H&S MINI MAX Installation & Operation Manual - Section 3:

12         Mini Maxx Installation Manual   •   www.hsperformance.com

secTion 3: 

insTalling THe PoWer Wire (*oPTional)

*The OBD II port provides constant 12V+ power, so your Mini Maxx can power off of the OBD II port alone. 

But in this situation the Mini Maxx will not turn on and off with the ignition. There is a switch on the OBD II 

adapter plug in order to turn the Mini Maxx on and off.

In this section you will run the Power Wire coming from the Mini Maxx Cradle to the vehicle fuse box and 

connect it to the fuse locations specified below. The fuse location for the Power Wire is different on each 

vehicle application.

connecTing THe PoWer Wire: 

1. Route wire to location shown in pictures found in the

 vehicle specific sections starting on page 27

2. Remove the fuse, indicated in the pictures, and insert the fuse jack. Make sure that the fuse jack is placed 

on the dead side of the fuse to ensure that the Mini Maxx is protected by the fuse. Use a volt meter to verify 

the dead side of the fuse. With the fuse pulled and the truck powered on but not started, the volt meter 

should read 0 volts on the fuse jack to ground. Problems that can occur if the incorrect fuse is used for 

this connection: the power may stay on continuously even with the key off; or, the Mini Maxx can receive 

power at the incorrect time of the power-on/starting cycle of the vehicle.

3. Run the power wire through the fire wall before preparing the Power Wire. Prepare the Power Wire by 

stripping the end of the wire about ¼”. Connect the blue 90° connector to the end of the Power Wire using 

crimping pliers. 

4. Connect the Power Wire to the fuse jack, place the fuse back into the slot, and close the fuse box.