Scooterlawson80 Posted March 31, 2017 Share Posted March 31, 2017 Just put in a brand new headlight switch...noticed that i dnt have running lights...but if i bearly pull out on the knob they come on and sounds like a relay clicks...also when i flip my driver side turn signal i can hear 2 relays clicking...if i do the pass side just hear the one relay...any info is appriciated..ive had a few xjs but this is my first mj...btw it has no bed and no tail lights as of right now..its going to be a rig..but i may mount up some tail lights so i can drive it on the road now and then Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 31, 2017 Share Posted March 31, 2017 G107 is the ground at the tail lights, make sure it is grounded. There is a link to the electrical diagrams here somewhere, maybe someone can post it, I have it saved as a doc but no link. You'll find it on page 94 once the link is posted. Link to comment Share on other sites More sharing options...
Scooterlawson80 Posted April 2, 2017 Author Share Posted April 2, 2017 I don't have that ground...i dnt have tail lights or a bed...i dnt have that harness Link to comment Share on other sites More sharing options...
Scooterlawson80 Posted April 4, 2017 Author Share Posted April 4, 2017 Bump Link to comment Share on other sites More sharing options...
HOrnbrod Posted April 4, 2017 Share Posted April 4, 2017 Why did you replace the headlight switch? Was everything working before you did? Was the headlight switch connector burnt? Link to comment Share on other sites More sharing options...
Scooterlawson80 Posted April 6, 2017 Author Share Posted April 6, 2017 Read on another forum that someone replaced theres and it fixed it...no they wasent working befor i did it and no the connector wasent burnt or anything Link to comment Share on other sites More sharing options...
ParadiseMJ Posted April 6, 2017 Share Posted April 6, 2017 Where does the fuel pump ground if you're not running a bed...I'd say that the ground is the problem. If the "shared" ground for the fuel pump and taillights is disconnected, then neither should work. If you have trailer wiring too, there is a common wiring light failure area. So, this truck runs? Link to comment Share on other sites More sharing options...
Scooterlawson80 Posted April 8, 2017 Author Share Posted April 8, 2017 Yes..runs and drives fine Link to comment Share on other sites More sharing options...
Scooterlawson80 Posted April 8, 2017 Author Share Posted April 8, 2017 On the plug that hooks to the tail light plug..which one is ground? Theres a few black ones Link to comment Share on other sites More sharing options...
Ωhm Posted April 8, 2017 Share Posted April 8, 2017 Unless I missed something, Year, Make, Model, Engine, Year, etc, etc, etc. Link to comment Share on other sites More sharing options...
Scooterlawson80 Posted April 8, 2017 Author Share Posted April 8, 2017 88 comanche 4.0 Link to comment Share on other sites More sharing options...
Scooterlawson80 Posted April 8, 2017 Author Share Posted April 8, 2017 How can i post pics? Link to comment Share on other sites More sharing options...
Ωhm Posted April 8, 2017 Share Posted April 8, 2017 I take it your just looking for front L/R park and side marker lamps to work? All other front lamps work? Make sure bulbs and sockets are clean and good. Link to comment Share on other sites More sharing options...
Scooterlawson80 Posted April 8, 2017 Author Share Posted April 8, 2017 Yes for now...and when and if i get a bed i will tackle the rear bulbs and sockets are good Link to comment Share on other sites More sharing options...
Ωhm Posted April 8, 2017 Share Posted April 8, 2017 Need to determine if voltage is present. Need to use the electrical manual for this. http://www.bteventures.com//mj1988electricalmanual.pdf Disconnect and check for voltage on the following pin, headlamps/park ON, engine harness side. C102_4 Pg 69 Connector view Pg 75 Harness view Pg 90 Link to comment Share on other sites More sharing options...
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