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OD Switch Wiring Question

62BT7

Senior Member
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I'm re-doing my entire dash and finally solved an earlier problem regarding my backwards/reversed OD switch escutcheon: I've determined the swtich and escutcheon are off a non-Healey car (the old/existing switch would not fit through the new dash's OD switch hole, "Normal" on the old escutcheon is on top, etc.)Rather than continue this incorrect set up (not to mention drilling a larger hole in the dash), I bought a new reproduction switch & escutcheon from Moss.

Problem: There are two wires going into the old switch, all white and white with a purple stripe. Both old and new switches have absolutely no markings to indicate which wire goes where. Zero. I've checked my color wiring chart and it's no real help.

Questions: There are upper and lower spade connections on both switches but they are oriented slightly different (both vertical on old; vertical and horizontal on new). I could just assume upper and lower are the same (but recall the on/off of the old switch was backwards) and take a flyer by plugging in upper and lower the same. But since it's backwards, should I reverse this? If I'm wrong, do I run the risk of burning anything out? Or is the switch's function simply to bridge a connection, so it doesn't make a difference? That makes no sense to me. Does anyone have a wired Moss switch? Any ideas? Many thanks.
-Tom
 

GregW

Yoda
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Hi Tom,
If your OD switch has two connections, it is either on or off. Doesn’t matter which wire goes to which terminal.
 
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