{"id":78394,"date":"2025-08-14T13:48:54","date_gmt":"2025-08-14T18:48:54","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=78394"},"modified":"2025-08-14T13:48:54","modified_gmt":"2025-08-14T18:48:54","slug":"p0886-obd2-tcm-power-relay-control-circuit-low","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0886-obd2-tcm-power-relay-control-circuit-low","title":{"rendered":"P0886 OBD2: TCM Power Relay Control Circuit Low"},"content":{"rendered":"<p>The P0886 OBD-II code is indicative of an issue within the Transmission Control Module (TCM) power relay control circuit. This code suggests that the TCM is not receiving the appropriate voltage required for proper operation, which can lead to malfunctions in the transmission system.<\/p>\n<h2>What Does the P0886 Code Mean?<\/h2>\n<p>The P0886 code is set when the Transmission Control Module (TCM) detects a low voltage condition in its power relay control circuit. This situation may prevent the transmission from shifting properly, affecting overall vehicle performance.<\/p>\n<h2>What Causes the P0886 Code?<\/h2>\n<p>Several issues can trigger the P0886 code, including:<\/p>\n<ul>\n<li>Failure of the Transmission Control Module (TCM)<\/li>\n<li>Failure of the TCM relay<\/li>\n<li>Wiring issues, such as shorts or corrosion<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0886 Code?<\/h2>\n<p>The symptoms associated with the P0886 code may include:<\/p>\n<ul>\n<li>Transmission may not shift properly<\/li>\n<li>Increased fuel consumption<\/li>\n<\/ul>\n<h2>How Serious Is the P0886 Code?<\/h2>\n<p>The severity of the P0886 code is classified as moderate. While it may not pose an immediate threat to vehicle safety, it is crucial to address the issue promptly to avoid further complications that could affect the vehicle&#8217;s operation.<\/p>\n<h2>How to Diagnose the P0886 Code<\/h2>\n<p>To diagnose the P0886 code, a qualified technician will typically follow these steps:<\/p>\n<ul>\n<li>Use an OBD-II scanner to confirm the presence of the P0886 code.<\/li>\n<li>Inspect the wiring and connectors associated with the TCM and its relay for any visible damage.<\/li>\n<li>Test the voltage at the TCM to ensure it is receiving the correct power.<\/li>\n<li>Check the functionality of the TCM and relay.<\/li>\n<\/ul>\n<h2>Common Repairs for the P0886 Code<\/h2>\n<p>Common repairs for the P0886 code may include:<\/p>\n<ul>\n<li>Replacing the Transmission Control Module (TCM)<\/li>\n<li>Replacing the TCM relay<\/li>\n<li>Repairing or replacing damaged wiring and connectors<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0886 Code?<\/h2>\n<p>The cost to fix the P0886 code can vary widely depending on the underlying cause. On average, repairs may range from $100 to $1,500. This includes costs associated with diagnostic services, replacement parts, and labor.<\/p>\n<h2>Can I Fix the P0886 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may be able to address minor wiring issues or replace the relay, diagnosing and fixing the root cause of the P0886 code typically requires specialized equipment and expertise. It is recommended to consult with a professional mechanic to ensure proper diagnosis and repair.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0886 OBD-II code is indicative of an issue within the Transmission Control Module (TCM) power relay control circuit. This code suggests that the TCM is not receiving the appropriate voltage required for proper operation, which can lead to malfunctions in the transmission system. What Does the P0886 Code Mean? The P0886 code is set &hellip;<\/p>\n","protected":false},"author":26,"featured_media":92725,"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-78394","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 P0886 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0886 code, what causes TCM power relay control circuit low, 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\/p0886-obd2-tcm-power-relay-control-circuit-low\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0886 OBD2: TCM Power Relay Control Circuit Low\" \/>\n<meta property=\"og:description\" content=\"The P0886 OBD-II code is indicative of an issue within the Transmission Control Module (TCM) power relay control circuit. This code suggests that the TCM\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0886-obd2-tcm-power-relay-control-circuit-low\" \/>\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=\"2025-08-14T18:48:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0886-obd2-tcm-power-relay-control-circuit-low.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\/p0886-obd2-tcm-power-relay-control-circuit-low#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p0886-obd2-tcm-power-relay-control-circuit-low\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P0886 OBD2: TCM Power Relay Control Circuit Low\",\"datePublished\":\"2025-08-14T18:48:54+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p0886-obd2-tcm-power-relay-control-circuit-low\"},\"wordCount\":393,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p0886-obd2-tcm-power-relay-control-circuit-low#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0886-obd2-tcm-power-relay-control-circuit-low.png\",\"articleSection\":[\"P Codes - 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This code suggests that the TCM is not receiving the appropriate voltage required for proper operation, which can lead to malfunctions in the transmission system. What Does the P0886 Code Mean? The P0886 code is set&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78394","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=78394"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78394\/revisions"}],"predecessor-version":[{"id":85093,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78394\/revisions\/85093"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/92725"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=78394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=78394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=78394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}