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1970 roadrunner no brake lites

Posted By: dougc426

1970 roadrunner no brake lites - 04/16/14 01:45 AM

Hey guys i need help on this one.No brake lites but have running lites,replaced brake switch,new NOS turn signal harness.When i put on the 4-way flashers nothing happens till i put the turn signal on left or right. new flasher fuses are good
need some help on this one wow?????
Posted By: therocks

Re: 1970 roadrunner no brake lites - 04/16/14 01:53 AM

Sounds like the turn switch.I hope you checked for power to the switch already.If it has power then jump the wires at the stop switch.Then check connector under column for power in.If you have power in and no lights and connector is good switch under the wheel is bad.Rocky
Posted By: RapidRobert

Re: 1970 roadrunner no brake lites - 04/16/14 02:10 AM

You swapped those parts to fix the no brake light issue & no sucess or the issue developed after they were installed & it was good for a period of time after their installation? (1) seperate the dangling connector under the steering column & with your meter on the column half of the harness see if you have continuity between the white wire and the 2 wires going to the R/L large filament brake lights with the stalk in neutral ( www.mymopar.com ) will have those 2 colors for you. (2) raise the stalk up & one of those 2 colored wires will go dead. (3) lower the stalk & that wire will be hot again and the other colored wire will go dead (4) in the body half of the pull apart connector see if the white wire is hot when you press on the brake pedal. (5) in the (same) body half of the pull apart connector jump fire to the 2 wires going to the rear R/L brake lights, mymopar has the colors. If no go on (5) then (6) seperate the pull apart connector behind the DR kick panel & jump fire to the 2 respective wires to the same R/L brake lights. It sounded like you have flashers at some point & if so (5) & (6) are good) but holler with what you come up with
Posted By: therocks

Re: 1970 roadrunner no brake lites - 04/16/14 02:13 AM

Really dumb question but did you check the fuse?Do the bulbs light with TS on?The running lights have nothing to do with brake lights.Two seperat systems and elements in the bulbs.Rocky
Posted By: 71birdJ68

Re: 1970 roadrunner no brake lites - 04/16/14 02:16 AM

Grounds?
Posted By: skicker

Re: 1970 roadrunner no brake lites - 04/16/14 01:47 PM

Quote:

Grounds?




That's what I'm wondering... I had to individually ground each of my taillights to get everything to work correctly.

Attached picture 8114379-0901121432a.jpg
Posted By: therocks

Re: 1970 roadrunner no brake lites - 04/16/14 10:43 PM

He says he has running light.So I figure the sockets have a ground.Rocky
Posted By: therocks

Re: 1970 roadrunner no brake lites - 04/17/14 08:27 PM

I wonder if he got them working.Rocky
Posted By: RapidRobert

Re: 1970 roadrunner no brake lites - 04/17/14 09:36 PM

We'll have to PM him if he dont holler back (soon). I wanna know what it was
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