{"id":77250,"date":"2025-09-13T08:20:44","date_gmt":"2025-09-13T13:20:44","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77250"},"modified":"2025-09-13T08:20:44","modified_gmt":"2025-09-13T13:20:44","slug":"p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic","title":{"rendered":"P00A4 OBD2: Charge Air Cooler Temperature Sensor Circuit Intermittent\/Erratic"},"content":{"rendered":"<p>The OBD-II code P00A4 refers to an issue with the Charge Air Cooler Temperature Sensor Circuit, indicating an intermittent or erratic signal being sent to the Powertrain Control Module (PCM).<\/p>\n<h2>What Does the P00A4 Code Mean?<\/h2>\n<p>The P00A4 code is triggered when the PCM detects that the Charge Air Cooler Temperature Sensor is providing inconsistent or erratic readings. This sensor plays a crucial role in regulating the temperature of the air entering the engine, which can significantly impact performance and efficiency.<\/p>\n<h2>What Causes the P00A4 Code?<\/h2>\n<p>Several factors can lead to the P00A4 code being set, including:<\/p>\n<ul>\n<li>Charge air temperature sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues in the sensor circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P00A4 Code?<\/h2>\n<p>Common symptoms associated with the P00A4 code may include:<\/p>\n<ul>\n<li>Check Engine Light illuminated<\/li>\n<li>Reduced engine performance<\/li>\n<li>Poor fuel economy<\/li>\n<li>Unusual engine behaviors during acceleration<\/li>\n<\/ul>\n<h2>How Serious Is the P00A4 Code?<\/h2>\n<p>The P00A4 code is considered moderate in severity. While it may not lead to immediate safety issues, it is essential to address it promptly to prevent further complications that could affect the vehicle&#8217;s performance and efficiency.<\/p>\n<h2>How to Diagnose the P00A4 Code<\/h2>\n<p>Diagnosing the P00A4 code typically involves the following steps:<\/p>\n<ol>\n<li>Using an OBD-II scanner to confirm the presence of the code.<\/li>\n<li>Inspecting the Charge Air Cooler Temperature Sensor and its wiring for any visible damage or corrosion.<\/li>\n<li>Testing the sensor with a multimeter to ensure it is functioning within specifications.<\/li>\n<li>Checking the PCM for any related codes or malfunctions.<\/li>\n<\/ol>\n<h2>Common Repairs for the P00A4 Code<\/h2>\n<p>Repairs for the P00A4 code may include:<\/p>\n<ul>\n<li>Replacing the Charge Air Cooler Temperature Sensor<\/li>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Updating or reprogramming the PCM if necessary<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P00A4 Code?<\/h2>\n<p>The cost to fix the P00A4 code can vary based on the root cause of the issue and labor rates in your area. On average, repairs can range from $100 to $600, depending on whether a sensor replacement or more extensive electrical repairs are needed.<\/p>\n<h2>Can I Fix the P00A4 Code Myself?<\/h2>\n<p>If you have experience with automotive repairs and access to the necessary tools, you may be able to tackle some of the diagnostic steps or repairs yourself. However, if you are unsure or lack the tools, it&#8217;s wise to consult with a certified mechanic to avoid further complications.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The OBD-II code P00A4 refers to an issue with the Charge Air Cooler Temperature Sensor Circuit, indicating an intermittent or erratic signal being sent to the Powertrain Control Module (PCM). What Does the P00A4 Code Mean? The P00A4 code is triggered when the PCM detects that the Charge Air Cooler Temperature Sensor is providing inconsistent &hellip;<\/p>\n","protected":false},"author":26,"featured_media":95921,"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-77250","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 P00A4 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P00A4 code, what causes charge air cooler temperature sensor circuit issues, and how to diagnose and fix common problems 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\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P00A4 OBD2: Charge Air Cooler Temperature Sensor Circuit Intermittent\/Erratic\" \/>\n<meta property=\"og:description\" content=\"The OBD-II code P00A4 refers to an issue with the Charge Air Cooler Temperature Sensor Circuit, indicating an intermittent or erratic signal being sent to\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic\" \/>\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=\"2025-09-13T13:20:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.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\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P00A4 OBD2: Charge Air Cooler Temperature Sensor Circuit Intermittent\\\/Erratic\",\"datePublished\":\"2025-09-13T13:20:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic\"},\"wordCount\":422,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png\",\"articleSection\":[\"P Codes - OBD2 Powertrain Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic\",\"name\":\"OBD2 Code P00A4 \u2013 Causes, Symptoms, and Repairs\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png\",\"datePublished\":\"2025-09-13T13:20:44+00:00\",\"description\":\"Learn all about the P00A4 code, what causes charge air cooler temperature sensor circuit issues, and how to diagnose and fix common problems to maintain optimal engine performance.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#primaryimage\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png\",\"contentUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png\",\"width\":1200,\"height\":675,\"caption\":\"P00A4 OBD2: Charge Air Cooler Temperature Sensor Circuit Intermittent\\\/Erratic\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"P00A4 OBD2: Charge Air Cooler Temperature Sensor Circuit Intermittent\\\/Erratic\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\",\"name\":\"eManualOnline Blog\",\"description\":\"Free Tips on Car Service, Repair and General Stuff\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\",\"name\":\"eManualOnline\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/cdm.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/04\\\/LOGO-NEW.png\",\"contentUrl\":\"https:\\\/\\\/cdm.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/04\\\/LOGO-NEW.png\",\"width\":512,\"height\":82,\"caption\":\"eManualOnline\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/EmanualOnline\\\/\",\"https:\\\/\\\/x.com\\\/eManualOnline\",\"https:\\\/\\\/www.instagram.com\\\/emanual.online\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/emanualonline\",\"https:\\\/\\\/www.pinterest.com\\\/emanualonline\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\",\"name\":\"JC Landry\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"contentUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"caption\":\"JC Landry\"},\"description\":\"JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of\u00a0TheMechanicDoctor.com, only to name a few. 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\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"OBD2 Code P00A4 \u2013 Causes, Symptoms, and Repairs","description":"Learn all about the P00A4 code, what causes charge air cooler temperature sensor circuit issues, and how to diagnose and fix common problems to maintain optimal engine performance.","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.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic","og_locale":"en_US","og_type":"article","og_title":"P00A4 OBD2: Charge Air Cooler Temperature Sensor Circuit Intermittent\/Erratic","og_description":"The OBD-II code P00A4 refers to an issue with the Charge Air Cooler Temperature Sensor Circuit, indicating an intermittent or erratic signal being sent to","og_url":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic","og_site_name":"eManualOnline Blog","article_publisher":"https:\/\/www.facebook.com\/EmanualOnline\/","article_author":"https:\/\/www.facebook.com\/jee514","article_published_time":"2025-09-13T13:20:44+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png","type":"image\/png"}],"author":"JC Landry","twitter_card":"summary_large_image","twitter_creator":"@eManualOnline","twitter_site":"@eManualOnline","twitter_misc":{"Written by":"JC Landry","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#article","isPartOf":{"@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic"},"author":{"name":"JC Landry","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403"},"headline":"P00A4 OBD2: Charge Air Cooler Temperature Sensor Circuit Intermittent\/Erratic","datePublished":"2025-09-13T13:20:44+00:00","mainEntityOfPage":{"@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic"},"wordCount":422,"commentCount":0,"publisher":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#primaryimage"},"thumbnailUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png","articleSection":["P Codes - OBD2 Powertrain Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#respond"]}],"copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"}},{"@type":"WebPage","@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic","url":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic","name":"OBD2 Code P00A4 \u2013 Causes, Symptoms, and Repairs","isPartOf":{"@id":"https:\/\/www.emanualonline.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#primaryimage"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#primaryimage"},"thumbnailUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png","datePublished":"2025-09-13T13:20:44+00:00","description":"Learn all about the P00A4 code, what causes charge air cooler temperature sensor circuit issues, and how to diagnose and fix common problems to maintain optimal engine performance.","breadcrumb":{"@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#primaryimage","url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png","contentUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png","width":1200,"height":675,"caption":"P00A4 OBD2: Charge Air Cooler Temperature Sensor Circuit Intermittent\/Erratic"},{"@type":"BreadcrumbList","@id":"https:\/\/www.emanualonline.com\/blog\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittent-erratic#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.emanualonline.com\/blog\/"},{"@type":"ListItem","position":2,"name":"P00A4 OBD2: Charge Air Cooler Temperature Sensor Circuit Intermittent\/Erratic"}]},{"@type":"WebSite","@id":"https:\/\/www.emanualonline.com\/blog\/#website","url":"https:\/\/www.emanualonline.com\/blog\/","name":"eManualOnline Blog","description":"Free Tips on Car Service, Repair and General Stuff","publisher":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.emanualonline.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.emanualonline.com\/blog\/#organization","name":"eManualOnline","url":"https:\/\/www.emanualonline.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/cdm.emanualonline.com\/blog\/wp-content\/uploads\/2021\/04\/LOGO-NEW.png","contentUrl":"https:\/\/cdm.emanualonline.com\/blog\/wp-content\/uploads\/2021\/04\/LOGO-NEW.png","width":512,"height":82,"caption":"eManualOnline"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/EmanualOnline\/","https:\/\/x.com\/eManualOnline","https:\/\/www.instagram.com\/emanual.online\/","https:\/\/www.linkedin.com\/company\/emanualonline","https:\/\/www.pinterest.com\/emanualonline\/"]},{"@type":"Person","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403","name":"JC Landry","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","contentUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","caption":"JC Landry"},"description":"JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of\u00a0TheMechanicDoctor.com, only to name a few. 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\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p00a4-obd2-charge-air-cooler-temperature-sensor-circuit-intermittenterratic-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 OBD-II code P00A4 refers to an issue with the Charge Air Cooler Temperature Sensor Circuit, indicating an intermittent or erratic signal being sent to the Powertrain Control Module (PCM). What Does the P00A4 Code Mean? The P00A4 code is triggered when the PCM detects that the Charge Air Cooler Temperature Sensor is providing inconsistent&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77250","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=77250"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77250\/revisions"}],"predecessor-version":[{"id":83949,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77250\/revisions\/83949"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/95921"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}