{"id":12935,"date":"2021-07-08T02:07:00","date_gmt":"2021-07-08T09:07:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=12935"},"modified":"2024-05-27T21:14:30","modified_gmt":"2024-05-28T04:14:30","slug":"p0122-code-throttle-position-sensor-switch-a-circuit-low-input","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0122-code-throttle-position-sensor-switch-a-circuit-low-input\/","title":{"rendered":"P0122 Code: Throttle Position Sensor\/Switch A Circuit Low Input"},"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\"> 7<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_f6131c-64 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_f6131c-64 > .kt-inside-inner-col,.kadence-column_f6131c-64 > .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_f6131c-64 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_f6131c-64 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_f6131c-64 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_f6131c-64 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_f6131c-64{position:relative;}@media all and (max-width: 1024px){.kadence-column_f6131c-64 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_f6131c-64 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_f6131c-64 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-a01bd0  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-5490f2\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_bbfc6b-3a, .wp-block-kadence-advancedheading.kt-adv-heading_bbfc6b-3a[data-kb-block=\"kb-adv-heading_bbfc6b-3a\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_bbfc6b-3a mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_bbfc6b-3a[data-kb-block=\"kb-adv-heading_bbfc6b-3a\"] 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_bbfc6b-3a img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_bbfc6b-3a[data-kb-block=\"kb-adv-heading_bbfc6b-3a\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_bbfc6b-3a summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_bbfc6b-3a\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Diagnostic Trouble Code (DTC) P0122 stands for &ldquo;Throttle Position Sensor\/Switch A Circuit Low Input.&rdquo;<\/li><li>The powertrain control module (PCM) logs a P0122 code when the throttle position sensor &ldquo;A&rdquo; displays lower voltage than normal.<\/li><li>This fault can also indicate a problem with the electronic throttle pedal on newer vehicles.<\/li><li>The P0122 error code can cause issues like hard starting, hesitation, stalling, and surging.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>When the <a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Check Engine Light\">Check Engine Light<\/a> on your car&rsquo;s dashboard lights up, it&rsquo;s time to use a diagnostic scanner to determine what faults triggered the CEL. Typically, there are a variety of diagnostic trouble codes that could potentially be the culprit&mdash;and one of them is the P0122 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0122 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic Trouble Code (DTC) P0122 stands for &ldquo;Throttle Position Sensor\/Switch A Circuit Low Input.&rdquo; The powertrain control module (PCM) logs a P0122 code when the throttle position sensor &ldquo;A&rdquo; displays lower voltage than normal.<\/p>\n\n\n\n<p>As its name implies, the throttle position sensor keeps track of the throttle&rsquo;s position. It is usually located on the throttle body, but this fault can also indicate a problem with the electronic throttle pedal on newer vehicles.<\/p>\n\n\n\n<p>The signal from the throttle position sensor guides the computer in managing the ratio of air to fuel and the best time to trigger the spark plugs. The data also helps manage other parts of the emission system.<\/p>\n\n\n\n<p>For an advanced, technical description of different configurations of throttle position sensors, read our discussion <a href=\"https:\/\/www.carparts.com\/blog\/p0122-code-throttle-position-sensor-switch-a-circuit-low-input\/#A_Closer_Look_at_Throttle_Position_Sensors\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"here\">here<\/a>.<\/p>\n\n\n\n<p>To learn the possible causes of code P0122, read the next section.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P0122 Code?<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/throttle-body-1024x577.jpeg\" alt=\"an automotive throttle body\" class=\"wp-image-12946\" width=\"1024\" height=\"577\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/throttle-body-1024x577.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/throttle-body-300x169.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/throttle-body-768x433.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/throttle-body.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The voltage of the throttle position sensor can drop below the expected range for several reasons.<\/figcaption><\/figure><\/div>\n\n\n<p>The voltage of the throttle position sensor can drop below the expected range for several reasons, including the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>A loosely-mounted throttle position sensor<\/li><li>Electrical short on the sensor circuit, either to the ground or to another wire<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/bad-throttle-position-sensor-symptoms-what-you-need-to-know\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty sensor\">Faulty sensor<\/a><\/li><li>Faulty throttle position switch<\/li><li>Bad or corroded wiring or connections for the sensor<\/li><li>Issues with the PCM<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0122 Code?<\/h2>\n\n\n\n<p>As with any engine-related trouble code, the P0122 code will activate the Check Engine Light.<\/p>\n\n\n\n<p>Other symptoms include:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Hard starting engine<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-hesitates-when-accelerating-causes-and-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Engine hesitates while accelerating\">Engine hesitates while accelerating<\/a><\/li><li>Rough, low, or very high idle<\/li><li>Engine stalling<\/li><li>Surging<\/li><li>Minimal or zero acceleration<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0122 Code<\/h2>\n\n\n\n<p>Figuring out exactly what triggered the P0122 code can be tricky. You can leave the job to your mechanic or you can try to do it yourself with the help of a detailed guide.<\/p>\n\n\n\n<p>You can check out the video below to help you understand how to diagnose the code properly:<\/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=\"How to test a throttle position sensor (P0121, P0122) GM wiring integrity\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/h17kYyFrExE?start=1&amp;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 P0122 Code<\/h2>\n\n\n\n<p>The sheer number of possible causes that could trigger the P0122 code means there&rsquo;s no single way to fix it. Most people leave the job to their mechanics, but you can fix it yourself if you&rsquo;re confident enough in your automotive DIY skills.<\/p>\n\n\n\n<p>If you&rsquo;re a beginner, make sure to do your research&mdash;and there are plenty of <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=\"&lt;strong&gt;online auto repair resources and guides&lt;\/strong&gt;\"><strong>online auto repair resources and guides<\/strong><\/a> to help you do that. We also suggest getting an ALLDATA single-vehicle subscription (which would be specific to your vehicle) for this and all future repairs your car may need. Also, do consult your owner&rsquo;s manual before you begin working on your car.<\/p>\n\n\n\n<p>As mentioned, you won&rsquo;t find a definitive fix for any code. You&rsquo;ll have to figure out the underlying cause, then do your research on what fixes have worked to clear the code. Keep in mind that some fixes may only work for certain makes and models, and not for others.<\/p>\n\n\n\n<p>For example, replacing the PCM or VCM and repairing the throttle position sensor are some of the fixes that have been confirmed to work for various model-years of the Chevrolet Blazer. However, they may not work for other vehicles that are displaying the P0122 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Other Notes About P0122<\/h2>\n\n\n\n<p>Several <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD-II trouble codes\">OBD-II trouble codes<\/a> also cover the performance of the throttle position sensor at the &ldquo;A&rdquo; position. They are:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/p0120-code-throttle-pedal-position-sensor-a-circuit\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P0120: Throttle Position Sensor\/Switch A Circuit Malfunction\">P0120: Throttle Position Sensor\/Switch A Circuit Malfunction<\/a> &ndash; the voltage goes higher or lower than normal, or stutters in comparison to the &ldquo;B&rdquo; sensor<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/p0121-code-throttle-pedal-position-sensor-a-circuit-range-performance-problem\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P0121: Throttle Position Sensor\/Switch A Circuit Range\/Performance Problem\">P0121: Throttle Position Sensor\/Switch A Circuit Range\/Performance Problem<\/a> &ndash; the throttle angle doesn&rsquo;t match the value expected for a specific RPM<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/p0123-code-throttlepedal-position-sensor-a-circuit-high\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P0123: Throttle Position Sensor\/Switch A Circuit High Input\">P0123: Throttle Position Sensor\/Switch A Circuit High Input<\/a> &ndash; the voltage exceeds normal values<\/li><li><a href=\"http:\/\/P0124:%20Throttle%20Pedal%20Position%20Sensor\/Switch%20(TPS)%20A%20Circuit%20Intermittent\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"P0124: Throttle Pedal Position Sensor\/Switch (TPS) A Circuit Intermittent\">P0124: Throttle Pedal Position Sensor\/Switch (TPS) A Circuit Intermittent<\/a> &ndash; the sensor sends a number of intermittent or erratic signals within a set period<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">A Closer Look at Throttle Position Sensors<\/h2>\n\n\n\n<p>Throttle position sensors on older cars with cable-operated throttles are a single analog (not digital) unit mounted on the throttle plate shaft to provide throttle angle position to the ECM\/PCM. Vehicles with an ECM (which controls only the engine) and TCM (which controls the transmission) rather than a PCM (which controls both engine and transmission) will usually (not always) have two TP sensors, one for the transmission control module and the other for the engine control module.<\/p>\n\n\n\n<p>Early Asian and European vehicles sometimes have an analog TP sensor that includes an idle tracking switch (digital input) that closes or opens when the throttle is released to track when the vehicle should be idling. The ECM\/PCM can use the idle tracking switch compared to TP sensor voltage to determine if there is an issue with the sensor &ndash; if the idle tracking switch indicates idle but the TP analog portion of the sensor indicates otherwise, a code is set.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"TPS (Throttle Position Sensor) Types\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/OUK6va6pBC0?start=87&amp;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<p>This potentiometer type analog sensor has a moveable contact connected to the throttle valve that slides on a resistive strip, and the closer the slider moves toward the wide open throttle, the nearer it is to the 5-volt end of the strip,&nbsp; the higher the voltage. Likewise, the lower the slider moves toward the signal return end of the strip, the lower the voltage. Voltage at idle is typically from .5 to 1 volt and at wide open throttle it will be 4.5-4.7 volts. This varies slightly between manufacturers.<\/p>\n\n\n\n<p>With the advent of<strong> Electronic Throttle Control<\/strong>, which some will call &ldquo;drive by wire,&rdquo; putting the ECM\/PCM in charge of throttle angle made it expedient to have <strong>redundant<\/strong> TP sensors; more than one sensor in each spot &ndash; usually with two or three TP sensors on the Accelerator Pedal assembly (called AP sensors) and two or three TP sensors on the throttle body.<\/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>Most throttle position sensors are potentiometers &ndash; a three- sensor with a <strong>reference voltage<\/strong> (5 volts), <strong>a signal return<\/strong> (ECM\/PCMground), and a <strong>TP signal wire<\/strong> between those voltage and ground feeds that changes voltage with throttle position. On systems with redundant TP sensors, the two or three sensors don&rsquo;t all produce the same voltage at the same time &ndash; some have the sensor voltages &ldquo;mirrored,&rdquo; if you watch them on a scope.<\/p>\n\n\n\n<p>Other systems have the sensors reading various different voltages that are expected to follow certain parameters. Some sensors in a redundant array might top out at .75 volts while other sensors might top out at over 4 volts, with a third sensor topping out at 2.5 volts.<\/p>\n\n\n<style>.kadence-column_ca4a27-be > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_ca4a27-be > .kt-inside-inner-col,.kadence-column_ca4a27-be > .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_ca4a27-be > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_ca4a27-be > .kt-inside-inner-col{flex-direction:column;}.kadence-column_ca4a27-be > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_ca4a27-be > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_ca4a27-be{position:relative;}@media all and (max-width: 1024px){.kadence-column_ca4a27-be > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_ca4a27-be > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_ca4a27-be kb-section-dir-vertical kb-section-sm-dir-vertical pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>#kt-layout-id_bdd9ef-b3 > .kt-row-column-wrap{align-content:start;}:where(#kt-layout-id_bdd9ef-b3 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}#kt-layout-id_bdd9ef-b3 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:var( --global-kb-row-default-top, 25px );padding-bottom:var( --global-kb-row-default-bottom, 25px );padding-top:20px;padding-bottom:20px;padding-left:16px;padding-right:32px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}#kt-layout-id_bdd9ef-b3 > .kt-row-layout-overlay{opacity:0.00;}#kt-layout-id_bdd9ef-b3 .kt-row-layout-bottom-sep{height:100px;}#kt-layout-id_bdd9ef-b3 .kt-row-layout-bottom-sep svg{width:100%;}#kt-layout-id_bdd9ef-b3 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}#kt-layout-id_bdd9ef-b3 .kt-row-layout-top-sep{height:100px;}#kt-layout-id_bdd9ef-b3 .kt-row-layout-top-sep svg{width:100%;}#kt-layout-id_bdd9ef-b3 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){#kt-layout-id_bdd9ef-b3 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){#kt-layout-id_bdd9ef-b3 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){#kt-layout-id_bdd9ef-b3 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){#kt-layout-id_bdd9ef-b3 > .kt-row-column-wrap{padding-top:28px;padding-bottom:25px;padding-left:16px;padding-right:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}#kt-layout-id_bdd9ef-b3 .kt-row-layout-bottom-sep{height:px;}#kt-layout-id_bdd9ef-b3 .kt-row-layout-bottom-sep svg{width:%;}}<\/style>\n<div class=\"wp-block-kadence-rowlayout alignnone pro-tip-wrap\"><div id=\"kt-layout-id_bdd9ef-b3\" class=\"kt-row-layout-inner kt-layout-id_bdd9ef-b3\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-gutter-none kt-v-gutter-default kt-row-valign-top kt-row-layout-right-golden kt-tab-layout-right-golden kt-m-colapse-left-to-right kt-mobile-layout-right-golden  kt-custom-first-width-10  kt-custom-second-width-90\"><style>.kadence-column_dd1021-9e > .kt-inside-inner-col{display:flex;}.kadence-column_dd1021-9e > .kt-inside-inner-col{min-height:45px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_dd1021-9e > .kt-inside-inner-col,.kadence-column_dd1021-9e > .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_dd1021-9e > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column_dd1021-9e > .kt-inside-inner-col > *, .kadence-column_dd1021-9e > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_dd1021-9e > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_dd1021-9e > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column_dd1021-9e > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_dd1021-9e{position:relative;}@media all and (max-width: 1024px){.kadence-column_dd1021-9e > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column_dd1021-9e > .kt-inside-inner-col > *, .kadence-column_dd1021-9e > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_dd1021-9e > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_dd1021-9e > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column_dd1021-9e > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column_dd1021-9e > .kt-inside-inner-col > *, .kadence-column_dd1021-9e > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_dd1021-9e > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_dd1021-9e > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_dd1021-9e kb-section-dir-horizontal kb-section-md-dir-horizontal pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image_a73f48-49.kb-image-is-ratio-size, .kb-image_a73f48-49 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image_a73f48-49.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image_a73f48-49 .kb-image-is-ratio-size{align-self:unset;}.kb-image_a73f48-49 figure{max-width:45px;}.kb-image_a73f48-49 .image-is-svg, .kb-image_a73f48-49 .image-is-svg img{width:100%;}.kb-image_a73f48-49 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image_a73f48-49\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column_f15abf-e1 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_f15abf-e1 > .kt-inside-inner-col,.kadence-column_f15abf-e1 > .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_f15abf-e1 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_f15abf-e1 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_f15abf-e1 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_f15abf-e1 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_f15abf-e1{position:relative;}@media all and (max-width: 1024px){.kadence-column_f15abf-e1 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_f15abf-e1 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-2 kadence-column_f15abf-e1 pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\nMost vehicles still use potentiometers, but some, (like Toyota) are now using Hall Effect (non-contact) TP sensors, which uses more wires and a magnetic device within the sensor to make it less likely to wear out.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\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\/2023\/01\/diagram-of-electronic-throttle-body-and-accelerator-pedal-with-sensors-colored-1024x815.jpg\" alt=\"diagram of electronic throttle body and accelerator pedal with sensors colored\" class=\"wp-image-80503\" width=\"1024\" height=\"815\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/diagram-of-electronic-throttle-body-and-accelerator-pedal-with-sensors-colored-1024x815.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/diagram-of-electronic-throttle-body-and-accelerator-pedal-with-sensors-colored-300x239.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/diagram-of-electronic-throttle-body-and-accelerator-pedal-with-sensors-colored-768x612.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/diagram-of-electronic-throttle-body-and-accelerator-pedal-with-sensors-colored-1536x1223.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/diagram-of-electronic-throttle-body-and-accelerator-pedal-with-sensors-colored-150x119.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/diagram-of-electronic-throttle-body-and-accelerator-pedal-with-sensors-colored.jpg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The accelerator pedal and throttle body in this illustration have only two redundant potentiometers, but there are many newer platforms with three potentiometers on one or both of these components. | Image Source: Richard McCuistian.<\/figcaption><\/figure>\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\/2023\/03\/accelerator-pedal-sensor-array-on-a-2006-ford-explorer-1024x529.jpg\" alt=\"accelerator pedal sensor array on a 2006 ford explorer\" class=\"wp-image-82083\" width=\"1024\" height=\"529\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/accelerator-pedal-sensor-array-on-a-2006-ford-explorer-1024x529.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/accelerator-pedal-sensor-array-on-a-2006-ford-explorer-300x155.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/accelerator-pedal-sensor-array-on-a-2006-ford-explorer-768x397.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/accelerator-pedal-sensor-array-on-a-2006-ford-explorer-150x77.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/03\/accelerator-pedal-sensor-array-on-a-2006-ford-explorer.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>An accelerator pedal sensor array on a 2006 Ford Explorer. Notice how the sensors have different voltage ranges and that one of the sensors mirrors the other two rather than simply following them. This array provides a reliable way of using the expected rationality between the redundant sensors to reveal a fault in just one sensor. | Image Source: Richard McCuistian.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Get a Quality Replacement Throttle Position Sensor to Fix the P0122 Code<\/h2>\n\n\n\n<p><br>A bad throttle position sensor can trigger diagnostic trouble codes like the P0122 code. If ignored, the bad sensor causes issues like idle surges, stalling, and hesitation while accelerating. Before the situation gets worse, order a quality replacement throttle position sensor here at CarParts.com.<\/p>\n\n\n\n<p>There&rsquo;s no need to step out of the comfort of your home and wait in a long line to get a new throttle position sensor. Simply plug your vehicle&rsquo;s year, make, and model in our website&rsquo;s built-in vehicle selector to bring up quality products from brands trusted by drivers across the country. <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a> adds to the convenience by stocking its parts in strategically positioned warehouses, so you don&rsquo;t have to wait long before your order arrives.<\/p>\n\n\n\n<p>Don&rsquo;t wait to replace a faulty throttle position sensor! Check out our wide selection of <a href=\"https:\/\/www.carparts.com\/throttle-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"throttle position sensors\">throttle position sensors<\/a> and enjoy low prices on quality products!<\/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\/throttle-position-sensor\" target=\"_blank\" aria-label=\"throttle position 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\/reph314203_1\">\n<strong>Throttle Position Sensor<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/throttle-switch\" target=\"_blank\" aria-label=\"bumper cover\" 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\/bs402003500_1\">\n<strong>Throttle Switch<\/strong>\n<\/a>\n\n<!-- end of editable content -->\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\"> 7<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>When the Check Engine Light on your car&rsquo;s dashboard lights up, it&rsquo;s time to use a diagnostic scanner to determine&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0122-code-throttle-position-sensor-switch-a-circuit-low-input\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":12945,"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":[1615,1679],"ppma_author":[2607,2985],"class_list":{"0":"post-12935","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-throttle-body","9":"tag-throttle-position-sensor","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>P0122 Code: Throttle Position Sensor\/Switch A Circuit Low Input - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what code P0122 means, what sets it off, and the symptoms linked to it. Learn the proper approach for fixing this code. Read on for more.\" \/>\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\/p0122-code-throttle-position-sensor-switch-a-circuit-low-input\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0122 Code: Throttle Position Sensor\/Switch A Circuit Low Input - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what code P0122 means, what sets it off, and the symptoms linked to it. Learn the proper approach for fixing this code. 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