Inspection of 4WD Control Module and Its Circuits: Notes
WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
4WD control module and its circuits can be checked at connector connected to 4WD control module by measuring voltage, pulse signal.
CAUTION:
If you connect a voltmeter or ohmmeter directly to the 4WD control module terminals by removing the control module connectors, you can damage the control module. Never connect a voltmeter or an ohmmeter directly to any terminal of the 4WD control module by disconnecting the control module connectors.