73 dash, side marker and tail lights out
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Possible headlamp switch issue.
The brake and turn signals are feed from a different circuit.
The tails, markers and and dash lights feed from the headlamp switch. I have an isolated schematic of the entire circuit at the shop, but I don't think I have it here.. I'll check and post if I do.
But the headlamp switch feeds power to all of these items. I believe it is on the brown wire to the rear lamps at least it is on the 69 we just did. If the same, the brown wire runs from the rear lamps and the side makers straight to the headlamp switch.
Willcox
The brake and turn signals are feed from a different circuit.
The tails, markers and and dash lights feed from the headlamp switch. I have an isolated schematic of the entire circuit at the shop, but I don't think I have it here.. I'll check and post if I do.
But the headlamp switch feeds power to all of these items. I believe it is on the brown wire to the rear lamps at least it is on the 69 we just did. If the same, the brown wire runs from the rear lamps and the side makers straight to the headlamp switch.
Willcox
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Possible headlamp switch issue.
The brake and turn signals are feed from a different circuit.
The tails, markers and and dash lights feed from the headlamp switch. I have an isolated schematic of the entire circuit at the shop, but I don't think I have it here.. I'll check and post if I do.
But the headlamp switch feeds power to all of these items. I believe it is on the brown wire to the rear lamps at least it is on the 69 we just did. If the same, the brown wire runs from the rear lamps and the side makers straight to the headlamp switch.
Willcox
The brake and turn signals are feed from a different circuit.
The tails, markers and and dash lights feed from the headlamp switch. I have an isolated schematic of the entire circuit at the shop, but I don't think I have it here.. I'll check and post if I do.
But the headlamp switch feeds power to all of these items. I believe it is on the brown wire to the rear lamps at least it is on the 69 we just did. If the same, the brown wire runs from the rear lamps and the side makers straight to the headlamp switch.
Willcox
Recheck the TAIL fuse using a test light and check the clips that hold the fuse,a poor connection between the clips and fuse can fool you.If the fuse is good and right and left clips holding the fuse are hot then you need to go to the headlight switch and check the orange for power.
If the orange is hot,check the brown(and the green)(switch on),if the brown is not hot then the headlight switch is bad(providing the orange and brown are making good connections at the switch).
That should be good for now.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Recheck the TAIL fuse using a test light and check the clips that hold the fuse,a poor connection between the clips and fuse can fool you.If the fuse is good and right and left clips holding the fuse are hot then you need to go to the headlight switch and check the orange for power.
If the orange is hot,check the brown(and the green)(switch on),if the brown is not hot then the headlight switch is bad(providing the orange and brown are making good connections at the switch).
That should be good for now.
Pretty quick and easy to do too.. All this is fresh in my head, I just got through trouble shooting one in the shop... Roger, I've been working on a simplified schematic for this too... Should make explaining easier for everyone. Only downfall.. it's on my office computer and it's turned off from the storm last night.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
I usually lower the steering column and then lower the speedo/tach assembly just far enough to get to the switch. I also loosen most of the dash screws clear over to the passenger door to give more flex and to keep from cracking the dash parts.
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