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Old 01-16-2014, 06:11 PM   #1
Budman56
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Tilt column help needed please

Need help guys, I have a tilt steering column in my 66 with a 65 wiring harness, I have to hook up the column to the wiring harness but cant seem to find a wiring diagram for the tilt column. I have been told that most if not all the tilts from 67 to 84 are gm columns and the color codes are the same. I figured out that the yellow wire is the left turn signal and the green is the right. I need to know what the other color wires do.

tilt column wiring
1) black = ?
2) purple = ?
3) light blue= ?
4) white = ?
5) dark blue = ?
6) gray = ?
7) yellow = left turn
8) green = right turn
9) brown = ?

65 wiring harness
1) black = ?
2) purple = ?
3) light blue= ?
4) white = ?
5) dark blue = ?
6) gray = ?
7) yellow = left turn
8) green = right turn

I have tried hooking them all up (matching color) but that didn't work the battier died and when you hit the brake pedal the front hood indicator lites would come on.
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MY 65 C20 BUILD
http://67-72chevytrucks.com/vboard/s...d.php?t=483346

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Old 01-16-2014, 07:00 PM   #2
ray_mcavoy
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Re: Tilt column help needed please

tilt column wiring
1) black = horn ... the horn button grounds this wire to activate the horn relay
2) purple = feed from flasher
3) light blue= LH front turn signal
4) white = feed from brake light switch
5) dark blue = RH front turn signal
6) gray = illumination for auto trans gear indicator
7) yellow = LH rear turn signal & LH brake light
8) green = RH rear turn signal & RH brake light
9) brown = feed from hazard flasher (your 65 won't have this)

65 wiring harness
1) black = horn (same as the black wire on the tilt column)
2) purple = turn signal feed from flasher (same as purple wire on tilt column)
3) light blue= LH front turn signal (same as lt blue on tilt column)
4) white = feed from brake light switch (same as white on tilt)
5) dark blue = RH front turn signal (same as dk blue on tilt)
6) gray = illumination for auto trans gear indicator (same as tilt)
7) yellow = LH rear turn signal & LH brake light (same as tilt)
8) green = RH rear turn signal & RH brake light (same as tilt)

So with the exception of that brown hazard flasher feed, all of the other wires should be a direct color to color match. If that doesn't work (and everything was working okay before the tilt column swap) I would suspect a defective switch in the tilt column.
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Old 01-17-2014, 01:51 AM   #3
Budman56
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Re: Tilt column help needed please

Thank you ray_mcavoy here is the wiring diagram for future use.
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File Type: pdf GM COLUMN TO 65 C10 WIRE HARNESS WIRE CODE.pdf (89.7 KB, 123 views)
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http://67-72chevytrucks.com/vboard/s...d.php?t=483346

......................_____
.........________//__{\_____
,,,,,,,/__(O)___//___/__(O)_/
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