{"id":80177,"date":"2025-05-23T08:51:31","date_gmt":"2025-05-23T13:51:31","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=80177"},"modified":"2025-06-04T05:13:01","modified_gmt":"2025-06-04T10:13:01","slug":"p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent","title":{"rendered":"P2748 OBD2: Intermediate Shaft Speed Sensor &#8220;B&#8221; Circuit Intermittent"},"content":{"rendered":"<p>The P2748 code is a diagnostic trouble code (DTC) that indicates a problem with the Intermediate Shaft Speed Sensor &#8220;B&#8221; Circuit. This code is part of the OBD-II system, which monitors various components of your vehicle&#8217;s engine and transmission.<\/p>\n<h2>What Does the P2748 Code Mean?<\/h2>\n<p>The P2748 code means that the Transmission Control Module (TCM) has detected an intermittent issue with the Intermediate Shaft Speed Sensor &#8220;B&#8221; Circuit. This sensor is crucial for reporting how fast the intermediate shaft of the transmission is spinning, which allows the TCM to engage the correct gear for optimal performance.<\/p>\n<h2>What Causes the P2748 Code?<\/h2>\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, such as frayed or broken wires<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2748 Code?<\/h2>\n<ul>\n<li>Transmission may not shift properly<\/li>\n<li>Increased fuel consumption<\/li>\n<li>Unexpected gear changes<\/li>\n<li>Slipping transmission<\/li>\n<\/ul>\n<h2>How Serious Is the P2748 Code?<\/h2>\n<p>The P2748 code is classified as urgent. If left unaddressed, this issue can lead to severe transmission damage, potentially resulting in costly repairs. It can also pose safety risks to the driver and passengers due to unpredictable vehicle behavior.<\/p>\n<h2>How to Diagnose the P2748 Code<\/h2>\n<p>Diagnosing the P2748 code involves the following steps:<\/p>\n<ul>\n<li>Using an OBD-II scanner to confirm the P2748 code is present.<\/li>\n<li>Inspecting the Intermediate Shaft Speed Sensor and its wiring for damage or disconnections.<\/li>\n<li>Checking the TCM and PCM for faults.<\/li>\n<li>Performing a test drive to monitor transmission performance.<\/li>\n<\/ul>\n<h2>Common Repairs for the P2748 Code<\/h2>\n<p>Common repairs for the P2748 code may 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<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2748 Code?<\/h2>\n<p>The cost to fix the P2748 code can vary significantly depending on the vehicle make and model, along with labor rates in your area. On average, repairs can range from $150 to $800, including parts and labor.<\/p>\n<h2>Can I Fix the P2748 Code Myself?<\/h2>\n<p>While some DIY mechanics may be able to diagnose and replace the Intermediate Shaft Speed Sensor or repair wiring issues, it is recommended to consult a professional mechanic for a thorough diagnosis and repair. This approach ensures that all underlying issues are addressed properly, which can save time and money in the long run.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P2748 code is a diagnostic trouble code (DTC) that indicates a problem with the Intermediate Shaft Speed Sensor &#8220;B&#8221; Circuit. This code is part of the OBD-II system, which monitors various components of your vehicle&#8217;s engine and transmission. What Does the P2748 Code Mean? The P2748 code means that the Transmission Control Module (TCM) &hellip;<\/p>\n","protected":false},"author":26,"featured_media":82056,"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-80177","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 v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>OBD2 Code P2748 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2748 code, what causes intermediate shaft speed sensor &quot;B&quot; circuit intermittent issues, and how to diagnose and fix common problems to maintain optimal transmission 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\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2748 OBD2: Intermediate Shaft Speed Sensor &quot;B&quot; Circuit Intermittent\" \/>\n<meta property=\"og:description\" content=\"The P2748 code is a diagnostic trouble code (DTC) that indicates a problem with the Intermediate Shaft Speed Sensor &quot;B&quot; Circuit. 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He learned to write after spending over a decade doing it.","sameAs":["https:\/\/www.linkedin.com\/in\/jean-claude-landry-857781186\/"],"url":"https:\/\/www.emanualonline.com\/blog\/author\/jclandry"}]}},"uagb_featured_image_src":{"full":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2748-obd2-intermediate-shaft-speed-sensor-b-circuit-intermittent-1050x525.png",1050,525,true]},"uagb_author_info":{"display_name":"JC Landry","author_link":"https:\/\/www.emanualonline.com\/blog\/author\/jclandry"},"uagb_comment_info":0,"uagb_excerpt":"The P2748 code is a diagnostic trouble code (DTC) that indicates a problem with the Intermediate Shaft Speed Sensor &#8220;B&#8221; Circuit. This code is part of the OBD-II system, which monitors various components of your vehicle&#8217;s engine and transmission. What Does the P2748 Code Mean? 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