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Tried that :(

I’ve got a Snap On Verus. It’s also been tried on several independent landy specialists diagnostic equipment. One of which was automaxis I think or autel, can’t rememebr. He said the use it for everything on L322’s so should of worked on mine. I’ve done continuity tests on all the wires from...

Apart from dismantling the car to pieces or setting fire to it i think im about done with this L322. So a recap. TD6, 2002. Cant access Airbag nor Air suspension ECU's. Air suspension inactive but as i cant access the ECU i cant read the faults. Tried two different landy specialists both with...

Been through it. As far as I can tell the bus systems tested ok.

The specialist had autologic I believe. He said they have always been able to talk to these with it.

I have a Snap On Verus, I also went to a landrover specialist and they couldn’t connect either. I asked on a Facebook group of anyone was local with a diagnostic tool and no-one replied :(

I have and not really any help at all :(

Just checked, all interior lights work

Thanks. It really is driving me crazy! Even tried different modules from a RR breaker which they promised me were good. Now all returned as none helped. Even tried a different instrument cluster!

Really? I had a look at the wiring diagram and they are wired from the BCM

I believe they all do, yes. I know the footwells do, the puddle lights do, the rear hatch lights do. Why do you ask?

Right, I cannot connect to the air suspension ECU nor the airbag ECU. I can talk to the instrument cluster, ABS, engine, gearbox, transfer box, parking sensors, steering angle sensor. The ABS ECU has the air suspension can error stored. I have done countless hours of research on forums and...

This is the header, located next to the BCU.

Went to find BCU under passenger seat and found the header I’ve been looking for! It’s the x10466. Tool all connections off. Tested wire to EAS, it’s fine. Found feed from the other header wherever it is! Connected just the EAS and still couldn’t communicate!

Done a can bus scope test. Can bus has a perfect waveform, K bus has a static 12v line with the occasional blip down to 0. Any thoughts on why this is?

Thanks. Does anyone know, is the k bus live with ignition switches off? It really REALLY would help to know

I’ve done various tests. Checked wiring from EAS to instruments and it’s complete. The ABS and EAS I can’t talk to are both on K line. I can talk the the ABS, SAS and engine/transmission.

Seeing as I can’t access EAS, Air Bag etc I’m guessing the bus is down. As I’ve tried all the usual suspects it’s now down to the plain unusual. My snap on verus does have a scope facility. Never used it so now is time to learn Yup. Just put a scope on it. No matter how small I make the...

as title, which ECU’s have a supply permanently live? In other words which components work without the ignition on? Seat adjust etc.

Yes, k line should have more than 7 volts according to this document http://www.mdv.se/bmw/bmw%20sheets/ibus.pdf But less than the system voltage ie 12. When I start the car it rises to 14v which is why I’m sure I have a B+ short somewhere.