Central Locking

Hi all, I've got two faults that I'm trying to track down. Both on the central locking, it's not water ingress. Where is the Comfort System control unit located ? Is this the same as the convenience unit ?

I want to fix this before the locks stop working, right now the OSR door lock pops open when I hit 10Mph, and the courtesy light doesn't turn on with the remote unlock (double click it does).

Vagcom scan:

Address 46: Central Conv. Labels: 1C0-959-799.lbl

Part No: 1C0 959 799 B

Component: 3Y Komfortgerát HLO 0003

Coding: 00259

Shop #: WSC

VCID:

Part No: 1U6959802D

Component: 3Q Tõrsteuer.FS KLO 0004

Part No: 1U6959801D

Component: 3Y Tõrsteuer.BF KLO 0002

Part No: 1U0959811D

Component: 3P Tõrsteuer.HL KLO 0202

Part No: 1U0959812D

Component: 3Y Tõrsteuer.HR KLO 0002

2 Faults Found:

01336 - Data Bus for Comfort System

80-00 - Single-Wire Operation

00931 - Locking Module for Central Locking; Rear Right (F223)

27-00 - Implausible Signal

What signal levels should be on the CAN interface ?

Thanks for the help

Baz.