{"id":57732,"date":"2019-08-27T08:47:24","date_gmt":"2019-08-27T15:47:24","guid":{"rendered":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/?p=57732"},"modified":"2019-08-27T08:47:27","modified_gmt":"2019-08-27T15:47:27","slug":"blower-fan-stays-on-2011-jeep-wrangler-3-8-liter-v6","status":"publish","type":"post","link":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2019\/08\/blower-fan-stays-on-2011-jeep-wrangler-3-8-liter-v6","title":{"rendered":"Blower fan stays on 2011 Jeep Wrangler 3.8 liter v6"},"content":{"rendered":"<p><img decoding=\"async\" class=\"alignnone size-full wp-image-57764\" src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/08\/2011-jeep-wrangler.jpg\" alt=\"2011-jeep-wrangler\" width=\"600\" height=\"318\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/08\/2011-jeep-wrangler.jpg 600w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/08\/2011-jeep-wrangler-300x159.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>When I lower my blower fan switch to off position it stays on low speed. I have a continuous knob not one with set speeds. Do I need to change the resistor or change the whole ac\/heat control unit with the 3 knobs?<\/p>\n<hr \/>\n<p><script async=\"\" src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script> <ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-5950293074584657\" data-ad-slot=\"3814845838\"><\/ins> <script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<hr \/>\n<p>Lets take a look at the <a href=\"https:\/\/www.freeautomechanic.com\/wiringdiagrams.html\">wiring diagram<\/a> of the blower motor circuit.<\/p>\n<h4>Blower motor wiring diagram 2011 Jeep Wrangler<\/h4>\n<p><img decoding=\"async\" class=\"alignnone size-large wp-image-57762\" src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/08\/2011-jeep-wrangler-blower-motor-1024x839.png\" alt=\"2011-jeep-wrangler-blower-motor\" width=\"695\" height=\"569\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/08\/2011-jeep-wrangler-blower-motor-1024x839.png 1024w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/08\/2011-jeep-wrangler-blower-motor-300x246.png 300w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/08\/2011-jeep-wrangler-blower-motor-768x630.png 768w\" sizes=\"(max-width: 695px) 100vw, 695px\" \/><\/p>\n<p>After looking at the diagram it would appear this vehicle uses a Power Module instead of a blower motor resistor. But this would be my first guess at to what needs to be replaced.<\/p>\n<h4>Manual or Automatic Climate Control?<\/h4>\n<p>Yes, both the Manual and Automatic temperature control heating-A\/C systems use a power module to control the the blower motor speed. The power module uses a Pulse Width Modulated input from the A\/C-heater control and a feedback signal from the blower motor to regulate the blower motor ground path. On both systems, the blower motor receives battery current through the Totally Integrated Power Module whenever the ignition switch is in the RUN position, and the blower motor control is in any position except OFF.<\/p>\n<p>The blower motor can be accessed from underneath the instrument panel and is diagnosed using a <a href=\"https:\/\/www.freeautomechanic.com\/scantools.html\">Scan Tool<\/a>.<\/p>\n<h5>How the Blower Motor Control Works<\/h5>\n<div class=\"lyte-wrapper fourthree\" style=\"width:420px;max-width:100%;margin:5px;\"><div class=\"lyMe hidef\" id=\"WYL_6YiCjnjLKH8\"><div id=\"lyte_6YiCjnjLKH8\" data-src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/plugins\/wp-youtube-lyte\/lyteCache.php?origThumbUrl=%2F%2Fi.ytimg.com%2Fvi%2F6YiCjnjLKH8%2Fhqdefault.jpg\" class=\"pL\"><div class=\"tC\"><div class=\"tT\"><\/div><\/div><div class=\"play\"><\/div><div class=\"ctrl\"><div class=\"Lctrl\"><\/div><div class=\"Rctrl\"><\/div><\/div><\/div><noscript><a href=\"https:\/\/youtu.be\/6YiCjnjLKH8\" rel=\"nofollow\"><img decoding=\"async\" src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/plugins\/wp-youtube-lyte\/lyteCache.php?origThumbUrl=https%3A%2F%2Fi.ytimg.com%2Fvi%2F6YiCjnjLKH8%2F0.jpg\" alt=\"YouTube video thumbnail\" width=\"420\" height=\"295\" \/><br \/>Watch this video on YouTube<\/a><\/noscript><\/div><\/div><div class=\"lL\" style=\"max-width:100%;width:420px;margin:5px;\"><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When I lower my blower fan switch to off position it stays on low speed. I have a continuous knob not one with set speeds. Do I need to change the resistor or change the whole ac\/heat control unit with the 3 knobs? Lets take a look at the wiring diagram of the blower motor&hellip;&nbsp;<a href=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2019\/08\/blower-fan-stays-on-2011-jeep-wrangler-3-8-liter-v6\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Blower fan stays on 2011 Jeep Wrangler 3.8 liter v6<\/span><\/a><\/p>\n","protected":false},"author":15350,"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":[1,34],"tags":[23402,10529,9316],"class_list":["post-57732","post","type-post","status-publish","format-standard","hentry","category-auto-repair-questions","category-jeep","tag-blower-motor-module","tag-blower-motor-resistor","tag-wrangler"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Blower fan stays on 2011 Jeep Wrangler 3.8 liter v6 - FreeAutoMechanic Advice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2019\/08\/blower-fan-stays-on-2011-jeep-wrangler-3-8-liter-v6\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Blower fan stays on 2011 Jeep Wrangler 3.8 liter v6\" \/>\n<meta property=\"og:description\" content=\"When I lower my blower fan switch to off position it stays on low speed. I have a continuous knob not one with set speeds. Do I need to change the resistor or change the whole ac\/heat control unit with the 3 knobs? 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I have a continuous knob not one with set speeds. Do I need to change the resistor or change the whole ac\/heat control unit with the 3 knobs? Lets take a look at the wiring diagram of the blower motor&hellip;&nbsp;Read More &raquo;Blower fan stays on 2011 Jeep Wrangler 3.8 liter v6","og_url":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2019\/08\/blower-fan-stays-on-2011-jeep-wrangler-3-8-liter-v6","og_site_name":"FreeAutoMechanic Advice","article_publisher":"https:\/\/www.facebook.com\/freeautomechanic","article_published_time":"2019-08-27T15:47:24+00:00","article_modified_time":"2019-08-27T15:47:27+00:00","og_image":[{"url":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/08\/2011-jeep-wrangler.jpg","type":"","width":"","height":""}],"author":"joe","twitter_card":"summary_large_image","twitter_misc":{"Written by":"joe","Est. reading time":"1 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