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Old 08-31-2004, 11:17 PM
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Join Date: Apr 1999
Posts: 2,638
W124 (1993 500E) bulb-out module

Can the exterior lamp-monitor module (N7), aka "bulb-out" module, cause
NO power to an individual tail-lamp on a W124 1993 500E ?

My right-rear tail-light shows no voltage on my FLUKE DVOM. I've
switched out bulbs and they both test fine, and all other
tail-lights/running lights also work. I cleaned all connections with a
SCOTCH-BRITE pad and then with some DeOxIt.

The schematic shows it going to pin#10 of N7, but from there it is a
BLACK HOLE (no schematic for N7 that I can find).

TIA,
:-) neil
1988 E36T AMG
1993 500E

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Old 09-01-2004, 09:01 PM
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Join Date: Mar 2001
Location: Evansville WI
Posts: 9,616
Yes, the lamp control module is ultimately responsible for providing power to all monitored bulbs. I had a 124 once that had ONE inop license plate light, found out each one is supplied power individually by N7. Used a scotch-lok inside the fusebox to jumper the 1 circuit to power up both bulbs. Owner happy.

Gilly

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