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#1
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I hv problem with the front interior lamp.
It works only with door open. I need to know: 1) There are 4 wires connected to this lamp socket. Where are these pins(TK, 30, 31, 30) connected to ? I know pin30 is connected to the +12V and not sure the others. 2) Does this light goes off with graduately dim then off completely or goes off after certain delay time ~6 second after the door close ? Thank you. |
#2
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An interior lamp with only 4 wires is one of the older types.
These lights do not dim gradually before they are turned off completely but will shut off at once after a certain delay. The pins mentioned must be TK, 30, 31 & 15 (instead of the second mentioned 30). TK stands for "türkontakt" which is German for doorcontact; this is the cable which is connected to ground when the door is opened. 30 is connected to permanent 12V 31 is connected to ground directly 15 is connected to +12V after the ignition key is turned into position 1 or 2. Switches of these light units tend to break down occasionally and some of the electrical contents in these lights (resistance diodes)burned out to often (at least in the units used in the Netherlands with the flashing seat-belt insertion). greetingz & good luck
__________________
1990 300SL-24 1993 C250D with a minor 600+k kilometer www.MBenzNL.com(the Netherlands) |
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