No Blinker Or Brake Light

Discussion in 'Intermediate CJ-5 and CJ-6 Tech' started by Jody Doiron, Aug 5, 2017.

  1. Aug 8, 2017
    Walt Couch

    Walt Couch sidehill Cordele, Ga. Sponsor

    cordele, Ga.
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    According to the wiring diagram I have of his year model (76), he is on the right track for the BAD turn signal switch.
     
  2. Aug 8, 2017
    Trailbst

    Trailbst Member

    Westerly, Rhode...
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    Tim hit it on the head. Look here. Blinkers and hazards run through here. Grounds have been eliminated, what is the commonality of the fault? The switch.
     
  3. Aug 8, 2017
    Jody Doiron

    Jody Doiron New Member

    Louisiana
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    Just driver side front and rear blinker not working. Also driver front and rear hazard not working. The driver side brake light not working. Both bulbs are good and work on the passenger side. Keep thinking, this is a real ass kicker. New steering column blinker switch arrives tomorrow, keep all those fingers crossed.
     
  4. Aug 8, 2017
    Walt Couch

    Walt Couch sidehill Cordele, Ga. Sponsor

    cordele, Ga.
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    The turn signal switch does not have a ground and does not use any so when you get your new switch just plug it in and try it without installing it in the column. That will be confirmation.
     
  5. Aug 8, 2017
    Oldriginal86

    Oldriginal86 Member

    Pasadena, Md.
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    To remove the switch/harness from the column the wires need to be pulled out of the connector. They come fairly easy with a small screwdriver to release the lock on each terminal. Once the connector is removed, tie a string to the harness. This will help installing a harness back into the column. Pull the switch up and out, untie the string and leave it inside. If you have an ohmmeter and the wiring diagram, testing can be done without removing the harness.
     
  6. Aug 9, 2017
    sterlclan

    sterlclan Member Sponsor

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    It's possible to flatten the wires against the plug enough to pull the whole thing up through. a hunk o string tied to the plug before pulling it up through will help with reinstalling.
     
  7. Aug 12, 2017
    Jody Doiron

    Jody Doiron New Member

    Louisiana
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    Well guys I appreciate all the help but I'm done, for now. The new steering column switch looks good but still no drivers side brake, hazard or blinker light. I just pulled the parking brake and checked all wires in the big harness. The passenger blinker will blink the test light but the drivers side will only light up the test light. All front and rear park lights burn normally and so do the headlights. All bulbs are good and I installed a new NAPA blinker module. I am now in rest mode until the police stop me for having no drivers side brake or blinker light. At least with lights on, all back and front lights burn. I AM STUMPED.
     
  8. Aug 12, 2017
    PeteL

    PeteL Member Sponsor

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    Have you done the obvious, and traced the particular wires to see how far they are 'hot' when they should be?

    A 12V test light with a sharp probe is a good tool for this.
     
  9. Aug 12, 2017
    Focker

    Focker Rust Never Sleeps Staff Member Sponsor

    Tri-Cities WA
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    It's time to connect an independent test wire straight from the switch to the socket or bulb. If the light works, it's a bad connection or wire with the stock setup.
     
  10. Aug 13, 2017 at 11:13 AM
    Walt Couch

    Walt Couch sidehill Cordele, Ga. Sponsor

    cordele, Ga.
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    upload_2017-8-13_11-4-58.png

    You will notice at the frame harness connector (bottom left) a LT GREEN 23 left turn and hazard. With test lite, check to see if you have power at this point (in and out). From this point the wire is a solid run to the rear light which has another connector from the loom to the lite assymbly. HTH
     
  11. Aug 13, 2017 at 3:37 PM
    Jody Doiron

    Jody Doiron New Member

    Louisiana
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    Is the frame harness the flat plug behind the parking brake? I have checked with test light there. Plug side coming from behind fuse box has blinking test light for passenger and solid light for Drivers side. If there is another frame plug, please picture it or tell me where it is. I am an old machinist by trade and electricity is not my bag. Thanks,
     
  12. Aug 13, 2017 at 7:18 PM
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
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    Yes, pretty sure that's the frame harness connector. From there it should be in a plastic loom and follow the body edge to the top of the left rear wheelhouse, where it goes through the body and down to the lights and fuel tank.
     
  13. Aug 14, 2017 at 9:13 AM
    sterlclan

    sterlclan Member Sponsor

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    Is the flasher plug good?
     
  14. Aug 14, 2017 at 9:46 AM
    Walt Couch

    Walt Couch sidehill Cordele, Ga. Sponsor

    cordele, Ga.
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    The flasher is a two prong type and used for both sides. If it works for the right side then it will work for the left side if the wiring and bulbs are good.
    For the original poster.
    I say again. So the pass side is blinking good (means the flasher ckt is good) (means the turn signal switch is good) and on the drivers side (solid light on drivers side) means the flasher is supplying power to the turn signal switch and the turn signal switch is passing the power to the drivers side wiring but the flasher is not seeing enough LOAD to make it flash. LOAD being the 1157 bulb at the left rear/and front. Remove the bulb from the light and test the two pins for power with your test light. If no test light, then you have a broken wire along the frame wire loom. If you do have power showing then you have a bad socket or a defective bulb.
     
    sterlclan and Focker like this.

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