Bosch Example 3: Triggering the relay with a negative or positive signal.

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Negative switched signal
Pin 30: Wire this directly to the positive power source.
Pin 85: Wire this pin directly to the positive power source.
Pin 86: Wire this pin directly to the ground switched on/off signal.
Pin 87: This pin will be connected to your new device. This device will power on when the relay gets the signal via pin 86.


Positive switched signal (alternate diagram)
Pin 30: Wire this directly to the positive power source.
Pin 85: Wire this pin directly to the positive switched on/off signal.
Pin 86: Wire this pin directly to ground.
Pin 87: This pin will be connected to your new device. This device will power on when the relay gets the signal via pin 85.