I will give AJR a call tomorrow - it may well have been the headlamp self levelling ECU, I'll find out how they resolved it and post their solution 2007 Zermatt Silver TDV8 Vogue SE - now sold but was a great car!

Thanks

I had the same prob with drivers side headlight ecu and reader would only read some of the ecus so I unplugged the headlight one and the reader found all the other ecus and told me the headlight one was not found. 2010 3.6TDV8 Stornoway Grey/ Black interior - gone
2005 4.4V8 (M62) Bonatti Grey/ Parchment interior - gone
1998 4.6HSE Blue/ Cream interior (can't remember exact colours) - gone
1977 White - gone (should have kept)

Its usually can short killing all comms
so yes unplugging and cleaning dogy connector will bring the comms
(do not reconnect )

Well, just spent an hour looking for the elusive headlamp leveling ecu, no sign of it, turns out that according to RAVE it was only fitted to cars with Vin numbers 2A100042-3A117361.
As my car is outwith these numbers I assume it isn't fitted with one, although the cabling to the headlights seems to be there. Is it possibly located elsewhere to that shown in Rave?
Back to the drawing board.

Unplugged both headlights still no joy.

passenger (LHS) A pillar (under little plastic cover under dash)
pink connector (if its there)

Recentaly had 04 4a with same issue and it was there

Which plastic cover, the black one with the footwell light in it or the black trim that sits vertically around the bottom of the door opening? Doesn't seem to be in either position, certainly no pink connectors. My Vin is 4A.....

This is it shown in RAVE

Click image to enlarge

you are looking in the right place seems no luck this time

The holes for mounting the ecu are in the side panel and it appears there is a headlight level ecu is fitted somewhere as the cables go into each of the headlights unless the harness wasn't modified when the ecu was omitted.
It seems that the ecu may have been repositioned at some time either by LR as a modification or by the previous owner which I doubt.
From my reading it does seem the dead socket may well be caused by a fault in either the i bus or k bus, probably as a result of corrosion in a connector plug at an ecu. The question is where, not all the ecu plugs are liable to corrosion, most are inside the car. By any chance are the headlight ecu/ballasts a known problem due to corrosion?

Try the following, turn the key to the ON position and proceed with measuring the voltage between pin 5 and 8 of the OBD port using a volt meter. Repeat the same process between pin 5 and 7.

Cheers

Yes I can do that, can you tell me which way the pins are numbered.
Thanks

Does this help ?

Certainly does help, Thanks
I'll post what voltages I get tomorrow, I'm intrigued

Wow........me..........helping NDFI with an electrical problem  .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
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