Chrysler Repair: No low beam headlamps: 2000 Plymouth minivan, plymouth voyager, continuity test

Question
2000 PLYMOUTH VOYAGER MINI VAN 3.0 ENGINE, THE LOW BEAM HEAD LIGHTS SUDDENLY DON'T WORK, HIGH BEAM OK, RUNNING LIGHTS OK, BRAKES LIGHTS OK, JUST THE LOW BEAM. CHECKED BULBS BOTH ELEMENTS IN EACH FINE. CONTINUITY TEST OF LOW BEAM FUSE FINE, SWITCH LOW BEAM RELY WITH ANOTHER AND ITS FINE. NOW WHAT?

Answer
Hi John,
I think that you need to verify whether the low beam relay is being activated when you turn on the headlamp switch and the multifunction switch is set for the low beam position. If it doesn't click, then that would explain why there are no lows. In order for the low beam relay to be activated a double pole/single throw switch that is part of the multifunction switch on the steering column has to be closed. So you could remove the upper and lower covers on the column and verify for the multifunction switch whether there is continuity between pin 10 (orange/white wire) and pin 9 (pink wire) when in the lows position. Alternatively you could remove the low beam relay and measure for continuity between the socket for pin 85 of the relay (which is the one closest to the fuses) and pin 33 of the lower right (gray color) 36-pin plug on the junction box under the dash (the wire to pin 33 is pink), again when the lows are selected at the multifunction. If not, then the multifunction's internal contact between 9 and 10 needs to be cleaned up in order to activate the low relay. That gray plug is one of 4 at the top of the junction block, and specifically you need to check the lower right gray plug at pin 33 for continuity to pin 85 of the low beam relay socket. Let me know if you find continuity because that would dictate the the low relay would be activated when you turned on the headlamp switch to the headlamps position. And yet if the relay is not clicking, then that means ther is something wrong in the wiring from the body controller to the headlamp switch or in the body controller proper, the part that controls the low beam relay. But my suspicion is that it is the multifunction internal switch contacts that are oxidized and need to be cleaned up.
Roland
PS I am going from the '98 manual as I don't have one for 2000. But I would believe this part of the circuit is unchanged.