{"id":518318,"date":"2025-12-10T17:40:39","date_gmt":"2025-12-10T22:40:39","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/"},"modified":"2025-12-10T17:40:39","modified_gmt":"2025-12-10T22:40:39","slug":"dtc-p2335-ignition-coil-l-secondary-circuit","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/","title":{"rendered":"P2335 Code Symptoms, Causes, Diagnostic Checklist &#038; Cost Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">P2335<\/div>\n<h1>P2335 Code Symptoms, Causes, Diagnostic Checklist &amp; Cost Guide<\/h1>\n<p class=\"hero-subtitle\">\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>**P2335** means the ECU has detected an abnormal voltage or resistance in the **Ignition Coil L secondary circuit**. <\/li>\n<li>Drivers usually notice a cylinder\u2011specific misfire, rough idle, loss of power, or hesitation on acceleration. <\/li>\n<li>Primary culprits are coil\u2011L circuit faults, wiring\/connectors, or ECU secondary\u2011circuit driver failure. <\/li>\n<li>Diagnosis starts with a scan, live\u2011data review, and targeted voltage\/resistance checks; module re\u2011programming or replacement often resolves the issue. <\/li>\n<li>Replacement modules cost **$600\u2011$900** plus **$200\u2011$300** labor; Flagship One provides VIN\u2011matched, pre\u2011programmed units with a warranty. <\/li>\n<\/ul>\n<\/div>\n<h3>Introduction <\/h3>\n<p>When the check\u2011engine light flashes and the engine stumbles on a single cylinder, the P2335 code is often the culprit. Drivers typically experience a misfire that is limited to the cylinder served by Ignition Coil L, a rough idle that feels uneven, and a noticeable dip in power during acceleration. The problem may appear suddenly or develop gradually as the circuit degrades. Because the fault is tied to the ECU\u2019s secondary\u2011circuit monitoring of coil L, early detection prevents further damage to the ignition system and preserves fuel efficiency. Understanding what the code means, why it occurs, and how to address it saves time and money.<\/p>\n<h2>Symptoms <\/h2>\n<ul>\n<li><strong>Cylinder\u2011specific misfire<\/strong> (usually cylinder L) that triggers a \u201cCheck Engine\u201d light. <\/li>\n<li><strong>Rough or uneven idle<\/strong> that feels like the engine is shaking on its own. <\/li>\n<li><strong>Power loss or hesitation<\/strong> when you press the accelerator, especially at low to mid\u2011range RPMs. <\/li>\n<li><strong>Engine vibration<\/strong> that intensifies under load and subsides when the vehicle is coasting. <\/li>\n<li><strong>Intermittent illumination<\/strong> of the MIL (Malfunction Indicator Lamp) that may clear after a few drive cycles if the fault is fleeting.<\/li>\n<\/ul>\n<p>These signs point directly to an abnormal condition in the Ignition Coil L secondary circuit, which the ECU monitors continuously.<\/p>\n<h2>Why This Happens <\/h2>\n<h3>Faulty Ignition Coil L Secondary Circuit <\/h3>\n<p>The secondary winding of coil L generates the high\u2011voltage spark needed for combustion. If the winding\u2019s resistance drifts outside the ECU\u2019s calibrated range, the module flags P2335. Coil degradation, internal short circuits, or insulation breakdown can all raise resistance or produce erratic voltage spikes.<\/p>\n<h3>Wiring or Connector Problems <\/h3>\n<p>Corroded pins, broken wires, or loose connectors between the coil and the ECU interrupt the secondary\u2011circuit signal. Even a single high\u2011resistance joint can mimic a coil fault, causing the ECU to register an abnormal condition.<\/p>\n<h3>ECU Secondary\u2011Circuit Driver Failure <\/h3>\n<p>The ECU contains a driver circuit that switches the secondary side of each coil. Internal component failure\u2014such as a burnt MOSFET or damaged driver IC\u2014prevents proper voltage delivery to coil L, prompting the fault code.<\/p>\n<h3>Software or Calibration Issues <\/h3>\n<p>Out\u2011of\u2011date ECU firmware or an incorrect calibration map may misinterpret normal voltage variations as faults. A software glitch can also prevent the ECU from correctly compensating for temperature\u2011related resistance changes in the coil.<\/p>\n<h3>Environmental Factors <\/h3>\n<p>Moisture ingress, excessive heat, or exposure to road salt can accelerate corrosion of wiring harnesses and connectors, leading to intermittent secondary\u2011circuit failures.<\/p>\n<h2>Diagnostic and Repair Procedures <\/h2>\n<ol>\n<li><strong>Read the Code and Freeze\u2011Frame Data<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Use a professional OBD\u2011II scanner to capture P2335 and any accompanying codes. <\/p>\n<p> &#8211; Review freeze\u2011frame parameters (engine speed, load, coolant temperature) to identify the operating conditions when the fault occurred.<\/p>\n<ol>\n<li><strong>Inspect Visuals<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Examine coil L, its wiring harness, and connectors for cracks, corrosion, or loose terminals. <\/p>\n<p> &#8211; Verify that the coil is properly seated and that the boot is not damaged.<\/p>\n<ol>\n<li><strong>Measure Coil Secondary Resistance<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Disconnect the coil\u2019s secondary lead and measure resistance with a digital multimeter. <\/p>\n<p> &#8211; Compare the reading to the manufacturer\u2019s specification (typically around 0.5 \u03a9 \u00b1 10%). Values outside this range suggest a coil problem.<\/p>\n<ol>\n<li><strong>Check Voltage at the ECU Driver Output<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; With the ignition on, measure the voltage on the ECU\u2019s secondary\u2011circuit output pin for coil L. <\/p>\n<p> &#8211; Absence of the expected high\u2011voltage pulse indicates a driver or communication issue.<\/p>\n<ol>\n<li><strong>Perform a Wiring Continuity Test<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Use the multimeter\u2019s continuity function to verify that the coil\u2011L circuit has no open or high\u2011resistance paths from the ECU to the coil.<\/p>\n<ol>\n<li><strong>ECU Communication Test<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Run a module communication verification routine. A failure to exchange data reliably may point to a corrupted ECU flash or a failing internal driver.<\/p>\n<ol>\n<li><strong>Reprogram or Update ECU Software<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; If the hardware checks out, update the ECU firmware to the latest version using a dealer\u2011level scan tool. <\/p>\n<p> &#8211; Re\u2011calibrate the ignition timing and coil\u2011L parameters as prescribed by the manufacturer.<\/p>\n<ol>\n<li><strong>Module Replacement (if required)<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; When the ECU driver or internal circuitry is confirmed defective, replace the control module. <\/p>\n<p> &#8211; Replacement units vary by production date and software version; the correct module is matched to the vehicle\u2019s VIN before programming.<\/p>\n<p><strong>Cost Estimates<\/strong> <\/p>\n<ul>\n<li><strong>ECU re\u2011programming<\/strong>: $120\u2011$180 (software license and labor). <\/li>\n<li><strong>Module replacement<\/strong>: $600\u2011$900 for the unit plus $200\u2011$300 labor. <\/li>\n<li><strong>Diagnostic session<\/strong>: $100\u2011$150 for a professional scan and basic testing.<\/li>\n<\/ul>\n<h2>When Replacement Makes Sense <\/h2>\n<div class=\"flagship-logo-section\">\n<a href=\"https:\/\/www.fs1inc.com\/\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<img decoding=\"async\" alt=\"Flagship One\" class=\"flagship-logo\" src=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg\"\/><br \/>\n<\/a>\n<\/div>\n<p>Modern control modules integrate ignition control, security, and immobilizer functions. A failed secondary\u2011circuit driver inside the ECU often cannot be repaired cost\u2011effectively; repeated attempts to fix internal board damage may lead to recurring faults. In such cases, replacing the module eliminates the root cause and restores reliable operation.<\/p>\n<p><strong>Flagship One specializes in VIN\u2011matched control modules, providing a plug\u2011and\u2011drive solution backed by a comprehensive warranty.<\/strong> Because the replacement unit is pre\u2011programmed to match your vehicle\u2019s exact software version and security profile, installation is straightforward for any qualified shop. This approach eliminates the need for on\u2011site coding, reduces downtime, and ensures long\u2011term reliability.<\/p>\n<h2>Preventive Maintenance <\/h2>\n<ul>\n<li><strong>Inspect and clean connectors<\/strong> every 30,000 mi; use dielectric grease to protect against moisture. <\/li>\n<li><strong>Replace worn wiring harnesses<\/strong> that show cracks or abrasion, especially in the engine bay where heat and vibration are high. <\/li>\n<li><strong>Schedule ECU software updates<\/strong> at regular service intervals; manufacturers often release patches that refine coil\u2011monitoring algorithms. <\/li>\n<li><strong>Monitor ignition system health<\/strong> by performing a resistance check on all coils during routine service; catching a coil that\u2019s drifting early can prevent secondary\u2011circuit failures. <\/li>\n<li><strong>Keep the engine bay dry<\/strong>; after washing, ensure all electrical components are thoroughly dried before starting the engine.<\/li>\n<\/ul>\n<div class=\"info-section\">\n<p><strong>Service Recommendation:<\/strong> Most issues related to this fault are diagnosed and corrected through inspection, wiring repair, and calibration rather than module replacement. For modules not typically replaced through aftermarket suppliers, diagnosis and repair should be performed by a certified automotive technician with access to factory service information and tooling.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Misfire and check\u2011engine light on your vehicle? A faulty Ignition Coil L secondary circuit can cause power loss\u2014scan, test the coil, replace if needed.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-518318","post","type-post","status-publish","format-standard","hentry","category-auto-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P2335 Code Symptoms, Causes, Diagnostic Checklist &amp; Cost Guide - Flagship One Blog<\/title>\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.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2335 Code Symptoms, Causes, Diagnostic Checklist &amp; Cost Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"Misfire and check\u2011engine light on your vehicle? A faulty Ignition Coil L secondary circuit can cause power loss\u2014scan, test the coil, replace if needed.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/\" \/>\n<meta property=\"og:site_name\" content=\"Flagship One Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/flagshipone\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/flagshipone\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-10T22:40:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg\" \/>\n<meta name=\"author\" content=\"FlagshipOne\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:site\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"FlagshipOne\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"P2335 Code Symptoms, Causes, Diagnostic Checklist &#038; Cost Guide\",\"datePublished\":\"2025-12-10T22:40:39+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/\"},\"wordCount\":1096,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"articleSection\":[\"Auto News\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/\",\"name\":\"P2335 Code Symptoms, Causes, Diagnostic Checklist & Cost Guide - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"datePublished\":\"2025-12-10T22:40:39+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"width\":2560,\"height\":617},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2335-ignition-coil-l-secondary-circuit\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"P2335 Code Symptoms, Causes, Diagnostic Checklist &#038; Cost Guide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"name\":\"Flagship One Blog\",\"description\":\"Flagship One Inc. OEM Engine Computers  Control Modules\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\",\"name\":\"Flagship One, Inc.\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/web-lg-fs1-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/web-lg-fs1-logo.png\",\"width\":1341,\"height\":1098,\"caption\":\"Flagship One, Inc.\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/flagshipone\",\"https:\\\/\\\/x.com\\\/theflagshipone\",\"https:\\\/\\\/www.instagram.com\\\/flagship_one\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UC0oyKphffBM2qkJ-gKPmMXw\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\",\"name\":\"FlagshipOne\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"caption\":\"FlagshipOne\"},\"description\":\"The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules.\",\"sameAs\":[\"https:\\\/\\\/www.fs1inc.com\\\/\",\"https:\\\/\\\/www.facebook.com\\\/flagshipone\\\/\",\"https:\\\/\\\/www.instagram.com\\\/flagship_one\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/fs1inc\"],\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/author\\\/flagship1inc\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"P2335 Code Symptoms, Causes, Diagnostic Checklist & Cost Guide - Flagship One Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/","og_locale":"en_US","og_type":"article","og_title":"P2335 Code Symptoms, Causes, Diagnostic Checklist & Cost Guide - Flagship One Blog","og_description":"Misfire and check\u2011engine light on your vehicle? A faulty Ignition Coil L secondary circuit can cause power loss\u2014scan, test the coil, replace if needed.","og_url":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/","og_site_name":"Flagship One Blog","article_publisher":"https:\/\/www.facebook.com\/flagshipone","article_author":"https:\/\/www.facebook.com\/flagshipone\/","article_published_time":"2025-12-10T22:40:39+00:00","og_image":[{"url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","type":"","width":"","height":""}],"author":"FlagshipOne","twitter_card":"summary_large_image","twitter_creator":"@theflagshipone","twitter_site":"@theflagshipone","twitter_misc":{"Written by":"FlagshipOne","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"P2335 Code Symptoms, Causes, Diagnostic Checklist &#038; Cost Guide","datePublished":"2025-12-10T22:40:39+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/"},"wordCount":1096,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","articleSection":["Auto News"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/","url":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/","name":"P2335 Code Symptoms, Causes, Diagnostic Checklist & Cost Guide - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/#primaryimage"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","datePublished":"2025-12-10T22:40:39+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/#primaryimage","url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","contentUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","width":2560,"height":617},{"@type":"BreadcrumbList","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2335-ignition-coil-l-secondary-circuit\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"P2335 Code Symptoms, Causes, Diagnostic Checklist &#038; Cost Guide"}]},{"@type":"WebSite","@id":"https:\/\/www.fs1inc.com\/blog\/#website","url":"https:\/\/www.fs1inc.com\/blog\/","name":"Flagship One Blog","description":"Flagship One Inc. OEM Engine Computers  Control Modules","publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.fs1inc.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.fs1inc.com\/blog\/#organization","name":"Flagship One, Inc.","url":"https:\/\/www.fs1inc.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2019\/06\/web-lg-fs1-logo.png","contentUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2019\/06\/web-lg-fs1-logo.png","width":1341,"height":1098,"caption":"Flagship One, Inc."},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/flagshipone","https:\/\/x.com\/theflagshipone","https:\/\/www.instagram.com\/flagship_one","https:\/\/www.youtube.com\/channel\/UC0oyKphffBM2qkJ-gKPmMXw"]},{"@type":"Person","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700","name":"FlagshipOne","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","caption":"FlagshipOne"},"description":"The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules.","sameAs":["https:\/\/www.fs1inc.com\/","https:\/\/www.facebook.com\/flagshipone\/","https:\/\/www.instagram.com\/flagship_one\/","https:\/\/www.linkedin.com\/company\/fs1inc"],"url":"https:\/\/www.fs1inc.com\/blog\/author\/flagship1inc\/"}]}},"_links":{"self":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/518318","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/comments?post=518318"}],"version-history":[{"count":0,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/518318\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=518318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=518318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=518318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}