{"id":16233,"date":"2022-02-18T02:23:00","date_gmt":"2022-02-18T10:23:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=16233"},"modified":"2026-02-10T22:04:37","modified_gmt":"2026-02-11T06:04:37","slug":"p0157-code-oxygen-sensor-circuit-low-voltage-bank-2-sensor-2","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0157-code-oxygen-sensor-circuit-low-voltage-bank-2-sensor-2\/","title":{"rendered":"P0157 Code: Oxygen Sensor Circuit Low Voltage (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\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column16233_3c75d5-f0 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column16233_3c75d5-f0 > .kt-inside-inner-col,.kadence-column16233_3c75d5-f0 > .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-column16233_3c75d5-f0 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column16233_3c75d5-f0 > .kt-inside-inner-col{flex-direction:column;}.kadence-column16233_3c75d5-f0 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column16233_3c75d5-f0 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column16233_3c75d5-f0{position:relative;}@media all and (max-width: 1024px){.kadence-column16233_3c75d5-f0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column16233_3c75d5-f0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column16233_3c75d5-f0 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-90c7bd  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-db9b73\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading16233_c9a12d-34, .wp-block-kadence-advancedheading.kt-adv-heading16233_c9a12d-34[data-kb-block=\"kb-adv-heading16233_c9a12d-34\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading16233_c9a12d-34 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading16233_c9a12d-34[data-kb-block=\"kb-adv-heading16233_c9a12d-34\"] 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-heading16233_c9a12d-34 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading16233_c9a12d-34[data-kb-block=\"kb-adv-heading16233_c9a12d-34\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading16233_c9a12d-34 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading16233_c9a12d-34\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P0157 stands for &ldquo;Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 2).&rdquo;<\/li>\n\n\n\n<li>This code is triggered when the powertrain control module (PCM) detects a problem with the downstream oxygen sensor.<\/li>\n\n\n\n<li>A damaged oxygen sensor, exhaust leaks, and a lean running condition are possible reasons why this trouble code is set.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The P0157 code refers to a potential problem with the #2 sensor on Bank 2 or its circuit. This code applies to the downstream oxygen sensor located right behind the catalytic converter. If your OBD-II scanner registers this code, you can either let your mechanic handle it or address the issue yourself.<\/p>\n\n\n\n<p>Read on to learn about the P0157 code&rsquo;s meaning, possible causes, common symptoms, and more.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0157 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) P0157 stands for &ldquo;Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 2).&rdquo; It indicates that the voltage signal from the downstream oxygen sensor has remained below a specific threshold for an extended period.<\/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\/09\/oxygen-sensor-in-exhaust-2-1024x683.jpeg\" alt=\"oxygen sensor in exhaust 2\" class=\"wp-image-16255\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-in-exhaust-2-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-in-exhaust-2-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-in-exhaust-2-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-in-exhaust-2-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-in-exhaust-2-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/oxygen-sensor-in-exhaust-2.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">This code applies to the downstream oxygen sensor located right behind the catalytic converter.<\/figcaption><\/figure>\n\n\n\n<p>Diagnostic trouble code (DTC) P0157 stands for &ldquo;Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 2).&rdquo; It indicates that the voltage signal from the downstream oxygen sensor has remained below a specific threshold for an extended period.<\/p>\n\n\n\n<p>The P0157 code is typically triggered when the powertrain control module (PCM) has detected that the oxygen sensor voltage stayed below the expected value for more than preset time. The voltage and timeline may differ between various makes and models.<\/p>\n\n\n\n<p>Unlike upstream oxygen sensors, which relay data needed by the PCM for calculating the optimal air-fuel mix, the main purpose of downstream oxygen sensors is to check the efficiency of the catalytic converter. They achieve this by monitoring the amount of oxygen in the exhaust gases exiting the catalytic converter.<\/p>\n\n\n\n<p>The PCM compares the readings between the upstream and downstream oxygen sensors. If there is little to no difference between the two, it will conclude that the catalytic converter is failing.<\/p>\n\n\n\n<p>The downstream oxygen sensors should produce a steady voltage within a specified range to show that the catalytic converter is doing its job. If the signal from the O2 sensor circuit is low and falls below this range, the P0157 code is set.<\/p>\n\n\n\n<p>If you want to fix P0157 yourself, a more technical understanding of <a href=\"https:\/\/www.carparts.com\/blog\/p0138-code-o2-sensor-circuit-high-voltage-bank-1-sensor-2\/#How_the_Downstream_Oxygen_Sensor_Can_Trigger_P0138\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"how the downstream oxygen sensor can trigger OBD codes\">how the downstream oxygen sensor can trigger OBD codes<\/a> can help you come up with a proper solution.<\/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><em><strong>Note: <\/strong>The definition of code P0157 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 P0157 Code?<\/h2>\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=\"Defective Oxygen Sensor\">Defective Oxygen Sensor<\/a><\/li>\n\n\n\n<li>Lean running condition<\/li>\n\n\n\n<li>Defective sensor <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wiring\">wiring<\/a> and\/or circuit problem<\/li>\n\n\n\n<li>Exhaust leaks<\/li>\n\n\n\n<li>PCM failure<\/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\/09\/catalytic-converter-4-1024x683.jpeg\" alt=\"catalytic converter 4\" class=\"wp-image-16253\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-4-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-4-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-4-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-4-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-4-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-4.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">The downstream oxygen sensors should produce a steady voltage within a specified range to show that the catalytic converter is doing its job.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0157 Code?<\/h2>\n\n\n\n<p>The most common symptom of the code P0157 is an <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>.<\/p>\n\n\n\n<p>This trouble code usually does not present any observable or adverse symptoms except for an illuminated Check Engine Light. This is because the downstream oxygen sensor only measures the efficiency of the catalytic converter.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0157 Code<\/h2>\n\n\n\n<p>To resolve the P0157 code, you need to determine its exact cause, which can prove challenging. If you are not confident with your DIY automotive repair skills, it&rsquo;s best to leave the task to your mechanic. Otherwise, you can track down the code and determine what&rsquo;s causing it by performing some diagnostic steps.<\/p>\n\n\n\n<p>Need more guidance to help you diagnose the P0157 code? Watch this helpful video:<\/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=\"Chrysler Dodge Jeep P0157 P0158 P0137 and\/or P0138\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/-qArJ940pmo?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 P0157 Code<\/h2>\n\n\n\n<p>Once you&rsquo;ve determined what triggered the P0157 code, figure out how to resolve it using <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"online auto repair resources and guides\">online auto repair resources and guides<\/a>.<\/p>\n\n\n\n<p>Keep in mind that the solution varies based not only on the code&rsquo;s cause but also on the vehicle&rsquo;s make and model, so research confirmed fixes for P0157 that are specific to your car. Consult your owner&rsquo;s manual before attempting repairs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Get a Replacement O2 Sensor That Fits Your Car<\/h2>\n\n\n\n<p>Just because you can still drive around with a defective O2 sensor doesn&rsquo;t mean you should. Driving with a damaged O2 sensor is a recipe for disaster: your engine can misfire, your fuel economy can worsen, and your <a href=\"https:\/\/www.carparts.com\/catalytic-converter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converter\">catalytic converter<\/a> can get clogged with excess fuel. These can all lead to some pretty pricey repairs, so it&rsquo;s best to face the issue head-on. Luckily, getting a new <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"O2 sensor\">O2 sensor<\/a> that fits your car is fast and easy with CarParts.com.&nbsp;<\/p>\n\n\n\n<p>CarParts.com offers a wide selection of oxygen sensors at different price points, so you can find something that fits your vehicle and your budget. Thanks to our strategically located warehouses around the US, you can also expect to receive your new O2 sensor in as fast as two business days. Just be sure to order before 12 p.m. ET.&nbsp;<\/p>\n\n\n\n<p>Don&rsquo;t wait until your O2 sensor starts wreaking havoc on your engine. Get a brand-new oxygen sensor from CarParts.com today.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Products Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\">\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<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\/set-repb960901-2_1\" alt=\"Oxygen Sensor\">\n<strong>Oxygen Sensor<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/catalytic-converter\" target=\"_blank\" aria-label=\"Catalytic Converter\" rel=\"noopener\">\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\/repi960303_1\" alt=\"Catalytic Converter\">\n<strong>Catalytic Converter<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" aria-label=\"Engine Control Module\" rel=\"noopener\">\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\/a1721000_1\" alt=\"Engine Control Module\">\n<strong>Engine Control Module<\/strong>\n<\/a>\n\n<!-- end of editable content -->\n<\/div>\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\/repb960901\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repb960901_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated, With Female Connector\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repb960901_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated, With Female Connector\"><\/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\/repb960901\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated, With Female Connector\">DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated, With Female Connector<\/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\">$22.99<\/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\/repb960901\" 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\/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\/set-repn960335ss-2\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/set-repn960335ss-2_1\" alt=\"Evan Fischer&reg; &ndash; Front and Rear Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME)\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/set-repn960335ss-2_1\" alt=\"Evan Fischer&reg; &ndash; Front and Rear Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME)\"><\/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\/set-repn960335ss-2\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Evan Fischer&reg; &ndash; Front and Rear Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME)\">Evan Fischer&reg; &ndash; Front and Rear Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME)<\/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\">$299.99<\/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\/set-repn960335ss-2\" 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\/ac-delco\/ac12700116\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/images\/ac12700116_1\" alt=\"AC Delco&reg;&ndash; 12700116 Engine Control Module - Direct Fit, Sold individually\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/images\/ac12700116_1\" alt=\"AC Delco&reg;&ndash; 12700116 Engine Control Module - 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\/ac-delco\/ac12700116\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"AC Delco&reg;&ndash; 12700116 Engine Control Module &ndash; Direct Fit, Sold individually\">AC Delco&reg;&ndash; 12700116 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-0.svg\" alt=\"0 Stars\">\n                    <\/div>\n\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\/ac-delco\/ac12700116\" 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\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>The P0157 code refers to a potential problem with the #2 sensor on Bank 2 or its circuit. This code&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0157-code-oxygen-sensor-circuit-low-voltage-bank-2-sensor-2\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":16256,"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-16233","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 v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0157 Code: Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 2) - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Read on to find out what the P0157 code means, its possible causes, and the common symptoms associated with this trouble code.\" \/>\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\/p0157-code-oxygen-sensor-circuit-low-voltage-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=\"P0157 Code: Oxygen Sensor Circuit Low Voltage (Bank 2, Sensor 2) - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Read on to find out what the P0157 code means, its possible causes, and the common symptoms associated with this trouble code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0157-code-oxygen-sensor-circuit-low-voltage-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:author\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2022-02-18T10:23:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-11T06:04:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/downstream-oxygen-sensor-1.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1001\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, Richard McCuistian, ASE Certified Master Automobile Technician\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/CarPartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"CarParts.com Research Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0157-code-oxygen-sensor-circuit-low-voltage-bank-2-sensor-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0157-code-oxygen-sensor-circuit-low-voltage-bank-2-sensor-2\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"1651\",\"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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