{"id":533421,"date":"2026-07-17T16:47:44","date_gmt":"2026-07-17T20:47:44","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=533421"},"modified":"2026-07-17T16:47:44","modified_gmt":"2026-07-17T20:47:44","slug":"2020-dodge-charger-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2020-dodge-charger-pcm-replacement-guide\/","title":{"rendered":"2020 Dodge Charger PCM and ECM Relearn Procedures"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2020 Dodge Charger PCM and ECM Relearn Procedures<\/h1>\n<p class=\"hero-subtitle\">In the 2020 Dodge Charger the Powertrain Control Module and Engine Control Module manage engine timing, fuel delivery, and transmission coordination. Failure of either unit may disrupt powertrain operation, trigger diagnostic codes, and prevent the vehicle from starting or running smoothly.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>Relearn tasks for PCM and ECM each require about half an hour of labor.<\/li>\n<li>Both modules share similar reset times, ranging from three to six tenths of an hour.<\/li>\n<li>A new PCM must be programmed with the original VIN and mileage before installation.<\/li>\n<li>The factory\u2011specified code P0601 indicates internal processor timing problems.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>When a 2020 Dodge Charger exhibits powertrain glitches, the PCM or ECM may need replacement or a software reset. Understanding how these modules function and what post\u2011install steps are required helps you evaluate repair options. This guide explains the role of each computer, where it resides, the labor involved, and the programming considerations that keep your vehicle reliable.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2020 Dodge Charger<\/h2>\n<p>The Powertrain Control Module in the 2020 Dodge Charger interprets sensor data to control fuel injection, ignition timing, and transmission shift strategy. It works closely with the Engine Control Module, which focuses on engine\u2011specific parameters such as idle speed and emissions control. Together they ensure the engine runs efficiently and meets emissions standards. Proper operation is essential for smooth acceleration and fuel economy. The module replacement process often involves <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/dodge-pcm-ecm-ecu-engine-computer\/charger-engine-computers.html\">2020 Dodge Charger PCM<\/a> that must match the vehicle&#8217;s specifications.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>The PCM and ECM are mounted within the engine compartment, typically attached to the firewall or near the intake manifold. Access requires removal of a few fasteners and disconnecting the electrical connector. Labor times from the service guide list a Powertrain Control Module Relearn at 0.5 hours and a replacement and reinstall at 0.6 hours. The Engine Control Module Relearn is also 0.5 hours, with a reset taking 0.3 hours and a replacement at 0.6 hours. These times reflect the steps needed to remove the unit, install a new one, and reconnect the harness.<\/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\/2020-dodge-charger-pcm-service-figure.webp\" alt=\"2020 Dodge Charger PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">From the factory PCM removal procedure for the 2020 Dodge Charger.<\/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 2020 Dodge Charger<\/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 negative battery cable.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the hood ajar switch.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the Powertrain Control Module (PCM) fastener.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the PCM wire harness connectors.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the PCM from the vehicle.<\/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 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\">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\">0.6 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 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 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\">0.6 hr<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After installing a new PCM or ECM in the 2020 Dodge Charger, the factory procedure calls for programming the unit with the original VIN and mileage before any relearn steps. Flagship One supplies <a href=\"https:\/\/www.fs1inc.com\/2020-dodge-charger-3-6l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\">a VIN-programmed replacement unit<\/a> that arrives already configured, so the VIN and mileage entry is completed before the vehicle reaches the shop, eliminating that portion of the process.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>Typical signs of a faulty PCM or ECM in this model include a failure to start, intermittent stalling, rough idle, or unexpected transmission shifts. Diagnostic scans often reveal <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\">processor timing error<\/a> which points to internal timing issues within the module. You may also notice loss of communication with scan tools or a persistent check engine light.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2020 Dodge Charger<\/h2>\n<p>The following internal diagnostic code is commonly associated with the powertrain computers in the 2020 Dodge Charger:<\/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<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 2020 Dodge Charger<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Maintain the charging system to ensure stable voltage supply.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect and clean all ground connections and connector pins regularly.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid high\u2011voltage spikes from jump\u2011starting or improper battery handling.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address any stored trouble codes promptly to prevent module stress.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Keep connector seals intact to protect against moisture intrusion.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>What relearn steps are needed after replacing the PCM in a 2020 Dodge Charger?<\/h3>\n<p>The vehicle typically requires a Powertrain Control Module Relearn, which takes about half an hour of labor. Using a VIN\u2011programmed unit can simplify the process.<\/p>\n<h3>Can a faulty ECM cause transmission shift problems in the 2020 Dodge Charger?<\/h3>\n<p>Yes, because the ECM shares data with the PCM for shift timing, a malfunction can result in harsh or delayed shifts.<\/p>\n<h3>Is the P0601 code specific to the PCM or can it appear from other issues?<\/h3>\n<p>P0601 generally indicates an internal processor timing fault in the PCM, though poor power quality can also trigger the code.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>When the PCM or ECM in your 2020 Dodge Charger needs attention, you can choose a new factory\u2011programmed unit or a refurbished replacement that meets OEM specifications. Both options require the standard relearn procedures, but a VIN\u2011programmed replacement may reduce shop time and simplify verification.<\/p>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2020-dodge-charger-3-6l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2020 Dodge Charger<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/dodge-pcm-ecm-ecu-engine-computer\/charger-engine-computers.html\">Dodge Charger module lineup<\/a> covers other engine configurations as well.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Final Thoughts<\/h2>\n<p>For owners of a 2020 Dodge Charger, addressing PCM or ECM concerns with proper relearn steps helps restore reliable performance. Consider a replacement that aligns with factory requirements and enjoy continued confidence behind the wheel.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>If your 2020 Dodge Charger shows no\u2011start or stalling, beware of PCM\/ECM issues. Proper relearn steps can restore performance and avoid further trouble.<\/p>\n","protected":false},"author":1,"featured_media":525571,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,38],"tags":[676,155,37],"class_list":["post-533421","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-dodge","tag-676","tag-charger","tag-dodge"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2020 Dodge Charger PCM and ECM Relearn Procedures - 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\/2020-dodge-charger-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2020 Dodge Charger PCM and ECM Relearn Procedures - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"If your 2020 Dodge Charger shows no\u2011start or stalling, beware of PCM\/ECM issues. 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