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Old 02-19-2010, 01:48 PM
Jim Rotella Jim Rotella is offline
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That diode seems to be only on the '72 models. I think it's there because the '72 switch performs two tasks. It downshifts the transmission and it operates the hoodscoop door, and they do operate at the same time.

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Old 02-19-2010, 01:55 PM
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Lloyd-TX Lloyd-TX is offline
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Originally Posted by Jim Rotella View Post
That diode seems to be only on the '72 models. I think it's there because the '72 switch performs two tasks. It downshifts the transmission and it operates the hoodscoop door, and they do operate at the same time.
That's what I was thinking as well, Jim.

I just checked my '72 SM, and the diode is not documented in the F-body wiring diagram though.

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Old 02-19-2010, 03:02 PM
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TA455HO TA455HO is offline
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A diode is like an electrical version of a check valve. Energy only flows one way through a diode. I wonder why they needed it?

Edit: I looked at the picture and my guess is that is a resistor, not a diode. Those are color bands if I'm not mistaken.

Diode
http://en.wikipedia.org/wiki/Diode

Resistor
http://en.wikipedia.org/wiki/Resistor

Last edited by TA455HO; 02-19-2010 at 03:10 PM.
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