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Message: <blockquote data-quote="weendoggy" data-source="post: 1535754" data-attributes="member: 23340"><p>CCRM supplies power to the pump driver module via the inertia switch and then activates the pump via the PCM. As ttocs said, if you want to check the pump solo, connect a known full time 12v ignition power to 86, ground 85 to activate and 12v battery power to 30 and pump to 87. I like to use standardized relay wiring, although 86/85 could be reversed as well as 30/87. Just remember what you do.  <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>