{"id":528511,"date":"2026-07-17T15:18:30","date_gmt":"2026-07-17T19:18:30","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=528511"},"modified":"2026-07-17T15:18:30","modified_gmt":"2026-07-17T19:18:30","slug":"2017-mitsubishi-mirage-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2017-mitsubishi-mirage-pcm-replacement-guide\/","title":{"rendered":"2017 Mitsubishi Mirage PCM\/ECM Replacement and Reprogramming Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2017 Mitsubishi Mirage PCM\/ECM Replacement and Reprogramming Guide<\/h1>\n<p class=\"hero-subtitle\">The Powertrain Control Module (PCM) or Engine Control Module (ECM) in your 2017 Mitsubishi Mirage manages fuel delivery, ignition timing, and emissions systems. Failure may cause erratic engine behavior, poor performance, or a complete no-start condition.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>The PCM\/ECM in the 2017 Mirage controls critical engine functions and may fail due to electrical issues or age.<\/li>\n<li>Replacement typically requires 1.4 hours of labor, plus additional time for relearn procedures.<\/li>\n<li>Factory procedures include a module relearn or reset, which can add 0.3 to 0.5 hours to the job.<\/li>\n<li>Common symptoms include stalling, misfires, or warning lights on the dashboard.<\/li>\n<li>Flagship One provides VIN-programmed units to eliminate the need for post-install programming.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>If your 2017 Mitsubishi Mirage has been acting up\u2014stalling unexpectedly, refusing to start, or throwing warning lights\u2014it may be time to consider the Powertrain Control Module (PCM) or Engine Control Module (ECM). These components act as the brain of your vehicle\u2019s engine, managing everything from fuel injection to ignition timing. When they fail, the symptoms can range from subtle performance issues to a complete breakdown. Replacing the module isn\u2019t just about swapping parts; it involves precise labor steps and often requires a relearn procedure to ensure everything communicates correctly. Understanding what the PCM\/ECM does, where it\u2019s located, and what to expect during replacement can save you time and frustration. This guide covers the essentials, from labor times to common symptoms, so you can make an informed decision about your Mirage\u2019s repair needs.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2017 Mitsubishi Mirage<\/h2>\n<p>The Powertrain Control Module (PCM) or Engine Control Module (ECM) in your 2017 Mitsubishi Mirage is responsible for regulating the engine\u2019s performance. It processes data from sensors throughout the vehicle to optimize fuel delivery, ignition timing, and emissions control. Without a functioning PCM\/ECM, your Mirage may struggle to start, run inefficiently, or even enter a fail-safe mode that limits power. This module is particularly critical in modern vehicles, where precise control over engine functions directly impacts fuel economy and drivability. If the module fails, you might notice symptoms like rough idling, poor acceleration, or warning lights on the dashboard. Replacing it involves not just installing a new unit but also ensuring it\u2019s properly programmed to communicate with the rest of your vehicle\u2019s systems. For the Mirage, <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/mitsubishi-pcm-ecm-ecu-engine-computer\/mirage-engine-computers.html\">replacement engine computers for the Mirage<\/a> are designed to meet factory specifications, making the repair process smoother. The PCM\/ECM also plays a role in diagnosing issues, as it stores trouble codes that can help pinpoint problems during a scan.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>In the 2017 Mitsubishi Mirage, the Powertrain Control Module (PCM) or Engine Control Module (ECM) is typically located in the engine bay, though the exact position may vary slightly depending on the vehicle\u2019s configuration. Replacing the module involves disconnecting the battery, removing the necessary covers or panels to access it, and carefully unplugging the wiring harness. The labor time for removal and reinstallation (R&amp;R) is typically 1.4 hours, according to factory estimates. This includes the time needed to disconnect and reconnect electrical connectors, as well as securing the new module in place. After installation, the module may require a relearn procedure, which can add an additional 0.5 hours to the job. It\u2019s important to follow the manufacturer\u2019s torque specifications when securing the module to avoid damaging the housing or connectors.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Operation<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Configuration<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Book Time<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">1.4 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain Control Module Relearn<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.5 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module Reset<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.3 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module Relearn<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.5 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">1.4 hr<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After replacing the Powertrain Control Module (PCM) or Engine Control Module (ECM) in your 2017 Mitsubishi Mirage, the factory procedure typically requires a relearn process to ensure the new module communicates correctly with the vehicle\u2019s sensors and systems. This relearn can take up to 0.5 hours and may involve using a scan tool to reset the module or perform a drive cycle to recalibrate it. However, if you opt for <a href=\"https:\/\/www.fs1inc.com\/2017-mitsubishi-mirage-1-2l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\">a VIN-programmed replacement unit<\/a>, these steps are already completed before the unit arrives. This means you can install the module and drive your Mirage without needing additional programming, saving time and reducing the risk of errors during the relearn process. The factory also specifies an ECM reset procedure, which takes about 0.3 hours, but this is often unnecessary with a pre-programmed unit.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>When the Powertrain Control Module (PCM) or Engine Control Module (ECM) in your 2017 Mitsubishi Mirage begins to fail, you may notice a range of symptoms that can affect drivability and performance. One of the most common signs is a no-start condition, where the engine cranks but refuses to turn over. Stalling or rough idling may also occur, particularly when the vehicle is at a stop or during acceleration. Misfires, poor fuel economy, or a noticeable drop in power can indicate that the module is struggling to regulate fuel delivery or ignition timing. Warning lights on the dashboard, such as the check engine light, are another red flag, often accompanied by trouble codes stored in the system. For example, a fault like an internal memory error in the SRS or OCM ECU may appear, signaling a deeper issue with the module\u2019s ability to retain data. In some cases, the vehicle may enter a fail-safe mode, limiting engine power to prevent damage. If you experience any of these symptoms, it\u2019s worth having the PCM\/ECM scanned for trouble codes to determine if replacement is necessary.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Factory Service Bulletins Worth Knowing<\/h2>\n<p>Mitsubishi has issued several technical service bulletins (TSBs) related to the Powertrain Control Module (PCM) and related systems in the 2017 Mirage. One bulletin addresses Diagnostic Trouble Codes (DTCs) B1691 and B1558, which may appear in the SRS ECU or OCM ECU memory. These codes often indicate an internal fault within the module or a communication error between systems. Another bulletin covers DTCs B223D or B1558 found in the SRS-ECU memory, which may require a software update or module replacement to resolve. Additionally, Mitsubishi has released a correction to the SRS-ECU diagnostic trouble code list, updating the service manual to reflect the latest diagnostic procedures. If your Mirage is experiencing these codes, it\u2019s worth checking for applicable TSBs to ensure the issue is addressed correctly.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Bulletin<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Subject<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">What It Addresses<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Technical Document &gt; Tech Talk Articles &gt; DTC B1691 &amp; B1558 Found In SRS ECU and OCM ECU Memory<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Technical Document &gt; Tech Talk Articles &gt; DTC B223 D or B1558 Found In SRS-ECU Memory<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Technical Document &gt; Technical Service Bulletins &gt; Correction to SRS-ECU Diagnostic Trouble Cod<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 2017 Mitsubishi Mirage<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Keep your vehicle\u2019s battery and charging system in good condition to avoid voltage spikes that can damage the PCM\/ECM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure all electrical connectors and grounds are clean and securely fastened to prevent corrosion or poor connections.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump-starting your Mirage with improper voltage, as this can cause electrical surges that harm the module.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address any warning lights or trouble codes promptly to prevent further damage to the PCM\/ECM or related systems.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect the PCM\/ECM connector seals regularly to ensure they remain intact and free from moisture or debris.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Use a quality scan tool to monitor the module\u2019s health during routine maintenance checks.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>How do I know if my 2017 Mitsubishi Mirage needs a new PCM\/ECM?<\/h3>\n<p>Common signs include a no-start condition, stalling, rough idling, or warning lights on the dashboard. If your Mirage is throwing trouble codes related to the engine or emissions systems, the PCM\/ECM may be failing. A diagnostic scan can confirm whether the module needs replacement.<\/p>\n<h3>Can I replace the PCM\/ECM in my Mirage myself?<\/h3>\n<p>While it\u2019s possible to replace the module yourself, it requires careful handling of electrical connectors and may involve a relearn procedure. If you\u2019re not experienced with automotive electronics, it\u2019s best to have a professional perform the replacement to avoid damaging the new unit or other systems.<\/p>\n<h3>What\u2019s the difference between a PCM and an ECM in my 2017 Mirage?<\/h3>\n<p>In the Mirage, the terms PCM (Powertrain Control Module) and ECM (Engine Control Module) are often used interchangeably, as the module controls both engine and transmission functions. The key difference is that the PCM typically integrates more systems, but in this vehicle, they serve the same purpose.<\/p>\n<h3>Why does my Mirage need a relearn procedure after PCM\/ECM replacement?<\/h3>\n<p>The relearn procedure ensures the new module synchronizes with the vehicle\u2019s sensors and systems. Without it, the Mirage may run poorly or throw additional trouble codes. Factory procedures often require a scan tool to complete this step, which can take up to 0.5 hours.<\/p>\n<h3>What happens if I ignore a failing PCM\/ECM in my Mirage?<\/h3>\n<p>Ignoring a failing PCM\/ECM can lead to worsening performance issues, such as stalling, misfires, or even a complete no-start condition. Over time, it may also cause damage to other components, like the catalytic converter or sensors, leading to more costly repairs.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>If your 2017 Mitsubishi Mirage is experiencing symptoms of a failing PCM\/ECM, you have options for replacement. A new module from the dealer will require programming and may come with a higher cost, while a refurbished or remanufactured unit can offer a more affordable solution. Flagship One provides VIN-programmed replacement modules designed to plug in and play, eliminating the need for additional programming. This can save you time and ensure your Mirage runs smoothly without the hassle of post-install procedures.<\/p>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2017-mitsubishi-mirage-1-2l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2017 Mitsubishi Mirage<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/mitsubishi-pcm-ecm-ecu-engine-computer\/mirage-engine-computers.html\">Mitsubishi Mirage module lineup<\/a> covers other engine configurations as well.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Final Thoughts<\/h2>\n<p>The Powertrain Control Module (PCM) or Engine Control Module (ECM) in your 2017 Mitsubishi Mirage plays a critical role in keeping your vehicle running smoothly. If you\u2019re experiencing symptoms like stalling, no-start conditions, or warning lights, it may be time to consider a replacement. Understanding the labor involved, the importance of programming, and the common signs of failure can help you make an informed decision. Whether you choose a new or remanufactured unit, ensuring it\u2019s properly programmed will save you time and frustration down the road.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>2017 Mitsubishi Mirage with stalling, no-start, or warning lights may need a Powertrain Control Module replacement. Learn symptoms, labor times, and why a pre-programmed unit simplifies repairs.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,295],"tags":[345,825,296],"class_list":["post-528511","post","type-post","status-publish","format-standard","hentry","category-car","category-mitsubishi","tag-345","tag-mirage","tag-mitsubishi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2017 Mitsubishi Mirage PCM\/ECM Replacement and Reprogramming Guide - Flagship One Blog<\/title>\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.fs1inc.com\/blog\/2017-mitsubishi-mirage-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2017 Mitsubishi Mirage PCM\/ECM Replacement and Reprogramming Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"2017 Mitsubishi Mirage with stalling, no-start, or warning lights may need a Powertrain Control Module replacement. Learn symptoms, labor times, and why a pre-programmed unit simplifies repairs.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/2017-mitsubishi-mirage-pcm-replacement-guide\/\" \/>\n<meta property=\"og:site_name\" content=\"Flagship One Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/flagshipone\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/flagshipone\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-17T19:18:30+00:00\" \/>\n<meta name=\"author\" content=\"FlagshipOne\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:site\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"FlagshipOne\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2017-mitsubishi-mirage-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2017-mitsubishi-mirage-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"2017 Mitsubishi Mirage PCM\\\/ECM Replacement and Reprogramming Guide\",\"datePublished\":\"2026-07-17T19:18:30+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2017-mitsubishi-mirage-pcm-replacement-guide\\\/\"},\"wordCount\":1743,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"keywords\":[\"2017\",\"mirage\",\"Mitsubishi\"],\"articleSection\":[\"Car\",\"Mitsubishi\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2017-mitsubishi-mirage-pcm-replacement-guide\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2017-mitsubishi-mirage-pcm-replacement-guide\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2017-mitsubishi-mirage-pcm-replacement-guide\\\/\",\"name\":\"2017 Mitsubishi Mirage PCM\\\/ECM Replacement and Reprogramming Guide - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"datePublished\":\"2026-07-17T19:18:30+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2017-mitsubishi-mirage-pcm-replacement-guide\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2017-mitsubishi-mirage-pcm-replacement-guide\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2017-mitsubishi-mirage-pcm-replacement-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"2017 Mitsubishi Mirage PCM\\\/ECM Replacement and Reprogramming Guide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"name\":\"Flagship One Blog\",\"description\":\"Flagship One Inc. 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