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Simon
07-22-2017, 09:48 PM
Well after installing a Blue Seas ACR to isolate my house batteries on my 2004 Sprinter, I musta been a bad boy along the way somewheres;
Now I am without headlights blinkers flashers and wipers!
All fuses in steering column and underneath the seat check out fine, and I also tested all the relays and they are fine.
I would appreciate wisdom from any of you that have some bright ideas! 💡💡💡

autostaretx
07-22-2017, 10:24 PM
Coincidental failure of the multifunction switch?

Since i just created it for another thread, here's a one-page-holds-all schematic of the turn signal system:

https://sprinter-source.com/forum/attachment.php?attachmentid=88011&d=1500748183

... plucked/assembled from the pages of the 2003 service manual.
You can download a 2006 manual (same as yours for this issue) here: http://diysprinter.co.uk/reference/2006-VA-SM.pdf
Section 8W is the wiring, sub-sections 8W-50 through 8W-54 cover the lights.

added: did you check the fuses in the on-battery power distribution block???

https://sprinter-source.com/forum/attachment.php?attachmentid=87519&d=1499475279

--dick

Cheyenne
07-22-2017, 10:24 PM
Have you checked the fuses in the PDC on the battery Positive post?

Have a look at this recent post for details... https://sprinter-source.com/forum/showthread.php?t=57648&highlight=pdc

Keith.

Edit. Crossed posts with Dick!

Simon
07-23-2017, 01:15 AM
Yep- I did check all the PDC fuses and they're all fine.
I will dive into the Steering column/Multifunction switch next- Thanks autostaretx. Any suggestions on how to test the switch?