FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Service Hints

M3 MOON ROOF CONTROL ECU
1-GROUND: Always approx. 12 Volts
5-GROUND: Always approx. 12 Volts
8-GROUND: Approx. 12 Volts with the ignition SW at ON position
7-GROUND: Always continuity

M4 MOON ROOF CONTROL SW
8-4: Closed with the moon roof control SW at SLIDE OPEN or TILT DOWN position
6-4: Closed with the moon roof control SW at SLIDE CLOSE or TILT UP position
4-GROUND: Always continuity