{"id":535083,"date":"2026-07-17T18:12:39","date_gmt":"2026-07-17T22:12:39","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=535083"},"modified":"2026-07-17T18:12:39","modified_gmt":"2026-07-17T22:12:39","slug":"1999-plymouth-breeze-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/1999-plymouth-breeze-pcm-replacement-guide\/","title":{"rendered":"1999 Plymouth Breeze PCM Replacement Overview"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>1999 Plymouth Breeze PCM Replacement Overview<\/h1>\n<p class=\"hero-subtitle\">The Powertrain Control Module (PCM) in the 1999 Plymouth Breeze manages engine and transmission functions, coordinating fuel delivery, ignition timing, and shift logic. When it fails, the vehicle may exhibit erratic power delivery, reduced fuel efficiency, or complete loss of engine control.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>Engine Control Module relearn time is 0.5 hours<\/li>\n<li>Engine Control Module replacement takes 0.4 hours<\/li>\n<li>Powertrain Control Module replacement also 0.4 hours<\/li>\n<li>Powertrain Control Module relearn requires 0.5 hours<\/li>\n<li>Using the DRB Scan Tool reprograms the PCM with the original VIN and mileage<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>Replacing the PCM on a 1999 Plymouth Breeze can feel daunting, but a clear step\u2011by\u2011step guide makes the process manageable. This article explains why the PCM matters, where it sits inside the vehicle, how to swap it out, and what to expect during the programming phase. By the end, you\u2019ll understand the labor involved, the importance of correct initialization, and how to avoid common pitfalls that could lead to costly mistakes. Whether you\u2019re a seasoned mechanic or a knowledgeable DIYer, the information here equips you to perform a reliable PCM replacement and keep your Breeze running smoothly.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 1999 Plymouth Breeze<\/h2>\n<p>The Powertrain Control Module in the 1999 Plymouth Breeze is the brain behind engine and transmission coordination. It interprets sensor data, controls fuel injection, ignition timing, and shift timing, ensuring optimal performance and emissions control. <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/plymouth-pcm-ecm-ecu-engine-computer\/breeze-engine-computers.html\">replacement engine computers for the 1999 Plymouth Breeze<\/a> This module also handles diagnostic communication, allowing the vehicle\u2019s on\u2011board system to report trouble codes and monitor performance. When the PCM fails, the vehicle may experience loss of power, rough idling, or inability to start. Proper replacement restores these functions and reestablishes the vehicle\u2019s ability to communicate diagnostic information to the scan tool.<\/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 beneath the dashboard on the driver\u2019s side, tucked behind the passenger seat cushion. Accessing it requires removing the front passenger seat and disconnecting the battery to ensure safety. The replacement process involves detaching the existing PCM, disconnecting its wiring harnesses, and installing the new unit. Following the manufacturer\u2019s torque specifications, the harness connectors are reattached and the seat is reinstalled. The labor book times reflect a total of 0.4 hours for the replacement and 0.5 hours for relearn, though actual time may vary slightly with individual shop conditions.<\/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\/1999-plymouth-breeze-pcm-service-figure.webp\" alt=\"1999 Plymouth Breeze PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">From the factory PCM removal procedure for the 1999 Plymouth Breeze.<\/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 1999 Plymouth Breeze<\/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> negative cable from auxiliary jumper terminal.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> both 40-way connectors from PCM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> screws attaching PCM to bracket.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Lift<\/b> PCM up to remove it from vehicle.<\/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 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\">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\">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>After the new PCM is installed, the factory procedure requires using the DRB Scan Tool to reprogram the unit with the vehicle\u2019s original VIN and mileage. Flagship One units arrive already VIN\u2011programmed, so this step is effectively bypassed. During the installation, the technician can simply confirm the unit\u2019s readiness by running a quick communication test. <a href=\"https:\/\/www.fs1inc.com\/1999-plymouth-breeze-2-0l-engine-computer-pcm-ecm-ecu-programmed.html\">VIN\u2011programmed replacement unit<\/a> This eliminates the need for manual reprogramming and reduces the chance of data entry errors.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>A malfunctioning PCM on a 1999 Plymouth Breeze may manifest as a no\u2011start condition, erratic idle, or sudden loss of power. You might also notice a check engine light that stays on, or the vehicle may shift poorly or stall unexpectedly. When the PCM is compromised, the diagnostic tool may read a code such as Powertrain Control Module Communication Failure. Addressing these symptoms promptly can prevent further drivetrain damage and restore reliable operation.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Factory Service Bulletins Worth Knowing<\/h2>\n<p>The only relevant factory bulletin for the 1999 Plymouth Breeze\u2019s PCM is #08-030-06 Rev. A, which addresses Powertrain Control Module initialization procedures. This bulletin provides guidance on proper relearn steps and diagnostic checks following PCM replacement.<\/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\">Bulletin<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Subject<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">What It Addresses<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><b>08-030-06 Rev. A<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">08-030-06 Rev. A Powertrain Control Module Initialization<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 1999 Plymouth Breeze<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Keep the vehicle\u2019s charging system in good condition to avoid voltage spikes that can damage the PCM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure all electrical connectors remain clean and free of corrosion to maintain reliable communication.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid using high\u2011current jump starters that could over\u2011voltage the PCM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Respond quickly to any diagnostic codes to prevent secondary failures.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect connector seals periodically to keep moisture out and maintain integrity.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>What does a PCM replacement entail for my 1999 Plymouth Breeze?<\/h3>\n<p>Replacing the PCM involves removing the old module, installing a new one, and performing a relearn procedure. The process typically takes under an hour when performed by a qualified technician.<\/p>\n<h3>Will the new PCM retain my vehicle\u2019s original settings?<\/h3>\n<p>Flagship One PCM units come pre\u2011programmed with the vehicle\u2019s VIN and mileage, so the new unit will match the original settings without additional manual configuration.<\/p>\n<h3>How can I confirm the PCM is functioning after installation?<\/h3>\n<p>After installation, run a diagnostic scan to ensure the PCM communicates correctly and that no error codes are present. A smooth idle and proper shift response are good indicators of success.<\/p>\n<h3>What risks are associated with a faulty PCM in the 1999 Plymouth Breeze?<\/h3>\n<p>A malfunctioning PCM can cause the engine to stall, misfire, or fail to start. It may also trigger a check engine light and affect emission compliance.<\/p>\n<h3>Is a refurbished PCM a viable alternative to a brand\u2011new unit?<\/h3>\n<p>Refurbished PCMs can be cost\u2011effective, but they may not offer the same warranty or long\u2011term reliability guarantees as a new, VIN\u2011programmed replacement.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>If your 1999 Plymouth Breeze\u2019s PCM shows signs of failure, consider a replacement or refurbishment option that fits your budget and needs. A proper swap restores engine and transmission control, while a refurbished unit can offer savings without sacrificing performance. Discuss your choice with a trusted technician to ensure the best outcome for your vehicle.<\/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\/chryslertcgray\/chryslertc-pcm-grayplug-1.jpg\" alt=\"Refurbished VIN-programmed PCM for the 1999 Plymouth Breeze\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">A refurbished, VIN-programmed replacement PCM for the 1999 Plymouth Breeze from Flagship One.<\/figcaption><\/figure>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/1999-plymouth-breeze-2-0l-engine-computer-pcm-ecm-ecu-programmed.html\"><b>refurbished, VIN-programmed PCM for the 1999 Plymouth Breeze<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/plymouth-pcm-ecm-ecu-engine-computer\/breeze-engine-computers.html\">Plymouth Breeze 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 reliable PCM keeps your 1999 Plymouth Breeze running efficiently and safely. Whether you choose a new or refurbished unit, understanding the replacement process helps you maintain your vehicle\u2019s performance and longevity. Take action today to protect your Breeze\u2019s powertrain integrity.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Stuck with a failing PCM? Learn the steps to replace and program the 1999 Plymouth Breeze PCM safely, ensuring reliable engine performance.<\/p>\n","protected":false},"author":1,"featured_media":526038,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,284],"tags":[52,748,57],"class_list":["post-535083","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-plymouth","tag-52","tag-breeze","tag-plymouth"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>1999 Plymouth Breeze PCM Replacement Overview - 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\/1999-plymouth-breeze-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1999 Plymouth Breeze PCM Replacement Overview - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"Stuck with a failing PCM? Learn the steps to replace and program the 1999 Plymouth Breeze PCM safely, ensuring reliable engine performance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/1999-plymouth-breeze-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=\"2026-07-17T22:12:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1999-plymouth-breeze-pcm-service-figure.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"460\" \/>\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\\\/1999-plymouth-breeze-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1999-plymouth-breeze-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"1999 Plymouth Breeze PCM Replacement Overview\",\"datePublished\":\"2026-07-17T22:12:39+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1999-plymouth-breeze-pcm-replacement-guide\\\/\"},\"wordCount\":1131,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1999-plymouth-breeze-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1999-plymouth-breeze-pcm-service-figure.webp\",\"keywords\":[\"1999\",\"Breeze\",\"Plymouth\"],\"articleSection\":[\"Car\",\"Plymouth\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1999-plymouth-breeze-pcm-replacement-guide\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1999-plymouth-breeze-pcm-replacement-guide\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1999-plymouth-breeze-pcm-replacement-guide\\\/\",\"name\":\"1999 Plymouth Breeze PCM Replacement Overview - 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