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-   -   R50/53 Early R53 Clock Wiring (https://www.northamericanmotoring.com/forums/r50-r53-hatch-talk-2002-2006/264847-early-r53-clock-wiring.html)

exocet 02-01-2014 03:57 PM

Early R53 Clock Wiring
 
Can't seem to find an answer to this in Bentley or anywhere else...

Trying to determine which wire is which for the early R53 roof clock. I can guess, but I thought someone may know for sure...

Edit - wires are:

Red/Green = 12v
Grey/Red = DCU
Black/brown = gnd

mrbean 02-02-2014 06:30 AM

I don't have a wiring diagram but if I had to guess one would be 12V+, one would be ground and the third would be a signal from the instrument cluster to adjust the backlight brightness. With a multimeter, it should be easy to figure out which is which.

exocet 02-02-2014 06:35 AM


Originally Posted by mrbean (Post 3875301)
I don't have a wiring diagram but if I had to guess one would be 12V+, one would be ground and the third would be a signal from the instrument cluster to adjust the backlight brightness. With a multimeter, it should be easy to figure out which is which.

Thanks. No exposed wire there and can't get the multimeter into the connector. Brown is the gnd. I assume gn/rd is the 12v - bmw seem to associate gn with 12v sometimes...

mrbean 02-02-2014 06:46 AM

Un-bend a paper clip and stick it into the connector to take a reading.

exocet 02-02-2014 07:09 AM


Originally Posted by mrbean (Post 3875308)
Un-bend a paper clip and stick it into the connector to take a reading.

You are a smarter man than I :nod: Good call...

exocet 02-02-2014 12:07 PM

Updated the original post with the correct wire designations for those interested in future.


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