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D3 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc |
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Thread Tools | Display Modes |
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Identifying CAN wires
The D3 features 4 CAN bus networks, 5 if ACC is installed. The factory wiring for each bus is 0.35 twisted pair and the factory wire colour for each bus is as follows:
Convenience system data bus (100 kbit/s) Orange / Green - CAN H Orange / Brown - CAN L Drive train data bus (500 kbit/s) Orange / Black - CAN H Orange / Brown - CAN L Dash panel insert data bus (500 kbit/s) Grey / Red - CAN H Grey / White - CAN L ACC data bus (500 kbit/s) Orange / Purple - CAN H Orange / Brown - CAN L Diagnosis CAN (500 kbit/s) Orange / Purple - CAN H Orange / Brown - CAN L The Convenience and Drive Train data bus both terminate at a CAN separating connector. There are two CAN separating connectors, right and left. The right and left connectors are then linked across the vehicle with a twisted pair for each data bus, Convenience and Drive Train. Dash Panel, Diagnostic & ACC data buses are all terminated at the CAN Gateway (module J533). One interesting observation is that the Dash Panel data bus has a spur to the OBD2 Port.
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Matt 2004 A8 3.7q, 1998 A4 2.8q, 1994 Coupe 2.8q SORN, Last edited by mattylondon; 23rd November 2015 at 09:28 AM. |
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Good info Matt.
Been digging through the diagrams or pulling that loom apart?
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Del |
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I was fed up of referring to the current flow and cross referencing with pinouts as I could never find my hand notes. Hopefully this is useful to someone else
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Matt 2004 A8 3.7q, 1998 A4 2.8q, 1994 Coupe 2.8q SORN, |
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Matt, again you have produced some very useful info.
Well done. Just hope I can remember where to find it when I need it
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Ray at Wigan Pier 2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore.. In progress, Nothing left to do. Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter) |
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It's been stickied at the top of the section Ray
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Confidence is the feeling you have before you know better . . . . Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs |
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Thanks Neil
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Ray at Wigan Pier 2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore.. In progress, Nothing left to do. Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter) |
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