How best to fix this? ... my engine bay "Fuel Priming" fuse plug (#17 ...10a) has no power. What is the quickest way to identify the problem and fix it? ... I have replaced the Fuel Filter Head Assemply with a new one in January 2019, and I have an In-Tank Fuel Pump (Carter) that I stalled 2 years ago.

I just tried to fix it by replacing the Fuel Pump Relay in the engine bay fuse box.

Is the reason it has no power in the "Fuel Priming" #17 fuse something connected to the fuel head assemply or something else?

Any suggestions about the source?

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2005 Jeep Liberty CRD Limited: GDE Eco Tune, Weeks Kit 1&2, Provent 200, P3 E-Brake Controller, Custom Rock Rails, Suspension & Arms (OME, ARB, Raybestos, Bilsteins, etc.), 11-Bladed Fan, HD-Fan-Clutch, HDS M-001 Thermo, Fan-shroud-mod, Sasquatch Turbo, Tires: BFG AT TA KO2 LT245/70R16 - load D, Carter In-Tank Lift Pump.

Download the 2005 Jeep KJ Service Manual here...Section 8W has the wiring diagrams.
The Component Index tells you where to find Fuse #17 in the diagrams.

Then trace back from the fuse to see where the +12 volts has gone missing.

Jeep KJ Service Manuals:

http://www.colorado4wheel.com/manuals/Jeep/KJ/

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2002 Export CRD