{"id":532745,"date":"2026-07-17T16:20:30","date_gmt":"2026-07-17T20:20:30","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=532745"},"modified":"2026-07-17T16:20:30","modified_gmt":"2026-07-17T20:20:30","slug":"2004-chrysler-concorde-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2004-chrysler-concorde-pcm-replacement-guide\/","title":{"rendered":"2004 Chrysler Concorde 2.7L PCM &#038; ECM Replacement Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2004 Chrysler Concorde 2.7L PCM &amp; ECM Replacement Guide<\/h1>\n<p class=\"hero-subtitle\">The Powertrain Control Module (PCM) in the 2004 Chrysler Concorde 2.7L is the main computer managing engine and transmission. Failure may cause no-start, stalling, or transmission issues, often triggering codes P0600 or P0601.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>The PCM controls fuel, ignition, and transmission functions on the 2004 Concorde 2.7L.<\/li>\n<li>Book labor for PCM removal and replacement is 0.4 hours.<\/li>\n<li>Factory programming requires a DRBIII scan tool to set VIN and mileage.<\/li>\n<li>Flagship One units arrive pre-programmed, eliminating the relearn step.<\/li>\n<li>Common failure symptoms include no-start, stalling, and check engine light with internal codes.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>If your 2004 Chrysler Concorde with the 2.7L engine is experiencing intermittent stalling, a no-start condition, or erratic transmission shifting, the Powertrain Control Module (PCM) may be the culprit. The PCM is the vehicle&#8217;s primary engine computer, responsible for managing fuel delivery, ignition timing, idle speed, and shift points. When it begins to fail, the symptoms can mimic other issues like a bad sensor or fuel pump, making diagnosis tricky. This guide will help you understand what the PCM does in your Concorde, where it is located, how replacement is performed, and what the factory programming procedure entails. You will also learn about common failure symptoms and the internal trouble codes that may appear. By the end, you will have a clear picture of whether a PCM replacement is the right fix and how a pre-programmed unit from Flagship One can simplify the repair.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2004 Chrysler Concorde<\/h2>\n<p>The Powertrain Control Module (PCM) in the 2004 Chrysler Concorde 2.7L is the central computer that integrates engine and transmission control. It receives input from sensors such as the crankshaft position sensor, throttle position sensor, and oxygen sensors, then adjusts fuel injector pulse width, ignition coil timing, and transmission shift solenoids accordingly. The PCM also monitors system health and stores diagnostic trouble codes when it detects a fault. In the Concorde, the PCM is particularly important because the 2.7L engine relies on precise electronic control for smooth operation. A failing PCM may cause the engine to run poorly, fail to start, or shift erratically. When replacement becomes necessary, you have options: a new OEM unit that requires dealer programming, or a refurbished unit that arrives ready to install. For many owners, choosing from <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/chrysler-pcm-ecm-ecu-engine-computer\/concorde-engine-computers.html\">replacement engine computers for the Concorde<\/a> can save time and money, especially when the unit comes pre-programmed with the correct VIN and mileage.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>The PCM on the 2004 Chrysler Concorde 2.7L is typically located in the engine compartment, mounted on the driver-side strut tower or near the battery. Access is straightforward: disconnect the negative battery cable, unbolt the module, and release the electrical connectors. The factory book time for Powertrain Control Module removal and replacement on the Concorde is 0.4 hours. This time does not include the additional 0.5 hours for the Engine Control Module relearn procedure that the factory requires after installation. During replacement, take care to avoid damaging the connector pins or the module housing. Once the new PCM is bolted in place and connectors are secured, you will need to perform the programming steps before the engine will start.<\/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\/2004-chrysler-concorde-pcm-service-figure.webp\" alt=\"2004 Chrysler Concorde PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">From the factory PCM removal procedure for the 2004 Chrysler Concorde.<\/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 2004 Chrysler Concorde<\/h3>\n<ol style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\"><b>Unbolt<\/b> the washer bottle filler neck and reposition.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the 4 PCM electrical connector.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the 3 fasteners from PCM mounting ().<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> PCM ().<\/li>\n<\/ol>\n<p style='margin:10px 0 0 0'><em>Work with the ignition off, and treat the module as static-sensitive: avoid touching the connector pins at any point.<\/em><\/p>\n<\/div>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Operation<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Configuration<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Book Time<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">300M<\/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 R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Concorde<\/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\">300M<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.5 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module Relearn<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Concorde<\/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\">300M<\/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 R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Concorde<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.4 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 new PCM in the 2004 Chrysler Concorde 2.7L, the factory procedure requires using a DRBIII scan tool to reprogram the module with the vehicle&#8217;s original identification number (VIN) and the original mileage. This step is critical because the PCM will not communicate with the immobilizer or other modules without the correct VIN. Additionally, you must reconnect the negative battery cable and then reprogram the radio and clock, as these settings are lost when power is disconnected. Flagship One eliminates this complexity by providing <a href=\"https:\/\/www.fs1inc.com\/2004-chrysler-concorde-2-7l-engine-computer-pcm-ecm-ecu-programmed.html\">a VIN-programmed replacement unit<\/a> that arrives with the correct VIN and mileage already loaded. This means you can install the module, reconnect the battery, and start the engine without needing a dealer visit or a DRBIII tool. The radio and clock will still need to be reset, but the core programming is done.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>A failing PCM in the 2004 Chrysler Concorde 2.7L often presents with a variety of drivability complaints. The engine may crank but not start, or it may start and then stall shortly after. You might notice intermittent misfires, rough idle, or hesitation during acceleration. Transmission shifting can become erratic, with harsh or delayed shifts, or the transmission may fail to shift altogether. The check engine light will likely illuminate, and a scan tool may retrieve internal module codes such as P0600 or P0601. A common symptom is a <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\">internal PCM processor fault<\/a> that indicates the module&#8217;s internal processor has failed or lost communication. Other signs include the cooling fan running constantly, the fuel pump not priming, or the scan tool being unable to communicate with the PCM. If you experience any of these issues, especially in combination, the PCM should be a prime suspect.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2004 Chrysler Concorde<\/h2>\n<p>The 2004 Chrysler Concorde 2.7L may store module-internal diagnostic trouble codes that point to PCM hardware or software failures. The following codes are 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-p0600-serial-communication-link\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0600<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0600-serial-communication-link\/\" 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-p0600-serial-communication-link\/\" style=\"color:#0563C1\"><b><u>Full P0600 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-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<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 2004 Chrysler Concorde<\/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 and charging system in good condition; low or fluctuating voltage can damage the PCM over time.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect and clean all ground connections, especially the PCM ground, to ensure a solid electrical path.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump-starting the vehicle with a running donor car; voltage spikes from a running alternator can harm the module.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address any diagnostic trouble codes promptly; ignoring a code like P0601 may lead to complete PCM failure.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure the PCM connector seals are intact and free of corrosion or moisture intrusion.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Use only a quality battery with the correct cold cranking amps to prevent under-voltage stress on the module.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>What does code P0601 mean on my 2004 Chrysler Concorde 2.7L?<\/h3>\n<p>Code P0601 indicates an internal PCM processor fault. This typically means the module&#8217;s internal memory or processor has failed, and the PCM will need to be replaced. It is not a sensor or wiring issue.<\/p>\n<h3>Can I drive my 2004 Concorde with a failing PCM?<\/h3>\n<p>Driving with a failing PCM is not recommended. The vehicle may stall unexpectedly, shift erratically, or fail to start. Continuing to drive could also cause damage to other components like the catalytic converter due to improper fuel mixture.<\/p>\n<h3>How long does it take to replace the PCM on a 2004 Chrysler Concorde?<\/h3>\n<p>The book labor time for PCM removal and replacement is 0.4 hours. An additional 0.5 hours is allowed for the factory relearn procedure if you are using a blank module. With a pre-programmed unit, the relearn is not needed.<\/p>\n<h3>Do I need a DRBIII scan tool to program a new PCM for my Concorde?<\/h3>\n<p>Yes, the factory procedure requires a DRBIII scan tool to program the new PCM with the vehicle&#8217;s VIN and mileage. However, if you purchase a pre-programmed unit from Flagship One, that step is already completed.<\/p>\n<h3>Will replacing the PCM fix my transmission shifting problems on the 2004 Concorde?<\/h3>\n<p>If the transmission shifting issues are caused by a faulty PCM that is sending incorrect signals to the transmission solenoids, then yes, replacement can restore proper shifting. However, mechanical transmission problems will not be resolved by a new PCM.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>When your 2004 Chrysler Concorde 2.7L needs a new PCM, you have two main paths: purchase a blank OEM module and pay a dealer to program it, or choose a refurbished unit that arrives pre-programmed. The latter option saves you the 0.5-hour relearn labor and the cost of a dealer visit. Flagship One offers refurbished PCMs specifically for the Concorde, tested and programmed to your vehicle&#8217;s VIN and mileage, so installation is straightforward.<\/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\/media\/wysiwyg\/googleshop\/jeep4plugblack\/jeep-4plugblack-1.jpg\" alt=\"Refurbished VIN-programmed PCM for the 2004 Chrysler Concorde\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">A refurbished, VIN-programmed replacement PCM for the 2004 Chrysler Concorde from Flagship One.<\/figcaption><\/figure>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2004-chrysler-concorde-2-7l-engine-computer-pcm-ecm-ecu-programmed.html\"><b>refurbished, VIN-programmed PCM for the 2004 Chrysler Concorde<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/chrysler-pcm-ecm-ecu-engine-computer\/concorde-engine-computers.html\">Chrysler Concorde 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 2004 Chrysler Concorde 2.7L relies on its PCM for smooth engine and transmission operation. When the module fails, symptoms like no-start, stalling, or shifting issues can be frustrating. Understanding the replacement process and the factory programming requirements helps you make an informed decision. A pre-programmed PCM from Flagship One simplifies the repair, getting your Concorde back on the road quickly.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Symptoms, labor times, and programming for the 2004 Chrysler Concorde 2.7L PCM\/ECM. Learn what failure means and how a pre-programmed unit simplifies repair.<\/p>\n","protected":false},"author":1,"featured_media":525488,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,263],"tags":[50,56,894],"class_list":["post-532745","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-chrysler","tag-50","tag-chrysler","tag-concorde"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2004 Chrysler Concorde 2.7L PCM &amp; 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\/2004-chrysler-concorde-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2004 Chrysler Concorde 2.7L PCM &amp; ECM Replacement Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"Symptoms, labor times, and programming for the 2004 Chrysler Concorde 2.7L PCM\/ECM. Learn what failure means and how a pre-programmed unit simplifies repair.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/2004-chrysler-concorde-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=\"2026-07-17T20:20:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2004-chrysler-concorde-pcm-service-figure.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"548\" \/>\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=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-chrysler-concorde-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-chrysler-concorde-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"2004 Chrysler Concorde 2.7L PCM &#038; 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