{"id":532820,"date":"2026-07-17T16:23:31","date_gmt":"2026-07-17T20:23:31","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=532820"},"modified":"2026-07-17T16:23:31","modified_gmt":"2026-07-17T20:23:31","slug":"2010-chrysler-300-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2010-chrysler-300-pcm-replacement-guide\/","title":{"rendered":"2010 Chrysler 300 2.7L PCM Replacement and Relearn Service Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2010 Chrysler 300 2.7L PCM Replacement and Relearn Service Guide<\/h1>\n<p class=\"hero-subtitle\">If your 2010 Chrysler 300 2.7L uses a Powertrain Control Module that manages engine and transmission functions, a failure can trigger misfires, idle instability, or a no\u2011start condition. The PCM monitors sensors, controls fuel injection, ignition timing, and shift logic to keep the vehicle running smoothly.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>PCM replacement takes approximately 1.0 hour.<\/li>\n<li>Relearning the engine control module requires 0.5 hour.<\/li>\n<li>Factory service bulletins address performance derate and rough idle issues.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>Replacing the Powertrain Control Module on a 2010 Chrysler 300 2.7L can restore smooth acceleration, eliminate idle problems, and resolve engine codes that prevent a start. This guide explains where the PCM sits in the engine bay, the labor times for removal, installation, and relearning, and how the module\u2019s firmware is managed by Flagship One. You will learn what to expect during the process, how to avoid common pitfalls, and why a VIN\u2011programmed unit saves you from extra steps after the swap.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2010 Chrysler 300<\/h2>\n<p>The Powertrain Control Module on the 2010 Chrysler 300 2.7L is the brain that coordinates engine timing, fuel delivery, and transmission shift logic. When it misreads sensor data or its internal software becomes corrupted, the vehicle may stall, misfire, or refuse to start. The module also limits top speed until a relearn procedure is run, ensuring proper throttle response. <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/chrysler-pcm-ecm-ecu-engine-computer\/300m-engine-computers.html\">Chrysler 300 2.7L PCM<\/a> plays a key role in maintaining power delivery and emissions compliance.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>The PCM is located in the engine compartment, mounted on the firewall near the front of the vehicle. To replace it, disconnect the battery, remove the cover panel, and detach the electrical connector. The module is secured with a single mounting bolt; removal requires 1.0 hour of labor. Install the new unit, reconnect the wiring, and torque the mounting bolt to manufacturer specifications. Finally, reconnect the battery and allow a brief warm\u2011up before proceeding to relearn.<\/p>\n<figure style=\"margin:22px auto;text-align:center;max-width:720px\"><img decoding=\"async\" style=\"max-width:100%;height:auto;border:1px solid #e2e6ec;border-radius:8px\" src=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2010-chrysler-300-pcm-location-card-1.webp\" alt=\"2010 Chrysler 300 PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">Typical PCM mounting area on the 2010 Chrysler 300 (reference).<\/figcaption><\/figure>\n<div style=\"background:#f7f9fc;border:1px solid #e2e8f2;border-radius:10px;padding:18px 24px;margin:18px 0\">\n<h3 style='margin-top:0'>How to Reach the PCM on the 2010 Chrysler 300<\/h3>\n<ol style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> and isolate the.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the cowl panel cover.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the bolt that secures.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the electrical.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the PCM and bracket.<\/li>\n<\/ol>\n<p style='margin:10px 0 0 0'><em>Work with the ignition off, and treat the module as static-sensitive: avoid touching the connector pins at any point.<\/em><\/p>\n<\/div>\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\">1.0 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\">1.0 hr<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After the new PCM is installed, the factory requires a relearn of engine parameters and speed limit settings. Because Flagship One units arrive VIN\u2011programmed, these steps are already completed, eliminating the need for a separate relearn procedure. <a href=\"https:\/\/www.fs1inc.com\/2010-chrysler-300-2-7l-engine-computer-pcm-ecm-ecu-programmed.html\">VIN\u2011programmed replacement unit<\/a> ensures the module is calibrated for your specific vehicle from the moment it is installed.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>When the PCM fails, you may notice a no\u2011start condition, sudden stalling, or irregular idle. Misfire codes and loss of communication between the scan tool and the module can also appear. If the trouble code <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\">P0601<\/a> is present, it indicates a PCM failure and may be accompanied by other engine performance issues. Addressing the PCM promptly can prevent further damage to the engine and transmission.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2010 Chrysler 300<\/h2>\n<p>The 2010 Chrysler 300 2.7L may generate internal trouble codes that point to issues within the Powertrain Control Module. Common codes include P0601 and P0606, which indicate communication or functional problems.<\/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\">Code<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Meaning<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Full Guide<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0601<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal memory checksum error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\" style=\"color:#0563C1\"><b><u>Full P0601 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0606<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module processor failure<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#0563C1\"><b><u>Full P0606 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Factory Service Bulletins Worth Knowing<\/h2>\n<p>Two factory service bulletins are relevant to PCM issues on the 2010 Chrysler 300 2.7L. Bulletin #18-021-13 addresses a performance derate that occurs above 55\u202fmph immediately after startup when accelerating at wide open throttle. Bulletin #18-023-10 covers rough idle that can appear on startup when ambient temperatures fall below 50\u202f\u00b0F (10\u202f\u00b0C). These bulletins provide updated firmware and relearn procedures to mitigate the symptoms.<\/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\"><b>18-021-13<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">18-021-13 Flash: Performance Derate Above 55 MPH Immediately After Start-Up When Accelerating A<\/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\"><b>18-023-10<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">18-023-10 Flash: Rough Idle On Start Up With Ambient Temperatures Below 50\u00b0 (10\u00b0 C)<\/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 2010 Chrysler 300<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Keep the charging system clean and ensure the alternator output is within specifications.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect and clean all PCM connector contacts and ground straps regularly.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump\u2011starting the vehicle with a high\u2011voltage surge that could damage the module.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address any trouble codes promptly to prevent escalation of PCM faults.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Maintain proper seal integrity on all electrical connectors to prevent moisture intrusion.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>Can I replace the PCM on my 2010 Chrysler 300 2.7L without a relearn?<\/h3>\n<p>Yes, a VIN\u2011programmed replacement unit from Flagship One eliminates the relearn step, allowing the new PCM to function immediately after installation.<\/p>\n<h3>What should I do if my vehicle stalls after a PCM replacement?<\/h3>\n<p>Check for any remaining codes, ensure the battery is fully charged, and verify that the new module is properly seated and torqued. If stalling persists, re\u2011inspect the wiring harness for loose connections.<\/p>\n<h3>Will the new PCM improve fuel economy on my 2010 Chrysler 300 2.7L?<\/h3>\n<p>A properly programmed module can optimize fuel injection timing, which may slightly improve fuel economy, but the impact will vary based on driving habits and engine wear.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>Replacing the PCM on your 2010 Chrysler 300 2.7L can bring back smooth acceleration and reliable starts. If you prefer a quick fix, a refurbished PCM may be available; however, a new VIN\u2011programmed unit from Flagship One ensures factory\u2011level performance without extra relearn steps.<\/p>\n<figure style=\"margin:22px auto;text-align:center;max-width:720px\"><img decoding=\"async\" style=\"max-width:100%;height:auto;border:1px solid #e2e6ec;border-radius:8px\" src=\"https:\/\/www.fs1inc.com\/media\/wysiwyg\/googleshop\/jeep4plugblack\/jeep-4plugblack-1.jpg\" alt=\"Refurbished VIN-programmed PCM for the 2010 Chrysler 300\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">A refurbished, VIN-programmed replacement PCM for the 2010 Chrysler 300 from Flagship One.<\/figcaption><\/figure>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2010-chrysler-300-2-7l-engine-computer-pcm-ecm-ecu-programmed.html\"><b>refurbished, VIN-programmed PCM for the 2010 Chrysler 300<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/chrysler-pcm-ecm-ecu-engine-computer\/300m-engine-computers.html\">Chrysler 300 module lineup<\/a> covers other engine configurations as well.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Final Thoughts<\/h2>\n<p>A new PCM can restore confidence in your 2010 Chrysler 300 2.7L, ensuring that engine and transmission functions run as intended. Consider a VIN\u2011programmed unit to avoid the relearn hassle and keep your vehicle running reliably.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>If your 2010 Chrysler 300 2.7L stalls or misfires, a PCM fault may be the culprit. Learn how to replace and relearn the module safely to restore reliable performance.<\/p>\n","protected":false},"author":1,"featured_media":521809,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,263],"tags":[441,265,56],"class_list":["post-532820","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-chrysler","tag-441","tag-265","tag-chrysler"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2010 Chrysler 300 2.7L PCM Replacement and Relearn Service 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\/2010-chrysler-300-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2010 Chrysler 300 2.7L PCM Replacement and Relearn Service Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"If your 2010 Chrysler 300 2.7L stalls or misfires, a PCM fault may be the culprit. Learn how to replace and relearn the module safely to restore reliable performance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/2010-chrysler-300-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=\"2026-07-17T20:23:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2010-chrysler-300-pcm-location-card-1.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\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=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2010-chrysler-300-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2010-chrysler-300-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"2010 Chrysler 300 2.7L PCM Replacement and Relearn Service Guide\",\"datePublished\":\"2026-07-17T20:23:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2010-chrysler-300-pcm-replacement-guide\\\/\"},\"wordCount\":1021,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2010-chrysler-300-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/2010-chrysler-300-pcm-location-card-1.webp\",\"keywords\":[\"2010\",\"300\",\"Chrysler\"],\"articleSection\":[\"Car\",\"Chrysler\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2010-chrysler-300-pcm-replacement-guide\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2010-chrysler-300-pcm-replacement-guide\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2010-chrysler-300-pcm-replacement-guide\\\/\",\"name\":\"2010 Chrysler 300 2.7L PCM Replacement and Relearn Service Guide - 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