{"id":433,"date":"2026-06-03T17:38:06","date_gmt":"2026-06-03T09:38:06","guid":{"rendered":"https:\/\/www.evrepairbase.com\/?p=433"},"modified":"2026-06-03T17:38:06","modified_gmt":"2026-06-03T09:38:06","slug":"b123098-left-heat-sink-overheating-diagnosis-byd-qin-pro-dm","status":"publish","type":"post","link":"https:\/\/www.evrepairbase.com\/?p=433","title":{"rendered":"B123098 - Left Heat Sink Overheating Diagnosis - BYD Qin Pro DM"},"content":{"rendered":"

Severity: \ud83d\udd34 Severe<\/strong> | System: Thermal Management<\/strong> | Source: A\/C System<\/strong><\/p>\n

DTC Meaning<\/h2>\n
\n

B123098<\/strong>: Left Heat Sink Overtemperature<\/p>\n<\/blockquote>\n

Possible Fault Areas<\/h2>\n
    \n
  • PTC<\/li>\n<\/ul>\n

    What to Do When This Code Appears?<\/h2>\n

    This is a severe fault code. It is recommended to immediately contact a BYD authorized service center for professional repair. Avoid continued driving until the fault is resolved.<\/p>\n

    Applicable Models<\/h2>\n
      \n
    • BYD Qin EV300 2017<\/li>\n
    • BYD Qin Pro DM 2018<\/li>\n
    • BYD Qin Pro DM 2019<\/li>\n<\/ul>\n

      Related Warning Lights<\/h2>\n

      The following dashboard warning lights may be related to this DTC:<\/p>\n

        \n
      • High Coolant Temperature Warning Light (Thermal Management)<\/li>\n
      • Motor Overheating Warning Light (Thermal Management)<\/li>\n
      • Motor Coolant Overtemperature Warning Light (Thermal Management)<\/li>\n<\/ul>\n

        Technical Information<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
        Item<\/th>\nContent<\/th>\n<\/tr>\n<\/thead>\n
        DTC Code<\/td>\nB123098<\/td>\n<\/tr>\n
        Fault Description<\/td>\nLeft Heat Sink Overtemperature<\/td>\n<\/tr>\n
        System<\/td>\nThermal Management System<\/td>\n<\/tr>\n
        Source System<\/td>\nA\/C<\/td>\n<\/tr>\n
        Severity Level<\/td>\nLevel 3 (Severe)<\/td>\n<\/tr>\n
        Applicable Models<\/td>\nQin<\/td>\n<\/tr>\n
        Data Source<\/td>\nBYD Service Manual<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Frequently Asked Questions<\/h2>\n

        What does BYD fault code B123098 mean?<\/h3>\n

        Fault code B123098 indicates: Left Heat Sink Overtemperature. This code originates from the BYD service manual's A\/C system fault code table.<\/p>\n

        Can I continue driving when BYD fault code B123098 appears?<\/h3>\n

        Immediate repair is recommended. This is a severe fault code. Contact a BYD authorized service center immediately for professional repair and avoid driving until the issue is resolved.<\/p>\n

        Which models does BYD fault code B123098 apply to?<\/h3>\n

        This fault code applies to BYD Qin EV300 2017, Qin Pro DM 2018, and Qin Pro DM 2019. Data sourced from BYD service manual.<\/p>","protected":false},"excerpt":{"rendered":"

        Severity: \ud83d\udd34 Severe | […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"categories":[15],"tags":[],"class_list":["post-433","post","type-post","status-publish","format-standard","hentry","category-dtc-codes"],"_links":{"self":[{"href":"https:\/\/www.evrepairbase.com\/index.php?rest_route=\/wp\/v2\/posts\/433","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.evrepairbase.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.evrepairbase.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.evrepairbase.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.evrepairbase.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=433"}],"version-history":[{"count":0,"href":"https:\/\/www.evrepairbase.com\/index.php?rest_route=\/wp\/v2\/posts\/433\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.evrepairbase.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.evrepairbase.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.evrepairbase.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}