Wiring diagrams for 3500HD Sprinter doors?

What happened to the good ol' days when you could buy a shop manual for a vehicle? I have a 2018 Tiffin Wayfarer and I'd like to add the Mercedes Sprinter puddle lights for the bottom of the cab doors. I have the lights, which pop right into the plastic mounts left for them, but I don't know how to wire them up.

Anybody know how to get a copy of the wire harness diagrams / connector pin-outs for the driver and passenger doors on the Sprinter cabs? I'm assuming these are pre-wired for puddle lights given the sockets are there on the door bottoms and they appear in parts diagrams, but on the chassis cabs they just chose not to hook them up.

Thanks!

Best,
-Mark

__________________
2018 Tiffin Wayfarer 24BW
2013 Fiat 500 Turbo Dinghy
 

autostaretx

Erratic Member
The 2007 diagrams are here:
service: http://www.diysprinter.co.uk/reference/2007-sprinter-service-information.pdf
wiring: http://www.diysprinter.co.uk/reference/2007-sprinter-wiring-information.pdf

The driver's door wiring from a 2010 is here (print, cut and paste to create a left-to-right document): View attachment 2010DoorWiring.pdf

You're probably looking at/for units E17/9 and E17/10 on that document, with the connectors being X34/35 and X34/36
For the passenger side, there are the intermediate connectors X35/43 and X35/2 (the wiring to the far side).
On the 3-page spread, they're on the left page at horizontal coordinate 9 thru 11.

The 2018 has probably changed a few things, but overall, the above may be helpful.

Whether or not the driver's door module has been programmed to operate the lights is another question.

--dick
p.s. 3rd party 2007 diagram: http://diysprinter.co.uk/reference/07_Wiring-sprinter-2500.pdf
 
Last edited:
The 2007 diagrams are here:
service: http://www.diysprinter.co.uk/reference/2007-sprinter-service-information.pdf
wiring: http://www.diysprinter.co.uk/reference/2007-sprinter-wiring-information.pdf

The driver's door wiring from a 2010 is here (print, cut and paste to create a left-to-right document): View attachment 106006

You're probably looking at/for units E17/9 and E17/10 on that document, with the connectors being X34/35 and X34/36
For the passenger side, there are the intermediate connectors X35/43 and X35/2 (the wiring to the far side).
On the 3-page spread, they're on the left page at horizontal coordinate 9 thru 11.

The 2018 has probably changed a few things, but overall, the above may be helpful.

Whether or not the driver's door module has been programmed to operate the lights is another question.

--dick
p.s. 3rd party 2007 diagram: http://diysprinter.co.uk/reference/07_Wiring-sprinter-2500.pdf
Huge thanks! Appreciate the pointers! :thumbup:

Best,
-Mark
 
Well it appears the wiring harnesses and connectors on the 3500HD chassis does differ from the van's behind the door panels. No joy hitting the easy button to install and connect up door exit / puddle lights. I ended up taking power from my center roof console courtesy lamps by soldering some feeder wires to it's circuit board where the light bulbs make contact. Then I had fun fishing all that wire to bottom of both doors. Good news is my Class C RV now has door exit / puddle lamps just like the vans and class Bs.

Best,
-Mark
 

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