{"id":16071,"date":"2021-08-06T02:29:00","date_gmt":"2021-08-06T09:29:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=16071"},"modified":"2024-05-29T01:18:15","modified_gmt":"2024-05-29T08:18:15","slug":"p0650-code-malfunction-indicator-light-mil-control-circuit","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0650-code-malfunction-indicator-light-mil-control-circuit\/","title":{"rendered":"P0650 Code: Malfunction Indicator Light (MIL) Control Circuit"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_c2a97e-c0 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_c2a97e-c0 > .kt-inside-inner-col,.kadence-column_c2a97e-c0 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_c2a97e-c0 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_c2a97e-c0 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_c2a97e-c0 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_c2a97e-c0 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_c2a97e-c0{position:relative;}@media all and (max-width: 1024px){.kadence-column_c2a97e-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_c2a97e-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_c2a97e-c0 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-36615f  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-406d61\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_0bfa2b-c7, .wp-block-kadence-advancedheading.kt-adv-heading_0bfa2b-c7[data-kb-block=\"kb-adv-heading_0bfa2b-c7\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_0bfa2b-c7 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_0bfa2b-c7[data-kb-block=\"kb-adv-heading_0bfa2b-c7\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading_0bfa2b-c7 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_0bfa2b-c7[data-kb-block=\"kb-adv-heading_0bfa2b-c7\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_0bfa2b-c7 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_0bfa2b-c7\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>P0650 stands for &ldquo;Malfunction Indicator Light (MIL) Control Circuit,&rdquo; which points to an issue with your vehicle&rsquo;s MIL.<\/li><li>Common issues that could trigger the code include burnt-out MIL bulbs, circuit problems, a malfunctioning PCM, or a failing instrument cluster.<\/li><li>Common symptoms of P0650 include the MIL not activating when it should, or if the MIL is on all the time.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The Malfunction Indicator Light (the words &ldquo;Check Engine,&rdquo; &ldquo;Service Engine Soon&rdquo; or the ISO symbol for the Malfunction Indicator (see image below) is an output to the instrument cluster from the ECM\/PCM. Like all the other outputs, the computer sets a DTC when this output is malfunctioning. But for obvious reasons, you may not know the MIL isn&rsquo;t functioning unless your vehicle develops some other concern that causes you to retrieve the DTCs with a scan tool.<\/p>\n\n\n\n<p><em><strong>NOTE:<\/strong> The MIL is typically related to Emissions Systems issues rather than low coolant or oil issues, so understanding what the light means is important.<\/em><\/p>\n\n\n\n<p>The P0650 code is one of the trouble codes related to an issue with the <a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"check engine light\">check engine light<\/a> or its circuit.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/08\/illuminated-check-engine-light-1024x722.jpg\" alt=\"illuminated check engine light\" class=\"wp-image-42693\" width=\"1024\" height=\"722\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/08\/illuminated-check-engine-light-1024x722.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/08\/illuminated-check-engine-light-300x211.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/08\/illuminated-check-engine-light-768x541.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/08\/illuminated-check-engine-light-150x106.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/08\/illuminated-check-engine-light.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The Malfunction Indicator Light is also known as &ldquo;Check Engine&rdquo; light, or &ldquo;Service Engine Soon&rdquo; light.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0650 Code Mean? <\/h2>\n\n\n\n<p>To put it simply, code P0650 means that your MIL is not working as it should.<\/p>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/p0345-code-camshaft-position-sensor-a-circuit-bank-2\/\" target=\"_self\" rel=\"dofollow\" class=\"u2a7a620f8eb28917c8ef902584d75bed\"><style> .u2a7a620f8eb28917c8ef902584d75bed { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .u2a7a620f8eb28917c8ef902584d75bed:active, .u2a7a620f8eb28917c8ef902584d75bed:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .u2a7a620f8eb28917c8ef902584d75bed { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .u2a7a620f8eb28917c8ef902584d75bed .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .u2a7a620f8eb28917c8ef902584d75bed .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .u2a7a620f8eb28917c8ef902584d75bed:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">P0345 Code: Camshaft Position Sensor &ldquo;A&rdquo; Circuit (Bank 2)<\/span><\/div><\/a><\/div><\/div>\n\n\n\n<p>Typically, the MIL receives power from a fuse that also feeds the other indicator lights, and a ground from the ECM\/PCM illuminates the light. When the light isn&rsquo;t illuminated, the 12 volts feeding the B+ side of the lamp will pass all the way through the lamp filament to the ECM\/PCM, and the computer&rsquo;s algorithm is designed to watch this voltage.<\/p>\n\n\n\n<p>Okay, so, the ECM\/PCM knows when it has illuminated the MIL by grounding this circuit, so it also knows when it should and shouldn&rsquo;t see that 12 volts.<em> If the light isn&rsquo;t commanded on but the ECM\/PCM doesn&rsquo;t see the 12 volts, the algorithm is written to store this DTC<\/em>.<\/p>\n\n\n\n<p>Diagnostic trouble code (DTC) P0650 stands for &ldquo;Malfunction Indicator Light (MIL) Control Circuit.&rdquo; It means that the ECM\/PCM has detected a problem with that circuit. If the circuit is shorted to ground or chewed in two by a critter, the ECM\/PCM won&rsquo;t see the expected 12 volts when it hasn&rsquo;t supplied the ground and the computer will set the P0650.<\/p>\n\n\n<style>.kadence-column_69b2b8-cd > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_69b2b8-cd > .kt-inside-inner-col,.kadence-column_69b2b8-cd > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_69b2b8-cd > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_69b2b8-cd > .kt-inside-inner-col{flex-direction:column;}.kadence-column_69b2b8-cd > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_69b2b8-cd > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_69b2b8-cd{position:relative;}@media all and (max-width: 1024px){.kadence-column_69b2b8-cd > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_69b2b8-cd > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_69b2b8-cd kb-section-dir-vertical kb-section-sm-dir-vertical pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>#kt-layout-id_2ae6df-e5 > .kt-row-column-wrap{align-content:start;}:where(#kt-layout-id_2ae6df-e5 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}#kt-layout-id_2ae6df-e5 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:var( --global-kb-row-default-top, 25px );padding-bottom:var( --global-kb-row-default-bottom, 25px );padding-top:20px;padding-bottom:20px;padding-left:16px;padding-right:32px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}#kt-layout-id_2ae6df-e5 > .kt-row-layout-overlay{opacity:0.00;}#kt-layout-id_2ae6df-e5 .kt-row-layout-bottom-sep{height:100px;}#kt-layout-id_2ae6df-e5 .kt-row-layout-bottom-sep svg{width:100%;}#kt-layout-id_2ae6df-e5 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}#kt-layout-id_2ae6df-e5 .kt-row-layout-top-sep{height:100px;}#kt-layout-id_2ae6df-e5 .kt-row-layout-top-sep svg{width:100%;}#kt-layout-id_2ae6df-e5 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){#kt-layout-id_2ae6df-e5 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){#kt-layout-id_2ae6df-e5 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){#kt-layout-id_2ae6df-e5 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){#kt-layout-id_2ae6df-e5 > .kt-row-column-wrap{padding-top:28px;padding-bottom:25px;padding-left:16px;padding-right:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}#kt-layout-id_2ae6df-e5 .kt-row-layout-bottom-sep{height:px;}#kt-layout-id_2ae6df-e5 .kt-row-layout-bottom-sep svg{width:%;}}<\/style>\n<div class=\"wp-block-kadence-rowlayout alignnone pro-tip-wrap\"><div id=\"kt-layout-id_2ae6df-e5\" class=\"kt-row-layout-inner kt-layout-id_2ae6df-e5\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-gutter-none kt-v-gutter-default kt-row-valign-top kt-row-layout-right-golden kt-tab-layout-right-golden kt-m-colapse-left-to-right kt-mobile-layout-right-golden  kt-custom-first-width-10  kt-custom-second-width-90\"><style>.kadence-column_a0f1ed-aa > .kt-inside-inner-col{display:flex;}.kadence-column_a0f1ed-aa > .kt-inside-inner-col{min-height:45px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_a0f1ed-aa > .kt-inside-inner-col,.kadence-column_a0f1ed-aa > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_a0f1ed-aa > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column_a0f1ed-aa > .kt-inside-inner-col > *, .kadence-column_a0f1ed-aa > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_a0f1ed-aa > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_a0f1ed-aa > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column_a0f1ed-aa > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_a0f1ed-aa{position:relative;}@media all and (max-width: 1024px){.kadence-column_a0f1ed-aa > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column_a0f1ed-aa > .kt-inside-inner-col > *, .kadence-column_a0f1ed-aa > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_a0f1ed-aa > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_a0f1ed-aa > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column_a0f1ed-aa > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column_a0f1ed-aa > .kt-inside-inner-col > *, .kadence-column_a0f1ed-aa > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_a0f1ed-aa > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_a0f1ed-aa > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_a0f1ed-aa kb-section-dir-horizontal kb-section-md-dir-horizontal pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image_474f4d-05.kb-image-is-ratio-size, .kb-image_474f4d-05 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image_474f4d-05.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image_474f4d-05 .kb-image-is-ratio-size{align-self:unset;}.kb-image_474f4d-05 figure{max-width:45px;}.kb-image_474f4d-05 .image-is-svg, .kb-image_474f4d-05 .image-is-svg img{width:100%;}.kb-image_474f4d-05 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image_474f4d-05\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column_e2556f-3e > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_e2556f-3e > .kt-inside-inner-col,.kadence-column_e2556f-3e > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_e2556f-3e > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_e2556f-3e > .kt-inside-inner-col{flex-direction:column;}.kadence-column_e2556f-3e > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_e2556f-3e > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_e2556f-3e{position:relative;}@media all and (max-width: 1024px){.kadence-column_e2556f-3e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_e2556f-3e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-2 kadence-column_e2556f-3e pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\n            If the bulb is blown or the instrument cluster circuits are damaged, the ECM\/PCM will recognize the absence of that 12 volts that should be coming from the bulb when it&rsquo;s not illuminated, and that&rsquo;ll set the code, too.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/p0400-code-exhaust-gas-recirculation-egr-flow-malfunction\/\" target=\"_self\" rel=\"dofollow\" class=\"uc5cfd60b286ec58832a970e0c65bf79f\"><style> .uc5cfd60b286ec58832a970e0c65bf79f { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .uc5cfd60b286ec58832a970e0c65bf79f:active, .uc5cfd60b286ec58832a970e0c65bf79f:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .uc5cfd60b286ec58832a970e0c65bf79f { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .uc5cfd60b286ec58832a970e0c65bf79f .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .uc5cfd60b286ec58832a970e0c65bf79f .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .uc5cfd60b286ec58832a970e0c65bf79f:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">P0400 Code: Exhaust Gas Recirculation (EGR) Flow Malfunction<\/span><\/div><\/a><\/div><\/div>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<p>A self-test ideally occurs every time you start your vehicle. If you notice, once you insert your key and turn on the ignition, the MIL light normally illuminates for about 1-3 seconds before it goes out. During this time, the PCM checks the performance of the MIL circuit as described above.<\/p>\n\n\n\n<p>Once your PCM detects an irregularity in voltage readings (too high, too low, no voltage), it will trigger the engine code P0650.<\/p>\n\n\n\n<p><em><strong>Note<\/strong>: The definition of each code may vary depending on the vehicle manufacturer. We recommend checking your trusted repair manual or repair database for the exact code definition.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P0650 Code? <\/h2>\n\n\n\n<p>There are several reasons why your scan tool may read a P0650 code. Here are some of the possible triggers of the code: <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Burnt out MIL bulb <\/li><li>MIL circuit problems, such as damaged wiring or poor connections. <\/li><li>Faulty PCM (rare cases) <\/li><li>Failing <a href=\"https:\/\/www.carparts.com\/instrument-cluster\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"instrument cluster\">instrument cluster<\/a> <\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/car-engine-control-unit-1024x683.jpeg\" alt=\"car engine control unit\" class=\"wp-image-16075\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/car-engine-control-unit-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/car-engine-control-unit-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/car-engine-control-unit-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/car-engine-control-unit-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/car-engine-control-unit-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/car-engine-control-unit.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>A faulty PCM may contribute to the issue that sets the P0605 code, although this is quite uncommon.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0650 Code? <\/h2>\n\n\n\n<p>Although the error code P0650 does not cause any driveability problems, it is best to have your vehicle serviced right away once your scanner reads this code. Other faults in your engine may go undetected because of a faulty MIL.<\/p>\n\n\n\n<p>Here are two of the common symptoms you should watch for:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>MIL not turning on when it should<\/li><li>MIL turned on all the time<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"> How to Diagnose the P0650 Code<\/h2>\n\n\n\n<p>Although this is a generic code, keep in mind that the diagnostic steps may vary depending on your vehicle&rsquo;s year, make, and model. If you&rsquo;re not well-versed with auto repair, it is best to let an experienced professional do the job for you.<\/p>\n\n\n\n<p>However, if you are confident with your DIY auto repair skills and you want to diagnose this code yourself, feel free to diagnose it. Here is a video you can watch to help you understand the code better:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"MIL light not working p0650\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/RpKkO_kMYfk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0650 Code<\/h2>\n\n\n\n<p>There is no universal fix for a P0650 code. Repair steps may vary depending on your vehicle&rsquo;s year, make, and model. For example, repair steps for a P0650 in a <a href=\"https:\/\/www.carparts.com\/nissan\/altima\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Nissan Altima\">Nissan Altima<\/a> may vary from a P0650 in a <a href=\"https:\/\/www.carparts.com\/kia\/rio\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Kia Rio.\">Kia Rio.<\/a><\/p>\n\n\n\n<p>If you&rsquo;re not a skilled automotive DIYer, the best course of action is to take your vehicle to an auto repair shop for proper diagnosis and repair. On the other hand, if you&rsquo;re well-versed with auto repair, you may fix the error yourself.<\/p>\n\n\n\n<p>You can use online auto <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"repair manuals and guides\">repair manuals and guides<\/a> to help you identify the repair steps that are applicable to your vehicle. You may also get an ALLDATA single-vehicle subscription to help you with your repair.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Products Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\">\n\n<!-- start of editable content -->\n\n<a href=\"https:\/\/www.carparts.com\/instrument-cluster\" target=\"_blank\" aria-label=\"Instrument Cluster\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/a12l1000_1\">\n<strong>Instrument Cluster<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" aria-label=\"Engine Control Module\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/a1790044v_1\">\n<strong>Engine Control Module<\/strong>\n<\/a>\n\n<!-- end of editable content -->\n\n<\/div>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>The Malfunction Indicator Light (the words &ldquo;Check Engine,&rdquo; &ldquo;Service Engine Soon&rdquo; or the ISO symbol for the Malfunction Indicator (see&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0650-code-malfunction-indicator-light-mil-control-circuit\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":16074,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1314],"tags":[1323],"ppma_author":[2607,2985],"class_list":{"0":"post-16071","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-engine-control-module-2","9":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0650 Code: Malfunction Indicator Light (MIL) Control Circuit - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what the OBD-II code P0650 means, and learn more about the triggers and the common symptoms of this code with the help of this article.\" \/>\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.carparts.com\/blog\/p0650-code-malfunction-indicator-light-mil-control-circuit\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0650 Code: Malfunction Indicator Light (MIL) Control Circuit - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what the OBD-II code P0650 means, and learn more about the triggers and the common symptoms of this code with the help of this article.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0650-code-malfunction-indicator-light-mil-control-circuit\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2021-08-06T09:29:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-29T08:18:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/check-engine-light-on-1024x681.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"681\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0650-code-malfunction-indicator-light-mil-control-circuit\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0650-code-malfunction-indicator-light-mil-control-circuit\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. 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