Year of Manufacture *: 2007
previous garage had stripped both rear doors and used a big thick length of wire to piggy back live , earths and what he thought to be CAN bus wires to no avail.
It was then brought to me...VAG COMM talks to all door modules apart from nsr.(the nsr window does work tho) I checked live and earth to NSR and all ok.
CAN GATEWAY module shows a fault of no comms with nsr door.
I scoped LIN BUS at nsr and just shows constant 6volts with ignition on, no glitch,just constant 6 volts
I then scoped LIN at osr and nsf in door hinge area, both gave text book square wave when remote operated.
I then rechecked all 3 outputs from drivers door module, again two good square waves and one 6volt.
I then ordered a new drivers door module........... ive now got no comms with drivers door module and fault code of no comms with drivers door module and no comms with OSR DOOR in CAN gateway ,although the fault with nsr has gone and no 6 volt on LIN. osr door has also has stopped working. if i put original module back on, i can comms with it and osr door works fine,
Looking on rosstech wiki it explains if i have a gen 4 module i may have to replace CAN gateway and nsf door module!!!!!!
Has anybody had similar??
Do you think I have a faulty module or i do need to fit other parts as per ross tech
Am i in the right place to start???
Struggling now!
MARK
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