AU3 BEM replacement....retrain or not?

kcej · 09-08-2009, 02:28 PM

If I replace the faulty BEM in my AU3 wagon with a known good one, will I need to.....

1. Do nothing to retrain it to my key?

2. Go through a retrain process (switch it on for an hour till the door locks cycle, etc., etc.) ?

3. Take it to a Ford dealer to get it retrained to be compatible with my ECU, Keys, etc.?

kcej · 12-08-2009, 05:20 PM

Anyone done this before?

Surely someone has had their BEM crash and knows the answer??

Thanks Keith

JC · 12-08-2009, 08:29 PM

I've only ever changed an ECU (not BEM) in an EF Fairmont; for that one, i didn't have to do anything special; it worked out of the box.

OK, so that doesn't help for an AU, probably, unless it's an AU1 using smartlock (maybe).

The usual advice with this swap is do 3, but if you don't need the car for a few days, maybe swap it over and try 1, and then 2 if 1 doesn't work, and then do 3 if 2 doesn't work (and make sure to post up your results).

smally289 · 12-08-2009, 09:22 PM

Ive had fun with these before ..... http://www.fordforums.com.au/showthread.php?t=11223017

kcej · 14-08-2009, 01:40 AM

Thanks guys....will try to get it going this weekend, and as soon as I have, WILL post results

Thanks again, Keith

kcej · 18-08-2009, 01:36 PM

Quote:

Originally Posted by JC

(and make sure to post up your results).

Just remembered a nephew is an ex-Ford mechanic so I asked him

Says it needs to go to Ford to be retrained to my keys, but good news is its only about $80 (plus towing of course)

Being a bit tight with money, I'll fit it myself and try the self-retrain before I spend the money, and will update the thread with my results either way.

Cheers Keith

67fasty · 24-09-2009, 11:55 AM

How did you go? I've got a similar problem as at this morning. Keen for a cheap/quick fix rather than towing the car to the dealer!

:

Ride · 24-09-2009, 04:05 PM

Quote:

Originally Posted by 67fasty

How did you go? I've got a similar problem as at this morning. Keen for a cheap/quick fix rather than towing the car to the dealer!

:

AFAIK its a dealer job, there's a unique key # programmed into both the BEM and the ECU, if these don't match then the BEM will shut you out. The idea behind it is for anti theft so that you can't use an engine from a stolen car and its ECU to run. Also you will need all sets of keys + fobs when you do get it re-programmed.

hsv.eta · 24-09-2009, 11:08 PM

So just to make sure I have understood all these (bloody AU is may more complicated than my old XH) In order to fit a new ECU one would need the ignition (including two keys), BEM, and ECU from the same car, otherwise its off to ford to have it reprogramed (if installing a new ECU with the original ignition and BEM).

Ride · 25-09-2009, 12:20 AM

That would be correct, I enquired about this when I first considered swapping the motor out, spoke to a friend who works in Ford service and a tuning shop, both said the same thing.