{"id":77643,"date":"2025-08-31T15:23:58","date_gmt":"2025-08-31T20:23:58","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77643"},"modified":"2025-08-31T15:53:55","modified_gmt":"2025-08-31T20:53:55","slug":"p0385-obd2-crankshaft-position-sensor-b-circuit","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0385-obd2-crankshaft-position-sensor-b-circuit","title":{"rendered":"P0385 OBD2: Crankshaft Position Sensor &#8220;B&#8221; Circuit"},"content":{"rendered":"<h2>What Does the P0385 Code Mean?<\/h2>\n<p>The OBD-II code P0385 is defined as a Crankshaft Position Sensor &#8220;B&#8221; Circuit issue. This sensor measures the rotational speed and position of the crankshaft, providing essential data to the Powertrain Control Module (PCM) for controlling ignition timing and fuel delivery.<\/p>\n<h2>What Causes the P0385 Code?<\/h2>\n<p>The P0385 code can be triggered by several factors, including:<\/p>\n<ul>\n<li>Broken tone ring<\/li>\n<li>Crankshaft Position Sensor (CKP) failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0385 Code?<\/h2>\n<p>Drivers experiencing the P0385 code may notice several symptoms, such as:<\/p>\n<ul>\n<li>Decreased engine performance<\/li>\n<li>Engine may not start<\/li>\n<li>Increased fuel consumption<\/li>\n<\/ul>\n<h2>How Serious Is the P0385 Code?<\/h2>\n<p>The P0385 code is classified as urgent. Immediate action is necessary, as it can lead to severe vehicle damage and compromise driver and passenger safety. Ignoring this code can result in significant repair costs down the line.<\/p>\n<h2>How to Diagnose the P0385 Code<\/h2>\n<p>Proper diagnosis of the P0385 code involves a thorough inspection process, which includes:<\/p>\n<ul>\n<li>Using an OBD-II scanner to confirm the code<\/li>\n<li>Inspecting the crankshaft position sensor and wiring for damage<\/li>\n<li>Testing the PCM for faults<\/li>\n<li>Checking the tone ring for breaks or misalignment<\/li>\n<\/ul>\n<h2>Common Repairs for the P0385 Code<\/h2>\n<p>Common repairs that may be needed for the P0385 code include:<\/p>\n<ul>\n<li>Replacing the Crankshaft Position Sensor<\/li>\n<li>Repairing or replacing damaged wiring<\/li>\n<li>Addressing issues with the tone ring<\/li>\n<li>Replacing or reprogramming the Powertrain Control Module (PCM) if necessary<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0385 Code?<\/h2>\n<p>The cost to fix the P0385 code can vary widely depending on the underlying issue. On average, you might expect to pay anywhere from $100 to $500 for repairs, with sensor replacement generally being the most common and least expensive option.<\/p>\n<h2>Can I Fix the P0385 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may attempt to fix the P0385 code themselves, it&#8217;s essential to have a good understanding of automotive systems. Proper diagnosis is crucial, as simply replacing the sensor without identifying the root cause may not resolve the issue. If you&#8217;re unsure, it&#8217;s advisable to seek the help of a professional mechanic.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does the P0385 Code Mean? The OBD-II code P0385 is defined as a Crankshaft Position Sensor &#8220;B&#8221; Circuit issue. This sensor measures the rotational speed and position of the crankshaft, providing essential data to the Powertrain Control Module (PCM) for controlling ignition timing and fuel delivery. What Causes the P0385 Code? The P0385 code &hellip;<\/p>\n","protected":false},"author":26,"featured_media":94692,"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-77643","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 v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>OBD2 Code P0385 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0385 code, what causes crankshaft position sensor &quot;B&quot; circuit issues, and how to diagnose and fix common issues to maintain optimal engine 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\/p0385-obd2-crankshaft-position-sensor-b-circuit\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0385 OBD2: Crankshaft Position Sensor &quot;B&quot; Circuit\" \/>\n<meta property=\"og:description\" content=\"What Does the P0385 Code Mean? The OBD-II code P0385 is defined as a Crankshaft Position Sensor &quot;B&quot; Circuit issue. 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He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.","sameAs":["https:\/\/www.facebook.com\/jee514","https:\/\/www.instagram.com\/rat_in_chief\/","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\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0385-obd2-crankshaft-position-sensor-b-circuit-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":"What Does the P0385 Code Mean? The OBD-II code P0385 is defined as a Crankshaft Position Sensor &#8220;B&#8221; Circuit issue. This sensor measures the rotational speed and position of the crankshaft, providing essential data to the Powertrain Control Module (PCM) for controlling ignition timing and fuel delivery. What Causes the P0385 Code? The P0385 code&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77643","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=77643"}],"version-history":[{"count":3,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77643\/revisions"}],"predecessor-version":[{"id":94724,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77643\/revisions\/94724"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/94692"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}