for a week or two!

I’m guessing the module has some coding in it that says anything too low it just disconnects the module. Which I guess is how the thing de-syncs in the first place

I’m at 11.93. I’ll let it sit for a bit and report back :)

Yeh give her a while and it should go through once she’s over 12v ��

The battery is at 12.06 with the key in position 0 but drops to 11.9 when I switch the position 2 to run the scan tool.

Just give it a little longer, get it so it’s definitely over 12v when the key is turned.

Ok now I’ve got it hooked up to my other car, which is running, so I’ve got 12.5+ volts on my multimeter at the battery. And I’m still getting no communication :(

Ahh damn, I’m not sure what else to suggest. Try using the smart VIN function again? As maybe your initial thing was due to low voltage.

Sorry I’m just throwing out suggestions now

Thanks so much for all of your help. I think I’m going to get a usb cable and try it using INPA.

Solved! I was able to reset the EWS/key code using INPA. All good now :)

I couldn't get my Foxwell to resync DDE & EWS a few months back when this happened to me. Had to tow it to the local indy and they used INPA too. I think you can do it with BMW Scanner but Windows updates killed mine at the time.

I was having the same problem but I updated my Foxwell with FoxAssist, restarted, used SmartVIN, and then it had a third option that said "Special Features" as a third option aside for "Diagnosis" and "Service", and I followed the EWS adjustment instructions. They were MUCH better this time and we had success in getting the car running.