{"id":57069,"date":"2019-06-25T07:02:44","date_gmt":"2019-06-25T12:02:44","guid":{"rendered":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/?p=57069"},"modified":"2019-06-25T07:02:46","modified_gmt":"2019-06-25T12:02:46","slug":"p023f-fuel-pump-secondary-circuit-2016-gmc-sierra-sle-z71","status":"publish","type":"post","link":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2019\/06\/p023f-fuel-pump-secondary-circuit-2016-gmc-sierra-sle-z71","title":{"rendered":"P023F Fuel Pump Secondary Circuit  2016 GMC Sierra SLE z71"},"content":{"rendered":"<p>pulled the codes po23f fuel relay<br \/>\ncant find the relay<\/p>\n<hr \/>\n<hr \/>\n<h3>P023F &#8211; Fuel Pump Secondary Circuit Open<\/h3>\n<h5>Code P023F possible causes:<\/h5>\n<div class=\"container\">\n<div class=\"main\">\n<ul>\n<li>Bad fuel pump relay<\/li>\n<li>Short to voltage on FP voltage supply circuit or feedback circuit<\/li>\n<li>Short to ground on PCM<\/li>\n<li>FP relay control circuit PCM<\/li>\n<li>FP relay control driver shorted to ground internally<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p>There are several fuel pump fuses and relays located in the underhood fuse block.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-57123\" src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/06\/2016-gmc-1500-fuse-block.jpg\" alt=\"2016-gmc-1500-fuse-block-diagram\" width=\"414\" height=\"599\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/06\/2016-gmc-1500-fuse-block.jpg 414w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/06\/2016-gmc-1500-fuse-block-207x300.jpg 207w\" sizes=\"(max-width: 414px) 100vw, 414px\" \/><\/p>\n<ul>\n<li>18 &#8211; Fuel Pump Relay (20A) &#8211; Fuse(2 pin micro fuse)<\/li>\n<li>41 &#8211; Fuel Pump Relay &#8211; Secondary (20A) &#8211; Fuse(2 pin micro fuse)<\/li>\n<li>59 &#8211; Fuel Pump Relay &#8211; Primary(Micro Relay)<\/li>\n<li>66 &#8211; Fuel Pump Relay &#8211; Secondary(Micro Relay)<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>pulled the codes po23f fuel relay cant find the relay P023F &#8211; Fuel Pump Secondary Circuit Open Code P023F possible causes: Bad fuel pump relay Short to voltage on FP voltage supply circuit or feedback circuit Short to ground on PCM FP relay control circuit PCM FP relay control driver shorted to ground internally There&hellip;&nbsp;<a href=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2019\/06\/p023f-fuel-pump-secondary-circuit-2016-gmc-sierra-sle-z71\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">P023F Fuel Pump Secondary Circuit  2016 GMC Sierra SLE z71<\/span><\/a><\/p>\n","protected":false},"author":15231,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1,22],"tags":[23056,9568,23057,512],"class_list":["post-57069","post","type-post","status-publish","format-standard","hentry","category-auto-repair-questions","category-gmc","tag-code-p023f","tag-fuel-pump-relay","tag-p023f-fuel-pump-secondary-circuit-open","tag-sierra"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>P023F Fuel Pump Secondary Circuit 2016 GMC Sierra 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