{"id":75521,"date":"2022-10-14T04:40:25","date_gmt":"2022-10-14T11:40:25","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=75521"},"modified":"2023-10-11T08:13:58","modified_gmt":"2023-10-11T15:13:58","slug":"p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/","title":{"rendered":"P0837 Code: Four-Wheel Drive (4WD) Switch Circuit Range\/Performance"},"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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_07949f-d6 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_07949f-d6 > .kt-inside-inner-col,.kadence-column_07949f-d6 > .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_07949f-d6 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_07949f-d6 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_07949f-d6 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_07949f-d6 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_07949f-d6{position:relative;}@media all and (max-width: 1024px){.kadence-column_07949f-d6 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_07949f-d6 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_07949f-d6 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-5f27fe  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-45746e\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_360850-cd, .wp-block-kadence-advancedheading.kt-adv-heading_360850-cd[data-kb-block=\"kb-adv-heading_360850-cd\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_360850-cd mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_360850-cd[data-kb-block=\"kb-adv-heading_360850-cd\"] 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_360850-cd img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_360850-cd[data-kb-block=\"kb-adv-heading_360850-cd\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_360850-cd summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_360850-cd\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>A problem with the 4WD switch circuit will cause the powertrain control module to log a P0837 trouble code.<\/li><li>4WD switch failure, wiring problems, and issues with the transfer case module can trigger a P0837 code.<\/li><li>If left unaddressed, this code can cause your vehicle to exhibit symptoms like a flashing 4WD drive light and deactivated 4WD mode.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Vehicles with a <a href=\"https:\/\/www.carparts.com\/blog\/4x2-vs-4x4-whats-the-difference-and-which-is-better\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"four-wheel drive\">four-wheel drive<\/a> (4WD) system have a <a href=\"https:\/\/www.carparts.com\/transfer-case\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"transfer case\">transfer case<\/a> that acts as an auxiliary two-speed transmission, directing engine torque to both front and rear <a href=\"https:\/\/www.carparts.com\/axle-assembly\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"axle assemblies\">axle assemblies<\/a>. A 4WD switch circuit is needed to select a mode or configuration that affects the transfer case gear ratios. If the <a href=\"https:\/\/www.carparts.com\/transmission-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"transmission control module\">transmission control module<\/a> (TCM) is unable to detect a signal from the 4WD switch circuit, a P0837 code will be set.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0837 Code Mean?<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Diagnostic trouble code\">Diagnostic trouble code<\/a> (DTC) P0837 stands for &ldquo;Four-Wheel DRIVE (4WD) Switch Circuit Range\/Performance.&rdquo;<\/p>\n\n\n\n<p>The 4WD switch circuit informs the TCM what mode the system is in (two-wheel high, two-wheel low, neutral, four-wheel high, and four-wheel low).<\/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\/2022\/10\/transfer-case-for-car-1024x602.jpg\" alt=\"transfer case for car\" class=\"wp-image-75817\" width=\"1024\" height=\"602\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/transfer-case-for-car-1024x602.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/transfer-case-for-car-300x176.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/transfer-case-for-car-768x452.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/transfer-case-for-car-1536x904.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/transfer-case-for-car-150x88.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/transfer-case-for-car.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The transfer case lets the driver select a low-speed, high-power gear ratio while in 4WD mode.<\/figcaption><\/figure>\n\n\n\n<p>The transfer case lets the driver select a low-speed, high-power gear ratio while in 4WD mode. For a configuration to kick in, the drive axles must be connected. This lets the torque from the front differential flow to the drive wheels.<\/p>\n\n\n\n<p>A problem detected with the 4WD switch circuit will prompt the <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"powertrain control module\">powertrain control module<\/a> (PCM) to log a P0837 trouble code.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P0837 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Causes of the P0837 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>4WD switch failure<\/li><li>Wiring issues<\/li><li>Transfer case module problems<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0837 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Flashing 4WD drive light<\/li><li>Deactivated 4WD mode<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0837 Code<\/h2>\n\n\n\n<p>DTC P0837 is a generic powertrain code that can be logged in 4WD vehicles with an OBD-II system. However, keep in mind that the steps for diagnosis and repair can vary, depending on vehicle specifications.<\/p>\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>Diagnosing a P0837 might require you to use certain tools and conduct inspections, which can be tricky if you&rsquo;re not familiar with the entire process. Luckily, you can always have a certified mechanic do the job for you.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0837 Code<\/h2>\n\n\n\n<p>Without the right tools and technical information, attempting to fix a DTC P0837 can be frustrating and confusing. If done incorrectly, it can even lead to further complications. Under these circumstances, it&rsquo;s best to have the problem fixed by a trained professional to ensure that all steps and protocols are followed properly.<\/p>\n\n\n\n<p>But if you think you can handle the problem on your own, make sure you have the right information before proceeding. Keep in mind that there&rsquo;s no such thing as a magic bullet that will work on all makes and models. So before you begin, you might want to check out guides like those from Chilton or an ALLDATA subscription to get vehicle-specific repair information.<\/p>\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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Vehicles with a four-wheel drive (4WD) system have a transfer case that acts as an auxiliary two-speed transmission, directing engine&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":75818,"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":[1216,1323,1550,1222],"ppma_author":[2607,2855],"class_list":{"0":"post-75521","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-axle-assembly-2","9":"tag-engine-control-module-2","10":"tag-transfer-case","11":"tag-transmission-control-module","12":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0837 Code: Four-Wheel Drive (4WD) Switch Circuit Range\/Performance - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Has your vehicle logged a P0837 code? Find out what it means as well as the most common causes that could have triggered it.\" \/>\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\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0837 Code: Four-Wheel Drive (4WD) Switch Circuit Range\/Performance - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Has your vehicle logged a P0837 code? Find out what it means as well as the most common causes that could have triggered it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/\" \/>\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=\"2022-10-14T11:40:25+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-11T15:13:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-encounters-p0837-code-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1365\" \/>\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=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"sameAs\":\"https:\\\/\\\/www.facebook.com\\\/carpartscom, https:\\\/\\\/twitter.com\\\/CarPartscom, https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/, https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\"},{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"William Guzenski\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"William \u201cBill\u201d Guzenski has produced hundreds of how-to videos for the automotive community. He\u2019s an ASE Certified Master Automobile Technician, and is affiliated with the Specialty Equipment Market Association (SEMA). He loves attending race events and car shows throughout the country, as well as traveling in his 40-foot motorhome, exploring abandoned mines and ghost towns.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/williamguzenski\\\/\",\"sameAs\":\"\"}],\"headline\":\"P0837 Code: Four-Wheel Drive (4WD) Switch Circuit Range\\\/Performance\",\"datePublished\":\"2022-10-14T11:40:25+00:00\",\"dateModified\":\"2023-10-11T15:13:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/\"},\"wordCount\":525,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/mechanic-encounters-p0837-code-scaled.jpg\",\"keywords\":[\"axle-assembly\",\"engine-control-module\",\"transfer-case\",\"transmission-control-module\"],\"articleSection\":[\"OBD-II Trouble Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/\",\"name\":\"P0837 Code: Four-Wheel Drive (4WD) Switch Circuit Range\\\/Performance - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/mechanic-encounters-p0837-code-scaled.jpg\",\"datePublished\":\"2022-10-14T11:40:25+00:00\",\"dateModified\":\"2023-10-11T15:13:58+00:00\",\"description\":\"Has your vehicle logged a P0837 code? Find out what it means as well as the most common causes that could have triggered it.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/mechanic-encounters-p0837-code-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/mechanic-encounters-p0837-code-scaled.jpg\",\"width\":2048,\"height\":1365,\"caption\":\"mechanic encounters p0837 code\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"name\":\"In The Garage with CarParts.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\",\"name\":\"CarParts.com\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"width\":2048,\"height\":398,\"caption\":\"CarParts.com\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/x.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"P0837 Code: Four-Wheel Drive (4WD) Switch Circuit Range\/Performance - In The Garage with CarParts.com","description":"Has your vehicle logged a P0837 code? Find out what it means as well as the most common causes that could have triggered it.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/","og_locale":"en_US","og_type":"article","og_title":"P0837 Code: Four-Wheel Drive (4WD) Switch Circuit Range\/Performance - In The Garage with CarParts.com","og_description":"Has your vehicle logged a P0837 code? Find out what it means as well as the most common causes that could have triggered it.","og_url":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2022-10-14T11:40:25+00:00","article_modified_time":"2023-10-11T15:13:58+00:00","og_image":[{"width":2048,"height":1365,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-encounters-p0837-code-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@carpartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/"},"author":[{"@type":"Person","$id":"4","name":"CarParts.com Research Team","jobTitle":"Expert Automotive Writer","description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","sameAs":"https:\/\/www.facebook.com\/carpartscom, https:\/\/twitter.com\/CarPartscom, https:\/\/www.youtube.com\/@CarPartscomOfficial\/, https:\/\/www.instagram.com\/carpartscom\/"},{"@type":"Person","$id":"4","name":"William Guzenski","jobTitle":"ASE Master Automobile Technician","description":"William \u201cBill\u201d Guzenski has produced hundreds of how-to videos for the automotive community. He\u2019s an ASE Certified Master Automobile Technician, and is affiliated with the Specialty Equipment Market Association (SEMA). He loves attending race events and car shows throughout the country, as well as traveling in his 40-foot motorhome, exploring abandoned mines and ghost towns.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/williamguzenski\/","sameAs":""}],"headline":"P0837 Code: Four-Wheel Drive (4WD) Switch Circuit Range\/Performance","datePublished":"2022-10-14T11:40:25+00:00","dateModified":"2023-10-11T15:13:58+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/"},"wordCount":525,"commentCount":0,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-encounters-p0837-code-scaled.jpg","keywords":["axle-assembly","engine-control-module","transfer-case","transmission-control-module"],"articleSection":["OBD-II Trouble Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/","url":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/","name":"P0837 Code: Four-Wheel Drive (4WD) Switch Circuit Range\/Performance - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/#primaryimage"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-encounters-p0837-code-scaled.jpg","datePublished":"2022-10-14T11:40:25+00:00","dateModified":"2023-10-11T15:13:58+00:00","description":"Has your vehicle logged a P0837 code? Find out what it means as well as the most common causes that could have triggered it.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-encounters-p0837-code-scaled.jpg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-encounters-p0837-code-scaled.jpg","width":2048,"height":1365,"caption":"mechanic encounters p0837 code"},{"@type":"WebSite","@id":"https:\/\/www.carparts.com\/blog\/#website","url":"https:\/\/www.carparts.com\/blog\/","name":"In The Garage with CarParts.com","description":"","publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.carparts.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.carparts.com\/blog\/#organization","name":"CarParts.com","url":"https:\/\/www.carparts.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","width":2048,"height":398,"caption":"CarParts.com"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/carpartscom","https:\/\/x.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"]},{"@type":"Person","@id":"","url":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-encounters-p0837-code-scaled.jpg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-encounters-p0837-code-scaled.jpg","author_info":{"display_name":"","author_link":"https:\/\/www.carparts.com\/blog\/p0837-code-four-wheel-drive-4wd-switch-circuit-range-performance\/"},"authors":[{"term_id":2607,"user_id":1651,"is_guest":0,"slug":"thecpteam","display_name":"CarParts.com Research Team","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":2855,"user_id":1645,"is_guest":0,"slug":"williamguzenski","display_name":"William Guzenski, ASE Certified Master Automobile Technician","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/william-bill-guzenski-carparts-ase-certified-technician.png","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/william-bill-guzenski-carparts-ase-certified-technician.png"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/75521","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=75521"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/75521\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/75818"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=75521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=75521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=75521"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=75521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}