Though the motor drives my sunroof back and forth, it won't do so under the control of the "ECU" attached to the motor. LR want £400 for a new one (motor/ECU combo).

It is:




A Hall-effect sensor...
A 12V relay...
An integrated circuit...

What a rip-off! I'm happy without a sunroof - for £400, I'll employ a punka wallah on the rare occasions I feel like it.

Iv'e not used one myself, but there are companies who will repair ECU's for a fraction of the price of a new one. My lad had a repair on the ECU on his Civic type R after which it was fine, albeit his is a rather unsophisticated ek9.

all part sales are a rip off

buy a used one. £50?

If you ebay search L320 sunroof motor you’re looking at £200 to £300! If you search FIAT, Renault etc. £30 to £40!!!

https://www.ebay.co.uk/itm/Fiat-Grande-Pun...SwE9pb6Jvf

You’d maybe need to check part numbers or may swop the eprom?

RRS L320


FIAT
 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

Or a Honda Civic Motor for £25 free p&p

https://www.ebay.co.uk/itm/06-12-HONDA-CIV...SwZJBX~cgb


 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

It will be specific for rr can bus I expect.

Quote:

It will be specific for rr can bus I expect.

A cunning-plan ruined by reality!

If the ECU was good but the motor kapput this would have been a good route to take. Cheers

Still, interesting that Webasto do these as well as heaters,

Could a competent person with the knowledge to download from the chip reprogramme the replacement with the software from the original? The guy on the Disco 3 forum does this with the FFRR L322 clocks into a L320. If it’s £300 versus £30 + a reprogramme it would still be worth it. Maybe even worth just have a spare for the mechanicals. 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

what I tend to do with these things, if your cleaver. and I suspect you are!
is disconenct the relay drive coils from the circuit and connect to switch outputs, therefore having a very basic drive to open close the roof.

It will work 24 hours a day, and not good if you have kids as safety bypassed

I do it all within that circuit, so its plug n play. So a replacement can be fitted at a later date if you or new owner find a replacement cheap.

I did this with a renault window motor.

Last edited by Andy K on Fri Nov 30 2018 4:17pm. Edited 1 time in total

^^^good idea.

I did wonder about uploading the firmware to a unit from something cheaper, but suspect it will need some special software to upload it.

...can anyone suggest where I might get a wiring diagram / pin-out? I don't have the rights on Topix and Google has let me down.

If not, multimeter, here I come!

switch is negative switch

9 green/white OPEN
8 orange/yellow CLOSE

1 brown/red battery power
10 black earth
3 red LIN-Bus

Cheers
Col

Thanks.