{"id":16633,"date":"2022-03-16T00:45:00","date_gmt":"2022-03-16T07:45:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=16633"},"modified":"2024-06-05T19:30:37","modified_gmt":"2024-06-06T02:30:37","slug":"p0056-code-ho2s-heater-control-circuit-bank-2-sensor-2","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0056-code-ho2s-heater-control-circuit-bank-2-sensor-2\/","title":{"rendered":"P0056 Code: HO2S Heater Control Circuit Bank 2 Sensor 2"},"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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_744cae-61 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_744cae-61 > .kt-inside-inner-col,.kadence-column_744cae-61 > .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_744cae-61 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_744cae-61 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_744cae-61 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_744cae-61 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_744cae-61{position:relative;}@media all and (max-width: 1024px){.kadence-column_744cae-61 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_744cae-61 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_744cae-61 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-c036f7  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-32cce8\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_0492af-5f, .wp-block-kadence-advancedheading.kt-adv-heading_0492af-5f[data-kb-block=\"kb-adv-heading_0492af-5f\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_0492af-5f mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_0492af-5f[data-kb-block=\"kb-adv-heading_0492af-5f\"] 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_0492af-5f img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_0492af-5f[data-kb-block=\"kb-adv-heading_0492af-5f\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_0492af-5f summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_0492af-5f\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The P0056 code stands for &ldquo;HO2S Heater Control Circuit Bank 2 Sensor 2,&rdquo; which means the powertrain control module (PCM) detects a possible issue with the heater control circuit of oxygen sensor 2 on Bank 2.<\/li><li>Some of the possible causes of the P0056 code include a broken oxygen sensor, circuit issues, and a faulty PCM.<\/li><li>An illuminated check engine light and decreased fuel efficiency are some common symptoms of the P0056 code.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">If you&rsquo;re having trouble figuring out what code P0056 means and how to resolve it, read on to learn its definition, possible triggers, and common symptoms.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0056 Code Mean?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Diagnostic trouble code (DTC) P0056 stands for &ldquo;HO2S Heater Control Circuit Bank 2 Sensor 2.&rdquo; It is logged when 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) detects a possible issue with the heater control circuit of oxygen sensor 2 on Bank 2. <\/p>\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<p class=\"wp-block-paragraph\">Bank 2 is the side of the engine that does not contain the #1 cylinder. The <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensor\">oxygen sensor<\/a> 2 located on this bank is also known as the downstream oxygen sensor because it is located after the catalytic converter. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The PCM determines the oxygen content of the <a href=\"https:\/\/www.carparts.com\/exhaust-manifold\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"exhaust\">exhaust<\/a>through heated oxygen sensors in the exhaust system before and after the <a href=\"https:\/\/www.carparts.com\/catalytic-converter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converter\">catalytic converter<\/a>(s). The data provided by the oxygen sensors helps the PCM maintain the <a href=\"https:\/\/www.carparts.com\/blog\/what-is-a-good-air-fuel-ratio-chart-included\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"right air-to-fuel ratio\">right air-to-fuel ratio<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When the PCM detects a possible issue with the heater control circuit on oxygen sensor 2 on Bank 2, it logs code P0056. The code may also be set if the PCM perceives that the oxygen sensor is not heating up properly or if the heater wire is malfunctioning. Depending on the severity, other trouble codes may also be logged, such as P0030 and P0036.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you need help locating the oxygen sensor that may be faulty, read our brief guide about <a href=\"https:\/\/www.carparts.com\/blog\/p0141-code-oxygen-sensor-heater-circuit-malfunction-bank-1-sensor-2\/#Bank_1_vs_Bank_2\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"bank 1 vs bank 2\">bank 1 vs bank 2<\/a>. You can also find more information that can help you troubleshoot P0056 on your own in our discussion about <a href=\"https:\/\/www.carparts.com\/blog\/p0141-code-oxygen-sensor-heater-circuit-malfunction-bank-1-sensor-2\/#Why_Do_Oxygen_Sensors_Need_Heat\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"why oxygen sensors need heat\">why oxygen sensors need heat<\/a>.<\/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\/2020\/09\/oxygen-sensor-3a-1024x1024.jpg\" alt=\"oxygen sensor 3a\" class=\"wp-image-16639\" width=\"1024\" height=\"1024\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-3a-1024x1024.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-3a-300x300.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-3a-768x768.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-3a-75x75.jpg 75w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-3a-600x600.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-3a-928x928.jpg 928w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-3a-150x150.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-3a.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption> The data provided by the oxygen sensors helps the PCM maintain the right air-to-fuel ratio. <\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>Note<\/strong>: The definition of code P0056 may 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 Possible Causes of the P0056 Code?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">P0056 is a generic code, so it can have several triggers. Here are the most common:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Circuit issues <\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/bad-o2-sensor-symptoms-causes-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Broken oxygen sensor\">Broken oxygen sensor<\/a><\/li><li>Failure in the PCM<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0056 Code?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">You may notice the following symptoms if you drive a car that has a logged P0056 error code:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Check engine light is illuminated\">Check engine light is illuminated<\/a><\/li><li>Decreased fuel efficiency<\/li><\/ul>\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\/2020\/09\/mechanic-inspecting-oxygen-sensora-1024x683.jpeg\" alt=\"mechanic inspecting oxygen sensora\" class=\"wp-image-16640\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-inspecting-oxygen-sensora-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-inspecting-oxygen-sensora-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-inspecting-oxygen-sensora-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-inspecting-oxygen-sensora-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-inspecting-oxygen-sensora-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/mechanic-inspecting-oxygen-sensora.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption> If you are not confident with your automotive know-how and repair skills, it&rsquo;s best to leave the job to a mechanic.  <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0056 Code<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>Tip from Richard McCuistian, ASE Certified Master Automobile Technician<\/strong>: You can get an old O2 sensor connector that came from a vehicle like the one you&rsquo;re working on and connect a tail light bulb to the two wires that are the same color on the connector (white, brown, black, etc.). These two same-color wires are the wires that feed the heater. When you start the truck with this homemade tool plugged into the harness in place of the suspect sensor, the light should come on. If it doesn&rsquo;t find out why. Don&rsquo;t neglect to check fuses.<\/em><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>You can get an old O2 sensor connector that came from a vehicle like the one you&rsquo;re working on and connect a tail light bulb to the two wires that are the same color on the connector (white, brown, black, etc.). These two same-color wires are the wires that feed the heater.<\/p><cite><strong>&ndash;<\/strong><a href=\"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"&lt;strong&gt;Richard McCuistian, ASE Certified Master Automobile Technician&lt;\/strong&gt;\"><strong>Richard McCuistian, ASE Certified Master Automobile Technician<\/strong><\/a><\/cite><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">To ensure your engine continues performing well, code P0056 should be resolved immediately. However, diagnosing this code can be tricky as it has a number of potential causes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Keep in mind that the diagnostic and repair steps of this code depend on the specifications of your vehicle. A P0056 code on a <a href=\"https:\/\/www.carparts.com\/chevrolet\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Chevy\">Chevy<\/a>may require a different diagnosis process from a P0056 on a <a href=\"https:\/\/www.carparts.com\/bmw\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"BMW\">BMW<\/a>. If you&rsquo;re not confident in your automotive know-how and repair skills, leaving the diagnosis to an expert is the best course of action. However, if you&rsquo;d like to see what the diagnostic process might entail, you can check out the video below:<\/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=\"O2 Sensor Heater Quick-Fix\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/fBQ-1pqSoXM?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 P0056 Code<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Like most <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD-II codes\">OBD-II codes<\/a>, P0056 shares similar triggers and symptoms with other error codes. However, that does not mean that it also shares their solutions. The diagnostic and repair procedures of DTCs vary depending on the vehicle&rsquo;s year, make, and model. If you are not confident with your automotive know-how and repair skills, it&rsquo;s best to leave the job to a mechanic.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, if you&rsquo;re considering troubleshooting this code on your own, make sure your automotive knowledge is up to date before attempting any fixes. Refer to a <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"repair manual or an online repair database\">repair manual or an online repair database<\/a> to learn how to resolve code P0056.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Buy a New Oxygen Sensor for Your Vehicle<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If your scan tool reads a P0056 code, identify what&rsquo;s causing the issue. If there are no circuit problems and the PCM is working as it should, you might need to replace the oxygen sensor 2 in bank 2. Luckily, it&rsquo;s easy to get an <a href=\"https:\/\/www.carparts.com\/search?q=oxygen_sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensor replacement\">oxygen sensor replacement<\/a> with the help of <a href=\"http:\/\/carparts.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We have a wide selection of premium oxygen sensors sourced from top brands in the industry. They&rsquo;re all tested during manufacturing, so you can be sure they pass industry standards in terms of quality and functionality.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To start shopping, all you have to do is go to our website and look for our vehicle selector tool. Input your ride&rsquo;s details to allow our system to narrow down your search to the parts that fit your ride. If you need help, don&rsquo;t hesitate to contact our toll-free hotline. Our friendly customer service representatives are ready to assist you anytime.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Check out our selection now and order your oxygen sensor today!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Product Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\"> \n\n  \n\n    <!-- start of editable content --> \n\n    <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" aria-label=\"oxygen sensor\" rel=\"noopener\"> \n\n        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/reph960923_1\" alt=\"oxygen sensor\"> \n\n<strong>Oxygen Sensor<\/strong> \n\n    <\/a> \n\n    <a href=\"https:\/\/www.carparts.com\/catalytic-converter\" target=\"_blank\" aria-label=\"catalytic converter\" rel=\"noopener\"> \n\n        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/repf960330_1\" alt=\"catalytic converter\"> \n\n<strong>Catalytic Converter<\/strong> \n\n    <\/a> \n\n\n     <!-- end of editable content --> \n\n  \n\n<\/div>\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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>If you&rsquo;re having trouble figuring out what code P0056 means and how to resolve it, read on to learn its&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0056-code-ho2s-heater-control-circuit-bank-2-sensor-2\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":16638,"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":[1190],"ppma_author":[2607,2985],"class_list":["post-16633","post","type-post","status-publish","format-standard","has-post-thumbnail","category-obd-ii-trouble-codes","tag-oxygen-sensor-2","entry"],"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0056 Code: HO2S Heater Control Circuit Bank 2 Sensor 2 - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Learn all about what code P0056 means, its triggers, symptoms, and what you can do to resolve this trouble code with this brief guide.\" \/>\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\/p0056-code-ho2s-heater-control-circuit-bank-2-sensor-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0056 Code: HO2S Heater Control Circuit Bank 2 Sensor 2 - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Learn all about what code P0056 means, its triggers, symptoms, and what you can do to resolve this trouble code with this brief guide.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0056-code-ho2s-heater-control-circuit-bank-2-sensor-2\/\" \/>\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=\"2022-03-16T07:45:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-06-06T02:30:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/two-oxygen-sensors-2a.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1500\" \/>\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=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0056-code-ho2s-heater-control-circuit-bank-2-sensor-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0056-code-ho2s-heater-control-circuit-bank-2-sensor-2\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"sameAs\":\"https:\\\/\\\/www.facebook.com\\\/carpartscom, https:\\\/\\\/twitter.com\\\/CarPartscom, https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/, https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\"},{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"Richard McCuistian\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. 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Richard has worked for nearly 50 years in the automotive field as a professional technician, an instructor, a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others (published every year since May 2000). He has developed training courses and written or edited training material for companies in the U.S. Canada, and the Netherlands, and even Bulgaria. He maintained an \u201cask a mechanic\u201d website for 10 years answering questions emailed to him from all over the world.\r\n\r\nRichard has an instructional automotive YouTube channel \u201cMcCuistian\u201d with 13,500 subscribers and over 1,300 videos. Much of his professional work requires photography and videography in shop environments, but Richard also enjoys taking pictures of landscapes, skyscapes, old barns and houses, small towns. He has produced a coffee table book of digital watercolors called \u201cMemories of South Alabama\u201d created from his personal photos, along with a dozen Christian fiction short original novels and a collection of short stories, all available in Kindle or softcover format. Richard has written a 2,500-word Bible study every week for the past 20 years and uses it to teach a small group at his church every Sunday morning.\r\n\r\n<strong>Credentials:<\/strong>\r\n\r\n<ul class=\"author-list\">\r\n<li><p>ASE Certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.<\/p><\/li>\r\n<li><p>Professional Mechanic\/Technician for 25 years with experience on diesel and gasoline engines, vehicles and equipment (including hydraulics).<\/p><\/li>\r\n<li><p>Spent 5 years in fleet maintenance, 20 years in independent shops and dealerships (VW, Mazda, Renault, Jeep, Ford, Lincoln), specializing in driveability and electronics for the last 14 years of his career at the same dealership.<\/p><\/li>\r\n<li><p>Senior Contributing Editor at Motor Age Magazine, first published in Motor Age in May of 2000 and every year since. He has won two International Automotive Media Awards for technical articles published in trade magazines.<\/p><\/li>\r\n<li><p>Has attended hundreds of hours of automotive training from OEMs including GM, Volkswagen, Mazda, Renault, Jeep, Chrysler, as well as additional training at events like KC Vision and MACS (Mobile Air Climate Systems Association).<\/p><\/li>\r\n<li><p>Taught college level auto mechanics for 19 years.<\/p><\/li>\r\n<li><p>Has written for automotive training companies (including course development work for training companies in Canada and the Netherlands) and has been hired to teach professional trade show technician courses at multiple training events in Texas and Alabama.<\/p><\/li>\r\n<li><p>While still teaching at the college level, Richard launched a new automotive program in Geneva, Alabama, setting up a dual enrollment department in a new building, organizing the shop and classroom, teaching morning classes to high school students for 2 years while still teaching at the college in the afternoon.<\/p><\/li>\r\n<li><p>Richard\u2019s college program at Lurleen B. 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