Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: IrishKenCJ7 on May 18, 2015, 01:21:15 PM

Title: 94 YJ dims weak and headlight not working
Post by: IrishKenCJ7 on May 18, 2015, 01:21:15 PM

Any ideas why the left headlight might not be working in 94 YJ (LHD). The right headlight is working perfect so does this rule out the switch in the cabin and on the signal lever.

I changed the bulb to a new H4 and its the same thing. When using dips its much weaker than that right one and when I put on full headlights the light goes off for a second and back on again but still only the weak dim. The full headlight never engages for the left light. I;ve cleaned the contacts etc.  Is it an earth issue, but all contacts seem fine.  Do I just need to trace it with a multi meter?

Won;t have time to order a new part so anything I can do for a MOT end of week?

Thanks in advance.
Ken

Title: Re: 94 YJ dims weak and headlight not working
Post by: Mike Pavelin on May 18, 2015, 06:42:46 PM

Probably a bad ground.

Title: Re: 94 YJ dims weak and headlight not working
Post by: bgbazz on May 18, 2015, 07:00:02 PM

 :iagree:...with Dr Mike. Weak light, intermittent output usually indicates a problem in this area.

Title: Re: 94 YJ dims weak and headlight not working
Post by: Dave69 on May 18, 2015, 09:24:12 PM

trace the brown wire to see where it connects to the body, possibly yellow and white for the main and dipped beams