{"id":533696,"date":"2026-07-17T16:58:54","date_gmt":"2026-07-17T20:58:54","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=533696"},"modified":"2026-07-17T16:58:54","modified_gmt":"2026-07-17T20:58:54","slug":"2020-lincoln-navigator-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2020-lincoln-navigator-pcm-replacement-guide\/","title":{"rendered":"2020 Lincoln Navigator PCM Failure: Symptoms, Replacement &#038; Programming Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2020 Lincoln Navigator PCM Failure: Symptoms, Replacement &amp; Programming Guide<\/h1>\n<p class=\"hero-subtitle\">The Powertrain Control Module (PCM) in your 2020 Lincoln Navigator manages engine performance, transmission shifting, and emissions systems. When it fails, you may experience erratic behavior like stalling, poor acceleration, or warning lights due to internal memory faults or communication errors.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>The PCM controls critical engine and transmission functions in the 2020 Lincoln Navigator.<\/li>\n<li>Failure may cause no-start conditions, stalling, or warning lights on the dashboard.<\/li>\n<li>Replacement involves removing the module from the engine bay and installing a pre-programmed unit.<\/li>\n<li>Factory procedures require a relearn process, which is bypassed with a VIN-matched replacement.<\/li>\n<li>Labor times for replacement and relearning are typically under an hour each.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>If your 2020 Lincoln Navigator has been acting unpredictably\u2014stalling at stops, refusing to start, or throwing warning lights\u2014it may be signaling a problem with the Powertrain Control Module (PCM). This small but critical computer oversees everything from fuel delivery to transmission shifting, and when it malfunctions, the effects can range from subtle performance issues to complete vehicle shutdown. Understanding how the PCM functions in your Navigator, what symptoms indicate failure, and what replacement entails can help you make informed decisions. Whether you&#8217;re dealing with a sudden breakdown or intermittent glitches, knowing the labor involved, the importance of proper programming, and how to prevent future issues will save you time and frustration. This guide covers the essentials, from locating the module to recognizing common trouble codes, so you can address the problem efficiently and get back on the road with confidence.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2020 Lincoln Navigator<\/h2>\n<p>The Powertrain Control Module (PCM) in your 2020 Lincoln Navigator serves as the brain of the engine and transmission systems. It continuously monitors data from sensors throughout the vehicle, adjusting fuel injection, ignition timing, and transmission shifts to optimize performance, fuel efficiency, and emissions. Without a functioning PCM, your Navigator may struggle to start, run roughly, or even enter a protective limp mode to prevent further damage. The module is particularly vulnerable to electrical issues, such as voltage spikes or poor grounding, which can corrupt its internal memory or disrupt communication with other control units. When replacement becomes necessary, you\u2019ll need a module that\u2019s compatible with your vehicle\u2019s specific configuration, which is why <a href=\"https:\/\/www.fs1inc.com\/ford-lincoln-mercury\/lincoln-pcm-ecm-ecu-engine-computer\/navigator-engine-computers.html\">replacement engine computers for the Lincoln Navigator<\/a> are designed to match the original unit\u2019s capabilities. A faulty PCM doesn\u2019t just affect drivability\u2014it can also trigger a cascade of warning lights and diagnostic trouble codes, making it essential to address the issue promptly.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>In the 2020 Lincoln Navigator, the PCM is located in the engine bay, typically mounted near the firewall or on the passenger side of the vehicle. Accessing it requires removing the engine cover and possibly disconnecting nearby components like the air intake or battery terminals to reach the module\u2019s mounting bolts. The replacement process involves unplugging the electrical connectors, removing the old unit, and securing the new one in place with the same torque specifications to ensure a proper seal against moisture and debris. According to factory labor estimates, removing and replacing the PCM takes approximately 0.6 hours, while additional time may be needed for relearning procedures if the module isn\u2019t pre-programmed. The location is designed for relative ease of access, but care must be taken to avoid damaging connectors or introducing contaminants during the swap.<\/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\">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<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\">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<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After replacing the PCM in your 2020 Lincoln Navigator, the factory procedure requires a relearn process to synchronize the new module with the vehicle\u2019s existing systems. This typically involves using a scan tool to perform a powertrain control module relearn, which can take around 0.5 hours of labor. However, if you install <a href=\"https:\/\/www.fs1inc.com\/2020-lincoln-navigator-3-5l-pcm-engine-computer-ecm-ecu-programmed-updated.html\">a VIN-programmed replacement unit<\/a>, these steps are already completed at the supplier level, eliminating the need for additional dealer programming. This not only saves time but also reduces the risk of errors during the relearn process, which can sometimes lead to further drivability issues. The pre-programmed unit arrives ready to plug in and drive, ensuring that all engine and transmission parameters are correctly configured for your specific Navigator from the moment of installation.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>A failing PCM in your 2020 Lincoln Navigator can manifest in several ways, often starting with subtle symptoms before escalating to more serious issues. You may notice the engine stalling unexpectedly, especially at idle or during deceleration, or the vehicle may hesitate or jerk during acceleration. Warning lights on the dashboard, such as the check engine light or transmission warning, are common indicators of PCM-related faults. In some cases, the Navigator may enter a limp mode, limiting engine power to prevent further damage. Another telltale sign is difficulty starting the vehicle, where the engine cranks but fails to fire, or it may start and immediately die. Communication errors between the PCM and other modules can also trigger codes like <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\">internal control module memory checksum error<\/a>, which often points to corrupted data within the module itself. If your scan tool fails to communicate with the PCM at all, it could indicate a complete module failure. Transmission shifting issues, such as delayed or harsh gear changes, may also stem from PCM problems, as the module plays a key role in managing shift points and torque converter lockup. Addressing these symptoms early can prevent more extensive damage to the vehicle\u2019s drivetrain or emissions systems.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2020 Lincoln Navigator<\/h2>\n<p>The 2020 Lincoln Navigator may set specific trouble codes when the PCM experiences internal faults or communication issues. These codes help pinpoint the source of the problem, whether it\u2019s a memory error, a lost connection with another module, or a voltage-related failure. Below are the documented module-internal trouble codes for this vehicle.<\/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-p0605-internal-control-module-read-only-memory-rom-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0605<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0605-internal-control-module-read-only-memory-rom-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal ROM error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0605-internal-control-module-read-only-memory-rom-error\/\" style=\"color:#0563C1\"><b><u>Full P0605 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>P1602<\/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\"><b>P1622<\/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\"><b>P1623<\/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\"><b>P164E<\/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\"><b>P166B<\/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-u0100-lost-communication-ecmpcm\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>U0100<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module-internal fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/\" style=\"color:#0563C1\"><b><u>Full U0100 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-u0102-lost-communication-transfer-case-control-module\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>U0102<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0102-lost-communication-transfer-case-control-module\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module-internal fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0102-lost-communication-transfer-case-control-module\/\" style=\"color:#0563C1\"><b><u>Full U0102 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-u0121-lost-communication-anti-lock-brake-system-abs-control-module\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>U0121<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0121-lost-communication-anti-lock-brake-system-abs-control-module\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module-internal fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0121-lost-communication-anti-lock-brake-system-abs-control-module\/\" style=\"color:#0563C1\"><b><u>Full U0121 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 Lincoln Navigator<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Keep your Navigator\u2019s battery and charging system in good condition to avoid voltage spikes that can damage the PCM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure all electrical connectors, especially those near the PCM, are clean and securely fastened to prevent corrosion or poor contact.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump-starting the vehicle with improper voltage, as this can overload the PCM and other sensitive electronics.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address any warning lights or trouble codes promptly to prevent minor issues from escalating into module failure.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect the PCM\u2019s mounting area for signs of moisture or debris, and ensure the connector seals are intact to protect against water intrusion.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Use a quality scan tool to clear codes only after repairs are completed, rather than repeatedly resetting them without addressing the root cause.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>Why does my 2020 Lincoln Navigator keep stalling after replacing the battery?<\/h3>\n<p>A weak or improperly charged battery can cause voltage fluctuations that disrupt the PCM\u2019s operation, leading to stalling. If the battery was recently replaced, the PCM may need a relearn procedure to recalibrate its parameters. A VIN-programmed replacement unit can help avoid this issue by arriving pre-configured for your vehicle.<\/p>\n<h3>Can a bad PCM cause my Navigator to shift roughly or delay gear changes?<\/h3>\n<p>Yes, the PCM controls transmission shift points and torque converter lockup, so a failing module may cause delayed, harsh, or erratic shifting. If you notice these symptoms alongside warning lights, the PCM should be scanned for trouble codes to confirm the issue.<\/p>\n<h3>How do I know if my Navigator\u2019s PCM is completely dead or just needs reprogramming?<\/h3>\n<p>If your scan tool cannot communicate with the PCM at all, it may indicate a complete failure. However, if the module responds but sets codes like P0601 or P1622, it could be a software issue that reprogramming might resolve. A VIN-matched replacement unit eliminates the guesswork by arriving ready to install.<\/p>\n<h3>Is it safe to drive my 2020 Lincoln Navigator with a PCM-related trouble code like P0606?<\/h3>\n<p>While the vehicle may still run, driving with an active PCM code like P0606 (processor fault) can lead to unpredictable behavior, such as stalling or reduced power. It\u2019s best to address the issue promptly to avoid further damage or a breakdown.<\/p>\n<h3>What\u2019s the difference between an ECM and a PCM in my Navigator?<\/h3>\n<p>In the 2020 Lincoln Navigator, the terms are often used interchangeably, but the PCM (Powertrain Control Module) typically refers to the combined engine and transmission control unit. The ECM (Engine Control Module) may refer specifically to the engine management portion, but the Navigator uses a single module for both functions.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>When your 2020 Lincoln Navigator\u2019s PCM fails, you have two main options: repair the existing unit or replace it with a refurbished module. Repairing may involve reprogramming or soldering internal components, but it can be time-consuming and may not address underlying issues. A refurbished replacement unit, particularly one that\u2019s VIN-programmed, offers a faster and more reliable solution, ensuring your vehicle\u2019s systems are properly calibrated from the start. Given the labor involved in relearning procedures, choosing a pre-programmed unit can save you both time and potential headaches.<\/p>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2020-lincoln-navigator-3-5l-pcm-engine-computer-ecm-ecu-programmed-updated.html\"><b>refurbished, VIN-programmed PCM for the 2020 Lincoln Navigator<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/ford-lincoln-mercury\/lincoln-pcm-ecm-ecu-engine-computer\/navigator-engine-computers.html\">Lincoln Navigator 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 PCM in your 2020 Lincoln Navigator plays a critical role in keeping your vehicle running smoothly, and addressing issues promptly can prevent more serious problems down the road. Whether you\u2019re dealing with stalling, warning lights, or communication errors, understanding the symptoms, replacement process, and programming requirements will help you make the best decision for your situation. With the right approach, you can restore your Navigator\u2019s performance and reliability, ensuring it remains a dependable vehicle for years to come.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>2020 Lincoln Navigator stalling, no-start, or warning lights may signal PCM failure. Learn symptoms, labor times, and why a VIN-programmed replacement unit can save hours of dealer reprogramming.<\/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":[258,493],"tags":[676,494,565],"class_list":["post-533696","post","type-post","status-publish","format-standard","hentry","category-car","category-lincoln","tag-676","tag-lincoln","tag-navigator"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2020 Lincoln Navigator PCM Failure: Symptoms, 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-lincoln-navigator-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 Lincoln Navigator PCM Failure: Symptoms, Replacement &amp; Programming Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"2020 Lincoln Navigator stalling, no-start, or warning lights may signal PCM failure. 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