No running lights

[Scooterlawson80]

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

[Jeep Driver]

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.

[Scooterlawson80]

I don't have that ground...i dnt have tail lights or a bed...i dnt have that harness

[Scooterlawson80]

Bump

[HOrnbrod]

Why did you replace the headlight switch? Was everything working before you did? Was the headlight switch connector burnt?

[Scooterlawson80]

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

[ParadiseMJ]

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?

[Scooterlawson80]

Yes..runs and drives fine

[Scooterlawson80]

On the plug that hooks to the tail light plug..which one is ground? Theres a few black ones

[Ωhm]

Unless I missed something, Year, Make, Model, Engine, Year, etc, etc, etc.

[Scooterlawson80]

88 comanche 4.0

[Scooterlawson80]

How can i post pics?

[Ωhm]

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.

[Scooterlawson80]

Yes for now...and when and if i get a bed i will tackle the rear bulbs and sockets are good

[Ωhm]

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