Will a 95-96 BCM work in my 99?
12-09-2008, 01:12 PM
#1
Will a 95-96 BCM work in my 99?
I think I need a BCM as my rear license plate light (right one) doesn't work, my dome light no longer has an auto function, and my keyring light is out. Also, not sure if the bulb died, but my little push drawer near the shifter doesn't have light either.
I found one for a 95-96 (w/ keyless) and am wondering it'll work in my 99. I guess the one I need HAS to have keyless...but do the years matter?
I found one for a 95-96 (w/ keyless) and am wondering it'll work in my 99. I guess the one I need HAS to have keyless...but do the years matter?
12-09-2008, 02:59 PM
#4
Member who somehow became The President of The SE-L Club
iTrader: (19)
Join Date: Jun 2001
Posts: 16,033
The rear license plate lights are on one circuit. If the only the right bulb is out, then it's the bulb or the bulb socket. I suspect your dome light issue might be a door pin problem and the other lights out are probably bulbs as well. There is no light in the push draw, only a small bulb in the ash try which is connected to the dash lighting circuit.
Me thinks BCM isn't your issue......
Me thinks BCM isn't your issue......
12-09-2008, 03:08 PM
#5
Okay let me try to rephrase...
The bulbs in the license plate are literally BRAND new.
My door switch is fine as my door lights come on just fine when I open the door or go off when I close it.
My keyring light works if I ground the dome light (to the metal roof). If I don't ground, only the dome light works (and only in the ON position - furthest to the left if you're sitting in the back seat).
My ash tray (I called it the pushout drawer) bulb is fine. I checked it just now and it was on.
It's NOT a bulbs or fuse issue. I know enough to check those first.
The bulbs in the license plate are literally BRAND new.
My door switch is fine as my door lights come on just fine when I open the door or go off when I close it.
My keyring light works if I ground the dome light (to the metal roof). If I don't ground, only the dome light works (and only in the ON position - furthest to the left if you're sitting in the back seat).
My ash tray (I called it the pushout drawer) bulb is fine. I checked it just now and it was on.
It's NOT a bulbs or fuse issue. I know enough to check those first.
12-09-2008, 08:44 PM
#6
By the way have you looked into the FSM?
The ash tray illumination does not go through the BCM.
The license plate lights do not go through the BCM either.
I'm suspecting something else besides the BCM
The ash tray illumination does not go through the BCM.
The license plate lights do not go through the BCM either.
I'm suspecting something else besides the BCM
12-10-2008, 06:02 AM
#9
Member who somehow became The President of The SE-L Club
iTrader: (19)
Join Date: Jun 2001
Posts: 16,033
My door switch is fine as my door lights come on just fine when I open the door or go off when I close it.
My keyring light works if I ground the dome light (to the metal roof). If I don't ground, only the dome light works
My keyring light works if I ground the dome light (to the metal roof). If I don't ground, only the dome light works
My ash tray (I called it the pushout drawer) bulb is fine. I checked it just now and it was on.
It's NOT a bulbs or fuse issue. I know enough to check those first.
Don't waste your time looking at or changing the BCM, it's not causing your problems.
12-10-2008, 06:08 AM
#10
Does the key ring and Auto interior light go back off when you remove the ground? It should. If so this just proves the circuits are OK. It's either a bad BCM or The BCM is not getting the right input signals to cause it to behave correctly. This test just helps top narrow down the problem it is not meant to solve it.
I'll look some more when I have more time.
I'll look some more when I have more time.
Yes if the door lights turn on when you open the door the switch is fine.
For test purpose you need to get at the red with white strip wire and jump it to ground. Trust me on this. This wire is accessible at the interior lamp switch, key hole or the BCM. Just take a jumper wire and connect it to any good ground and connect the other end to a bare area on the red with white strip wire. The keyhole lamp and interior lamp should turn on when you do this. If they do light up the problem is because you are not getting the correct signal from the BCM. That MAY indicate a faulty BCM.
If the keyhole and interior lamp do not light up when you jump the red with white stripe wire to ground the BCM is probably OK and something in your wiring is causing a problem.
For test purpose you need to get at the red with white strip wire and jump it to ground. Trust me on this. This wire is accessible at the interior lamp switch, key hole or the BCM. Just take a jumper wire and connect it to any good ground and connect the other end to a bare area on the red with white strip wire. The keyhole lamp and interior lamp should turn on when you do this. If they do light up the problem is because you are not getting the correct signal from the BCM. That MAY indicate a faulty BCM.
If the keyhole and interior lamp do not light up when you jump the red with white stripe wire to ground the BCM is probably OK and something in your wiring is causing a problem.
I think it's the BCM. After reading those two quotes...are you still sure it's most likely not? I'm trying to sell this car and have some hits but would like to fix this tiny problem before I sell it.
12-10-2008, 09:41 AM
#13
I assume you're from NYCM but I don't recognize your screen name.
12-10-2008, 07:23 PM
#16
they arent the same. i tried replacing one in my old 96 with one i got off maxima joe. no dice, the plugs were different. best off is pulling yours out, checking the numbers on the unit and matching them up.
12-10-2008, 09:13 PM
#19
Ilya, I am very interested in your results. I said before I have the same issues, knowing if my BCM needs replacing would be great.
Side note: do your hazards flash when you lock the car like they should?
Side note: do your hazards flash when you lock the car like they should?
12-10-2008, 09:39 PM
#20
12-14-2008, 10:07 PM
#23
So only things that don't work are the key light ring and the dome light (if set to auto) which could definitely be a BCM issue.
Teaner, you still have the BCM? Is it 97-99 with keyless?
Teaner, you still have the BCM? Is it 97-99 with keyless?
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