{"id":530508,"date":"2026-07-17T09:54:00","date_gmt":"2026-07-17T13:54:00","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=530508"},"modified":"2026-07-17T09:54:00","modified_gmt":"2026-07-17T13:54:00","slug":"2020-gmc-yukon-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2020-gmc-yukon-pcm-replacement-guide\/","title":{"rendered":"2020 GMC Yukon PCM\/ECM: Replacement &#038; Programming Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2020 GMC Yukon PCM\/ECM: Replacement &amp; Programming Guide<\/h1>\n<p class=\"hero-subtitle\">The Powertrain Control Module (PCM) and Engine Control Module (ECM) in your 2020 GMC Yukon 5.3L manage fuel delivery, ignition timing, emissions control, and transmission shifting functions. When internal memory circuits fail, the module can no longer process sensor data correctly, leading to drivability problems. Trouble codes P0601 through P060F indicate internal module faults that require replacement.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>The PCM\/ECM controls engine and transmission functions on the 5.3L V8 in this Yukon<\/li>\n<li>Internal fault codes P0601-P060F indicate module memory failure<\/li>\n<li>Factory replacement requires SPS programming procedure<\/li>\n<li>Book time for module R&amp;R is 0.6 hours, with additional relearn time<\/li>\n<li>Flagship One replacement units arrive VIN-programmed to skip dealer programming<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>When your 2020 GMC Yukon 5.3L experiences starting or running problems that conventional repairs cannot resolve, the Powertrain Control Module often bears responsibility. This integrated computer manages critical engine and transmission operations, and when its internal memory or processor circuitry fails, symptoms range from inconvenient to disabling. This guide explains how PCM\/ECM failure manifests, what replacement involves, and whether a new or refurbished unit better suits your needs. You&#8217;ll learn to recognize failure symptoms, understand factory service procedures, and decide between dealer programming or a pre-programmed aftermarket solution. Whether you&#8217;re diagnosing a current problem or planning ahead, this information helps you approach the repair with confidence.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2020 GMC Yukon<\/h2>\n<p>The PCM on your 2020 GMC Yukon serves as the central nervous system for the 5.3L V8 engine and its automatic transmission. This integrated computer processes inputs from dozens of sensors\u2014including mass airflow, coolant temperature, throttle position, and oxygen sensors\u2014to calculate optimal fuel delivery and ignition timing in real time. The ECM portion also monitors emissions control systems, ensuring your Yukon meets federal standards while maintaining performance. Because the module constantly adjusts engine operation based on changing conditions, any internal fault in its processor or memory renders these calculations unreliable. When replacement engine computers for the Yukon become necessary due to internal failure, the entire unit must be swapped rather than repaired.<\/p>\n<p>Flagship One keeps <a href=\"https:\/\/www.fs1inc.com\/gm-general-motors\/gmc-pcm-ecm-ecu-engine-computer\/yukon-engine-computers.html\">GMC Yukon replacement engine computers<\/a> in stock for exactly this failure pattern.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>The ECM on the 2020 GMC Yukon 5.3L is located on the driver&#8217;s side of the engine compartment, mounted to the bulkhead or firewall area. Access typically requires removing the engine cover and potentially the air intake ducting to reach the unit. The book time for ECM R&amp;R is 0.6 hours according to factory labor guidelines. After the physical replacement, additional procedures are required: powertrain control module relearn at 0.5 hours, engine control module relearn at 0.5 hours, and engine control module reset at 0.3 hours. These times reflect separate procedures that may be performed together or sequentially depending on the specific repair protocol followed.<\/p>\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 GMC Yukon<\/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> the negative battery cable.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> any debris from around the control module connector.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the electrical connectors.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Release<\/b> the retaining tabs.<\/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\">0.6 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 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 replacing the ECM on your Yukon, the factory procedure requires accessing GM&#8217;s Service Programming System (SPS) and following the on-screen instructions to program the new module. This process aligns the replacement unit with your specific vehicle&#8217;s VIN, options, and calibration files. The programming step is mandatory for proper operation\u2014without it, the engine may not run correctly or at all. However, when you purchase from Flagship One, a VIN-programmed replacement unit arrives ready to install, skipping this dealer-only step entirely and saving you the programming fee and wait time.<\/p>\n<p>Every <a href=\"https:\/\/www.fs1inc.com\/2020-gmc-yukon-5-3l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\">VIN-programmed replacement unit<\/a> from Flagship One arrives with these steps already completed.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>PCM\/ECM failure on the 2020 GMC Yukon 5.3L typically manifests as no-start conditions, intermittent stalling, or rough idle that worsens over time. The check engine light usually illuminates, and diagnostic scan tools may show poor or no communication with the module. Transmission symptoms such as harsh shifting, failure to engage gears, or stuck in limp mode can also stem from ECM problems. In many cases, the module sets internal fault codes related to its own memory integrity. One common pattern involves internal memory checksum errors, where the module detects corrupted data storage and sets code <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\">P0601<\/a>, often leaving the vehicle unable to start or run properly.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2020 GMC Yukon<\/h2>\n<p>The 2020 GMC Yukon 5.3L documents specific module-internal trouble codes that indicate internal ECM\/PCM failure rather than external sensor issues. These codes\u2014ranging from P0601 through P060F\u2014signal problems with the module&#8217;s internal memory, processor, or calibration storage. When these codes appear alongside drivability symptoms, they typically point to a failed module requiring replacement rather than sensor or wiring repairs.<\/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-p0602-control-module-programming-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0602<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0602-control-module-programming-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Control module programming error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0602-control-module-programming-error\/\" style=\"color:#0563C1\"><b><u>Full P0602 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-p0603-internal-control-module-keep-alive-memory-kam-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0603<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0603-internal-control-module-keep-alive-memory-kam-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Keep-alive memory (KAM) error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0603-internal-control-module-keep-alive-memory-kam-error\/\" style=\"color:#0563C1\"><b><u>Full P0603 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-p0604-internal-control-module-random-access-memory-ram-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0604<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0604-internal-control-module-random-access-memory-ram-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal RAM error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0604-internal-control-module-random-access-memory-ram-error\/\" style=\"color:#0563C1\"><b><u>Full P0604 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<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0607-control-module-performance\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0607<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0607-control-module-performance\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module performance fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0607-control-module-performance\/\" style=\"color:#0563C1\"><b><u>Full P0607 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><b>P060A<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Module-internal fault<\/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\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p062f-internal-control-module-eeprom-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P062F<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p062f-internal-control-module-eeprom-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal EEPROM error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p062f-internal-control-module-eeprom-error\/\" style=\"color:#0563C1\"><b><u>Full P062F 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>Several GM service bulletins address control module programming and calibration identification. Bulletin #20-NA-090 provides guidance on detecting non-GM ECM calibrations in diesel engines using GDS 2 diagnostic software. Bulletin #06-08-47-001O covers warranty administration procedures for SPS control module reprogramming, ensuring technicians follow proper protocol. Bulletin #09-06-04-026 addresses identifying aftermarket engine calibrations in gasoline engines using Tech 2 or GDS 2, helping service writers recognize when non-OEM programming may affect vehicle operation. These bulletins ensure proper documentation and coverage for module-related repairs.<\/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\">Bulletins &gt; Engine\/Propulsion &gt; #20-NA-090: Identifying Non-GM ECM Calibration Use and Power-up<\/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>06-08-47-001<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Bulletins &gt; Power and Signal Distribution &gt; #06-08-47-001O: Warranty Administration &#8211; Warranty <\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">\u201d field on the job card. Dealers must also enter one of the codes in the<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><b>09-06-04-026<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Bulletins &gt; Engine\/Propulsion &gt; #09-06-04-026V: Identifying Non-GM (Aftermarket) Engine Calibra<\/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 2020 GMC Yukon<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Maintain healthy charging system voltage\u2014alternator issues can stress the ECM over time<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Keep battery terminals and ground connections clean and tight to prevent voltage spikes<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump-starting from another vehicle unless absolutely necessary, which can send voltage surges<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address diagnostic trouble codes promptly before internal module damage progresses<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect engine compartment connector seals periodically and replace any that are cracked or missing<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Use quality fuel and keep the fuel system clean to reduce engine stress that can affect module operation<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>Can I replace the ECM myself on my 2020 GMC Yukon?<\/h3>\n<p>Mechanical removal and installation is straightforward for those with basic automotive skills, but programming requires access to GM&#8217;s SPS system. Most DIYers will need dealer or third-party programming services after installing a replacement unit.<\/p>\n<h3>Will a used ECM from a salvage yard work in my Yukon?<\/h3>\n<p>A used ECM from the same model year and identically equipped vehicle may function, but it carries unknown mileage and prior fault history. You would still need to have it reprogrammed to your specific VIN, adding cost and complexity to the repair.<\/p>\n<h3>What&#8217;s the difference between PCM and ECM on this Yukon?<\/h3>\n<p>The 5.3L Yukon uses an integrated PCM that combines engine and transmission control functions. The ECM handles engine-specific tasks while the PCM manages the entire powertrain as a single unit.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>When your 2020 GMC Yukon needs a replacement computer, you choose between new GM parts at dealer pricing plus programming fees, or a quality refurbished unit from Flagship One that arrives pre-programmed with your VIN. Pre-programmed options save time and avoid dealer markup. Consider your budget, urgency, and preference for OEM versus refurbished parts. Either path, properly installed and programmed, restores your Yukon&#8217;s reliable operation.<\/p>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2020-gmc-yukon-5-3l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2020 GMC Yukon<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/gm-general-motors\/gmc-pcm-ecm-ecu-engine-computer\/yukon-engine-computers.html\">GMC Yukon 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 2020 GMC Yukon 5.3L depends on its PCM\/ECM for reliable operation across all driving conditions. Failure need not mean the end\u2014replacement with a properly programmed unit restores full function. Whether you select new from the dealer or pre-programmed from Flagship One, addressing the issue promptly keeps you on the road. Choose the option that fits your situation best.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>2020 GMC Yukon 5.3L no-start or stalling issues often trace to PCM\/ECM failure. Internal fault codes P0601-P060F signal module problems. Replacement with programming restores operation.<\/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":[258,270],"tags":[676,68,657],"class_list":["post-530508","post","type-post","status-publish","format-standard","hentry","category-car","category-gmc","tag-676","tag-gmc","tag-yukon"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2020 GMC Yukon PCM\/ECM: Replacement &amp; Programming 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\/2020-gmc-yukon-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 GMC Yukon PCM\/ECM: Replacement &amp; Programming Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"2020 GMC Yukon 5.3L no-start or stalling issues often trace to PCM\/ECM failure. Internal fault codes P0601-P060F signal module problems. 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