As many of you may know, I am rebuilding the engine compartment wiring
harness in my Syncro (93 Eurovan, 2.5L,I5) after an engine fire.

I am stripping down a 93 Eurovan engine harness to make my new harness.

What is the functional difference between the Brown ground wire and the
Brown/White wire?  What if I use the Brown/White circuit instead of just
Brown (direct ground)?

Thanks.

-Dick Wong-
78 Scirocco
Original Owner
87 Vanagon Syncro 2.5 (slightly crispy)
Third Owner
12 Golf TDI
Original Co-Owner