{"id":527086,"date":"2026-07-16T19:05:31","date_gmt":"2026-07-16T23:05:31","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=527086"},"modified":"2026-07-16T19:05:31","modified_gmt":"2026-07-16T23:05:31","slug":"2019-kia-optima-plug-in-hybrid-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/","title":{"rendered":"2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide<\/h1>\n<p class=\"hero-subtitle\">The powertrain control module serves as the central computer for the 2019 Kia Optima Plug-In Hybrid, overseeing engine timing, transmission operation, and hybrid system coordination. The P0605 code indicates an internal memory fault within the module itself, preventing proper data processing and communication with diagnostic tools. This type of failure disrupts the module&#8217;s ability to store and execute critical operating strategies, potentially triggering limp-home mode or a no-start condition. Prompt diagnosis helps determine whether repair or replacement is the appropriate path forward.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>The documented trouble code for this vehicle is P0605, signaling an internal memory problem within the powertrain control module.<\/li>\n<li>Factory service information places the control module near the air cleaner assembly, where removal and reinstallation labor typically falls between 0.4 and 0.6 hours.<\/li>\n<li>The vehicle&#8217;s VIN must be programmed into any replacement ECM before it can communicate with the vehicle&#8217;s systems.<\/li>\n<li>This model uses separate engine control and powertrain control modules, each requiring distinct replacement and relearn procedures.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>When your 2019 Kia Optima Plug-In Hybrid develops starting problems, stalling, or unexpected check engine lights, the powertrain control module often plays a role. This vehicle relies on sophisticated computer control to manage both its gasoline engine and hybrid components, making the PCM essential for normal operation. Understanding what this module does, where it lives, and what happens when it fails helps you make informed decisions about repair. The P0605 code specifically points to an internal memory fault within the module, a condition that can leave the vehicle in limp-home mode or unable to start. This guide covers the module&#8217;s function, replacement considerations, and your path forward whether you pursue dealer service or an aftermarket solution.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2019 Kia Optima Plug-In Hybrid<\/h2>\n<p>The powertrain control module acts as the primary computer for the 2019 Kia Optima Plug-In Hybrid, managing fuel injection, ignition timing, transmission shifting, and the interaction between the gasoline engine and electric motor. It receives input from dozens of sensors throughout the engine bay and uses that data to make real-time adjustments that keep the vehicle running efficiently. The module also controls the hybrid system&#8217;s energy flows, deciding when to engage electric assist and when to charge the battery pack through regenerative braking. This level of integration means the PCM directly influences your fuel economy, emissions performance, and drivability. Replacement engine computers for the Kia Optima must be compatible with this hybrid architecture and programmed to match the vehicle&#8217;s specifications before they can assume control of the powertrain. When this module fails internally, it loses the ability to store calibration data reliably, causing the P0605 fault and disrupting communication between the module and the rest of the vehicle.<\/p>\n<p>Flagship One keeps <a href=\"https:\/\/www.fs1inc.com\/kia-ecm-pcm-ecu-engine-computer\/optima-plug-in-hybrid-engine-computers.html\">Kia Optima Plug-In Hybrid 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 factory removal procedure accesses the control module next to the air cleaner assembly in the engine compartment. Technicians follow prescribed steps to disconnect electrical connectors, remove mounting fasteners, and extract the old unit without damaging surrounding components. The engine control module replacement requires approximately 0.4 to 0.6 hours of labor for removal and reinstallation, while the powertrain control module follows similar timing at 0.4 to 0.6 hours depending on which unit requires service. After the new module is installed, the relearn procedure typically takes 0.5 hours to complete, allowing the vehicle&#8217;s systems to adapt to the replacement unit. A separate reset procedure may add 0.3 hours if the module requires initialization before accepting programming. Access to the area near the air cleaner housing generally provides adequate working room, though careful connector handling prevents damage during the process.<\/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-kia-optima-plug-in-hybrid-ecm-location-card.webp\" alt=\"2019 Kia Optima Plug-In Hybrid PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">Typical PCM mounting area on the 2019 Kia Optima Plug-In Hybrid (reference).<\/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 Kia Optima Plug-In Hybrid<\/h3>\n<ol style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\"><b>Turn<\/b> ignition switch OFF and disconnect the negative (-) battery terminal.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the battery.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the air cleaner assembly.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the battery tray.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the ECM Connector.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the ECM bracket assembly after loosening the mounting bolt and nuts.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the ECM after loosening the mounting nuts.<\/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\">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\">GAS<\/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 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\">0.4 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 R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">GAS<\/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 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\">0.4 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<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>The factory service procedure requires that when an ECM is replaced, the vehicle identification number must be programmed into the new module before it can function within the vehicle&#8217;s network. This programming step establishes the link between the control module and the specific vehicle, allowing proper communication with the transmission control module, anti-lock brake system, and other networked controllers. Without this step, the new module remains inactive and the vehicle will not operate normally. The procedure typically requires a factory-level scan tool and access to manufacturer software. Units from Flagship One arrive with the VIN already programmed, which means this critical step is completed before the module reaches your shop or garage. Your technician can proceed directly to installation and relearn procedures rather than spending time on initial programming at the vehicle.<\/p>\n<p>Every <a href=\"https:\/\/www.fs1inc.com\/2019-kia-optima-plug-in-hybrid-2-0l-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>Powertrain control module failures typically manifest as starting problems, intermittent stalling, or transmission shifting irregularities that feel disconnected from driver input. The check engine light may illuminate with multiple trouble codes that seem unrelated, including misfire codes, fuel trim codes, and transmission fault codes appearing simultaneously. Some vehicles enter a reduced-power mode designed to allow the driver to reach a service facility safely. In severe cases, the module stops communicating with diagnostic scan tools entirely, preventing code reading and making diagnosis more challenging. The <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0605-internal-control-module-read-only-memory-rom-error\/\">P0605<\/a> code specifically indicates an internal memory fault within the module rather than a sensor or wiring problem, pointing directly to module failure as the cause. Common symptoms include rough idle, hesitation during acceleration, and in some cases, complete failure to start after the module loses its calibration data storage capability.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2019 Kia Optima Plug-In Hybrid<\/h2>\n<p>The P0605 trouble code stored in this vehicle&#8217;s system indicates an internal read-only memory fault within the powertrain control module. Unlike sensor codes that point to external components, this code means the module&#8217;s own processing circuitry has detected an error. The module stores this fault internally and may trigger additional codes as its performance degrades. Code retrieval during diagnosis will show P0605 as the primary or initial fault in many cases of module failure on this model.<\/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 Kia Optima Plug-In Hybrid<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Maintain a healthy charging system with clean battery terminals and proper voltage output to reduce electrical stress on the module.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure solid engine ground connections are free of corrosion and properly torqued to prevent voltage fluctuations.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump-starting the vehicle incorrectly, as voltage spikes can damage sensitive control modules.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address check engine lights and diagnostic codes promptly before underlying electrical issues worsen.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Keep electrical connectors and seals intact during other service work to prevent moisture intrusion into the module circuits.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>Will a used PCM from a junkyard work in my 2019 Kia Optima Plug-In Hybrid?<\/h3>\n<p>A used module requires VIN programming before it can communicate with your vehicle&#8217;s systems, and its condition and history remain unknown. Units from Flagship One arrive pre-programmed and tested for reliability, avoiding the uncertainty of salvage yard parts.<\/p>\n<h3>Can my 2019 Kia Optima Plug-In Hybrid be driven with a failing powertrain control module?<\/h3>\n<p>A failing module may trigger limp-home mode, limiting speed and power to protect the drivetrain. In some cases, the vehicle may not start at all. Continued operation with a faulty module risks leaving you stranded and potentially causing additional drivability issues.<\/p>\n<h3>What&#8217;s the difference between the ECM and PCM on this Kia model?<\/h3>\n<p>The engine control module focuses on gasoline engine functions like fuel delivery and ignition timing, while the powertrain control module coordinates the hybrid system&#8217;s interaction between the engine and electric motor. Both are separate units that must be diagnosed independently.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>Repairing a failed powertrain control module on your 2019 Kia Optima Plug-In Hybrid requires careful evaluation of your options. A remanufactured or new OEM unit from the dealer ensures factory programming but carries a higher price tag. Aftermarket replacement units offer a cost-effective alternative when sourced from a reputable supplier. The pre-programmed units from Flagship One eliminate the initial programming step that adds time and expense to dealer service. Your choice depends on budget, timeline, and your technician&#8217;s recommendation based on the specific failure mode your vehicle experienced.<\/p>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2019-kia-optima-plug-in-hybrid-2-0l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2019 Kia Optima Plug-In Hybrid<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/kia-ecm-pcm-ecu-engine-computer\/optima-plug-in-hybrid-engine-computers.html\">Kia Optima Plug-In Hybrid 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 2019 Kia Optima Plug-In Hybrid depends on its powertrain control module for seamless operation of both gasoline and electric propulsion systems. Understanding the symptoms, location, and programming requirements helps you navigate the repair process with confidence. Whether you choose dealer service or an aftermarket replacement, the information in this guide gives you a solid foundation for the conversation with your technician.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The 2019 Kia Optima Plug-In Hybrid may trigger P0605 when its powertrain control module fails. Learn what this involves and your options for getting the vehicle running again.<\/p>\n","protected":false},"author":1,"featured_media":522162,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,397],"tags":[790,398,1320],"class_list":["post-527086","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-kia","tag-790","tag-kia","tag-optima-plug-in-hybrid"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement 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-kia-optima-plug-in-hybrid-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 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"The 2019 Kia Optima Plug-In Hybrid may trigger P0605 when its powertrain control module fails. Learn what this involves and your options for getting the vehicle running again.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-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=\"2026-07-16T23:05:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\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-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide\",\"datePublished\":\"2026-07-16T23:05:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/\"},\"wordCount\":1604,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp\",\"keywords\":[\"2019\",\"Kia\",\"Optima Plug-In Hybrid\"],\"articleSection\":[\"Car\",\"Kia\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/\",\"name\":\"2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp\",\"datePublished\":\"2026-07-16T23:05:31+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp\",\"width\":1200,\"height\":675,\"caption\":\"Typical ECM mounting area on the 2019 Kia Optima Plug-In Hybrid \u2014 reference card\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"name\":\"Flagship One Blog\",\"description\":\"Flagship One Inc. OEM Engine Computers  Control Modules\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\",\"name\":\"Flagship One, Inc.\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/web-lg-fs1-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/web-lg-fs1-logo.png\",\"width\":1341,\"height\":1098,\"caption\":\"Flagship One, Inc.\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/flagshipone\",\"https:\\\/\\\/x.com\\\/theflagshipone\",\"https:\\\/\\\/www.instagram.com\\\/flagship_one\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UC0oyKphffBM2qkJ-gKPmMXw\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\",\"name\":\"FlagshipOne\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"caption\":\"FlagshipOne\"},\"description\":\"The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules.\",\"sameAs\":[\"https:\\\/\\\/www.fs1inc.com\\\/\",\"https:\\\/\\\/www.facebook.com\\\/flagshipone\\\/\",\"https:\\\/\\\/www.instagram.com\\\/flagship_one\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/fs1inc\"],\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/author\\\/flagship1inc\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide - Flagship One Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/","og_locale":"en_US","og_type":"article","og_title":"2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide - Flagship One Blog","og_description":"The 2019 Kia Optima Plug-In Hybrid may trigger P0605 when its powertrain control module fails. Learn what this involves and your options for getting the vehicle running again.","og_url":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/","og_site_name":"Flagship One Blog","article_publisher":"https:\/\/www.facebook.com\/flagshipone","article_author":"https:\/\/www.facebook.com\/flagshipone\/","article_published_time":"2026-07-16T23:05:31+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp","type":"image\/webp"}],"author":"FlagshipOne","twitter_card":"summary_large_image","twitter_creator":"@theflagshipone","twitter_site":"@theflagshipone","twitter_misc":{"Written by":"FlagshipOne","Est. reading time":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide","datePublished":"2026-07-16T23:05:31+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/"},"wordCount":1604,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp","keywords":["2019","Kia","Optima Plug-In Hybrid"],"articleSection":["Car","Kia"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/","url":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/","name":"2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/#primaryimage"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp","datePublished":"2026-07-16T23:05:31+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/#primaryimage","url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp","contentUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2019-kia-optima-plug-in-hybrid-ecm-location-card.webp","width":1200,"height":675,"caption":"Typical ECM mounting area on the 2019 Kia Optima Plug-In Hybrid \u2014 reference card"},{"@type":"BreadcrumbList","@id":"https:\/\/www.fs1inc.com\/blog\/2019-kia-optima-plug-in-hybrid-pcm-replacement-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"2019 Kia Optima Plug-In Hybrid PCM and ECM Replacement Guide"}]},{"@type":"WebSite","@id":"https:\/\/www.fs1inc.com\/blog\/#website","url":"https:\/\/www.fs1inc.com\/blog\/","name":"Flagship One Blog","description":"Flagship One Inc. OEM Engine Computers  Control Modules","publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.fs1inc.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.fs1inc.com\/blog\/#organization","name":"Flagship One, Inc.","url":"https:\/\/www.fs1inc.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2019\/06\/web-lg-fs1-logo.png","contentUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2019\/06\/web-lg-fs1-logo.png","width":1341,"height":1098,"caption":"Flagship One, Inc."},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/flagshipone","https:\/\/x.com\/theflagshipone","https:\/\/www.instagram.com\/flagship_one","https:\/\/www.youtube.com\/channel\/UC0oyKphffBM2qkJ-gKPmMXw"]},{"@type":"Person","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700","name":"FlagshipOne","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","caption":"FlagshipOne"},"description":"The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules.","sameAs":["https:\/\/www.fs1inc.com\/","https:\/\/www.facebook.com\/flagshipone\/","https:\/\/www.instagram.com\/flagship_one\/","https:\/\/www.linkedin.com\/company\/fs1inc"],"url":"https:\/\/www.fs1inc.com\/blog\/author\/flagship1inc\/"}]}},"_links":{"self":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/527086","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/comments?post=527086"}],"version-history":[{"count":1,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/527086\/revisions"}],"predecessor-version":[{"id":527087,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/527086\/revisions\/527087"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media\/522162"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=527086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=527086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=527086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}