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Old 11-22-2012, 08:35 PM   #1
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cj7 tail lights work but break lights and turn signals dont

I just bought my first jeep today its a 1980 cj 7 it was a farm jeep and a guy bought it as a project then decided to sell it so I picked it up it looks like it's been sitting for a long time the motor didn't even hesitate to crank over and all the lights came on but it doesn't have working break lights turn signals or interior lights on the dash anyone know what I should check after I look at fuses?

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Old 11-22-2012, 10:27 PM   #2
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Quote:
Originally Posted by rus06 View Post
I just bought my first jeep today its a 1980 cj 7 it was a farm jeep and a guy bought it as a project then decided to sell it so I picked it up it looks like it's been sitting for a long time the motor didn't even hesitate to crank over and all the lights came on but it doesn't have working break lights turn signals or interior lights on the dash anyone know what I should check after I look at fuses?
First I'd look at the brake light bulbs, If they appear ok then use a test meter to see if you are getting 12 v back there. Being a farm Jeep the wiring may have been damaged and not fixed. Maybe the brake light switch. Basically everything to do with the brake/turn signals.

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Old 11-23-2012, 09:15 AM   #3
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Check fuses first.
Inspect the wiring. Its pretty easy to track, all of the lights should be grounded to the tub somewhere as opposed to having a positive/negative return so you may find a loose ground.
From there it comes to switches, its a really basic system just takes a little time to look at and trace.
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Old 11-23-2012, 11:42 AM   #4
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Thanks for the reply's guys from what I can tell on it it looks real easy to work on I've got alot of work to do to it and I can't wait to tear into it I only paid 1500 for it and the body is in great shape I gotta get something to swap out the iron duke 4cyl though that's the only downside to it so far
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Old 11-22-2013, 05:28 PM   #5
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sane issues

im having the same issues on my 80 cj7 with iron duke tail lights work great no brake lights turn signals or int lights besides highbeam indicator.....whats the best place to start with wiring i just replaced bulbs and nothing changed
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Old 11-22-2013, 05:41 PM   #6
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bad turn signal switch is a possibility because the brake light circuit also goes through the turn signals,or the plug under the dash that feeds the turn signals,also,as mentioned above,the fuse..make sure that it has good 1157 bulbs..if the ground was the problem then it would probably only be affecting 1 side and the tail light probably wouldn't be working either

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