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Old 12-11-2010, 06:04 PM
punkieys17 punkieys17 is offline
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Join Date: Jun 2008
Posts: 1
OBD2 not communicating

On a 2003 W203 C200 Kompressor the check engine light came on.

I connnected an IBM T30 with Xentry and tried to use a Memoscan multiplexer (bought used) but I could not get it to communicate.

The multiplexer kight up both lights - but neither flashed - which i understand inidcates data.

The Xentry started and began opening the communication layer but failed when it could not find the connection - it said it could not find 12v on circuits 30 or 31??

I guessed this may be a fuse problem but the only fuse referenced also services the dipped headlights - which works.

So 2 questions,

1) are there any other fuses I need to check
2) is there any other port (dedicated to the engine?)

Any help greatly appreciated

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