The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-15-2013, 08:05 AM   #1
JayDubBlazer
go cyclones
 
JayDubBlazer's Avatar
 
Join Date: Jun 2003
Location: Ames, IA
Posts: 1,883
Turn signals don't work

I did a lot of googling but couldn't find info on this particular issue. My turn signals don't work but my hazards do. The only 12v supply I get over the 8 steering column wires is on the black horn wire. I did do a painless harness about four years ago but I think the wire colors are similar. My brake lights and headlights all work. I tore the turn signal switch apart and I would think that either the brown wire or the white wire would power the switches. What wires should power the switches? I just put in a new turn signal switch about a year ago.
Posted via Mobile Device
__________________
Wes



PROJECT OLE GREEN

1972 Blazer 4X4 350/700R4
2017 Silverado LT
JayDubBlazer is offline   Reply With Quote
Old 06-15-2013, 01:33 PM   #2
domeier
Registered User
 
domeier's Avatar
 
Join Date: Sep 2011
Location: San Jose, California
Posts: 784
Re: Turn signals don't work

This should help:

Black in, is horn power
Purple in, is power from the turn signal flasher relay
Black/White in, is power from the stop lamp switch
Brown in, is power from the hazard flasher relay

All grounds are made after the lamp elements
Turn indicators in dash are powered off the front turn lamps

Left turn:
Purple in to switch goes to Black/yellow out (left brake/turn lamp)
Purple in to switch goes to Black/Blue out (left front turn lamp)
Black/White in to switch goes to Green out (right brake/turn lamp)

Right turn:
Purple in to switch goes to Green out (right brake/turn lamp)
Purple in to switch goes to Blue out (right front turn lamp)
Black/White in to switch goes to Black Yellow out (left brake/turn lamp)

No turn:
Black/White in to switch goes to Black/Yellow out (left brake/turn lamp)
Black/White in to switch goes to Green out (right brake/turn lamp)
domeier is offline   Reply With Quote
Old 06-15-2013, 02:18 PM   #3
Wrenchbender Ret
Registered User
 
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,229
Re: Turn signals don't work

Its more then likely the fuse or flasher. The turn signal flasher is separate from the 4 way.
Wrenchbender Ret is offline   Reply With Quote
Old 06-16-2013, 09:53 PM   #4
JayDubBlazer
go cyclones
 
JayDubBlazer's Avatar
 
Join Date: Jun 2003
Location: Ames, IA
Posts: 1,883
Re: Turn signals don't work

It was the flasher, the flasher was only used for about 100 miles so I didn't think of that.
Posted via Mobile Device
__________________
Wes



PROJECT OLE GREEN

1972 Blazer 4X4 350/700R4
2017 Silverado LT
JayDubBlazer is offline   Reply With Quote
Old 06-16-2013, 09:54 PM   #5
JayDubBlazer
go cyclones
 
JayDubBlazer's Avatar
 
Join Date: Jun 2003
Location: Ames, IA
Posts: 1,883
Re: Turn signals don't work

And thanks for the help
Posted via Mobile Device
__________________
Wes



PROJECT OLE GREEN

1972 Blazer 4X4 350/700R4
2017 Silverado LT
JayDubBlazer is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:29 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com