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Old 09-09-2006, 12:16 AM   #1
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Default Strange problem with interior lights

Well i thought i would trow this one out there recentently as of a about a 4-5 days a go my interior lights(door,floor,and overhead) in my 1998 sse would not shut off when in drive like i belive the should i am almost positive it is gonna be some thing with my ground or maybe even a fuse but if any of you think you may know what the deal is let me know it is really pissing me off thank you again
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Old 09-09-2006, 12:22 AM   #2
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Since you have a 96-99 model, try rotating the headlight **** (I think it'* counterclockwise) to be sure that it'* not clicked all the way to the side. That **** will control the intensity of your dash lights during night time driving and when you go all the way to the side the interior lights come on too...just a thought. Hopefully it'* that easy.
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Old 09-09-2006, 12:26 AM   #3
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nope tryed that already i know that isnot the prob. but thank any way
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Old 09-09-2006, 12:39 AM   #4
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has the car ever been wet on the inside...if so it could be your ground busses that are corroded....

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here is a pic to show you there relative location and what they look like
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Old 09-09-2006, 12:55 AM   #5
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so is it reasonably easy to fix that situation if that is the problem ?
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Old 09-09-2006, 09:30 AM   #6
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Maybe the BCM is not getting the "all doors shut" input, or "key in ignition" input. There are a few controlling factors that could be a problem in addition to what has been posted already.
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Old 09-10-2006, 09:51 PM   #7
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well ican tell you that some time my dorrs will automaticly lock/unlock does that give you guys any more help?
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Old 09-11-2006, 06:35 AM   #8
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Quote:
Originally Posted by CjCC
well ican tell you that some time my dorrs will automaticly lock/unlock does that give you guys any more help?
When you say automaticly, is that with you shifting the transmission out of or into park?
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Old 09-11-2006, 08:33 AM   #9
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I would double check the grounds 1993 pointed out. Although they typically wouldn't cause an issue like you mention.

The MALL/BCM module that MarkWB mentions is a possibiliy. There is a testing procedure you can go through to test it. It'* in the FSM, however mine are at home at the moment.
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Old 09-11-2006, 01:00 PM   #10
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EchoSSEi sent me this when I had issues with my lights, locks and chime:
It'* the Body Control Module diagnosis procedure - at least for a '97

Problem:
Power door locks, interior lamps, and “Key-In-Ignition” and/or “Fasten Seat Belt” chime do not function

Component Diagnosis: Body Control Module (MALL)

First Steps:
1. Check door lock fuse (Fuse 1 - 20 amp) and chime fuse (Fuse 1D – 15 amp)
2. Check Courtesy Lamp/Power Mirror fuse (Fuse 6A – 15 amp)
3. Check for poor terminal contact at MALL and wiring harness connectors
4. Check for broken or partially broken wires.

Second Step: Perform the “MALL Module Internal Diagnostic Procedure

The MALL module stores “history” codes if an electrical short occurs in the system during vehicle operation. The codes are “communicated audibly (a bong sound) by accessing the MALL module diagnostic mode. After providing any codes, the MALL module enters a functional test mode (called Input/Output or “I/O”) to assist in verifying that the inputs to the MALL are functioning properly.

1. To enter MALL module diagnostic mode:
a. Turn ignition switch to “ON”
b. Press AND hold the power door unlock switch while at the same time…
c. Cycling the headlamp switch six times, on and off, within 20 seconds of pressing and holding the power door unlock switch
d. Release power door unlock switch

Note: (To “Exit” the MALL module diagnostic mode, turn the ignition switch to “OFF”.)

The MALL will provide a number of audible “bong” sounds (and flash the “Fasten Seat Belt” indicator light with each bong) to identify the stored history codes for any malfunctions (short circuits) as follows:

# of “bongs” Circuit Short Condition
One Fasten Seat Belt Circuit
Two Battery Protection Circuit
Three Courtesy Lamps Circuit

The MALL module will cycle through the stored history code(*) three times pausing for two seconds between each of the three cycles.

If no codes exist the MALL immediately enters the I/O mode.

2. I/O Mode:

In the I/O mode, input from components in the system are “tested” by activating/deactivating each components input device and providing either one “bong”or NO, bongs (along with flashing the “Fasten Seat Belt” indicator light) to indicate whether a “short” is detected in the circuit as follows:

Component - Test
Auxiliary Chime - Apply Parking Brake/Release, then Repeat
Interior Lamps - Turn on interior lamp switches, then turn off, then Repeat
Dome Lamp - Turn on dome lamps, then turn off, then Repeat
Door Latch Switches - LH and RH Door latch switches (not too sure on this one)
Power Door Locks - Lock then Unlock, Repeat
Battery Protection - Turn on interior lamp switch, then turn off, then Repeat
“Lamps On” Chime - Turn on headlight switch, then turn off, then Repeat
Fasten Seat Belts Chime and Indicator Light - Latch, then unlatch driver’* Seatbelt, then repeat.
Turn Signal On Reminder Chime - Activate turn signal, then turn off, then Repeat
Trunk Lid Ajar Light - Activate/deactivate trunk lid latch switch, then repeat.

If you get a “bong” when testing a component, then the component is functioning properly.

If these components check out OK, then the MALL module itself needs to be tested for a short or the module needs to be replaced.
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