{"id":1138,"date":"2018-07-24T15:27:18","date_gmt":"2018-07-24T19:27:18","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=1138"},"modified":"2025-12-04T00:06:59","modified_gmt":"2025-12-04T05:06:59","slug":"1998-jeep-grand-cherokee-4-0l-56044513ac-05014152aa-pcm-ecm-ecu-control-module-engine-computer-replacement","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/1998-jeep-grand-cherokee-4-0l-56044513ac-05014152aa-pcm-ecm-ecu-control-module-engine-computer-replacement\/","title":{"rendered":"1998 Jeep Grand Cherokee 4.0L 56044513AC 05014152AA- PCM ECM ECU Control Module (Engine Computer) Replacement"},"content":{"rendered":"

The Powertrain Control Module, or PCM, is a pre-programmed digital computer that operates the engine control system of a vehicle. If the PCM, the \u201cbrains\u201d, fails to work correctly, the rest of the engine will have issues as well. Luckily, if proper diagnosis points toward replacement of the PCM as the solution, the PCM can be easily replaced to fix the issue. We\u2019ll show you how to replace a PCM ECM ECU Control Module on a 1998 Jeep Grand Cherokee.<\/p>\n

\"Flagship<\/p>\n

To begin the replacement of the PCM for your 1998 Jeep Grand Cherokee, you need to locate the module. Keep in mind that the coolant reserve\/overflow tank might obstruct your way, but you can find the PCM on the cowl panel in the right\/rear side of the engine compartment.<\/p>\n

REMOVAL <\/strong><\/b><\/p>\n

Here are the steps to follow:<\/p>\n

    \n
  1. Start by disconnecting the negative battery cable. This will ensure safety during the process.<\/li>\n
  2. Next, remove the coolant reserve\/overflow tank. You can do this by unscrewing one bolt and two nuts. This will provide better access to the PCM.<\/li>\n
  3. Carefully unplug the three 32-way connectors on the PCM. Take your time to avoid any damage to the connectors or the PCM itself.<\/li>\n
  4. Now, it’s time to remove the three PCM mounting bolts. These bolts keep the PCM securely in place, so make sure to remove them carefully.<\/li>\n
  5. Finally, remove the jeep PCM. You can find a reliable source like jeep PCM<\/a> to guide you through this process.<\/li>\n<\/ol>\n

    By diligently following these comprehensive steps, you will be able to proficiently disconnect and remove the PCM from your vehicle.<\/p>\n

    Replacing the engine control module in your Jeep.<\/strong><\/b><\/h3>\n
      \n
    1. Check the three 32-way electrical connectors for any damaged pins. If the pins are not damaged, proceed.<\/li>\n
    2. Position the 1998 Jeep Grand Cherokee PCM on the cowl panel and securely fasten it using the three mounting bolts, applying a torque of 1 N\u00b7m (9 in. lbs.).<\/li>\n
    3. Reinstall the coolant reserve\/overflow tank using one bolt and two nuts.<\/li>\n
    4. Connect the negative cable to the battery.<\/li>\n<\/ol>\n

      If you require a replacement PCM, we offer an extensive selection of programmed plug-and-play 1998 Jeep Grand Cherokee PCMs. Rest assured, the PCM you order from us is 100% ready for immediate installation. Should you have any inquiries, please do not hesitate to contact our Customer Service department at 516-766-2223.<\/strong><\/b> We are always here to assist you! Our powertrain control modules are programmed plug-and-play and come with the latest software updates. No core is required for purchase.<\/p>\n

      For more information on the 1998 Jeep Grand Cherokee 56044513AC 05014152AA 4.0L PCM, please visit this link.<\/a> Additionally, you can find the 1998 Jeep Grand Cherokee 4.0L PCM here<\/a>. At Flagship One, Inc., we pride ourselves on offering the lowest prices with the best quality.<\/p>\n","protected":false},"excerpt":{"rendered":"

      A step by step guide to locating and replacing a 1998 Jeep Grand Cherokee 4.0L Engine Computer.<\/p>\n","protected":false},"author":1,"featured_media":1008,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,34,40],"tags":[44,47,23,22,46,45,42,29,43],"class_list":["post-1138","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-feature","category-jeep","category-repair-manuals","tag-44","tag-cherokee","tag-ecm","tag-ecu","tag-grand","tag-jeep","tag-module","tag-pcm","tag-replace"],"acf":[],"yoast_head":"\n1998 Jeep Grand Cherokee 4.0L 56044513AC 05014152AA- PCM ECM ECU Control Module (Engine Computer) Replacement<\/title>\n<meta name=\"description\" content=\"PCM failed? Need a replacement? 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