fault code

IanVW · 16-05-2008, 17:20

have a problem with a 08 octavia bud engine, customer complained of the car not starting one morning, she doesnt know whether ther was ignition lights, started eventuallywith a jump start. fault code read drivetrain databus faulty?? andy ideas?

**VRStu** · 16-05-2008, 18:24

You don't mention if it was a spurious fault or if it is still showing.

IanVW · 16-05-2008, 19:47

it keeps coming back

but she hasnt had the starting problem since

**VRStu** · 16-05-2008, 20:42

Any more info on the code?

What engine is BUD?

IanVW · 16-05-2008, 21:14

its 1.4 where is the the drivetrain databus located on the octavia 2?

Lummox · 16-05-2008, 21:36

The driveway databus is part of the can bus. Its not an object as such is a network between the engine, gearbox, brakes, dash etc.

Could be a faulty gateway unit or a poor connection. You need to have a look at the can bus network and see if any control units are dropping in and out.

fordfan · 17-05-2008, 07:24

My understanding is that each control unit has a twisted pair of communications wires. Those from the steering, brakes and transmission controllers link into the engine control unit - this is collectively known as the drive train databus. The ECU has another pair of wires which link into the gateway. The gateway allows communications between the other CAN sytems on the car such as the convenience CAN.

IanVW · 17-05-2008, 07:47

how can i look at each CAN seperatly?

Lummox · 17-05-2008, 07:53

VAG COM or dealer diagnostic equipment.

IanVW · 17-05-2008, 07:54

cheers

16-05-2008, 17:20	#1
IanVW Briskodian Join Date: Aug 2007 Posts: 44 Thanks: 0 Thanked 10 Times in 9 Posts	fault code have a problem with a 08 octavia bud engine, customer complained of the car not starting one morning, she doesnt know whether ther was ignition lights, started eventuallywith a jump start. fault code read drivetrain databus faulty?? andy ideas?

16-05-2008, 18:24	#2
VRStu Briskoda Staff Join Date: Dec 2004 Location: Hampshire Posts: 20,391 Thanks: 112 Thanked 916 Times in 823 Posts	Re: fault code You don't mention if it was a spurious fault or if it is still showing. __________________ Stu - Freedom Pimp Stu's Websites - http://www.fabia-vrs.com & http://www.octavia-vrs.com Stu's Car - 2007 Octavia vRS, Race Blue, Xenons, Columbus Navigation, Rear Parking Sensors, Maxi Dot, Light Assist, Jumbo Box, 18" Alloys, Stu's Cruise Control & OEM Integrated Bluetooth Telephone. SWMBO's Car - 2008 Seat LEON TDi Stylance, Black Magic, Sports Pack, Rear Parking Sensors. Something for Weekend - 2002 Lotus Elise RaceTech, Gunmetal, Radio, Carpet Mats.

16-05-2008, 19:47	#3
IanVW Briskodian Join Date: Aug 2007 Posts: 44 Thanks: 0 Thanked 10 Times in 9 Posts	Re: fault code it keeps coming back but she hasnt had the starting problem since

16-05-2008, 20:42	#4
VRStu Briskoda Staff Join Date: Dec 2004 Location: Hampshire Posts: 20,391 Thanks: 112 Thanked 916 Times in 823 Posts	Re: fault code Any more info on the code? What engine is BUD? __________________ Stu - Freedom Pimp Stu's Websites - http://www.fabia-vrs.com & http://www.octavia-vrs.com Stu's Car - 2007 Octavia vRS, Race Blue, Xenons, Columbus Navigation, Rear Parking Sensors, Maxi Dot, Light Assist, Jumbo Box, 18" Alloys, Stu's Cruise Control & OEM Integrated Bluetooth Telephone. SWMBO's Car - 2008 Seat LEON TDi Stylance, Black Magic, Sports Pack, Rear Parking Sensors. Something for Weekend - 2002 Lotus Elise RaceTech, Gunmetal, Radio, Carpet Mats.

16-05-2008, 21:14	#5
IanVW Briskodian Join Date: Aug 2007 Posts: 44 Thanks: 0 Thanked 10 Times in 9 Posts	Re: fault code its 1.4 where is the the drivetrain databus located on the octavia 2?

16-05-2008, 21:36	#6
Lummox U18 Automotive Join Date: Sep 2003 Location: Newport Pagnell Posts: 21,718 Thanks: 22 Thanked 631 Times in 541 Posts	Re: fault code The driveway databus is part of the can bus. Its not an object as such is a network between the engine, gearbox, brakes, dash etc. Could be a faulty gateway unit or a poor connection. You need to have a look at the can bus network and see if any control units are dropping in and out. __________________ Unit 18 Automotive Services now open Servicing, repairs, modifications you name it we do it. Cupra console bushes at special price, PM for a very competitive quote.

17-05-2008, 07:24	#7
fordfan ECUless Join Date: Mar 2005 Posts: 1,947 Thanks: 28 Thanked 223 Times in 194 Posts	Re: fault code My understanding is that each control unit has a twisted pair of communications wires. Those from the steering, brakes and transmission controllers link into the engine control unit - this is collectively known as the drive train databus. The ECU has another pair of wires which link into the gateway. The gateway allows communications between the other CAN sytems on the car such as the convenience CAN.

17-05-2008, 07:47	#8
IanVW Briskodian Join Date: Aug 2007 Posts: 44 Thanks: 0 Thanked 10 Times in 9 Posts	Re: fault code how can i look at each CAN seperatly?

17-05-2008, 07:53	#9
Lummox U18 Automotive Join Date: Sep 2003 Location: Newport Pagnell Posts: 21,718 Thanks: 22 Thanked 631 Times in 541 Posts	Re: fault code VAG COM or dealer diagnostic equipment. __________________ Unit 18 Automotive Services now open Servicing, repairs, modifications you name it we do it. Cupra console bushes at special price, PM for a very competitive quote.

17-05-2008, 07:54	#10
IanVW Briskodian Join Date: Aug 2007 Posts: 44 Thanks: 0 Thanked 10 Times in 9 Posts	Re: fault code cheers

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