What does the grey wire do? Wiring FAQ didn't help.

[oklahomaduner]

So I've ran into a problem... We put and Ididit column in and I'm in the process of adapting the wiring over. I pulled a plug from an '86 chevy truck and all the colors seem to line up just right with the exception of the '66 having a grey wire in the column plug and the new column having a brown wire. the '86 plug also has a brown wire. Now after doing a little research, i have found that the Ididit column's brown wire is for hazards, so my questions are, what is the grey wire on the truck used for, and what must i do to utilize the flasher switch on the column?

Also when I wired it up, the hazard switch on the column had to be "on" for my blinkers to work but, all the blinkers and brake lights worked fine when the hazard switch is on, but when it is off nothing works. I do not have the hood on so I can't tell if the front blinkers are on correctly.

Extra info:
New column is a tilt with blinkers and flashers only.


This is how the wires are currently hooked up
New column:----86' plug:------stock wires:
white ----------white---------white
green ----------green---------green
yellow----------yellow --------yellow
purple----------purple---------purple
brown----------brown---------grey
dark blue-------dark blue------dark blue
grey -----------light blue------light blue
black-----------black ---------black

[Captainfab]

The only gray wire I can think of is for the dash lighting. There would be one going to the column for the auto trans shift indicator light

[oklahomaduner]

That wire had power when the headlights were on so that would make sense. (I think)

Now to the other question, Any opinions on why my blinkers only work when the column hazard switch is on? I disconnected the grey wire on the truck and the brown wire (hazards) from the column and it still does it.

[Wrenchbender Ret]

The turn signals & 4 ways are on separate circuits. They have separate flashers. & the TS has a fuse. Take a test light & trace it. The TS may not work right if the front lights are not hooked up. Some flashers are made for a particular load.

[oklahomaduner]

Yea, I talking to flaming river and kinda figured it out. Haha, we'll see this weekend.
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[gimmy 64]

when i bught my clum i bught the adapter -plugged it in and everything wrked. it comes with a seperate flasher for the emergency flashers

[Woody's Hot Rods]

The grey wire is deifinitely for the column shift indicator lamp.