You find 12V on Pin 1 but nothing on Pin 2. The schema electrique leads you to the GM-III (under the glovebox). On the GM’s X253 connector, Pin 16 is the output to the sunroof relay. No output = Replace GM-III or reprogram it with NCS Expert.
: Standard harnesses are color-coded, but late-model E39s with navigation use different connectors. Best Resources for Schematics to install it I need a schematic schema electrique bmw e39 top
. This "intelligent" motor communicates with the vehicle's body electronics to manage sliding, tilting, and anti-trap safety functions. Bimmerforums.com Core Electrical Components You find 12V on Pin 1 but nothing on Pin 2
for a particular module, such as the DME or the Light Control Module (LCM)? Wiring BMW E39 96 - 03 | PDF - Scribd No output = Replace GM-III or reprogram it with NCS Expert
: If the "one-touch" feature fails, you can often reset the module by holding the roof switch in the "tilt" position for 15–30 seconds until the mechanism cycles completely.