Installation manual

18
PureFlow AirDog
AirDog
®
II Demand Flow 2001-2009 DuraMax Diesel
Section 6 Electrical Harness
Connecting the AirDog
®
II Relay Control
6-2. Remove the plastic housing (skirt) around the fuse box. On some models it may be
necessary to remove the fender/cowl brace to allow access to the fuse box.
6-3. After accessing the fuse panel, use a test light or voltmeter to find a fuse terminal that is
HOT only when the ignition is in the on position. Connect the ‘Red’ Relay Trigger wire
with the mini fuse tap to that terminal.
Relay
Trigger Lead
Connection
Figure 32 Figure 33
NOTE: The power supply leads can be connected to the battery or the
alternator.
Connecting the power supply leads to the alternator instead of the battery will
create a corrosion free connection.
Black (-) Red (+) Replace the Protective Cover
Figure 34 Figure 35
6-4A. Route the Red & Black power supply leads to the alternator.
Connect the Black (-) lead to the alternator Chassis Ground connection. Connect the
Red (+) lead to the alternator Hot Lead going to the battery.