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Courtesy Lights flash while driving - 1996

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Old Oct 28, 2007 | 12:23 AM
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Default Courtesy Lights flash while driving - 1996

1996 C4 Coupe:
Hello all - My pesky courtesy (interior) lights flash on and off at random, usually when I hit a bump, or traverse an uneven road. Although, yesterday while sitting at a stoplight (on a flat, level street), they flickered wildly. I can hear the relay under the dash (I think) "clicking" while the lights flash. My alarm has gone off several times due to this, and my battery has also died twice (I assume from the courtesy lights being on). Temporary solution: I've pulled the PKE & Courtesy fuses until I can find a real fix.

OK - I know it's probably a door/hatch microswitch, but how can I be sure, and how can I isolate the correct switch if this is the case? And, are these switches hard to replace? Or is this something for the dealer to handle?

Also, has anyone used one of those gizmos that keeps your rear hatch open (approx. 3 in.) while driving to allow air to flow through the cab? If so, have you noticed any issues with these things?

Thanks in advance - John (save the wave)
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Old Oct 28, 2007 | 12:29 AM
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Originally Posted by jsjodin
1996 C4 Coupe:
Hello all - My pesky courtesy (interior) lights flash on and off at random, usually when I hit a bump, or traverse an uneven road. Although, yesterday while sitting at a stoplight (on a flat, level street), they flickered wildly. I can hear the relay under the dash (I think) "clicking" while the lights flash. My alarm has gone off several times due to this, and my battery has also died twice (I assume from the courtesy lights being on). Temporary solution: I've pulled the PKE & Courtesy fuses until I can find a real fix.

OK - I know it's probably a door/hatch microswitch, but how can I be sure, and how can I isolate the correct switch if this is the case? And, are these switches hard to replace? Or is this something for the dealer to handle?

Also, has anyone used one of those gizmos that keeps your rear hatch open (approx. 3 in.) while driving to allow air to flow through the cab? If so, have you noticed any issues with these things?

Thanks in advance - John (save the wave)
Its definitely that little switch, and more than likely the driver side, as it gets used more often. You could put a dime or something in between the door and the switch,so when you shut it, it makes the switch tighter.
Takes 2 minutes to change. Unscrew it, use needle nose pliers to hold the plug, change switch, screw back in, VOILA! DOne.
Yes, I also have one of the heavy duty versions of the hatch extender. Works fine long time.
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Old Oct 28, 2007 | 12:32 AM
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I had a similar situation. It was my door switch. To be sure that it is you can pull out the stop a little and then close your door. This is a temporary fix. I remember replacing my friend's switch it was easy. I pulled the door panel to take care of some other work and did the switch at the same time.
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Old Oct 28, 2007 | 12:32 AM
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Thanks - I was woried that the hatch extender attachment damaged the hatch switch.

I'll try the dime test and go from there
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