msd grid shift light problem

Mike Graham · 12-12-2022, 02:20 PM

I have a 7730 grid that has the shift light on (grounded) when the ignition is turned off.
It functions normally when the ignition is on. It activates at the proper rpm for the shift points. Does anyone have any experience with this?

PozQB14 · 12-26-2022, 12:37 PM

Your shift light bulb 12volt side is still powered up when the ignition is off. otherwise the bulb would not come on. The grid will likely rest at ground on the shift light output side when the grid is off. move the wire that powers the shift light bulb to another power source that is off when the ign is off

12-12-2022, 02:20 PM	#1
Mike Graham Member Join Date: Jul 2002 Posts: 389 Likes: 1 Liked 299 Times in 56 Posts	msd grid shift light problem I have a 7730 grid that has the shift light on (grounded) when the ignition is turned off. It functions normally when the ignition is on. It activates at the proper rpm for the shift points. Does anyone have any experience with this?

12-26-2022, 12:37 PM	#2
PozQB14 Member Join Date: Jun 2015 Location: Youngsville, NC Posts: 128 Likes: 24 Liked 42 Times in 17 Posts	Re: msd grid shift light problem Your shift light bulb 12volt side is still powered up when the ignition is off. otherwise the bulb would not come on. The grid will likely rest at ground on the shift light output side when the grid is off. move the wire that powers the shift light bulb to another power source that is off when the ign is off