Bad headlight ground, need advice

[niSm095]

I've got an issue with the wiring for headlights on my 91 240- corner lights come on but no low beams/high beams. touching a volt meter to the plug I found it was getting 11.82 volts when I grounded it to the chassis, and only .04 when the ground probe was touching the ground pin on the headlight plug.

I'm assuming this is a bad ground then, yes? Where do I go from here? Do I probe for continuity along the harness in the driver's side fender? or is there a specific ground wire or something that this points to?

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since that post opened up the wiring harness in the fender and found the wires for headlight ground. In checking the resistance this is what I found:


In this picture you can see that when I make a new ground, the headlight works.
http://25.media.tumblr.com/tumblr_m4a4ynMiD51r8xfg6o1_500.jpg

When I'm checking for resistance, I touch one probe to the headlight ground, and one to my new ground. I get an audible beep and '0.0' reading. So why does my headlight not work..?
http://25.media.tumblr.com/tumblr_m4a4ynMiD51r8xfg6o2_250.jpg
http://24.media.tumblr.com/tumblr_m4a4ynMiD51r8xfg6o3_250.jpg

[fliprayzin240sx]

So ground the damn thing. Cut the negative, put a ring connector on it, tie it down on one of the screws/nuts on the rad support.

[niSm095]

well..I can do that of course..just wanted to see if finding the underlying issue was feasible first

[fliprayzin240sx]

You can...that means cutting the harness open and tracing the wire to see where its broke.

[niSm095]

updated...anyone?