Car Data | BMW X5 4WD Late 2008 -

SmartCAN and ByPass Relay towbar wiring instructions for an BMW X5 4WD Late 2008 -

The boxes below show key fitting details Cable entry point, CAN connection details, etc. Alphanumeric references (e.g. A4) refer to the car map at to foot of the page .
Socket cable entry point M60
Longer Cable Required? N/A
Power Source Fusebox.
Constant Live Colour
Fusebox/Battery Location JR45
Add Fuse
Compatible SmartCAN Module/Kit TF2302, TF2352
CAN HI/LO Location JR47 or B9 plug above brake pedal
HI/LO Pins/Colours HI Orange/green, LO Green
Hard Brake Connection JR45 Black/yellow
Is Data Two Way? Yes
Link to Recode Data N/A
CAN also at B9.
Functions added automatically: C2 on dash; PDC; FCO.
Very early models: if, with CAN module fitted, air conditioning only blows cold when trailer isconnected, this is caused by a BMW software error. BMW will update coding.

Wire colours and locations, use LED type probe to confirm correct wire in given location.

Notes If trailer brake lights latch on use relay reverse circuit for brakes. In diesels, low battery can cause bypass relay to tick: charge battery.
Compatible ByPass Relay TF2218/7 Series
Other Appropriate Relay TF2302. Kit:TF2351
Lights Wire Colours Alternative Location Comment
LH Flasher Blue/Green - JR48 -
Fog Light Yellow/Black Black/White JR48 -
RH Flasher Blue/Black - JR48 -
RH Side Light Grey/White - JR48 -
Brake Light Blue/Black Yellow/Black JR48 Check correct wire
LH Side Light Grey/Purple - JR48 -
Reverse White/Yellow - JR48 -
Wiring Diagram