{"id":80178,"date":"2025-05-23T08:51:24","date_gmt":"2025-05-23T13:51:24","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=80178"},"modified":"2025-06-04T05:13:02","modified_gmt":"2025-06-04T10:13:02","slug":"p2749-obd2-intermediate-shaft-speed-sensor-c-circuit","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2749-obd2-intermediate-shaft-speed-sensor-c-circuit","title":{"rendered":"P2749 OBD2: Intermediate Shaft Speed Sensor &#8220;C&#8221; Circuit"},"content":{"rendered":"<p>The P2749 OBD-II code indicates a malfunction related to the Intermediate Shaft Speed Sensor &#8220;C&#8221; circuit. This sensor plays a crucial role in the vehicle&#8217;s transmission system, providing the Transmission Control Module (TCM) with the necessary information to ensure proper gear shifting.<\/p>\n<h2>What Does the P2749 Code Mean?<\/h2>\n<p>The P2749 code is triggered when the TCM detects an issue with the signal from the Intermediate Shaft Speed Sensor. This sensor measures the speed of the intermediate shaft in the transmission, which is essential for the TCM to engage the correct gear based on the vehicle\u2019s speed and acceleration.<\/p>\n<h2>What Causes the P2749 Code?<\/h2>\n<p>Several factors can lead to the P2749 code being set, including:<\/p>\n<ul>\n<li>Intermediate shaft speed sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Transmission Control Module (TCM) failure<\/li>\n<li>Wiring issues or poor electrical connections<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2749 Code?<\/h2>\n<p>When the P2749 code is present, drivers may experience:<\/p>\n<ul>\n<li>Increased fuel consumption<\/li>\n<li>Transmission may not shift properly<\/li>\n<\/ul>\n<h2>How Serious Is the P2749 Code?<\/h2>\n<p>The P2749 code is classified as urgent and indicates that immediate action is necessary. Failure to address this issue can lead to significant damage to the vehicle&#8217;s transmission system, potentially resulting in costly repairs and unsafe driving conditions.<\/p>\n<h2>How to Diagnose the P2749 Code<\/h2>\n<p>Diagnosing the P2749 code involves the following steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the presence of the P2749 code and check for any other related codes.<\/li>\n<li>Inspect the wiring and connectors related to the Intermediate Shaft Speed Sensor for any damage or corrosion.<\/li>\n<li>Test the sensor itself to ensure it is functioning correctly.<\/li>\n<li>Check the TCM and PCM for proper operation if the sensor appears to be faulty.<\/li>\n<\/ol>\n<h2>Common Repairs for the P2749 Code<\/h2>\n<p>Some common repairs that may be required to fix the P2749 code include:<\/p>\n<ul>\n<li>Replacing the Intermediate Shaft Speed Sensor<\/li>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Reprogramming or replacing the TCM or PCM if necessary<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2749 Code?<\/h2>\n<p>The cost to repair the P2749 code can vary significantly based on the specific issue and labor rates in your area. On average, you can expect to pay between $100 and $500, including parts and labor, depending on whether you need to replace the sensor or address wiring issues.<\/p>\n<h2>Can I Fix the P2749 Code Myself?<\/h2>\n<p>While some aspects of diagnosing and repairing the P2749 code can be performed by a knowledgeable DIYer, it is essential to have a good understanding of vehicle electronics and transmission systems. If you are unsure, it is recommended to seek the expertise of a professional mechanic to avoid further damage to your vehicle.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P2749 OBD-II code indicates a malfunction related to the Intermediate Shaft Speed Sensor &#8220;C&#8221; circuit. This sensor plays a crucial role in the vehicle&#8217;s transmission system, providing the Transmission Control Module (TCM) with the necessary information to ensure proper gear shifting. What Does the P2749 Code Mean? The P2749 code is triggered when the &hellip;<\/p>\n","protected":false},"author":26,"featured_media":82053,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_uag_custom_page_level_css":"","footnotes":""},"categories":[11987],"tags":[],"class_list":["post-80178","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-p-obd2-codes-powertrain"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.6 (Yoast SEO v26.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OBD2 Code P2749 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2749 code, what causes issues with the intermediate shaft speed sensor circuit, and how to diagnose and fix common problems to maintain optimal vehicle performance.\" \/>\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.emanualonline.com\/blog\/p2749-obd2-intermediate-shaft-speed-sensor-c-circuit\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2749 OBD2: Intermediate Shaft Speed Sensor &quot;C&quot; Circuit\" \/>\n<meta property=\"og:description\" content=\"The P2749 OBD-II code indicates a malfunction related to the Intermediate Shaft Speed Sensor &quot;C&quot; circuit. This sensor plays a crucial role in the\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p2749-obd2-intermediate-shaft-speed-sensor-c-circuit\" \/>\n<meta property=\"og:site_name\" content=\"eManualOnline Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/EmanualOnline\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/jee514\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-23T13:51:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-04T10:13:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2749-obd2-intermediate-shaft-speed-sensor-c-circuit.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"JC Landry\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:site\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"JC Landry\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p2749-obd2-intermediate-shaft-speed-sensor-c-circuit#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p2749-obd2-intermediate-shaft-speed-sensor-c-circuit\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P2749 OBD2: Intermediate Shaft Speed Sensor &#8220;C&#8221; 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This sensor plays a crucial role in the vehicle&#8217;s transmission system, providing the Transmission Control Module (TCM) with the necessary information to ensure proper gear shifting. What Does the P2749 Code Mean? The P2749 code is triggered when the&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/comments?post=80178"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80178\/revisions"}],"predecessor-version":[{"id":82055,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80178\/revisions\/82055"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/82053"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=80178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=80178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=80178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}