C. Connect the WH-1002 wire harness branch coming from the relay to the factory power source re-
moved in the Step 1b.
B. Disconnect power source to the factory lift pump.
D. Secure Relay in an upright position, as shown, to prevent moisture from entering. Di-electric grease
may be applied to prevent corrosion. Examples of locations to secure relay:
A. Using ring terminals, attach red wire of the WH-1002 to the positive
battery terminal. Attach green wire to a clean ground, preferably the
negative battery terminal. Secure fuse block in a location protected from
outside elements. The use of corrosion preventative spray is recom-
mended.
E. Route the WH-1002 wire harness along the frame rail to the mounting location of the FASS fuel
pump.
Step 1: Install Electrical Harness
The installation of the electrical harness is done first, allowing power to be applied to the pump for
lubrication purposes later in the installation.
2003-2004
1998.5-2002
Before starting installation please review contents page to insure all necessary parts are included. Please
call Diesel Performance Products for any missing or incorrect items. 636-433-5410
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