{"id":16247,"date":"2021-06-29T20:20:00","date_gmt":"2021-06-30T03:20:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=16247"},"modified":"2024-06-05T18:40:16","modified_gmt":"2024-06-06T01:40:16","slug":"p2610-code-ecm-pcm-engine-off-timer-performance","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2610-code-ecm-pcm-engine-off-timer-performance\/","title":{"rendered":"P2610 Code: ECM\/PCM Engine Off Timer 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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_dd1c9e-44 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_dd1c9e-44 > .kt-inside-inner-col,.kadence-column_dd1c9e-44 > .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_dd1c9e-44 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_dd1c9e-44 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_dd1c9e-44 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_dd1c9e-44 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_dd1c9e-44{position:relative;}@media all and (max-width: 1024px){.kadence-column_dd1c9e-44 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_dd1c9e-44 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_dd1c9e-44 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-f713fd  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-481582\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_fe1be9-78, .wp-block-kadence-advancedheading.kt-adv-heading_fe1be9-78[data-kb-block=\"kb-adv-heading_fe1be9-78\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_fe1be9-78 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_fe1be9-78[data-kb-block=\"kb-adv-heading_fe1be9-78\"] 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_fe1be9-78 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_fe1be9-78[data-kb-block=\"kb-adv-heading_fe1be9-78\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_fe1be9-78 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_fe1be9-78\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Diagnostic Trouble Code (DTC) P2610 stands for &ldquo;ECM\/PCM Engine Off Timer Performance.&rdquo;<\/li><li>The P2610 code indicates a malfunction in the engine control module (ECM) or powertrain control module (PCM) regarding an inability to identify the state of the engine.<\/li><li>Common issues that may trigger the code include internal PCM issues, PCM power or ground circuit problems, engine cooling system problems, a faulty engine coolant temperature sensor (ECT), and electrical problems.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>An <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD-II code\">OBD-II code<\/a> is designed to tell you possible issues in your vehicle. For you to resolve one, you must first know what it means. If you&rsquo;re having trouble figuring out what a P2610 code means and how to clear it, you&rsquo;ve come to the right place. This short guide will give you what you need to know about code P2610.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2610 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic Trouble Code (DTC) P2610 stands for &ldquo;ECM\/PCM Engine Off Timer Performance.&rdquo; It means there is a malfunction in the <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"engine control module\">engine control module<\/a> (ECM) or powertrain control module (PCM) regarding an inability to identify the state of an <a href=\"https:\/\/www.carparts.com\/blog\/car-engine-parts\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"engine\">engine<\/a>. More specifically, it points to not being able to detect the length of time in which the engine has been turned off.<\/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\/07\/aftermarket-engine-control-module-1024x219.jpg\" alt=\"aftermarket engine control module\" class=\"wp-image-41886\" width=\"1024\" height=\"219\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/aftermarket-engine-control-module-1024x219.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/aftermarket-engine-control-module-300x64.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/aftermarket-engine-control-module-768x164.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/aftermarket-engine-control-module-150x32.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/aftermarket-engine-control-module.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The vehicle has either the ECM or PCM as its engine controller, which relies on signals from the engine to identify how long the engine has been shut off.<\/figcaption><\/figure>\n\n\n\n<p>The vehicle has either the ECM or PCM as its engine controller, which relies on signals from the engine to identify how long the engine has been shut off. In many cases, the control module will use the <a href=\"https:\/\/www.carparts.com\/coolant-temperature-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"engine coolant temperature sensor\">engine coolant temperature sensor<\/a> signal to determine how long the engine has stopped operation.<\/p>\n\n\n\n<p>The P2610 code is stored once the <a href=\"https:\/\/www.carparts.com\/blog\/web-stories\/auto-chip-shortage\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"ECM or PCM\">ECM or PCM<\/a> fails to access this timer or the timer simply isn&rsquo;t working. The malfunction indicator lamp (MIL) may also be illuminated to indicate the issue. The MIL also typically activates for multiple failed ignition cycles.<\/p>\n\n\n\n<p>To learn the possible causes of code P2610, read the next section.<\/p>\n\n\n\n<p>For a technical discussion about the Engine Off Timer diagnostic routine and how it may trigger OBD codes, read our explanation <a href=\"#What_is_the_Engine_Off_Timer_Diagnostic_Routine_and_How_Does_It_Trigger_an_OBD_Code\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"here\">here<\/a>.<\/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><em><strong>Note<\/strong>: The definition of code P2610 may differ 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 Possible Causes of the P2610 Code?<\/h2>\n\n\n\n<p>Here are some common triggers of the error code P2610:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Internal PCM problem<\/li><li>PCM power or ground circuit problems<\/li><li>Faulty <a href=\"https:\/\/www.carparts.com\/blog\/engine-coolant-temperature-sensor-purpose-location-and-failure-signs\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"engine coolant temperature sensor (ECT)\">engine coolant temperature sensor (ECT)<\/a><\/li><li>Engine cooling system problems<\/li><li>Electrical interference <\/li><li>Dead battery or poor <a href=\"https:\/\/www.carparts.com\/battery-cable\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"battery cable\">battery cable<\/a>connections <\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P2610 Code?<\/h2>\n\n\n\n<p>Depending on the severity, other related diagnostic trouble codes may also be stored. You may notice the following symptoms if you drive a vehicle with a logged P2610 trouble code:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Illuminated <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><\/li><li>Engine drivability issues may appear eventually<\/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\/mechanic-replacing-drained-car-battery-1024x685.jpeg\" alt=\"mechanic replacing drained car battery\" class=\"wp-image-16252\" width=\"1024\" height=\"685\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-replacing-drained-car-battery-1024x685.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-replacing-drained-car-battery-300x201.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-replacing-drained-car-battery-768x514.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-replacing-drained-car-battery-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-replacing-drained-car-battery-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-replacing-drained-car-battery.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>A dead battery or poor battery connections may contribute to the setting of the P2610 trouble code.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P2610 Code<\/h2>\n\n\n\n<p>Since a lot of components depend on the ECM\/PCM internal engine off timer performance, the code P2610 must be resolved immediately. Diagnosing it, however, can be tricky given that it has many possible causes. Keep in mind that the diagnostic and repair steps may vary depending on your vehicle&rsquo;s make and model.<\/p>\n\n\n\n<p>As this is a complicated code, it is best to <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"refer to your manufacturer&rsquo;s repair information\">refer to your manufacturer&rsquo;s repair information<\/a> for diagnostic strategies. Leave the job to a mechanic or technician if you are not well-versed with auto repair.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P2610 Code<\/h2>\n\n\n\n<p>Just like most OBD-II codes, there is no single solution for the P2610 code. Repair and diagnostic steps depend on the specifications of your vehicle. While code P2610 shares similar triggers and symptoms with several other engine codes, this does not mean that it has a general solution.<\/p>\n\n\n\n<p>If you&rsquo;re not familiar with auto repair, you should leave the job to an expert. However, if you&rsquo;re a skilled automotive DIYer, you can check out <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=\"online auto repair manuals and guides\">online auto repair manuals and guides<\/a> to help you identify the right repair steps for your vehicle. <\/p>\n\n\n\n<p>For instance, an ALLDATA subscription provides detailed factory repair information that you can use to accurately resolve issues in your car. This should help you resolve this error code and should be a good reference for other issues you may encounter in the future.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is the Engine Off Timer Diagnostic Routine and How Does It Trigger an OBD Code?<\/h2>\n\n\n\n<p>The purpose of the ECM\/PCM&rsquo;s Engine Off Timer diagnostic routine is to determine if the Powertrain Control Module (PCM) internal clock is running as expected.<\/p>\n\n\n\n<p>This engine off timer is used as an enable condition for various OBD monitors.<\/p>\n\n\n\n<p>As part of the OBD2 system, there are vehicle platforms that perform certain tests after the engine has been shut off for a certain amount of time. One such test is the EVAP system on vehicles that measure fuel tank pressure as the vehicle cools down to determine whether there are evaporative emission leaks.<\/p>\n\n\n\n<p>Some other systems wait a certain amount of cooldown time before they &ldquo;wake up&rdquo; the O2 heaters and measure the calculated resistance of the heaters as they warm them up.<\/p>\n\n\n\n<p>Most folks don&rsquo;t know what their ECM\/PCM is up to in the middle of the night. Note that not all vehicles do this, but the ones that do like to know if the ECM\/PCM can keep up with how long the engine has been turned off, and that&rsquo;s what this code is all about.<\/p>\n\n\n\n<p>The Engine Off Timer rationality test on some vehicles basically consists of two different tests the ECM\/PCM uses to evaluate shut down time.<\/p>\n\n\n\n<p>During an initial engine start, if it is determined that the engine start undergoes a cold start (determined by comparing the engine coolant temperature versus ambient temperature), the <strong>Slow Test<\/strong> will be run and a long shut down time would be expected.<\/p>\n\n\n\n<p>If it is determined that the engine start is not a cold start, the <strong>Fast Test<\/strong> will be run and a short shut down time is expected because the engine has not been cooled down to cold start conditions.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>The P1607 DTC will set if the Slow Test diagnostic runs and fails.<\/li><li>The P2610 DTC will set if the Fast Test diagnostic runs and fails.<\/li><\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>During an initial engine start, if it is determined that the engine start undergoes a cold start (determined by comparing the engine coolant temperature versus ambient temperature), the Slow Test will be run and a long shut down time would be expected.<\/p><p> If it is determined that the engine start is not a cold start, the Fast Test will be run and a short shut down time is expected because the engine has not been cooled down to cold start conditions.<\/p><cite>&ndash;<a href=\"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Richard McCuistian, ASE Certified Master Automobile Technician\">Richard McCuistian, ASE Certified Master Automobile Technician<\/a><\/cite><\/blockquote>\n\n\n\n<p><\/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\/coolant-temperature-sensor\" target=\"_blank\" aria-label=\"Coolant Temperature Sensor\" 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\/reph312802_1\">\n<strong>Coolant Temperature Sensor<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/battery-cable\" target=\"_blank\" aria-label=\"Battery Cable\" 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\/rb32460002_1\">\n<strong>Battery Cable<\/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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>An OBD-II code is designed to tell you possible issues in your vehicle. For you to resolve one, you must&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2610-code-ecm-pcm-engine-off-timer-performance\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":16251,"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":[3354,1323],"ppma_author":[2607,2985],"class_list":{"0":"post-16247","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-car-engine-all-articles","9":"tag-engine-control-module-2","10":"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>P2610 Code: ECM\/PCM Engine Off Timer Performance - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Having problems with the diagnostic trouble code P2610? 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