Reverse lamp wiring diagram please

[darbuck]

Hi All,
does anyone have a reverse lamp wiring diagram for an 2008 x7 tourer 2.0 hdi 138bhp

[GiveMeABreak]

Here you are:



2632: LH rear lamps on boot lid
2631: RH rear lamps on boot lid

221: Rear left reversing lamps supply
222: Right hand reversing light supply
M2631: EARTH m2631
M2632: EARTH m2632

[darbuck]

Thanks a million Marc for the speedy response

[vallium]

Thank you from me too, but unfortunately I don't really understand the diagram.

That's multiplexed wiring from BSI? Where does bunch of wires going out to boot lid come into play?

[GiveMeABreak]

If you can't understand the wiring diagrams, I'm not sure how they are going to help you...

2632 is the left hand rear lamp on the tailgate lid
Wire 222 is the supply from the BSI (not multiplexed).
Wires preceded with 'M' are earths.

So here you have the circuit for supply and earth, along with the pin numbers to check.

[vallium]

So this is just reversing lamp circuit.

For LH reversing lamp I'm looking for wire marked 221 from pin #15 on BSI to pin #2 on rear lamp. But there is no data on pinout of connectors in-between.

Ground is probably shared for whole light so that should be fine.

[wheeler]

But there is no data on pinout of connectors in-between.

There is another page to the diagram (not shown above) that is more detailed & shows the route of the wire in more detail. Eg if it goes through any inter connectors or splices and which harness its in. As the wire code is different at both ends this would suggest there is a change somewhere, at a guess without seeing the diagram id say where it joins the tailgate harness is the most likely change.

[GiveMeABreak]

[wheeler]

Thats the one.
So you can see wire 221K leaves the BSI from the pin 15 of the 16 way black connector as part of the harness 46HAB, It then travels through pin 15 of inter connector IC82A (which is a 16 way black connector) where it changes to wire 221 then into harness 76VL and into pin 5 of the connector on the back of the lamp unit.

[vallium]

Thank you both, will check over the weekend