The airdog, Is equipped with a relay controlled wiring harness, Pureflow airdog airdog – PureFlow AirDog FP-150 - Dodge Cummins 1989-1993 User Manual
Page 18: Wiring diagram (in red), Figure 49, Figure 50, Securing the relay and fuse holder to the vehicle, Figure 51 figure 52

18
PureFlow AirDog
AirDog
®
FP-100 & FP-150 Dodge Cummins 1989 - 1993
Section 6 Electrical Harness
The AirDog
®
is equipped with a relay controlled wiring harness.
WIRING DIAGRAM (In Red)
Figure 49
The AirDog
®
is activated through a relay controlled wiring harness connecting directly to the
fuse panel.
AirDog® Pump Motor Lead
Pressure Sensor/Switch Lead
Indicator Light Lead
Battery Positive Lead
Battery Negative Lead
Mini Fuse Tap Relay Lead
Figure 50
CAUTION: If the OPTIONAL Low Pressure Indicator Light is not used, be sure to insulate
the two (2) #10 Indicator Light connectors to prevent accidental contact.
Securing the Relay and Fuse Holder to the Vehicle
6-1.
Secure the relay and fuse holder to the vehicle.
Figure 51
Figure 52