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What does this do ?

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Old 04-24-2013, 10:40 PM
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Tom in Austin
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Default What does this do ?

Something that was attached to the side of my glovebox, called a "lamp failure control relay" ?

Part 92864160310, with an orange VDO label ...
Old 04-24-2013, 10:45 PM
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MainePorsche
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The lamp controller for warning when bulb(s) are out - sidemarkers, taillights, front signal lights, brake lights (including 3rd).

Add:
Tom it should say Lampenkontrollgerӓt - Lamp Controller.

Last edited by MainePorsche; 04-24-2013 at 11:14 PM.
Old 04-24-2013, 10:45 PM
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James Bailey
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Tells you when the lights do not work....
Old 04-25-2013, 04:24 PM
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Tom in Austin
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OK, I get it, sends a signal to digital display to spell out something like "Tail Lights Out" ... haven't seen one of those messages in a long time, but makes sense that some little doo-dad would be needed to figure it out and tell the cluster ...
Old 04-25-2013, 05:12 PM
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docmirror
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When enabled, this circuit randomly give a false positive signal of a failure, or a true negative signal of a failure anywhere in the 3,548 bulbs, lamps, indicators, dials, *****, switches, and rheostats.

When you hear the radio switch from cool jazz to 'pop goes the weasel' you know it's coming.
Old 04-25-2013, 05:23 PM
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MainePorsche
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If you change any of the sidemarkers, tail lights, brake lights, front signal lights over to LED from incandescent, the Lamp Controller will register this as a fault. It senses the voltage difference between a pair when a bulb is out. With the low energy requirement of the LED's, it will read falsely. Borland has an excellent write up to address this.



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