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Mod | | | Forums66 Topics128,036 Posts1,055,454 Members48,422 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: May 2002 Posts: 155 Shop Shark | | Shop Shark Joined: May 2002 Posts: 155 | Turn sigs are driving me nuts..all of the parts houses have diagrams/switches for a 6-wire system...my truck has a 3-wire to the switch (yel,lt.blue,dk. blue)..I've got a short to grd somewhere...
Does anyone have a wiring diagram for this???
Geoff
68 GMC 3800 56 JD420C w/JD90 Loader
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | You will have to use separate turn lights & stop lights in the rear for that system. The yellow wire will go to the flasher & the blue wires to the corresponding turn signals. They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: May 2002 Posts: 155 Shop Shark | | Shop Shark Joined: May 2002 Posts: 155 | I know I need separate lights, but still need the wiring diagram..
Geoff
68 GMC 3800 56 JD420C w/JD90 Loader
| | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | try this, but you ahouldn't need it to find a short to ground, ya need a meter and some patience  Bill | | | | | Joined: May 2002 Posts: 155 Shop Shark | | Shop Shark Joined: May 2002 Posts: 155 | Thanks Red58 for the diagram...I've got the meter and the patience, but needed the diagram to see where the junctions are.. Actually the problem is a ground loop as the rear lights are sealed, rubber mounted units and they work without being grounded.. and that shouldn't happen...
Geoff
68 GMC 3800 56 JD420C w/JD90 Loader
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