Passenger side door jamb switch
 

So, I've got this little courtesy light switch thingy bothering me.

The passenger side door light switch is not seeing 12 VDC. All of the other switches are reading something close to 12 volts. After looking over a schematic, provided by The Captain, I'm having trouble actually locating where the orange wire for this switch connects to. It looks like, again according to the schematic, the orange wire branches off into two directions. The first is to a body control module and the other is the anti-theft system.

The BCM is directly behind the glove box, right?

So, I block behind the glove box is the BCM I am looking for on the vehicle. Now, does anyone know what I can do to get this door jamb light switch to work? I'd even consider by passing it just so the courtesy lights go on whenever I open the other door or tailgate.

Ideas?

Please?

LOL

Update:

So, I just finished checking the wiring from the passenger side door switch. With the voltmeter, I connected the black wire to the black grounding wire for the switch and the red wire from the meter to the orange wire for the switch. After doing this I got a reading of 1.5 VDC. I uplugged the TBC from under the hood fuse box and the lights went out. So, there is something wrong with the wiring in the BCM, right?

Well, I'm trying to figure this one out.

To date, I have replaced all three switches and found there is something wrong with the wiring on the passengers side. The grounding wire for that switch is grounded but the power, assuming the orange is the hot wire, is not registering any volt when I test it.

At this point, I just want to by pass this connection all together. Meaning, How would I wire the courtesy lights to work if just the other two switches are tripped?

im having the same problem only I cant locate my wires on the passenger side can you help me locate I have a 2000 blazer 4x4 lt thanks in advance

Not sure what level of help that you need or your test gear/experience. Here are the schematics for the courtesy lamp circuits on your truck. Let me know if you need help debugging your problem and getting your truck fixed. If so I will be glad to help and if so, what are your symptoms?:


https://cimg2.ibsrv.net/gimg/blazerf...dfe77805d0.jpg
https://cimg3.ibsrv.net/gimg/blazerf...355dea7cba.jpg

George

my 2000 doesn't have a pass door switch that I can see !

I am not sure what problem you are trying to solve or where in the wiring diagram or the passenger door and its wiring you need help with. I'll take a stab at what might be the issue.

There are a number of switches that signal door openings, key cylinder rotating and door handle lifting to the BCM for the purposes of forced entry security and courtesy lights. They are:

Drivers door: jamb switch, door handle switch, door cylinder switch

Pass fr door: door handle switch, door cylinder switch

both rear doors: jamb switches

If you are expecting a front passenger jamb switch there is not one on your truck. If that's not where you need help then tell me what wiring you are trying to figure out or what function you are trying to debug.


George

if you bypass will you share I need to do that too I have power on Bothe front and back lights but they don't light bulbs are good !

I don't understand your question


George

im trying to debug the interior lights like the map dome back light !
I have power but know grounds it weird !