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Module with part number 0315457232. What is it?

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Old 07-14-2012, 08:23 PM
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2005 E55 AMG
Module with part number 0315457232. What is it?
My friends C55 had it in the trunk. It was installed but was not plugged in nor were there any plugs in the area to plug it in. What is this module for?\

Part number: 0315457232
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Old 07-15-2012, 12:03 AM
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2006 C55, 1995 C36
Originally Posted by GT-ER
My friends C55 had it in the trunk. It was installed but was not plugged in nor were there any plugs in the area to plug it in. What is this module for?\

Part number: 0315457232
Looks like it's a trailer coupling control unit.
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Old 07-15-2012, 12:19 AM
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Originally Posted by dre5373
Looks like it's a trailer coupling control unit.
What the hell? LOL... I didn't even know such a thing existed for this vehicle. Anywhere I can find more info on it?
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Old 07-15-2012, 02:54 AM
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2002 W203 C32 AMG / 1997 Toyota Corolla AE110
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Old 07-15-2012, 03:11 AM
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2006 C55, 1995 C36
AllData gives little to no info, other than listing it with a # of N28/1. Apparently this is a transformer for trailer lighting, and Hella makes a replacement unit http://www.hgvdirect.co.uk/catalog/h...-p-500985.html

Although it seems odd that it is listed as a 24V to 12V item...
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Old 07-15-2012, 09:26 AM
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So weird they would just install a $200 module and not even use it. It's wasted money.
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