CAN Bus Locations
Example locations for CAN Bus wiring
Application Information
This information is provided only as a guide for location of CAN wiring in
various vehicles. Racelogic assume no responsibility for damage due to
incorrect wiring of this product.
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
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CAN Bus Locations
Audi..................................................................................................................4
BMW (Early models) ........................................................................................5
BMW (Late models) .........................................................................................5
New BMW 3 Series..........................................................................................6
BMW Mini ........................................................................................................7
Citroen C5........................................................................................................8
Fiat Stilo...........................................................................................................9
Honda Accord (new) ......................................................................................10
Hyundai Tucson .............................................................................................11
JAGUAR X-Type............................................................................................12
JAGUAR XK8/XKR/XJR ................................................................................13
Mazda 6 (new) ...............................................................................................14
Mercedes .......................................................................................................15
Mercedes C class Auto ..................................................................................16
Nissan Micra (new) ........................................................................................17
Nissan Primera (new) ....................................................................................17
Peugeot 307 estate........................................................................................18
Peugeot 307 update.......................................................................................19
Peugeot 407 ..................................................................................................20
Renault Laguna MK2 .....................................................................................21
Renault Master Van .......................................................................................22
ROVER 75 .....................................................................................................23
SAAB 95 ........................................................................................................24
SAAB 95 ........................................................................................................25
Seat Leon ......................................................................................................26
SMART ..........................................................................................................27
Vauxhall/Open Vectra MK2............................................................................28
Vauxhall Astra 2004 model ............................................................................29
Vauxhall Corsa 2004 model...........................................................................30
Volkswagen ...................................................................................................31
Volkswagen New Beetle ................................................................................31
OBD-II CAN Bus Connection .........................................................................32
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 2 of 32
CAN Bus Locations
Application Information
This information is provided only as a guide for location of CAN wiring in
various vehicles. Racelogic assume no responsibility for damage due to
incorrect wiring of this product.
CAN Bus is a widely used multiplex wiring system that has been adopted by
most vehicle manufacturers. Other multiplex systems do exist such as VAN
and J1850 but these are not compatible with CAN Bus.
Some newer vehicles have the CAN Bus wires available on the OBD-II
diagnostic connector. However, the majority of vehicle makes do not make the
CAN bus wiring available on this connector. In these cases, it will be
necessary to hard-wire the CAN interface to the vehicle CAN Bus. If in any
doubt about fitting please refer to a qualified vehicle electrician for advice.
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
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CAN Bus Locations
Audi
View of Engine Control Unit
Pin Number Description
77 CAN LOW ORANGE / BROWN
79 CAN HIGH ORANGE / BLACK
1 Ground
3 +12v Power
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 4 of 32
CAN Bus Locations
BMW
(Early
models)
Plug Number Pin Number Description
2 3 CAN HIGH
2 4 CAN LOW
1 6 Ground
1 8 12V
BMW
(Late
models)
Plug Number Pin Number Wire Colour Description
4 36 Yellow / Red CAN HIGH
4 37 Yellow / Brown CAN LOW
1 6 Brown Ground
1 8 Red / White 12V
BMW (Late
models)
View of Engine ECU
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 5 of 32
CAN Bus Locations
New BMW 3 Series
Wire Colours CAN HIGH YELLOW with RED trace
CAN LOW YELLOW with BROWN trace
Picture from New Model BMW 3 series
Wiring on rear of instrument cluster
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 6 of 32
CAN Bus Locations
BMW Mini
Wire Colours CAN HIGH Yellow / Black
CAN LOW Yellow / Brown
Remove Rev-counter by
unscrewing 2 Torx screws
on top bracket.
CAN High and CAN Low
can be found on plastic
connector.
CAN High = Yellow / Black
CAN Low = Yellow /
Brown
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 7 of 32
CAN Bus Locations
Citroen C5
*Please note that there are
two separate sets of
white/grey twisted wires on
the C5. Please check that the
white wire is marked with the
circuit number ‘9000’
Location of ECU under bonnet
CAN Bus connection
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 8 of 32
CAN Bus Locations
Fiat Stilo
Wire Colours CAN HIGH PINK / BLACK
CAN LOW PINK / WHITE
Picture from Fiat Stilo 16V
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 9 of 32
CAN Bus Locations
Honda Accord (new)
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 10 of 32
CAN Bus Locations
Hyundai Tucson
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 11 of 32
CAN Bus Locations
JAGUAR X-
Type
Diagnostic Socket
ODB2 Connector
PIN Function
14 CAN LOW
6 CAN HIGH
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 12 of 32
CAN Bus Locations
JAGUAR
XK8/XKR/XJR
Engine Control Unit
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 13 of 32
CAN Bus Locations
Mazda 6 (new)
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 14 of 32
CAN Bus Locations
Mercedes
Engine Control Unit
Mercedes
Transmission Control Unit (5 Speed Automatic)
Pin Description
30 Ground
29 +12v
L CAN LOW
H CAN HIGH
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 15 of 32
CAN Bus Locations
Mercedes C class Auto
Wire Colours CAN HIGH Green / White
CAN LOW Green
Picture from New Model Mercedes
C240
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 16 of 32
CAN Bus Locations
Nissan Micra (new)
Nissan Primera (new)
* Note that on some Nissan Primera vehicles, CAN Low is on Pin 14 while
CAN High remains on pin 6
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 17 of 32
CAN Bus Locations
Peugeot
307
estate
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 18 of 32
CAN Bus Locations
Peugeot 307 update
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 19 of 32
CAN Bus Locations
Peugeot 407
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 20 of 32
CAN Bus Locations
Renault Laguna
MK2
OBD 2 connector location
ODB2 Connector
PIN Function
14 CAN LOW
6 CAN HIGH
Engine controller. Near side under bonnet
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 21 of 32
CAN Bus Locations
Renault Master Van
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 22 of 32
CAN Bus Locations
ROVER 75
Petrol Engine Control Unit MEMS3
Wire Colour Pin Number Description
Yellow/Black 65 CAN HIGH
Yellow/Brown 79 CAN LOW
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 23 of 32
CAN Bus Locations
SAAB
95
View of Engine Control Unit
Pin Number Description
19 CAN LOW White
66 CAN HIGH Green
25 or 62 Ground
23 or 43 +12v Power
SAAB 95 ECU location
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
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CAN Bus Locations
SAAB 95
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 25 of 32
CAN Bus Locations
Seat Leon
Wire Colours CAN HIGH ORANGE / BLACK
CAN LOW ORANGE / BROWN
SEAT Leon ABS connector.
Passenger side at rear of engine bay
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 26 of 32
CAN Bus Locations
SMART
Back view of dashboard
Wire Colour Pin Number Description
Brown/Red 14 or 15 CAN HIGH
White/Black 16 or 17 CAN LOW
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 27 of 32
CAN Bus Locations
Vauxhall/Open Vectra MK2
CAN Bus on diagnostic connector of Vectra
Mk2
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 28 of 32
CAN Bus Locations
Vauxhall Astra 2004 model
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 29 of 32
CAN Bus Locations
Vauxhall Corsa 2004 model
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 30 of 32
CAN Bus Locations
Volkswagen
VW Sharan TDI Engine control unit
Wire Colour
CAN LOW ORANGE / BROWN
CAN HIGH ORANGE / BLACK
Volkswagen
New Beetle
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
Page 31 of 32
CAN Bus Locations
OBD-II CAN Bus Connection
ODB2 Connector
PIN Function
14 CAN LOW
6 CAN HIGH
Some vehicles have CAN Bus data available on the OBD diagnostic
connector. If CAN Bus is available it will usually be on the standard OBD
assigned pins which are 14 for CAN High and 6 for CAN Low as shown
above.
CAN_BUS_LOCATION_GUIDE.doc 25/01/2008
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