{"id":18686,"date":"2022-08-05T00:36:00","date_gmt":"2022-08-05T07:36:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=18686"},"modified":"2026-02-17T22:54:21","modified_gmt":"2026-02-18T06:54:21","slug":"p0147-code-o2-sensor-heater-circuit-bank-1-sensor-3","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0147-code-o2-sensor-heater-circuit-bank-1-sensor-3\/","title":{"rendered":"P0147 Code: O2 Sensor Heater Circuit (Bank 1 Sensor 3)"},"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-column18686_f0309e-53 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column18686_f0309e-53 > .kt-inside-inner-col,.kadence-column18686_f0309e-53 > .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-column18686_f0309e-53 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column18686_f0309e-53 > .kt-inside-inner-col{flex-direction:column;}.kadence-column18686_f0309e-53 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column18686_f0309e-53 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column18686_f0309e-53{position:relative;}@media all and (max-width: 1024px){.kadence-column18686_f0309e-53 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column18686_f0309e-53 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column18686_f0309e-53 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-2336b8  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-2be1bf\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading18686_a3586d-a5, .wp-block-kadence-advancedheading.kt-adv-heading18686_a3586d-a5[data-kb-block=\"kb-adv-heading18686_a3586d-a5\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading18686_a3586d-a5 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading18686_a3586d-a5[data-kb-block=\"kb-adv-heading18686_a3586d-a5\"] 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-heading18686_a3586d-a5 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading18686_a3586d-a5[data-kb-block=\"kb-adv-heading18686_a3586d-a5\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading18686_a3586d-a5 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading18686_a3586d-a5\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The diagnostic trouble code (DTC) P0147 stands for &ldquo;O2 Sensor Heater Circuit (Bank 1 Sensor 3).&rdquo;<\/li>\n\n\n\n<li>Your vehicle&rsquo;s powertrain control module (PCM) will log the P0147 code when it detects that the oxygen sensor #3 on engine bank 1 takes too long to reach operating temperatures.<\/li>\n\n\n\n<li>The PCM can also log the P0147 code if it detects a potential problem with the oxygen sensor #3 heater or its circuit.<\/li>\n\n\n\n<li>Common causes of the P0147 code are a faulty O2 sensor, defective heater circuit, and wiring issues.<\/li>\n\n\n\n<li>A vehicle with a P0147 code can have an illuminated check engine light, although some cases show no visible symptoms.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>If your scan tool shows a stored P0147 code, this article should help you figure out where to start. Some engines will have two upstream sensors (one for each bank) and only one downstream sensor (where there&rsquo;s a single light-off catalyst serving both banks). That third sensor is the focus of this particular code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0147 Code 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) P0147 stands for &ldquo;O2 Sensor Heater Circuit Bank 1, Sensor 3.&rdquo; It is set when the powertrain control module (PCM) perceives the oxygen sensors to be taking longer than usual to reach operating temperatures. The code may also be logged if the PCM detects a potential problem with the oxygen sensor heater or its circuit.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/obd-code-p0147-1024x683.jpeg\" alt=\"a car's oxygen sensor\" class=\"wp-image-18688\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/obd-code-p0147-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/obd-code-p0147-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/obd-code-p0147-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/obd-code-p0147-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/obd-code-p0147-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/obd-code-p0147.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Code P0147 may be set if the PCM perceives the oxygen sensors to be taking longer than usual to reach operating temperatures. <\/figcaption><\/figure>\n\n\n\n<p>&ldquo;Bank 1&rdquo; refers to the side of the engine that contains cylinder #1. &ldquo;Sensor 3&rdquo; refers to the downstream oxygen sensor located at the rear of the catalytic converter.<\/p>\n\n\n\n<p>The oxygen sensor needs to be at a high temperature to produce a voltage. It uses a heater to swiftly reach the right operating temperature and maintain this condition during idle. As the sensor reaches the optimal temperature, the PCM monitors the voltage as well as the signal voltage for closed-loop fuel control.<\/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>During regular closed-loop fuel control operation, the PCM will add fuel to enrich the mixture when the oxygen sensor detects a lean condition in the exhaust. The PCM will reduce fuel or &ldquo;lean-out&rdquo; the mixture when the sensor detects a rich exhaust condition. The downstream oxygen sensor may also be used to monitor the efficiency of the <a href=\"https:\/\/www.carparts.com\/catalytic-converter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converter\">catalytic converter<\/a>.<\/p>\n\n\n\n<p>The oxygen content of the exhaust indicates whether the engine has gone lean or rich. When the oxygen sensor detects that the engine is running rich, the signal voltage is high. If the engine is lean, the signal voltage decreases.<\/p>\n\n\n\n<p>This fluctuation of predetermined voltage is sometimes referred to as activity or switching. It can be monitored with the oxygen sensor signal voltage.<\/p>\n\n\n\n<p>The PCM determines if the oxygen sensor heater or its circuit is functioning properly. The P0147 code is logged when the PCM detects an issue with the performance of the oxygen sensor heater.<\/p>\n\n\n\n<p>You can find more information that can help you execute proper DIY diagnosis and troubleshooting of P0147 in our technical discussion about the <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=\"heating process of oxygen sensors\">heating process of oxygen sensors<\/a>.<\/p>\n\n\n\n<p><em><strong>Note:<\/strong> The definition of code P0147 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 P0147 Code?<\/h2>\n\n\n\n<p>P0147 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\">\n<li><a href=\"https:\/\/www.carparts.com\/blog\/bad-o2-sensor-symptoms-causes-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty O2 sensor\">Faulty O2 sensor<\/a><\/li>\n\n\n\n<li>Defective heater circuit<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Wiring issues\">Wiring issues<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0147 Code?<\/h2>\n\n\n\n<p>You may notice the following symptoms if you drive a vehicle with a logged P0147:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<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>\n\n\n\n<li>In some cases, there may be no other notable symptoms<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/p0147-cause-1024x683.jpeg\" alt=\"bad oxygen sensor\" class=\"wp-image-18698\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/p0147-cause-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/p0147-cause-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/p0147-cause-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/p0147-cause-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/p0147-cause-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/p0147-cause.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">A faulty oxygen sensor can trigger code P0147.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0147 Code<\/h2>\n\n\n\n<p>For a quick and fairly easy DIY test for P0147, if you have an old O2 sensor that fits your vehicle, you can cut the wires off the sensor and connect a tail light bulb to the heater wires; those will be two of the four wires that are the same color. They&rsquo;ll be a different color from the other two wires, which are signal and signal ground for the sensor.<\/p>\n\n\n\n<p>Once you&rsquo;ve created that tool, you can connect it to the wire harness so that if the heater is receiving voltage from the ECM\/PCM, the bulb will light. Typically, the heater will begin to receive voltage as soon as the key is turned to the &ldquo;on&rdquo; position, even before the engine is started.<\/p>\n\n\n\n<p>If you don&rsquo;t see the light illuminate, you&rsquo;ll need to check fuses and circuits visually to see what you can see. But don&rsquo;t replace the ECM\/PCM for this; usually, it&rsquo;s wiring or connectors. But if the light does illuminate, remove the O2 sensor and check the resistance of the heater. It should be around 6 ohms or so. The heaters do fail open sometimes and that&rsquo;s the most common cause of this code.<\/p>\n\n\n\n<p>Take note that to avoid the possibility of engine damage, code P0147 should be resolved immediately. However, it may be difficult to diagnose this code because there are many possible triggers associated with it.<\/p>\n\n\n\n<p>Keep in mind that the diagnostic and repair steps for this code should depend on the specifications of your vehicle. As all cars are built differently, they may require vehicle-specific diagnostic processes. Always <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"refer to a repair manual\">refer to a repair manual<\/a> before attempting anything. <\/p>\n\n\n\n<p>If you&rsquo;re still unsure of how to proceed after reading the repair manual, it might be best to leave the diagnosis to a technician.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0147 Code<\/h2>\n\n\n\n<p>Code P0147 may be set in vehicles of varying makes and models. Therefore, you should refer to the factory repair information specific to your vehicle before DIY-ing any repairs. If you aren&rsquo;t confident in your auto repair skills, it may be best to leave the job to a professional.<\/p>\n\n\n\n<p>However, if you&rsquo;re set on resolving this code on your own, make sure your automotive knowledge is up to date. Refer to a repair manual or an <a href=\"https:\/\/www.carparts.com\/blog\/best-online-resources-to-help-you-learn-how-to-fix-cars\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"online repair database\">online repair database<\/a> to learn how to resolve code P0147.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get a New O2 Sensor for Your Vehicle<\/h2>\n\n\n\n<p>As mentioned, the P0147 might not show symptoms other than an illuminated check engine light. However, you should still look for the cause and take action. Consider taking your vehicle to a mechanic who can determine what triggered this trouble code. If it&rsquo;s a faulty <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"O2 sensor\">O2 sensor<\/a>, you can shop for a high-quality replacement without any hassle at <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a>.<\/p>\n\n\n\n<p>We have on-hand and ready-to-ship oxygen sensors from a warehouse near you. To check out the ones that fit your ride, use our vehicle selector. You can also use the filters to view the sensors with the brand, price, and feature you prefer.<\/p>\n\n\n\n<p>We only offer oxygen sensors that passed the highest quality control standards, so you&rsquo;re sure to get one that&rsquo;s built to last. In the unlikely event that your order doesn&rsquo;t fit or you chose the incorrect part, simply file a claim, ship them back to us, and we&rsquo;ll issue your refund&#19968;it&rsquo;s that easy.<\/p>\n\n\n\n<p>Shop now to repair your ride in no time!<\/p>\n\n\n\n<div class=\"shop-project\">\n\n    <h2>Shop this Project<\/h2>\n\n    <ul class=\"shop-project-list\">\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repn960915\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960915_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960915_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repn960915\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated\">DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$49.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repn960915\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/evan-fischer\/repn960344\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960344_1\" alt=\"Evan Fischer&reg; &ndash; Rear Catalytic Converter, Federal EPA Standard, 46-State Legal, 2.5L Engine\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960344_1\" alt=\"Evan Fischer&reg; &ndash; Rear Catalytic Converter, Federal EPA Standard, 46-State Legal, 2.5L Engine\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/evan-fischer\/repn960344\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Evan Fischer&reg; &ndash; Rear Catalytic Converter, Federal EPA Standard, 46-State Legal, 2.5L Engine\">Evan Fischer&reg; &ndash; Rear Catalytic Converter, Federal EPA Standard, 46-State Legal, 2.5L Engine<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$154.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/evan-fischer\/repn960344\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/engine-control-module\/a1-cardone\/a1777747\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/a1777747_5\" alt=\"A1 Cardone&reg; &ndash; 77-7747 Reman Series Engine Control Module &ndash; Direct Fit, Sold individually\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/a1777747_5\" alt=\"A1 Cardone&reg; &ndash; 77-7747 Reman Series Engine Control Module &ndash; Direct Fit, Sold individually\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/engine-control-module\/a1-cardone\/a1777747\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"A1 Cardone&reg; &ndash; 77-7747 Reman Series Engine Control Module &ndash; Direct Fit, Sold individually\">A1 Cardone&reg; &ndash; 77-7747 Reman Series Engine Control Module &ndash; Direct Fit, Sold individually<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$95.49<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/engine-control-module\/a1-cardone\/a1777747\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n            <\/ul>\n<\/div>\n\n\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 your scan tool shows a stored P0147 code, this article should help you figure out where to start. Some&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0147-code-o2-sensor-heater-circuit-bank-1-sensor-3\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":18697,"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":{"0":"post-18686","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-oxygen-sensor-2","9":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0147 Code: O2 Sensor Heater Circuit (Bank 1 Sensor 3) - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what code P0147 means, its usual causes and symptoms, and what you can do to address it. Read on for more information.\" \/>\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\/p0147-code-o2-sensor-heater-circuit-bank-1-sensor-3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0147 Code: O2 Sensor Heater Circuit (Bank 1 Sensor 3) - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what code P0147 means, its usual causes and symptoms, and what you can do to address it. 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