I determined that I had a high resistance between the left headlight and the switch on the steering column. When I removed the connector from the headlight and measured the voltage on the low beam pin with a high impedance volt meter, I had the correct voltage, 12 VDC. However, when I connected small test lamp (low impedance) to that pin the voltage dropped to zero and the lamp would not light. As it appeared from the schematic, that the wire from the headlight connector went straight to the lighting switch on the steering column, I concluded that I probably had a corroded or poor connection on the steering column lighting switch. As I did not have a steering wheel puller to be able to see what was wrong with the steering column lighting switch, I jumpered a wire over from driver's side parking light to the headlight. I now have two functioning headlights, both high and low beam. The only downside to this "klunge" is that if I just want to use my parking lights, I'll have to put up with the driver's side headlight be on also. As I never drive with just my parking lights on, I can live with it. Thanks for every ones help.
Thursday, November 29th, 2007 AT 6:05 PM