I mean the high/low beam switch.
Before you go and start buying parts, finish checking things out.
The way this thing is wired; power from fuse #48 (30amp) of the underhood fuse box, is sent to the main headlight switch. When the switch is turned on, power from the main switch is sent to the hi/lo dimmer switch. Now depending on what position the dimmer switch is in, power is sent to the high beam or low beam headlight fuses. Each headlight has two fuses one for high and one for low beam element; inside each head light.
With you saying that the high beams work; we know that everything up to the dimmer switch is ok. That’s why I want to know whether the low beam fuses #21 & 22 (10amp) have power, when both the main headlight switch is turned on and the dimmer switch is switched for low beam headlights.
Now I’m also assuming that you’ve checked the headlight themselves; that the low beam portion of both headlight bulbs are not blown?
Easy to check is with a 12 volt test light; with the test light clipped to a known good ground (battery Neg). Headlights turned on and set to low beam; check whether the test light, lights when you probe the red/yellow wire (left) and the red/white (right) at the headlight connectors. If the test light lights, change the bulbs; if not go back to the under dash fuse box and test for power at the fuses like I explained before.
If this does happen to be the dimmer switch; it is part of the multi function switch and the assembly will need replacing.
No you do not need to remove the steering wheel to replace the switch; but you do need to contend with the air bag. Read up on how to disarm the system; the short version of this is to disconnect the battery and walk away for 10 or fifteen minutes. This will allow the systems back-up battery to go dead. Now with a grounding strap clipped to your shrit cuff and a known good vehicle ground (this will minimize static electricity); you’re likely now safe, as to not accidentally set off the air bag. Connect the battery for any reason or amount of time and the air bag system will become active again. Touch the wrong thing at the wrong time and you could become real familiar with what a four to five hundred pound punch in the face feels like.
Dan.