{"id":531264,"date":"2026-07-17T11:07:04","date_gmt":"2026-07-17T15:07:04","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=531264"},"modified":"2026-07-17T11:07:04","modified_gmt":"2026-07-17T15:07:04","slug":"2019-infiniti-qx60-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2019-infiniti-qx60-pcm-replacement-guide\/","title":{"rendered":"2019 Infiniti QX60 Engine Computer Replacement &#038; Programming Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2019 Infiniti QX60 Engine Computer Replacement &amp; Programming Guide<\/h1>\n<p class=\"hero-subtitle\">The Engine Control Module (ECM) and Powertrain Control Module (PCM) are the central computers that manage engine operation, transmission shifting, fuel delivery, and emissions systems in your Infiniti QX60. These modules fail from voltage spikes, heat damage, water intrusion, or internal component wear.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>The PCM\/ECM controls engine timing, fuel injection, and transmission functions in the 2019 Infiniti QX60<\/li>\n<li>Module failure often stems from electrical stress, extreme temperatures, or connector corrosion<\/li>\n<li>Replacement requires both mechanical R&amp;R and post-install relearn procedures<\/li>\n<li>Factory relearn procedures total specific hours for reset and adaptation processes<\/li>\n<li>Module-internal codes like P0605 indicate internal memory processor faults<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>If your 2019 Infiniti QX60 (3.5L) won&#8217;t start, runs rough, or displays multiple electrical symptoms, the Engine Control Module or Powertrain Control Module may be the culprit. These vehicle computers serve as the brain of your luxury SUV, managing everything from throttle response to transmission shift points. When the module fails, diagnostic scanners may show no communication, multiple unrelated trouble codes, or the vehicle may simply refuse to crank. Understanding what these modules do, where they reside, and what replacement involves helps you make informed decisions about repair options. This guide walks you through the function of the PCM\/ECM in this specific Infiniti model, common failure symptoms, labor procedures, and why programming matters after installation. Whether you are diagnosing a no-start condition or comparing repair quotes, the information here prepares you for the service process.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2019 Infiniti QX60<\/h2>\n<p>The 2019 Infiniti QX60 relies on two primary vehicle computers that work in concert: the Engine Control Module and the Powertrain Control Module. The ECM monitors and controls engine-specific functions such as fuel injection timing, air-fuel mixture, exhaust gas recirculation, and idle speed. The PCM takes a broader role, managing powertrain functions including transmission shift points, torque converter engagement, and communication between the engine and drivetrain. Together, these modules process inputs from dozens of sensors throughout the vehicle and execute output commands to actuators, ensuring optimal performance and fuel efficiency. When shopping for replacement engine computers for the Infiniti QX60, you will encounter both new and refurbished options. The module resides behind interior panels in the cabin, not directly on the engine, which affects access time during replacement. These computers are designed to last the vehicle life, but electrical surges from jump-starts, battery disconnections, or charging system faults can damage internal processors. Water intrusion through HVAC vents, connector corrosion from moisture exposure, and heat-related degradation from nearby exhaust components also contribute to premature failure. A failing module typically sets internal fault codes that cannot be cleared, indicating permanent hardware damage.<\/p>\n<p>Flagship One keeps <a href=\"https:\/\/www.fs1inc.com\/nissan-pcm-ecm-ecu-engine-computer\/infiniti-pcm-ecm-ecu-engine-computer\/qx60-engine-computers.html\">Infiniti QX60 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>Replacing the PCM or ECM in a 2019 Infiniti QX60 requires accessing the module in the passenger compartment, typically located behind the center console or under the driver&#8217;s side dashboard. The replacement process involves removing interior trim panels to reach the unit, disconnecting the electrical harness, removing mounting hardware, and installing the new module in reverse order. Book time for Powertrain Control Module R&amp;R is listed at 2.8 hours, while Engine Control Module R&amp;R also requires 2.8 hours of labor. These times reflect the mechanical removal and installation work only. Technicians must also perform post-install procedures after the new module is secured. The Powertrain Control Module Relearn procedure takes 0.5 hours, and the Engine Control Module Relearn requires an additional 0.5 hours. An Engine Control Module Reset adds 0.3 hours to the procedure. Total combined labor for complete replacement and initialization typically exceeds four hours when accounting for all three post-install procedures. Torque specifications for mounting hardware follow standard Infiniti factory values, and technicians should verify all electrical connections are secure and free of corrosion before reassembly.<\/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\/2019-infiniti-qx60-pcm-service-figure.webp\" alt=\"2019 Infiniti QX60 PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">From the factory PCM removal procedure for the 2019 Infiniti QX60.<\/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 2019 Infiniti QX60<\/h3>\n<ol style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> front air duct.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> battery.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the harness connectors from ECM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> ECM nuts, and then remove ECM.<\/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\">2.8 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\">2.8 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 replacement PCM or ECM in your 2019 Infiniti QX60, the module must be initialized to communicate with the vehicle&#8217;s remaining systems. The factory procedure includes a reset step that clears any default values, followed by separate relearn procedures that allow the new module to adapt to your specific engine and transmission. The Engine Control Module Reset takes 0.3 hours, the Engine Control Module Relearn requires 0.5 hours, and the Powertrain Control Module Relearn adds another 0.5 hours. These procedures teach the new computer to recognize sensor baselines, adapt fuel trims, and establish proper shift points for your transmission. Most shops will install a VIN-programmed replacement unit rather than a blank module to reduce post-install time. Flagship One units arrive pre-programmed with your vehicle&#8217;s specific VIN, which means the relearn procedures may complete faster since the module already recognizes your vehicle identification. However, the relearn procedures themselves are still required to establish sensor adaptations specific to your engine&#8217;s current condition.<\/p>\n<p>Every <a href=\"https:\/\/www.fs1inc.com\/2019-infiniti-qx60-3-5l-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>When the ECM or PCM fails in a 2019 Infiniti QX60, symptoms often appear suddenly and may initially seem unrelated to the computer system. A no-start condition is common, where the engine cranks but receives no fuel or spark due to the computer failing to send activation signals. Stalling after startup occurs when the module loses the ability to maintain idle control or fuel delivery adjustments. Misfire codes such as P0300 through P0306 frequently appear because the computer cannot properly time fuel injection or ignition events. In some cases, the scan tool communication fails entirely, preventing diagnostic access to any module in the vehicle. Transmission shifting may become harsh, delayed, or stuck in a single gear when the PCM loses communication with the transmission control module. The vehicle may also display multiple trouble codes across different systems, reflecting the computer&#8217;s inability to process sensor inputs correctly. An internal memory fault <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0605-internal-control-module-read-only-memory-rom-error\/\">P0605<\/a> specifically indicates that the processor within the control module has detected an internal error, often requiring replacement rather than repair. Other symptoms include illuminated warning lights that cycle unpredictably, erratic gauge readings, and complete electrical system shutdown.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2019 Infiniti QX60<\/h2>\n<p>Module-internal trouble codes indicate problems within the control module hardware itself rather than faults in external sensors or wiring. These codes typically cannot be cleared through normal diagnostic procedures, and their presence often points to a failed PCM or ECM requiring replacement. The following code has been documented 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-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<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 2019 Infiniti QX60<\/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 by replacing the battery at recommended intervals and addressing warning lights promptly<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure ground connections remain clean and tight, checking battery negative terminal and chassis grounds periodically<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump-starting from another vehicle when possible, using a maintainer or trickle charger instead for dead batteries<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address diagnostic trouble codes quickly rather than ignoring them, as early intervention may prevent module damage<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Keep connector seals intact and dry, inspecting for moisture intrusion or corrosion around module connections<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Use OEM or quality aftermarket parts for electrical work to avoid voltage spikes from inferior components<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>Will a used PCM from a salvage yard work in my 2019 Infiniti QX60?<\/h3>\n<p>A used PCM may require programming to match your specific VIN, and there is no history to indicate how much life remains. Flagship One units arrive VIN-programmed and tested, offering known condition with proper documentation.<\/p>\n<h3>Can I drive my QX60 with a failing ECM?<\/h3>\n<p>Driving with a failing computer is not recommended. You may experience stalling, loss of power steering assist, or transmission issues that compromise safety. The vehicle may also become stranded if the module fails completely.<\/p>\n<h3>Why does the replacement module need relearn procedures?<\/h3>\n<p>The relearn procedure allows the new computer to establish baseline readings from your specific sensors and adapt fuel delivery and shift points to your engine&#8217;s current condition. Without this, the vehicle may run poorly.<\/p>\n<h3>Does the QX60 require special tools for ECM programming?<\/h3>\n<p>Aftermarket scan tools may not have the capability to initialize Infiniti modules. Most independent shops use dealer-level diagnostic equipment or capable aftermarket tools to perform the reset and relearn procedures.<\/p>\n<h3>What causes the P0605 code in this vehicle?<\/h3>\n<p>The P0605 code indicates an internal memory or processor fault within the control module. It often results from voltage spikes, component aging, or thermal stress that damages the module&#8217;s internal circuitry.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>When your 2019 Infiniti QX60 requires a new engine computer, you face two primary options: repair the existing module or replace it with a new or refurbished unit. Repair involves specialized board-level diagnostics and may not be cost-effective for older modules. Replacement with a new or professionally refurbished unit typically provides a longer warranty and known reliability. Flagship One specializes in VIN-programmed replacement units that arrive ready for installation, potentially reducing dealer programming fees. Consider your budget, warranty needs, and how long you plan to keep the vehicle when making your decision.<\/p>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2019-infiniti-qx60-3-5l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2019 Infiniti QX60<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/nissan-pcm-ecm-ecu-engine-computer\/infiniti-pcm-ecm-ecu-engine-computer\/qx60-engine-computers.html\">Infiniti QX60 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 Engine Control Module and Powertrain Control Module in your 2019 Infiniti QX60 are essential for vehicle operation, and failure requires prompt attention. Understanding the replacement process, programming needs, and labor involved helps you evaluate repair options intelligently. Whether you choose a new unit or a professionally refurbished replacement, addressing the failure quickly restores your vehicle&#8217;s reliability and performance.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>PCM failure in your 2019 Infiniti QX60 may cause no-start, stalling, or check engine lights. Replacement requires programming. Learn what to expect.<\/p>\n","protected":false},"author":1,"featured_media":525768,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,319],"tags":[790,320,1312],"class_list":["post-531264","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-infiniti","tag-790","tag-infiniti","tag-qx60"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2019 Infiniti QX60 Engine Computer 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\/2019-infiniti-qx60-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2019 Infiniti QX60 Engine Computer Replacement &amp; Programming Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"PCM failure in your 2019 Infiniti QX60 may cause no-start, stalling, or check engine lights. 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Learn what to expect.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/2019-infiniti-qx60-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=\"2026-07-17T15:07:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2019-infiniti-qx60-pcm-service-figure.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1535\" \/>\n\t<meta property=\"og:image:height\" content=\"1087\" \/>\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=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-infiniti-qx60-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-infiniti-qx60-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"2019 Infiniti QX60 Engine Computer Replacement &#038; 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