VST Pump does not come on

[Hunter#1]

only thing attached to the coil cover,dual driver 04 and up HPDI, is the coils.
a quick test of the stop circuit? if its activated you get an alarm if you crank it.

pay carful attention to the wakey wakey signals the ECU gets to activate the various relays at key on power.
its all in the harness diagram and its actually fairly simple when you remember typically its the ECU con*****ed ground path that activates things.

Rod , is that fuel pump easily accessible behind that coil cover. If the coils are attached to the cover how do I remove the cover to get to the relay?

[rodbolt17]

unclip the 6 coil leads.
remove the 8 or so fateners,remove the cover.
the pump is in the VST tank.

[Hunter#1]

unclip the 6 coil leads.
remove the 8 or so fateners,remove the cover.
the pump is in the VST tank.

Thank you, Rod. Yes, I found the pump and have already replaced that. Was worried about ttaking this coil cover off, not so much now. Thanks again for the info. I wish my service manual gave detail like removing that coil cover so I don't have to ask dumb newbie questions.