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Join Date: Sep 2004
Location: Camarillo, California
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Sunroof Wiring - 740i

'94 BMW 940I Sunroof. A few weeks ago the BMW "small town shop" replaced the front window. Since the replacement the sunroof panel will not operate.

From the electrical diagrams in the Bentley book there are two schematics showing the red & white power to the "switch" but I can't find anything that tells me about all the other wires that disappear in the roof and others coming out of the roof to the switch.

FEED WIRES – go somewhere to connect to switch and motor

Hot Red

Hot Red & Brown


Ground Brown

Ground Blue

WIRES IN THE SWITCH BOX TO OPEN AND CLOSE SUNROOF: (terminal/connection location unknown)

Yellow & Green

Yellow & White

Brown

Yellow & Grey

Grey & Black

Brown

WIRES CONNECTED TO MOTOR:

Insert near large gear drive wheel:

Brown & Yellow

Black & Yellow

Brown

Back of motor (these are larger wires)

Blue changing to Purple

Black & Red Changing to Blue



Where is the location of the connection blending the feed wires, switch wires and motor operating wires?

How do we get to the connection?

Is there a fuse somewhere other than #18 and #32?

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Matt
'76 Porsche 911 with '78 3.0 SC engine
'71 VW Bus
'14 VW Passat (toddler hauler & wife approved ride)
'03 Subaru Baja original yellow & silver
Old 07-09-2005, 12:54 PM
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Join Date: Dec 2002
Location: Poquson, VA
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Sunroof

I also show fuses 17 and 20 in front power distribution box.

Old 07-10-2005, 03:48 PM
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