{"id":71860,"date":"2022-09-06T02:04:10","date_gmt":"2022-09-06T09:04:10","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=71860"},"modified":"2023-08-22T19:03:07","modified_gmt":"2023-08-23T02:03:07","slug":"u0402-code-invalid-data-received-from-tcm","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/u0402-code-invalid-data-received-from-tcm\/","title":{"rendered":"U0402 Code: Invalid Data Received from TCM"},"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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_1a6a16-74 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_1a6a16-74 > .kt-inside-inner-col,.kadence-column_1a6a16-74 > .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_1a6a16-74 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_1a6a16-74 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_1a6a16-74 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_1a6a16-74 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_1a6a16-74{position:relative;}@media all and (max-width: 1024px){.kadence-column_1a6a16-74 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_1a6a16-74 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_1a6a16-74 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-6734f1  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-7cf5ec\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_0e3643-97, .wp-block-kadence-advancedheading.kt-adv-heading_0e3643-97[data-kb-block=\"kb-adv-heading_0e3643-97\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_0e3643-97 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_0e3643-97[data-kb-block=\"kb-adv-heading_0e3643-97\"] 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_0e3643-97 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_0e3643-97[data-kb-block=\"kb-adv-heading_0e3643-97\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_0e3643-97 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_0e3643-97\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The diagnostic trouble code (DTC) U0402 stands for &ldquo;Invalid Data Received from TCM.&rdquo;<\/li><li>The powertrain control module (PCM) will set code U0402 when it receives implausible data from the transmission control module (TCM).<\/li><li>Common causes of the U0402 code include inaccurate sensor readings, a dead battery, bad TCM, and transmission failure.<\/li><li>The symptoms of a U0402 code can range from the check engine light turning on to the transmission behaving erratically to the PCM putting the vehicle in limp mode.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>If your vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"check engine light illuminates\">check engine light illuminates<\/a>, you should use a scan tool to check if it has any logged <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"trouble codes\">trouble codes<\/a>. If the U0402 code has been stored, read this article to find out about the code&rsquo;s definition, common causes, and common symptoms.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the U0402 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code (DTC) U0402 code stands for Invalid Data Received from TCM. This code is logged when modules on the data network are receiving implausible data from the transmission control module (TCM).<\/p>\n\n\n\n<p>Modern vehicles use a data network that allows vehicle control modules to communicate with each other. These control modules expect to receive a specific type of information from related modules. The devices are programmed to receive a specific type of information. This can be a serious diagnostic trouble code (DTC) because other modules need information from the TCM. This DTC can directly affect safety systems like traction control and stability control.<\/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\/08\/automotive-transmission-control-module-1024x793.jpg\" alt=\"automotive transmission control module\" class=\"wp-image-71878\" width=\"1024\" height=\"793\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automotive-transmission-control-module-1024x793.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automotive-transmission-control-module-300x232.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automotive-transmission-control-module-768x594.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automotive-transmission-control-module-150x116.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automotive-transmission-control-module.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Your car registers the code U0402 when modules on the data network receive implausible data from the TCM.<\/figcaption><\/figure>\n\n\n\n<p><em><strong>Note: <\/strong>The definition of the U0402 code can 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 U0402 Code?<\/h2>\n\n\n\n<p>The U0402 code can be caused by the following problems:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>One or more faulty sensors causing the TCM to send invalid data<\/li><li>Faulty <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wiring\">wiring<\/a><\/li><li>A <a href=\"https:\/\/www.carparts.com\/blog\/5-signs-of-a-bad-battery\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"dead battery or charging system problems\">dead battery or charging system problems<\/a><\/li><li>Circuit issues, such as a damaged wire or poor connection<\/li><li>Faulty TCM<\/li><li>Transmission Failure<\/li><li>PCM Failure<\/li><li>Data network problems<\/li><\/ul>\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<h2 class=\"wp-block-heading\">What are the Common Symptoms of the U0402 Code?&nbsp;<\/h2>\n\n\n\n<p>The P0402 code can cause your vehicle to show the following symptoms:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Illuminated check engine light\">Illuminated check engine light<\/a><\/li><li>Erratic transmission behavior<\/li><li>Vehicle enters <a href=\"https:\/\/www.carparts.com\/blog\/web-stories\/what-is-limp-mode\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"limp mode\">limp mode<\/a><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the U0402 Code<\/h2>\n\n\n\n<p>The U0401 code might be a generic transmission-related code that has a list of common causes, but you should still verify if your vehicle has those issues before you execute repairs.<\/p>\n\n\n\n<p>Diagnosing DTCs typically involves inspecting and testing the concerned components. This task might require a lot of technical knowledge and specialized tools. Additionally, many of the components that can trigger the trouble code are difficult to properly access and inspect.&nbsp; If you don&rsquo;t think you&rsquo;re up to the task, then you shouldn&rsquo;t hesitate to leave the task to a professional mechanic.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the U0402 Code<\/h2>\n\n\n\n<p>When it comes to fixing the U0401 code, it is probably best to let a mechanic do the job. However, if you think your automotive know-how is good enough to do the fix yourself, it will be best to follow the right steps and proper protocols to avoid any further issues down the line. Finding the root cause of the issue is paramount because your course of action will depend on the diagnosis. There is no single solution that will guarantee a fix because repair procedures can vary greatly between different makes and models.<\/p>\n\n\n\n<p>After finding the problem, you can look at reputable <a href=\"https:\/\/www.carparts.com\/blog\/best-online-resources-to-help-you-learn-how-to-fix-cars\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"internet repair resources and how-to guides\">internet repair resources and how-to guides<\/a> like those from Chilton. You may also want to check out an ALLDATA single vehicle subscription to find 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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>If your vehicle&rsquo;s check engine light illuminates, you should use a scan tool to check if it has any logged&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/u0402-code-invalid-data-received-from-tcm\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":71877,"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":[1222],"ppma_author":[2607,2855],"class_list":{"0":"post-71860","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-transmission-control-module","9":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>U0402 Code: Invalid Data Received from TCM - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Is the OBD-II trouble code U0402 registering on your scan tool? 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