{"id":77566,"date":"2022-11-06T17:32:54","date_gmt":"2022-11-07T01:32:54","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=77566"},"modified":"2023-09-19T01:21:20","modified_gmt":"2023-09-19T08:21:20","slug":"p2254-code-o2-sensor-negative-current-control-circuit-open-bank-2-sensor-1","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2254-code-o2-sensor-negative-current-control-circuit-open-bank-2-sensor-1\/","title":{"rendered":"P2254 Code: O2 Sensor Negative Current Control Circuit\/\u00a0 Open Bank 2 Sensor 1"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_612f08-32 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_612f08-32 > .kt-inside-inner-col,.kadence-column_612f08-32 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_612f08-32 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_612f08-32 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_612f08-32 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_612f08-32 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_612f08-32{position:relative;}@media all and (max-width: 1024px){.kadence-column_612f08-32 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_612f08-32 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_612f08-32 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-1e9d19  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-19dc9d\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_f60830-7b, .wp-block-kadence-advancedheading.kt-adv-heading_f60830-7b[data-kb-block=\"kb-adv-heading_f60830-7b\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_f60830-7b mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_f60830-7b[data-kb-block=\"kb-adv-heading_f60830-7b\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading_f60830-7b img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_f60830-7b[data-kb-block=\"kb-adv-heading_f60830-7b\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_f60830-7b summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_f60830-7b\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Diagnostic trouble code (DTC) P2254 is defined as &ldquo;O2 Sensor Negative Current Control Circuit\/ Open Bank 2 Sensor 1.&rdquo;<\/li><li>If the powertrain control module (PCM) detects a level of voltage from an oxygen (O2) sensor that does not correspond to acceptable parameters, the P2254 code is stored.<\/li><li>The common causes of the P2254 code include malfunctioning O2 sensors, faulty wiring or connectors, and a faulty PCM.<\/li><li>If the P2254 code is triggered, your vehicle can show symptoms like decreased fuel economy, decreased engine performance, and an illuminated check engine light.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Most modern vehicles have two or more <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensors\">oxygen sensors<\/a>. There are sensors housed in the vehicle&rsquo;s exhaust system, where they are subjected to high operating temperatures and may become contaminated.<\/p>\n\n\n\n<p>P2254 is an error code related to a fault in one of your oxygen sensor&rsquo;s control circuits. Learn more about it through this article.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2254 Sensor Mean?<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Diagnostic trouble code\">Diagnostic trouble code<\/a> (DTC) P2254 stands for &ldquo;O2 Sensor Negative Current Control Circuit\/ Open Bank 2 Sensor 1.&rdquo;<\/p>\n\n\n\n<p>A stored code P2254 indicates that the <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"powertrain control module\">powertrain control module<\/a> (PCM) has detected a negative current discrepancy in engine bank number two&rsquo;s upstream oxygen (O2) sensor. Bank two is the engine bank without the number one cylinder. Sensor 1 is the downstream (pre-cat) sensor. A ground circuit is used in the negative current control circuit.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-traces-exhaust-gas-stream-path-1024x682.jpg\" alt=\"mechanic traces exhaust gas stream path\" class=\"wp-image-77570\" width=\"1024\" height=\"682\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-traces-exhaust-gas-stream-path-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-traces-exhaust-gas-stream-path-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-traces-exhaust-gas-stream-path-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-traces-exhaust-gas-stream-path-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-traces-exhaust-gas-stream-path-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-traces-exhaust-gas-stream-path-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-traces-exhaust-gas-stream-path-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-traces-exhaust-gas-stream-path.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Oxygen sensors are usually located right in the path of the exhaust gas stream.<\/figcaption><\/figure>\n\n\n\n<p>Oxygen sensors are usually located right in the path of the exhaust gas stream. These sensors monitor oxygen levels in both the exhaust stream and ambient air. The PCM uses data from heated oxygen sensors to monitor exhaust oxygen content for each engine bank as well as catalytic converter efficiency (HO2S). Data from the O2 sensors is communicated to the PCM using voltage signals.<\/p>\n\n\n\n<p>If the PCM detects a level of voltage that does not correspond to acceptable parameters, a P2254 is stored.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P2254 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition<\/em>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Causes of the P2254 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/bad-o2-sensor-symptoms-causes-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Malfunctioning O2 sensors\">Malfunctioning O2 sensors<\/a><\/li><li>Wiring and\/or connector issues<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty PCM\/ PCM software update needed\">Faulty PCM\/ PCM software update needed<\/a><\/li><\/ul>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P2254 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Poor fuel economy<\/li><li>Decreased engine performance<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Illuminated check engine light\">Illuminated check engine light<\/a><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose a P2254 Code<\/h2>\n\n\n\n<p>P2254 can be logged on any vehicle equipped with an on-board diagnostic system. However, this doesn&rsquo;t mean that there&rsquo;s one diagnostic procedure that&rsquo;ll work for all makes and models. Vehicles can be structured differently depending on their manufacturer. If you don&rsquo;t have the technical know-how to get the job done, it&rsquo;s best to leave the job to a trusted mechanic.<\/p>\n\n\n\n<p>Here&rsquo;s a video of what the diagnostic process might involve:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"2008 Honda Odyssey Replace O2 A\/F Sensor Change Repair Codes P0154 P2254 w\/ ATK Part Number\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/HY-Ru4FJ050?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P2254 Code<\/h2>\n\n\n\n<p>P2254 is a tricky code. You&rsquo;ll have to have the right tools and knowledge of O2 sensors to fix the issue correctly. You can always go to an auto repair shop and have a certified mechanic clear it for you. If you prefer to get your hands dirty and fix the issue yourself, it&rsquo;s a good idea to review the appropriate repair manual or refer to an online repair database for vehicle-specific repair information.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Most modern vehicles have two or more oxygen sensors. There are sensors housed in the vehicle&rsquo;s exhaust system, where they&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2254-code-o2-sensor-negative-current-control-circuit-open-bank-2-sensor-1\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":77571,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1314],"tags":[1323,1190],"ppma_author":[2607,2855],"class_list":{"0":"post-77566","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-engine-control-module-2","9":"tag-oxygen-sensor-2","10":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P2254 Code: O2 Sensor Negative Current Control Circuit\/\u00a0 Open Bank 2 Sensor 1 - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Read on to find out what a P2254 code means and what could happen to your vehicle if you leave it unresolved.\" \/>\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.carparts.com\/blog\/p2254-code-o2-sensor-negative-current-control-circuit-open-bank-2-sensor-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2254 Code: O2 Sensor Negative Current Control Circuit\/\u00a0 Open Bank 2 Sensor 1 - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Read on to find out what a P2254 code means and what could happen to your vehicle if you leave it unresolved.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p2254-code-o2-sensor-negative-current-control-circuit-open-bank-2-sensor-1\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-07T01:32:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-19T08:21:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/mechanic-searches-for-oxygen-sensor-upstream.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1333\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2254-code-o2-sensor-negative-current-control-circuit-open-bank-2-sensor-1\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2254-code-o2-sensor-negative-current-control-circuit-open-bank-2-sensor-1\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. 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