{"id":70181,"date":"2022-06-27T01:39:50","date_gmt":"2022-06-27T08:39:50","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=70181"},"modified":"2026-02-10T19:07:40","modified_gmt":"2026-02-11T03:07:40","slug":"car-pcm-meaning-symptoms-of-failure-and-more","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/","title":{"rendered":"Car PCM: Meaning, Symptoms of Failure, and More"},"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-column70181_942904-c2 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column70181_942904-c2 > .kt-inside-inner-col,.kadence-column70181_942904-c2 > .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-column70181_942904-c2 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column70181_942904-c2 > .kt-inside-inner-col{flex-direction:column;}.kadence-column70181_942904-c2 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column70181_942904-c2 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column70181_942904-c2{position:relative;}@media all and (max-width: 1024px){.kadence-column70181_942904-c2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column70181_942904-c2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column70181_942904-c2 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-5d66e9  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-f5d7a8\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading70181_6bb270-e9, .wp-block-kadence-advancedheading.kt-adv-heading70181_6bb270-e9[data-kb-block=\"kb-adv-heading70181_6bb270-e9\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading70181_6bb270-e9 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading70181_6bb270-e9[data-kb-block=\"kb-adv-heading70181_6bb270-e9\"] 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-heading70181_6bb270-e9 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading70181_6bb270-e9[data-kb-block=\"kb-adv-heading70181_6bb270-e9\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading70181_6bb270-e9 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading70181_6bb270-e9\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The powertrain control module (PCM) controls the powertrain. Some of the parameters it monitors include engine speed, coolant temperature, and throttle position.<\/li>\n\n\n\n<li>The PCM uses data from the different sensors to ensure optimal operation. For example, it uses data from oxygen sensors to determine how much fuel the engine needs.<\/li>\n\n\n\n<li>Software issues, electrical issues, power surges, charging system problems, moisture, and extreme temperatures can affect the PCM.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Modern vehicles are complex, consisting of several systems that work together to ensure their smooth performance. They rely on computers like the PCM or powertrain control module to stay on top of their functions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is a PCM?<\/h2>\n\n\n\n<p>The PCM&nbsp; It is responsible for controlling the powertrain, which includes the engine and transmission. It monitors parameters, such as engine speed, coolant temperature, and throttle position. The device also controls outputs, such as the fuel injectors and ignition coils.<\/p>\n\n\n\n<p>It is known as the engine control module (ECM), digital motor electronics (DME), and <a href=\"https:\/\/www.carparts.com\/transmission-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"transmission control module\">transmission control module<\/a> (TCM) in some vehicles. Generally, an ECM is a PCM if it controls and oversees both the engine and the transmission operations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Does a PCM Work?<\/h2>\n\n\n\n<p>The PCM receives data in the form of signals from the sensors and components connected to it and makes decisions based on them.<\/p>\n\n\n\n<p>Some examples of the decisions it makes include how much fuel to inject into each cylinder, when to fire the <a href=\"https:\/\/www.carparts.com\/spark-plug\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"spark plugs\">spark plugs<\/a>, and when to make the transmission shift to a different gear to deliver the best performance relative to its current condition.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"789\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/Cutout-of-a-Car-ECU-or-PCM-1024x789.jpg\" alt=\"Cutout of a Car ECU or PCM\" class=\"wp-image-70182\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/Cutout-of-a-Car-ECU-or-PCM-1024x789.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/Cutout-of-a-Car-ECU-or-PCM-300x231.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/Cutout-of-a-Car-ECU-or-PCM-768x592.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/Cutout-of-a-Car-ECU-or-PCM-1536x1184.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/Cutout-of-a-Car-ECU-or-PCM-150x116.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/Cutout-of-a-Car-ECU-or-PCM.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Cutout of a Car ECU or PCM<\/figcaption><\/figure>\n\n\n\n<p>When the flow of information between the PCM and other <a href=\"https:\/\/www.carparts.com\/blog\/web-stories\/auto-chip-shortage\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"onboard computers\">onboard computers<\/a> and sensors is undisrupted, the vehicle performs smoothly and efficiently.<\/p>\n\n\n\n<p>However, if something in the system fails, the PCM won&rsquo;t know what to do. For example, if an <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensor\">oxygen sensor<\/a> becomes faulty, the PCM won&rsquo;t know how to adjust the air-fuel mixture going into the engine. The check engine light can turn on and the engine might run roughly or have acceleration issues.<\/p>\n\n\n\n<p>If the PCM itself fails, the engine might not start at all.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Causes PCM Failure?<\/h2>\n\n\n\n<p>PCMs are generally built to last longer than any of a car&rsquo;s sensors. More often than not, software concerns&mdash;not internal hardware problems&mdash;cause PCM issues.<\/p>\n\n\n\n<p>Other common causes of PCM failure include an overload from a shorted component or circuit, power surges, charging system problems, and environmental issues, such as moisture and extreme temperatures.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Are the Symptoms of a Bad PCM?<\/h2>\n\n\n\n<p>Because the PCM is responsible for a wide range of vehicle operations, it can cause many problems when it fails. Here are some of the most common telltale signs of a bad PCM.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.carparts.com\/blog\/car-shuts-off-while-driving-causes-what-to-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Vehicle won&rsquo;t start\">Vehicle won&rsquo;t start<\/a><\/li>\n\n\n\n<li>Engine performance problems<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Active check engine light\">Active check engine light<\/a> or other warning lights<\/li>\n\n\n\n<li>Vehicle can&rsquo;t run emission monitors<\/li>\n<\/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<p>For a more comprehensive discussion on the different symptoms of a bad PCM and what it means for your vehicle, check out this <a href=\"https:\/\/www.carparts.com\/blog\/bad-engine-control-module-ecm-symptoms-repair-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"article\">article<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Can You Drive a Car with a Bad PCM?<\/h2>\n\n\n\n<p>Whether you can drive your car with PCM issues or not depends on the problem itself.<\/p>\n\n\n\n<p>For example, if the internal power supply fails, the fuel injectors won&rsquo;t turn on, so the engine won&rsquo;t receive any fuel. When that happens, your vehicle won&rsquo;t run at all.<\/p>\n\n\n\n<p>If the issue is less severe, it is possible to drive your car with a bad PCM. However, keep in mind that the PCM can develop issues that can compromise your safety on the road without any warning.<\/p>\n\n\n\n<p>So it would be best to stop driving your vehicle until you can have its bad PCM repaired or replaced.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Much Does a PCM Repair Cost?<\/h2>\n\n\n\n<p>If your PCM only needs to be reprogrammed for it to work properly again, you can expect to spend anywhere between $80 and $150 to repair it. The PCM reprogramming might remove errors or bugs in the software and restore the computer&rsquo;s great performance. However, if the PCM itself is damaged, you&rsquo;ll need to replace it entirely.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Much Does It Cost to Replace a PCM?<\/h2>\n\n\n\n<p>An aftermarket PCM replacement can cost you anywhere from $50 to $1000 on parts alone. Its price depends on various factors, like the part&rsquo;s brand, condition, quantity, and your vehicle&rsquo;s specifications.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"602\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/car-engine-control-module-with-white-background-1024x602.jpg\" alt=\"car engine control module with white background\" class=\"wp-image-70190\" style=\"width:1024px;height:602px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/car-engine-control-module-with-white-background-1024x602.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/car-engine-control-module-with-white-background-300x176.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/car-engine-control-module-with-white-background-768x452.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/car-engine-control-module-with-white-background-1536x904.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/car-engine-control-module-with-white-background-150x88.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/car-engine-control-module-with-white-background.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">An aftermarket PCM replacement can cost you anywhere from $50 to $1000 on parts alone.<\/figcaption><\/figure>\n\n\n\n<p>As for labor, you can expect to pay around an extra $100 to $300 to have your damaged PCM professionally replaced. Of course, this is only an estimate and might vary depending on your vehicle and the rates in your area.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What to Consider When Looking for a New PCM<\/h2>\n\n\n\n<p>Shopping for a new PCM can quickly become overwhelming because of the wide variety of options on the market. To help you choose the right one for your vehicle, here are some factors to consider when you&rsquo;re in the market for a PCM replacement:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Application<\/h3>\n\n\n\n<p>Always check for fitment before buying a new PCM for your vehicle. Get a replacement that&rsquo;s designed specifically for your vehicle&rsquo;s year, make, and model to guarantee a perfect fit and hassle-free installation. If you&rsquo;re unsure, refer to your PCM&rsquo;s replacement part number. It&rsquo;s usually on the PCM itself or in your manufacturer&rsquo;s catalog.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Condition<\/h3>\n\n\n\n<p>PCMs are available in new and <a href=\"https:\/\/www.carparts.com\/blog\/what-does-remanufactured-mean-vs-refurbished-rebuilt-reconditioned\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"remanufactured\">remanufactured<\/a> conditions. A new PCM is built from brand new components and materials, while a remanufactured PCM is an old but still perfectly usable module that underwent a thorough upgrade process that lets it compete with new parts.<\/p>\n\n\n\n<p>If you&rsquo;re on a budget, a remanufactured PCM will help you save money without downgrading your car&rsquo;s performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quality<\/h3>\n\n\n\n<p>Make sure to pick a PCM that&rsquo;s made of durable and made of high-quality materials. Otherwise, you might find yourself in inconvenient or dangerous situations, like your car suddenly shutting down in the middle of driving.<\/p>\n\n\n\n<p>The best way to ensure the quality of your new PCM is to order it from a trusted brand.<\/p>\n\n\n\n<p>Finding the perfect replacement PCM for your vehicle should be easy as long as you follow the tips listed above and look through credible product reviews. Also, don&rsquo;t forget to check your vehicle specifications or consult your trusted mechanic to double-check the specifications of your replacement PCM.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Find a Competitively Priced Powertrain Control Module For Your Car<\/h2>\n\n\n\n<p>Replacing a bad powertrain control module isn&rsquo;t something you can put off. It can lead to more serious engine issues that could cost even more to resolve. Fortunately, you can order a new PCM at CarParts.com with only a few clicks.<\/p>\n\n\n\n<p>At <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a>, we make shopping for powertrain control modules and other auto parts a breeze. Enjoy easy navigation through our website, thanks to our integrated vehicle selector that will help you find the most suitable PCM. You can count on round-the-clock support from our friendly and helpful customer service team, who can answer any question you might have about our products.<\/p>\n\n\n\n<p>Don&rsquo;t let a bad PCM render your vehicle undriveable. Take a look at our wide array of competitively priced <a href=\"https:\/\/www.carparts.com\/engine-control-module\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"powertrain control modules\">powertrain control modules<\/a> at CarParts.com and shop for one that fits your needs and budget now.<\/p>\n\n\n\n<div class=\"shop-project\">\n\n    <h2>Shop this Project<\/h2>\n\n    <ul class=\"shop-project-list\">\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/engine-control-module\/ac-delco\/ac21812286\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/images\/ac21812286_1\" alt=\"AC Delco&reg; &ndash; 218-12286 Engine Control Module - Requires Programming, Direct Fit\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/images\/ac21812286_1\" alt=\"AC Delco&reg; &ndash; 218-12286 Engine Control Module - Requires Programming, Direct Fit\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/engine-control-module\/ac-delco\/ac21812286\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"AC Delco&reg; &ndash; 218-12286 Engine Control Module &ndash; Requires Programming, Direct Fit\">AC Delco&reg; &ndash; 218-12286 Engine Control Module &ndash; Requires Programming, Direct Fit<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$185.14<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/engine-control-module\/ac-delco\/ac21812286\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/ignition-coil\/a-premium\/prmapic0138\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/images\/prmapic0138_1\" alt=\"DriveWire &ndash; 8-Piece Kit Ignition Coil, 4 Cylinder, 1.8\/2.0\/2.5 Liter Engine, includes Spark Plugs\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/images\/prmapic0138_1\" alt=\"DriveWire &ndash; 8-Piece Kit Ignition Coil, 4 Cylinder, 1.8\/2.0\/2.5 Liter Engine, includes Spark Plugs\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/ignition-coil\/a-premium\/prmapic0138\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"DriveWire &ndash; 8-Piece Kit Ignition Coil, 4 Cylinder, 1.8\/2.0\/2.5 Liter Engine, includes Spark Plugs\">DriveWire &ndash; 8-Piece Kit Ignition Coil, 4 Cylinder, 1.8\/2.0\/2.5 Liter Engine, includes Spark Plugs<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$108.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/ignition-coil\/a-premium\/prmapic0138\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repn960915\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960915_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960915_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repn960915\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated\">DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$49.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repn960915\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n            <\/ul>\n<\/div>\n\n\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>Modern vehicles are complex, consisting of several systems that work together to ensure their smooth performance. They rely on computers&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":70191,"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":[52,3747],"tags":[1323,1222],"ppma_author":[2607,2855],"class_list":{"0":"post-70181","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diy","8":"category-engine","9":"tag-engine-control-module-2","10":"tag-transmission-control-module","11":"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>Car PCM: Meaning, Symptoms of Failure, and More - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Learn what PCM means, how it works, when to replace it, and what to consider when shopping for a replacement.\" \/>\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\/car-pcm-meaning-symptoms-of-failure-and-more\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Car PCM: Meaning, Symptoms of Failure, and More - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Learn what PCM means, how it works, when to replace it, and what to consider when shopping for a replacement.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" \/>\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:author\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-27T08:39:50+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-11T03:07:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/06\/car-engine-control-module-part-image-with-dark-background.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1333\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, William Guzenski, ASE Certified Master Automobile Technician\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/CarPartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"CarParts.com Research Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/car-pcm-meaning-symptoms-of-failure-and-more\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/car-pcm-meaning-symptoms-of-failure-and-more\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"1651\",\"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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