{"id":531505,"date":"2026-07-17T13:23:26","date_gmt":"2026-07-17T17:23:26","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=531505"},"modified":"2026-07-19T11:58:52","modified_gmt":"2026-07-19T15:58:52","slug":"1997-jeep-cherokee-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/","title":{"rendered":"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming Guide<\/h1>\n<p class=\"hero-subtitle\">The Powertrain Control Module (PCM) in your 1997 Jeep Cherokee 2.5L is the main computer that manages engine fuel injection, ignition timing, and transmission shift points. When it fails, the vehicle may not start, run poorly, or trigger diagnostic trouble codes. Replacement requires careful handling to avoid damage.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>The PCM controls engine and transmission functions in your 1997 Jeep Cherokee 2.5L.<\/li>\n<li>Common failure symptoms include no-start, stalling, and check engine light.<\/li>\n<li>Replacement takes about 0.5 hours for the module itself plus 0.5 hours for a relearn procedure.<\/li>\n<li>Two factory service bulletins address PCM wiring harness connector repair and service cautions.<\/li>\n<li>Flagship One provides pre-programmed PCMs that eliminate the need for dealer programming.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>If your 1997 Jeep Cherokee with the 2.5L engine is experiencing intermittent stalling, a no-start condition, or a persistent check engine light, the Powertrain Control Module (PCM) may be the culprit. The PCM is the brain of your vehicle, governing fuel delivery, ignition timing, and transmission operation. Over time, heat, vibration, and electrical stress can cause internal failures or corrupt its programming. This guide covers everything you need to know about PCM failure symptoms, where the module is located, how replacement is performed, and what factory service bulletins apply. You will also learn about the critical programming step required after installation and how Flagship One simplifies that process. Whether you are a DIY owner or a professional technician, understanding these details helps you make an informed repair decision and avoid common pitfalls that can damage a new module.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 1997 Jeep Cherokee<\/h2>\n<p>The Powertrain Control Module (PCM) in your 1997 Jeep Cherokee 2.5L is a single integrated computer that manages both engine and transmission functions. It receives input from sensors such as the crankshaft position sensor, throttle position sensor, and oxygen sensor, then adjusts fuel injector pulse width, ignition timing, and shift solenoids to optimize performance and emissions. Because the 2.5L engine relies entirely on the PCM for spark and fuel control, a failed module can leave you stranded. The PCM also stores diagnostic trouble codes that help pinpoint issues. When the module fails, it often does so intermittently at first, making diagnosis tricky. Replacing the PCM with a quality unit is essential, and you can find <a href=\"https:\/\/www.fs1inc.com\/jeep-ecu-ecm-pcm\/cherokee-engine-computers.html\">replacement PCMs for the 1997 Jeep Cherokee<\/a> that are pre-programmed to match your vehicle&#8217;s VIN and options. This ensures plug-and-play operation without the need for a dealer visit.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>The PCM in your 1997 Jeep Cherokee 2.5L is located in the engine compartment, typically mounted on the driver&#8217;s side fender or the firewall. To access it, you may need to remove a plastic cover or air intake duct. Replacement begins by disconnecting the negative battery cable and waiting a few minutes to discharge the system. Then unplug the two large wiring harness connectors, remove the mounting bolts, and lift out the old module. The factory book time for PCM removal and replacement is 0.5 hours. After installing the new PCM, an additional 0.5 hours is required for the ECM relearn procedure, which involves a specific key cycle and idle sequence to allow the module to adapt to the 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\/blog\/wp-content\/uploads\/2026\/07\/1997-jeep-cherokee-pcm-location-diagram.webp\" alt=\"1997 Jeep Cherokee PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">PCM mounting location on the 1997 Jeep Cherokee.<\/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 1997 Jeep Cherokee<\/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> the negative battery cable at battery.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> cover over electrical connectors.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Unplug<\/b> the three 32 &#8211; way connectors.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> three PCM mounting bolts and remove PCM 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\">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\">0.5 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\">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\">0.5 hr<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After installing a new PCM in your 1997 Jeep Cherokee 2.5L, the factory procedure requires a programming step to load the correct calibration and VIN into the module. This is typically done with a dealer-level scan tool and can take up to 0.5 hours for the relearn process. The service bulletin #18-21-98 cautions that improper handling or power loss during programming can damage the PCM. Flagship One eliminates this step by delivering <a href=\"https:\/\/www.fs1inc.com\/1997-jeep-cherokee-2-5l-engine-computer-pcm-ecm-ecu-programmed.html\">a VIN-programmed replacement PCM<\/a> that arrives ready to install. The module is pre-loaded with the correct software for your specific 2.5L engine and transmission combination, so you simply install it, perform the relearn procedure, and drive. This saves time and avoids the risk of a failed programming session.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>A failing PCM in your 1997 Jeep Cherokee 2.5L can produce a wide range of symptoms. The most common is a no-start condition where the engine cranks but does not fire, because the PCM is not sending spark or fuel injector commands. Intermittent stalling, especially when the engine reaches operating temperature, is another frequent complaint. You may also notice rough idle, hesitation during acceleration, or a sudden loss of power. The check engine light may illuminate with codes such as P0601 (Internal Control Module Memory Checksum Error) or other communication faults. In some cases, the transmission may shift erratically or fail to shift at all. A dead scan-tool communication with the PCM is a strong indicator that the module has failed internally. If you experience multiple electrical gremlins that seem unrelated, the PCM should be high on your diagnostic list.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Factory Service Bulletins Worth Knowing<\/h2>\n<p>Two factory service bulletins apply to the 1997 Jeep Cherokee 2.5L PCM. Bulletin #18-21-98, titled &#8220;Powertrain Control Module (PCM) Service Caution,&#8221; warns technicians about the risk of damaging the PCM during diagnosis or replacement, particularly from voltage spikes or improper connector handling. Bulletin #08-01-97, titled &#8220;JTEC PCM Wiring Harness Connector Repair Packages,&#8221; provides information on repairing the wiring harness connectors that attach to the PCM. These connectors can develop corrosion or broken terminal locks, leading to intermittent electrical contact. Both bulletins emphasize careful inspection and handling to avoid unnecessary module 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>18-21-98<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">18-21-98 Powertrain Control Module (PCM) Service Caution<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">&mdash;<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><b>08-01-97<\/b><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">08-01-97 JTEC PCM Wiring Harness Connector Repair Packages<\/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 1997 Jeep Cherokee<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Maintain your charging system: keep the battery and alternator in good condition to avoid voltage spikes that can damage the PCM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Clean and tighten all ground connections, especially the engine-to-chassis ground strap, to ensure stable voltage reference.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">When jump-starting, connect cables properly and avoid cranking with a weak battery that can cause voltage drops.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address any diagnostic trouble codes promptly; a small issue like a failing sensor can stress the PCM over time.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect the PCM wiring harness connectors for corrosion, bent pins, or broken locking tabs, and repair as needed using the factory repair packages.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Use dielectric grease on connector seals to keep moisture out and prevent corrosion from spreading to the PCM terminals.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>When your 1997 Jeep Cherokee 2.5L needs a new PCM, you have two main options: repair the existing module if the failure is minor, or replace it with a refurbished or new unit. Given the complexity of internal PCM faults, replacement is often the more reliable path. Flagship One offers refurbished PCMs that are tested and pre-programmed for your specific vehicle, saving you the time and expense of a dealer visit.<\/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\/chryslerjtec\/chrysler-pcm-jtec-1.jpg\" alt=\"Refurbished VIN-programmed PCM for the 1997 Jeep Cherokee\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">A refurbished, VIN-programmed replacement PCM for the 1997 Jeep Cherokee from Flagship One.<\/figcaption><\/figure>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/1997-jeep-cherokee-2-5l-engine-computer-pcm-ecm-ecu-programmed.html\"><b>refurbished, VIN-programmed PCM for the 1997 Jeep Cherokee<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/jeep-ecu-ecm-pcm\/cherokee-engine-computers.html\">Jeep Cherokee 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 PCM in your 1997 Jeep Cherokee 2.5L is a critical component that controls engine and transmission operation. Recognizing failure symptoms early and understanding the replacement process can save you time and money. With a pre-programmed PCM from Flagship One, you can restore your Cherokee&#8217;s performance without the hassle of dealer programming. Order your replacement today and get back on the road with confidence.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Symptoms of a failing PCM in your 1997 Jeep Cherokee 2.5L include no-start, stalling, and check engine light. Learn about replacement, location, and programming cautions.<\/p>\n","protected":false},"author":1,"featured_media":520444,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,34],"tags":[78,47,45],"class_list":["post-531505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-jeep","tag-78","tag-cherokee","tag-jeep"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming Guide - Flagship One Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"Symptoms of a failing PCM in your 1997 Jeep Cherokee 2.5L include no-start, stalling, and check engine light. Learn about replacement, location, and programming cautions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-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=\"2026-07-17T17:23:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-19T15:58:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1997-jeep-cherokee-pcm-location-diagram.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"637\" \/>\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=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming Guide\",\"datePublished\":\"2026-07-17T17:23:26+00:00\",\"dateModified\":\"2026-07-19T15:58:52+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/\"},\"wordCount\":1330,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1997-jeep-cherokee-pcm-location-diagram.webp\",\"keywords\":[\"1997\",\"Cherokee\",\"Jeep\"],\"articleSection\":[\"Car\",\"Jeep\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/\",\"name\":\"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming Guide - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1997-jeep-cherokee-pcm-location-diagram.webp\",\"datePublished\":\"2026-07-17T17:23:26+00:00\",\"dateModified\":\"2026-07-19T15:58:52+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1997-jeep-cherokee-pcm-location-diagram.webp\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1997-jeep-cherokee-pcm-location-diagram.webp\",\"width\":640,\"height\":637,\"caption\":\"Factory location diagram for the 1997 Jeep Cherokee engine control module\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1997-jeep-cherokee-pcm-replacement-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming 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":"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming 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\/1997-jeep-cherokee-pcm-replacement-guide\/","og_locale":"en_US","og_type":"article","og_title":"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming Guide - Flagship One Blog","og_description":"Symptoms of a failing PCM in your 1997 Jeep Cherokee 2.5L include no-start, stalling, and check engine light. Learn about replacement, location, and programming cautions.","og_url":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-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":"2026-07-17T17:23:26+00:00","article_modified_time":"2026-07-19T15:58:52+00:00","og_image":[{"width":640,"height":637,"url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1997-jeep-cherokee-pcm-location-diagram.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":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming Guide","datePublished":"2026-07-17T17:23:26+00:00","dateModified":"2026-07-19T15:58:52+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/"},"wordCount":1330,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1997-jeep-cherokee-pcm-location-diagram.webp","keywords":["1997","Cherokee","Jeep"],"articleSection":["Car","Jeep"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/","url":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/","name":"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming Guide - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/#primaryimage"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1997-jeep-cherokee-pcm-location-diagram.webp","datePublished":"2026-07-17T17:23:26+00:00","dateModified":"2026-07-19T15:58:52+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/#primaryimage","url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1997-jeep-cherokee-pcm-location-diagram.webp","contentUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1997-jeep-cherokee-pcm-location-diagram.webp","width":640,"height":637,"caption":"Factory location diagram for the 1997 Jeep Cherokee engine control module"},{"@type":"BreadcrumbList","@id":"https:\/\/www.fs1inc.com\/blog\/1997-jeep-cherokee-pcm-replacement-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"1997 Jeep Cherokee 2.5L PCM ECM Replacement and Programming 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\/531505","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=531505"}],"version-history":[{"count":2,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/531505\/revisions"}],"predecessor-version":[{"id":538406,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/531505\/revisions\/538406"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media\/520444"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=531505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=531505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=531505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}