i took a "voltmeter"...and measured the resistor!
one contact on a pin and the other on one of the lightcables of the headlight!when it beeps i knew what pin is full,dim or ground..so i checkt all 4 pins! the i knew what pin is fullight, dimlight and ground and put it together with the cables of the lights of my compact...
i hope you understand what i mean...my english is not perfect :D
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Mein Compact