{"id":527446,"date":"2026-07-16T20:41:18","date_gmt":"2026-07-17T00:41:18","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=527446"},"modified":"2026-07-16T20:41:18","modified_gmt":"2026-07-17T00:41:18","slug":"2014-lexus-is350-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2014-lexus-is350-pcm-replacement-guide\/","title":{"rendered":"2014 Lexus IS350 PCM Replacement"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2014 Lexus IS350 PCM Replacement<\/h1>\n<p class=\"hero-subtitle\">The PCM in the 2014 Lexus IS350 manages engine timing, fuel delivery, and transmission shifts. When it fails, it can trigger misfires, loss of power, or erratic shifting, compromising the vehicle\u2019s reliability.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>PCM controls engine and transmission functions.<\/li>\n<li>Failure often shows as misfires or stalling.<\/li>\n<li>Replacement requires disconnecting battery cable.<\/li>\n<li>New units come VIN\u2011programmed from Flagship One.<\/li>\n<li>Post\u2011install programming is unnecessary.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>You might notice your 2014 Lexus IS350 hesitating or even failing to start after a recent diagnostic. One common culprit is the Powertrain Control Module (PCM). This unit is the vehicle\u2019s brain, coordinating fuel injection, ignition timing, and transmission behavior. Understanding how to replace and program the PCM can help you restore performance without costly delays. By the end of this guide, you\u2019ll know the exact steps to remove the old unit, install a new one, and verify that everything is running correctly. You\u2019ll also learn how to keep the PCM healthy and avoid future problems.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2014 Lexus IS350<\/h2>\n<p>The PCM in the 2014 Lexus IS350 is the central controller that orchestrates engine operation and transmission shifts. It processes data from various sensors\u2014such as crankshaft position, throttle position, and vehicle speed\u2014to calculate optimal fuel mixture and timing. When the PCM malfunctions, the engine may misfire, stall, or run unevenly, and the transmission may shift prematurely or not at all. <a href=\"https:\/\/www.fs1inc.com\/toyota-ecm-pcm-ecu-engine-computer\/lexus-ecm-pcm-ecu-engine-computer\/is350-engine-computers.html\">replacement powertrain control module for the 2014 Lexus IS350<\/a> The module also stores diagnostic trouble codes and communicates with the onboard diagnostic system. A failure often manifests as a \u201cno\u2011start\u201d condition or a persistent \u201cP0606\u201d code, indicating internal PCM communication issues. Replacing the PCM restores the vehicle\u2019s ability to manage engine and transmission operations precisely.<\/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 behind the passenger\u2011side dash, accessible after removing the passenger\u2011side door panel and dash trim. To reach it, the cable from the negative battery terminal must be removed. The labor book times for the procedure are: Powertrain Control Module Relearn 0.5 hours, Powertrain Control Module R&amp;R 0.7 hours, Engine Control Module Reset 0.3 hours, Engine Control Module R&amp;R 0.7 hours, Engine Control Module Relearn 0.5 hours. These times reflect the steps needed to disconnect the battery cable, remove the old PCM, install the new unit, and perform the relearn sequence.<\/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\/2014-lexus-is350-pcm-service-figure.webp\" alt=\"2014 Lexus IS350 PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">From the factory PCM removal procedure for the 2014 Lexus IS350.<\/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 2014 Lexus IS350<\/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> cable from negative battery terminal.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> engine room ecu cover.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> all water on and around the engine room ECU cover.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the 3 bolts and engine room ECU cover.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Raise<\/b> the 2 levers while pushing the locks on the levers, and disconnect the 2 ECM connectors.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the 2 nuts and ECM from the engine room ECU box.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the 2 screws and No.<\/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\">0.7 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\">0.7 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<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After installing the new PCM, the factory procedure normally requires a VIN registration step. Because Flagship One units arrive already VIN\u2011programmed, that step is skipped. The remaining task is to run a relearn sequence, which takes about 0.5 hours for the Powertrain Control Module. This ensures the new unit\u2019s calibration matches the vehicle\u2019s parameters. <a href=\"https:\/\/www.fs1inc.com\/2014-lexus-is350-3-5l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\">VIN\u2011programmed replacement unit<\/a> The relearn routine is performed with the battery cable disconnected to prevent electrical faults during the process.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>When the PCM in a 2014 Lexus IS350 fails, drivers may experience stalling, a loss of power, or erratic shifting. The vehicle may also refuse to start, and a diagnostic scan will often return a code such as <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\">P0606<\/a>, indicating internal PCM communication failure. Misfires and engine hesitation are common, especially under load. If the PCM is compromised, the engine control unit may also report misfire codes, and the transmission may shift too early or too late. 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 2014 Lexus IS350<\/h2>\n<p>The 2014 Lexus IS350\u2019s PCM may report internal communication errors. The most common trouble code is P0606, which signals a problem with the PCM\u2019s internal messaging.<\/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-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>Protecting the PCM in Your 2014 Lexus IS350<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Keep the battery\u2019s charging system clean and maintain proper voltage.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure all PCM connectors are free of corrosion and securely seated.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid exposing the vehicle to high voltage spikes during jump\u2011starts.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Respond quickly to any diagnostic codes to prevent escalation.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Check and replace the battery cable seal to keep moisture out.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Verify that the PCM\u2019s battery cable is properly connected before driving.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>Replacing the PCM in your 2014 Lexus IS350 can be done quickly with a pre\u2011programmed unit, or you may opt for a refurbished module that meets the same specifications. Both choices restore full engine and transmission functionality, and the choice depends on your budget and preference for brand new components.<\/p>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2014-lexus-is350-3-5l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2014 Lexus IS350<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/toyota-ecm-pcm-ecu-engine-computer\/lexus-ecm-pcm-ecu-engine-computer\/is350-engine-computers.html\">Lexus IS350 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 2014 Lexus IS350\u2019s PCM is essential for smooth engine and transmission operation. By following the steps outlined above, you can replace or refurbish the module confidently, ensuring your vehicle runs reliably. Contact a certified technician or Flagship One for assistance today.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>If your 2014 Lexus IS350 stalls or misfires, a PCM issue may be the cause. Follow cautionary steps before disconnecting the battery and replace the unit to restore performance.<\/p>\n","protected":false},"author":1,"featured_media":525802,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,298],"tags":[268,1201,110],"class_list":["post-527446","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-lexus","tag-268","tag-is350","tag-lexus-computer"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2014 Lexus IS350 PCM Replacement - 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\/2014-lexus-is350-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2014 Lexus IS350 PCM Replacement - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"If your 2014 Lexus IS350 stalls or misfires, a PCM issue may be the cause. Follow cautionary steps before disconnecting the battery and replace the unit to restore performance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/2014-lexus-is350-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=\"2026-07-17T00:41:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2014-lexus-is350-pcm-service-figure.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"330\" \/>\n\t<meta property=\"og:image:height\" content=\"210\" \/>\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\\\/2014-lexus-is350-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"2014 Lexus IS350 PCM Replacement\",\"datePublished\":\"2026-07-17T00:41:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/\"},\"wordCount\":962,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/2014-lexus-is350-pcm-service-figure.webp\",\"keywords\":[\"2014\",\"is350\",\"Lexus\"],\"articleSection\":[\"Car\",\"Lexus\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/\",\"name\":\"2014 Lexus IS350 PCM Replacement - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/2014-lexus-is350-pcm-service-figure.webp\",\"datePublished\":\"2026-07-17T00:41:18+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/2014-lexus-is350-pcm-service-figure.webp\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/2014-lexus-is350-pcm-service-figure.webp\",\"width\":330,\"height\":210,\"caption\":\"Figure from the factory control-module removal procedure for the 2014 Lexus IS350\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2014-lexus-is350-pcm-replacement-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"2014 Lexus IS350 PCM Replacement\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"name\":\"Flagship One Blog\",\"description\":\"Flagship One Inc. 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