LWR LCM - Page 3

Clavurion · #21 02-21-2022, 08:08 AM

Quote:

Originally Posted by Bmwe5320023.0

Question for NCSExprerts

When I was coding the LCM module
It reads version 19 in the NCSExprert, however it's actually version 24 in ncsdummy
Just wondering why it's like this

Those used files are picked up according to ZCS. So C19 version is what you originally had from the factory. If you choose "Read ECU" it should change that coding index shown.

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Bmwe5320023.0 · #22 02-21-2022, 01:10 PM

I see, I'll test it out.
My stupid LRA module now gives me this error that I didn't have before.

Considering I'm also getting an error trying to code this LRA module, maybe it's glitchy and I'll need to try to install another LRA module

Bmwe5320023.0 · #23 02-22-2022, 11:52 AM

I'm suspecting the terminal 30 error was caused by the battery.
It's now gone.
When I do a full scan with bmwscanner, there are no errors on LRA module.
Then if I scan one more time just the LRA module, it gives an unknown error.

And it won't go away.

But here's the kicker. If I turn on the headlights and scan again and clear the code, no errors come back and everything is green. I guess bmwscanner has a bit of a hard time accessing LRA if lights are off.

Looks like I can finally leave it alone

chasers36 · #24 09-17-2022, 05:33 PM

Quote:

Originally Posted by Purplecty

I have an 02 4.6iS with Xenon non adaptive headlights. I have retrofitted a 6961141 w/ manual LWR LCM4 to my E38 with xenon headlights and for the auto headlight feature and the additional bulb check options. I also retrofitted a 6960253 without LWR to a friend's E38 with xenon headlights as well and they have been fully functional. I copied this info from terraphantm on another forum who is very knowledgeable on most BMW electronics of this generation.

"If you code it for your car with NCS Expert, it will set everything in the module appropriately. For LWR specifically, pre-2003 cars need "LWR_AUT_EXTERN" to be set to aktiv.

LCM III cars use a separate module, and that module still works fine with an LCMIV - the LCMIV's internal circuitry just won't be used (and you can therefore use a non-LWR LCM IV on pre-2003 E39s). 2003 E39s came with LCMIVs and have the sensors and motors wired directly to the LCM instead of the separate module - those do require an LCMIV with LWR built in)."

I am under the impression I should have the same results with a 6961140 without LWR on my x5 as well even though realoem shows the correct one to be 6961141 which is manual LWR.Attachment 79636 Attachment 79637
Attachment 79638

Sorry to revive an old thread, but I'm curious if you knew if it is possible to do the "LWR-AUT-EXTERN" coding in BMW scanner instead of NCSExpert.Thinking about upgrading my LCMIII to a IV, and would need to code this option, but i don't have NCSExpert software, only BMWScanner. If it isn't possible, looks like i'll be purchasing NCS to further do some necessary coding if i upgrade.