I am trying to figure out why the back lighting on my radio doesn't work. On the bench the lights work fine.
Looking at these diagrams it makes no sense to me.
Typically in most domestic cars +12v is provided to one side of the illumination circuit when the headlights are on and -12v variable is provided to the ground side via the headlight switch.
From what I can tell in these diagrams the Orange wire is +12v when the lights are on but the Blk/Yel wire is also +12v?
Take a look at the fuse box schematic and see if that makes any sense.
I have already tested the orange wire with the lights on. I get +12v at the radio harness.
The Blk/Yel wire also gets +12v with the lights on???!!?!?
If anyone has any insight into what else I can check let me know.
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