{"id":518759,"date":"2025-12-11T00:34:06","date_gmt":"2025-12-11T05:34:06","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/"},"modified":"2025-12-11T00:34:06","modified_gmt":"2025-12-11T05:34:06","slug":"dtc-p2777-upshift-switch-circuit-high","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/","title":{"rendered":"P2777 Code Symptoms, Causes, Diagnosis &#038; Repair Costs Guide Tips"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">P2777<\/div>\n<h1>P2777 Code Symptoms, Causes, Diagnosis &amp; Repair Costs Guide Tips<\/h1>\n<p class=\"hero-subtitle\">\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>**Code definition:** P2777 = Upshift Switch Circuit High. <\/li>\n<li>**Typical signs:** No upshifts, harsh or delayed shifts, transmission\u2011lamp illumination, reduced acceleration. <\/li>\n<li>**Common causes:** Faulty upshift switch, wiring short or open, corroded connector, TCM input\u2011circuit failure, software glitch. <\/li>\n<li>**Diagnostic focus:** Scan, verify switch voltage, inspect wiring\/connectors, test switch operation, consider TCM re\u2011programming. <\/li>\n<li>**Replacement tip:** When the TCM\u2019s internal circuitry is compromised, a VIN\u2011matched replacement from Flagship One provides a reliable, plug\u2011and\u2011drive solution. <\/li>\n<\/ul>\n<\/div>\n<h3>P2777 Code Symptoms and Warning Signs <\/h3>\n<p>Drivers typically notice that the vehicle refuses to shift into higher gears. The transmission may stay in first or second gear even when you press the accelerator, producing a sluggish feel and slower\u2011than\u2011normal acceleration. Shifts that do occur can feel harsh, delayed, or jerky, and the transmission\u2011warning lamp (often a \u201cT\u201d or \u201cCheck Engine\u201d light) will flash or stay illuminated. In extreme cases the vehicle may enter \u201climp\u2011mode,\u201d limiting speed to protect the drivetrain. These symptoms appear suddenly or develop gradually as the fault persists. <\/p>\n<h3>Why Upshift Switch Problems Occur <\/h3>\n<h4>Faulty Upshift Switch <\/h4>\n<p>The upshift switch (often a paddle\u2011shifter or gear\u2011selector lever sensor) sends a voltage signal to the Transmission Control Module (TCM). A failed switch can output a constant high voltage, which the TCM interprets as a continuous \u201cno\u2011upshift\u201d condition, triggering P2777. <\/p>\n<h4>Wiring Short or Open Circuit <\/h4>\n<p>A short to the power supply or a broken ground in the upshift\u2011switch circuit raises the voltage beyond the TCM\u2019s acceptable range. Corrosion, chafed harnesses, or loose pins can create this condition, especially in vehicles exposed to moisture or road salt. <\/p>\n<h4>Connector Corrosion or Poor Contact <\/h4>\n<p>Even with a good switch and intact wiring, a corroded connector can add resistance that skews the voltage reading. Oxidation on the pins or bent terminals can cause intermittent high\u2011voltage signals, leading to sporadic upshift failures. <\/p>\n<h4>TCM Input\u2011Circuit Failure <\/h4>\n<p>The TCM\u2019s front\u2011end circuitry that conditions the upshift\u2011switch signal may develop internal faults (e.g., failed voltage regulator or damaged analog\u2011to\u2011digital converter). When the module cannot correctly interpret the signal, it reports a \u201ccircuit high\u201d condition. <\/p>\n<h4>Software Glitch or Calibration Error <\/h4>\n<p>Occasionally, an outdated or corrupted TCM firmware version misprocesses the upshift\u2011switch voltage range. A calibration mismatch after a transmission\u2011fluid change or after installing a performance tuner can also provoke P2777. <\/p>\n<h3>Diagnostic and Repair Procedures <\/h3>\n<ol>\n<li><strong>Scan for Codes<\/strong> \u2013 Connect a professional OBD\u2011II scanner capable of reading transmission\u2011control codes. Record P2777 and any related codes (e.g., P2780, P2790) that may indicate broader TCM issues.\n<\/li>\n<li><strong>Verify Voltage at the Switch<\/strong> \u2013 With the ignition on and the vehicle in park, measure the voltage on the upshift\u2011switch signal wire. The specification is typically 0 V (switch open) to 5 V (switch activated). A reading consistently above the maximum (often &gt;5.5 V) confirms a \u201ccircuit high.\u201d\n<\/li>\n<li><strong>Inspect Wiring and Connectors<\/strong> \u2013 Visually examine the harness for chafing, heat damage, or exposed conductors. Disconnect the connector and test continuity between the switch terminal and the TCM pin. Resistance should be near 0 \u03a9; any deviation suggests a short or open.\n<\/li>\n<li><strong>Test the Switch<\/strong> \u2013 Remove the upshift switch and bench\u2011test it with a multimeter or a switch\u2011tester. Operate the switch through its full range; the voltage should toggle cleanly between 0 V and the specified activation voltage. Replace the switch if it remains high or erratic.\n<\/li>\n<li><strong>Oscilloscope Check (Optional)<\/strong> \u2013 For intermittent faults, an oscilloscope can capture voltage spikes or noise on the signal line while driving. Spikes above the threshold confirm a wiring or grounding issue.\n<\/li>\n<li><strong>TCM Re\u2011Programming<\/strong> \u2013 If the hardware checks out, update the TCM firmware to the latest manufacturer version. Re\u2011flash procedures are performed with a dealer\u2011level scan tool or a calibrated aftermarket programmer.\n<\/li>\n<li><strong>Replace the TCM<\/strong> \u2013 When voltage measurements are normal, the switch and wiring are sound, and the firmware is current, the TCM\u2019s internal input circuit is the likely culprit. Replacement typically costs $600\u2011$900 for the module plus $200\u2011$300 labor.\n<\/li>\n<\/ol>\n<p><strong>Cost Snapshot<\/strong> <\/p>\n<ul>\n<li>Diagnostic scan &amp; basic wiring test: $100\u2011$150. <\/li>\n<li>Switch replacement (if needed): $30\u2011$80 plus labor $50\u2011$100. <\/li>\n<li>Wiring repair or connector cleaning: $50\u2011$150. <\/li>\n<li>TCM re\u2011programming: $120\u2011$180. <\/li>\n<li>Full TCM replacement: $800\u2011$1,200 total (parts + labor). <\/li>\n<\/ul>\n<h3>When Replacement Makes More Sense Than Repair <\/h3>\n<p>If the TCM\u2019s internal voltage\u2011conditioning circuitry has failed, repair attempts often provide only a temporary fix. Repeated high\u2011voltage readings after wiring and switch verification indicate that the module itself is compromised. In such cases, installing a new, VIN\u2011matched TCM eliminates the risk of recurring P2777 events and restores full transmission functionality. <\/p>\n<p>Modern control modules are complex and integrated with security and immobilizer systems. That&#8217;s why choosing a replacement isn\u2019t only about the hardware\u2014it&#8217;s about correct programming and compatibility. <strong>Flagship One<\/strong> specializes in VIN\u2011matched control modules, providing a plug\u2011and\u2011drive solution backed by warranty. Their units are pre\u2011programmed to your vehicle\u2019s exact specifications, ensuring seamless communication with the transmission and other vehicle networks. <\/p>\n<h3>Preventive Maintenance <\/h3>\n<ul>\n<li><strong>Keep connectors clean and dry.<\/strong> Periodically spray a dielectric cleaner on the upshift\u2011switch connector and re\u2011torque the pins to manufacturer specifications. <\/li>\n<li><strong>Inspect harnesses for wear.<\/strong> Look under the steering column and along the floor pan for signs of abrasion, especially after tire rotations or suspension work. <\/li>\n<li><strong>Maintain transmission fluid.<\/strong> Replace fluid at the interval recommended by the manufacturer; fresh fluid helps keep the TCM\u2019s temperature within design limits, reducing stress on internal circuits. <\/li>\n<li><strong>Update TCM software.<\/strong> Schedule a firmware check during major service visits; manufacturers often release updates that refine signal thresholds and improve reliability. <\/li>\n<li><strong>Avoid aftermarket tuners that modify shift logic<\/strong> unless the TCM is re\u2011calibrated by a qualified technician; improper calibrations can push voltage signals outside safe ranges.<\/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 class=\"content-section\">\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"faq-item\">\n<div class=\"faq-question\">1. What does a flashing transmission\u2011lamp mean when P2777 is present?<\/div>\n<div class=\"faq-answer\">\n<p>The lamp indicates that the TCM has detected an out\u2011of\u2011range voltage on the upshift\u2011switch circuit. While the vehicle may still operate, it will stay in lower gears and may enter limp\u2011mode to protect the drivetrain.<\/p>\n<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-question\">2. Can a bad upshift switch alone trigger P2777?<\/div>\n<div class=\"faq-answer\">\n<p>Yes. If the switch is internally shorted, it can continuously send a high voltage to the TCM, causing the code even when the wiring and TCM are healthy.<\/p>\n<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-question\">3. How much does a TCM replacement typically cost?<\/div>\n<div class=\"faq-answer\">\n<p>Replacement units vary depending on production date and software version, so the correct module is matched by VIN before programming. Expect a total cost of $800\u2011$1,200, including the module and labor.<\/p>\n<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-question\">4. Is it safe to drive with P2777 until I can get it fixed?<\/div>\n<div class=\"faq-answer\">\n<p>You can drive, but performance will be limited. The vehicle may not shift out of first or second gear, reducing acceleration and increasing fuel consumption. Prolonged operation can cause additional wear on the transmission.<\/p>\n<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-question\">5. Do I need a dealer to re\u2011program the TCM after replacement?<\/div>\n<div class=\"faq-answer\">\n<p>A dealer\u2011level scan tool or an authorized aftermarket programmer is required to load the correct VIN\u2011specific firmware. Flagship One\u2019s VIN\u2011matched modules arrive pre\u2011programmed, eliminating the need for on\u2011site coding in many cases.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Missed upshifts on your vehicle? P2777 Upshift Switch Circuit High can harm transmission. Scan the circuit, verify wiring, and plan module repair.<\/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-518759","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>P2777 Code Symptoms, Causes, Diagnosis &amp; Repair Costs Guide Tips - 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-p2777-upshift-switch-circuit-high\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2777 Code Symptoms, Causes, Diagnosis &amp; Repair Costs Guide Tips - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"Missed upshifts on your vehicle? P2777 Upshift Switch Circuit High can harm transmission. Scan the circuit, verify wiring, and plan module repair.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/\" \/>\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=\"2025-12-11T05:34:06+00:00\" \/>\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=\"6 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-p2777-upshift-switch-circuit-high\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2777-upshift-switch-circuit-high\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"P2777 Code Symptoms, Causes, Diagnosis &#038; Repair Costs Guide Tips\",\"datePublished\":\"2025-12-11T05:34:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2777-upshift-switch-circuit-high\\\/\"},\"wordCount\":1243,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"articleSection\":[\"Auto News\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2777-upshift-switch-circuit-high\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2777-upshift-switch-circuit-high\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2777-upshift-switch-circuit-high\\\/\",\"name\":\"P2777 Code Symptoms, Causes, Diagnosis & Repair Costs Guide Tips - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"datePublished\":\"2025-12-11T05:34:06+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2777-upshift-switch-circuit-high\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2777-upshift-switch-circuit-high\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2777-upshift-switch-circuit-high\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"P2777 Code Symptoms, Causes, Diagnosis &#038; Repair Costs Guide Tips\"}]},{\"@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":"P2777 Code Symptoms, Causes, Diagnosis & Repair Costs Guide Tips - 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-p2777-upshift-switch-circuit-high\/","og_locale":"en_US","og_type":"article","og_title":"P2777 Code Symptoms, Causes, Diagnosis & Repair Costs Guide Tips - Flagship One Blog","og_description":"Missed upshifts on your vehicle? P2777 Upshift Switch Circuit High can harm transmission. Scan the circuit, verify wiring, and plan module repair.","og_url":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/","og_site_name":"Flagship One Blog","article_publisher":"https:\/\/www.facebook.com\/flagshipone","article_author":"https:\/\/www.facebook.com\/flagshipone\/","article_published_time":"2025-12-11T05:34:06+00:00","author":"FlagshipOne","twitter_card":"summary_large_image","twitter_creator":"@theflagshipone","twitter_site":"@theflagshipone","twitter_misc":{"Written by":"FlagshipOne","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"P2777 Code Symptoms, Causes, Diagnosis &#038; Repair Costs Guide Tips","datePublished":"2025-12-11T05:34:06+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/"},"wordCount":1243,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"articleSection":["Auto News"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/","url":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/","name":"P2777 Code Symptoms, Causes, Diagnosis & Repair Costs Guide Tips - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"datePublished":"2025-12-11T05:34:06+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2777-upshift-switch-circuit-high\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"P2777 Code Symptoms, Causes, Diagnosis &#038; Repair Costs Guide Tips"}]},{"@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\/518759","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=518759"}],"version-history":[{"count":0,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/518759\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=518759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=518759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=518759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}