{"id":121737,"date":"2024-11-07T08:54:07","date_gmt":"2024-11-07T16:54:07","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=121737"},"modified":"2025-02-03T17:11:29","modified_gmt":"2025-02-04T01:11:29","slug":"multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/","title":{"rendered":"Multifunction Switch: What It Is, How It Works, When to Replace, and More"},"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\"> 6<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column121737_f08457-08 > .kt-inside-inner-col,.kadence-column121737_f08457-08 > .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-column121737_f08457-08 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column121737_f08457-08 > .kt-inside-inner-col{flex-direction:column;}.kadence-column121737_f08457-08 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column121737_f08457-08 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column121737_f08457-08{position:relative;}@media all and (max-width: 1024px){.kadence-column121737_f08457-08 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column121737_f08457-08 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column121737_f08457-08 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-597697  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-9d5abf\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading121737_4bb0c3-5b, .wp-block-kadence-advancedheading.kt-adv-heading121737_4bb0c3-5b[data-kb-block=\"kb-adv-heading121737_4bb0c3-5b\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading121737_4bb0c3-5b mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading121737_4bb0c3-5b[data-kb-block=\"kb-adv-heading121737_4bb0c3-5b\"] 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-heading121737_4bb0c3-5b img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading121737_4bb0c3-5b[data-kb-block=\"kb-adv-heading121737_4bb0c3-5b\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading121737_4bb0c3-5b summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading121737_4bb0c3-5b\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A multifunction switch is a cluster of switches built into a single assembly. It typically includes the wiper\/washer switch, headlight dimmer, and the turn signals.<\/li>\n\n\n\n<li>Common symptoms of a faulty multifunction switch include turn signal issues, headlight problems, or malfunctioning wipers.<\/li>\n\n\n\n<li>The average cost of replacing a multifunction switch is around $100.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>A multifunction switch is actually a cluster of switches built into a single assembly. It typically includes the wiper\/washer switch, headlight dimmer, and the turn signals. Some multifunction switches will have levers on both sides of the steering column and require the removal of the steering wheel and airbag clockspring when it is being replaced.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the Multifunction Switch Do?<\/h2>\n\n\n\n<p>The multifunction switch makes it easier for you to operate different systems without taking your hands off the steering wheel. Some of its functions include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Activates the left or right turn signals and the hazard flashers<\/li>\n\n\n\n<li>Switches between high and low-beam headlights and\/or turns the headlights on or off<\/li>\n\n\n\n<li>Controls the speed and operation of the windshield wipers<\/li>\n\n\n\n<li>Activates the windshield washer<\/li>\n\n\n\n<li>Turns the fog lights on or off<\/li>\n\n\n\n<li>Controls the horn in some vehicles<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How Does a Multifunction Switch Work?<\/h2>\n\n\n\n<p>The multifunction switch has multiple switches integrated into its design.. The three main ones are the switching mechanism, lever, and wiring system. The wiper switch will have interval positions that use a stepped resistor array.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works-1024x1024.jpg\" alt=\"schematic showing how multifunction switch works\" class=\"wp-image-121740\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works-1024x1024.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works-300x300.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works-768x768.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works-1536x1536.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works-75x75.jpg 75w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works-600x600.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works-96x96.jpg 96w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works-150x150.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/schematic-showing-how-multifunction-switch-works.jpg 1599w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">The other switches (see schematic) may use reference voltage from a lighting control or body control module to trigger wiper, wiper washers headlights, or turn signal operation, or the switch may directly control the turn signals and headlamps, or the various relays that control the lights. | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p>On older vehicles, the switch is usually hard-wired to the lights and is designed to handle the load. Newer vehicles usually have reference voltage feeds from modules and resistors in the switch to signal the module what to do.<\/p>\n\n\n\n<p>Also, on older vehicles where the stop lamps and turn signals share the same bulbs, the stop lamp feed will be wired through the switch so that it can divert the stop lamp feed on one side through the flasher when the turn signal is engaged.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Symptoms of a Faulty Multifunction Switch<\/h2>\n\n\n\n<p>Some symptoms of a faulty multifunction switch include turn signal issues, headlight problems, and a malfunctioning windshield wiper.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Turn Signal Issues<\/h3>\n\n\n\n<p>Because the multifunction switch controls the turn signals, issues with the signals could indicate a <a href=\"https:\/\/www.carparts.com\/blog\/turn-signal-switch-problems\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"faulty switch\">faulty switch<\/a>. These could manifest in different forms, such as a turn signal that&rsquo;s not working, working intermittently, or not canceling.<\/p>\n\n\n\n<p>If the turn signals are working intermittently, it might be a sign that the multifunction switch is starting to fail. This could be due to wear, but it could also be issues within the electrical system, so it&rsquo;s best to have the wiring inspected to locate the cause.<\/p>\n\n\n<style>.kadence-column121737_c9378b-85 > .kt-inside-inner-col,.kadence-column121737_c9378b-85 > .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-column121737_c9378b-85 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column121737_c9378b-85 > .kt-inside-inner-col{flex-direction:column;}.kadence-column121737_c9378b-85 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column121737_c9378b-85 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column121737_c9378b-85{position:relative;}@media all and (max-width: 1024px){.kadence-column121737_c9378b-85 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column121737_c9378b-85 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column121737_c9378b-85 kb-section-dir-vertical kb-section-sm-dir-vertical inner-column-1 pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id121737_aee3db-4e > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id121737_aee3db-4e > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id121737_aee3db-4e > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:20px;padding-right:32px;padding-bottom:20px;padding-left:16px;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)));}.kb-row-layout-id121737_aee3db-4e > .kt-row-layout-overlay{opacity:0.00;}.kb-row-layout-id121737_aee3db-4e .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id121737_aee3db-4e .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id121737_aee3db-4e .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}.kb-row-layout-id121737_aee3db-4e .kt-row-layout-top-sep{height:100px;}.kb-row-layout-id121737_aee3db-4e .kt-row-layout-top-sep svg{width:100%;}.kb-row-layout-id121737_aee3db-4e .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id121737_aee3db-4e > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){.kb-row-layout-id121737_aee3db-4e .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id121737_aee3db-4e .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id121737_aee3db-4e > .kt-row-column-wrap{padding-top:28px;padding-right:16px;padding-bottom:25px;padding-left:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}.kb-row-layout-id121737_aee3db-4e .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id121737_aee3db-4e .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id121737_aee3db-4e alignnone pro-tip-wrap wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-right-golden kt-mobile-layout-right-golden kt-row-valign-top\">\n<style>.kadence-column121737_e15cda-f3 > .kt-inside-inner-col{display:flex;}.kadence-column121737_e15cda-f3 > .kt-inside-inner-col{min-height:45px;}.kadence-column121737_e15cda-f3 > .kt-inside-inner-col,.kadence-column121737_e15cda-f3 > .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-column121737_e15cda-f3 > .kt-inside-inner-col{row-gap:0px;column-gap:0px;}.kadence-column121737_e15cda-f3 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column121737_e15cda-f3 > .kt-inside-inner-col > *, .kadence-column121737_e15cda-f3 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column121737_e15cda-f3 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column121737_e15cda-f3 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column121737_e15cda-f3 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column121737_e15cda-f3{position:relative;}@media all and (max-width: 1024px){.kadence-column121737_e15cda-f3 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column121737_e15cda-f3 > .kt-inside-inner-col > *, .kadence-column121737_e15cda-f3 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column121737_e15cda-f3 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column121737_e15cda-f3 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column121737_e15cda-f3 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column121737_e15cda-f3 > .kt-inside-inner-col > *, .kadence-column121737_e15cda-f3 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column121737_e15cda-f3 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column121737_e15cda-f3 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column121737_e15cda-f3 kb-section-dir-horizontal kb-section-md-dir-horizontal inner-column-1 pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image121737_0ea67d-cf.kb-image-is-ratio-size, .kb-image121737_0ea67d-cf .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image121737_0ea67d-cf.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image121737_0ea67d-cf .kb-image-is-ratio-size{align-self:unset;}.kb-image121737_0ea67d-cf figure{max-width:45px;}.kb-image121737_0ea67d-cf .image-is-svg, .kb-image121737_0ea67d-cf .image-is-svg img{width:100%;}.kb-image121737_0ea67d-cf .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image121737_0ea67d-cf\"><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-column121737_45f6a1-05 > .kt-inside-inner-col,.kadence-column121737_45f6a1-05 > .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-column121737_45f6a1-05 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column121737_45f6a1-05 > .kt-inside-inner-col{flex-direction:column;}.kadence-column121737_45f6a1-05 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column121737_45f6a1-05 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column121737_45f6a1-05{position:relative;}@media all and (max-width: 1024px){.kadence-column121737_45f6a1-05 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column121737_45f6a1-05 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column121737_45f6a1-05 inner-column-2 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>\nIf the high mount stop lamp works but the stop lamps don&rsquo;t, the switch is suspect. Hazard lights that don&rsquo;t work are another possible symptom of a faulty switch. In situations like this, bulbs need to be checked. If the turn signals work but the center high mount stop lamp is the only one that works when the brakes are applied, suspect the switch.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>Lastly, the multifunction switch has a component called the canceling cam that cancels the turn signals after you make a turn. The cam could be faulty if the switch doesn&rsquo;t automatically flip back to its neutral position when the steering wheel is returned to center after a turn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Headlight Problems<\/h3>\n\n\n\n<p>Headlight issues could stem from blow-out bulbs but they can also be <a href=\"https:\/\/www.carparts.com\/blog\/common-reasons-why-your-turn-signal-bulb-is-malfunctioning\/#Malfunctioning_Turn_Signal_Switch\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"multifunction switch-related\">multifunction switch-related<\/a>. If you&rsquo;re having trouble switching between high and low beams, consider inspecting the switch, as it could mean it&rsquo;s not sending signals to the car computer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Windshield Wiper Malfunctions<\/h3>\n\n\n\n<p>Similarly, issues with the windshield wiper could be due to multifunction switch issues. Like with the headlights, problems within the switch&rsquo;s wirings could prevent it from effectively sending signals to the computer to turn the windshield on.<\/p>\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\">How to Test a Multifunction Switch<\/h2>\n\n\n\n<p>To begin with, most newer multifunction switches are extremely complex and difficult to test, so be aware of this before you even begin to try and follow the steps below.<\/p>\n\n\n\n<p>It&rsquo;s actually easier to measure voltage (if you have a schematic and know what to look for) by backprobing the pins at the switch than it is to test the switch.<\/p>\n\n\n<style>.kadence-column121737_f14e50-68 > .kt-inside-inner-col,.kadence-column121737_f14e50-68 > .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-column121737_f14e50-68 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column121737_f14e50-68 > .kt-inside-inner-col{flex-direction:column;}.kadence-column121737_f14e50-68 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column121737_f14e50-68 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column121737_f14e50-68{position:relative;}@media all and (max-width: 1024px){.kadence-column121737_f14e50-68 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column121737_f14e50-68 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column121737_f14e50-68 kb-section-dir-vertical kb-section-sm-dir-vertical inner-column-1 pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id121737_9d4067-9d > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id121737_9d4067-9d > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id121737_9d4067-9d > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:20px;padding-right:32px;padding-bottom:20px;padding-left:16px;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)));}.kb-row-layout-id121737_9d4067-9d > .kt-row-layout-overlay{opacity:0.00;}.kb-row-layout-id121737_9d4067-9d .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id121737_9d4067-9d .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id121737_9d4067-9d .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}.kb-row-layout-id121737_9d4067-9d .kt-row-layout-top-sep{height:100px;}.kb-row-layout-id121737_9d4067-9d .kt-row-layout-top-sep svg{width:100%;}.kb-row-layout-id121737_9d4067-9d .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id121737_9d4067-9d > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){.kb-row-layout-id121737_9d4067-9d .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id121737_9d4067-9d .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id121737_9d4067-9d > .kt-row-column-wrap{padding-top:28px;padding-right:16px;padding-bottom:25px;padding-left:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}.kb-row-layout-id121737_9d4067-9d .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id121737_9d4067-9d .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id121737_9d4067-9d alignnone pro-tip-wrap wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-right-golden kt-mobile-layout-right-golden kt-row-valign-top\">\n<style>.kadence-column121737_c17135-29 > .kt-inside-inner-col{display:flex;}.kadence-column121737_c17135-29 > .kt-inside-inner-col{min-height:45px;}.kadence-column121737_c17135-29 > .kt-inside-inner-col,.kadence-column121737_c17135-29 > .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-column121737_c17135-29 > .kt-inside-inner-col{row-gap:0px;column-gap:0px;}.kadence-column121737_c17135-29 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column121737_c17135-29 > .kt-inside-inner-col > *, .kadence-column121737_c17135-29 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column121737_c17135-29 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column121737_c17135-29 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column121737_c17135-29 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column121737_c17135-29{position:relative;}@media all and (max-width: 1024px){.kadence-column121737_c17135-29 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column121737_c17135-29 > .kt-inside-inner-col > *, .kadence-column121737_c17135-29 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column121737_c17135-29 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column121737_c17135-29 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column121737_c17135-29 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column121737_c17135-29 > .kt-inside-inner-col > *, .kadence-column121737_c17135-29 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column121737_c17135-29 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column121737_c17135-29 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column121737_c17135-29 kb-section-dir-horizontal kb-section-md-dir-horizontal inner-column-1 pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image121737_5a7087-89.kb-image-is-ratio-size, .kb-image121737_5a7087-89 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image121737_5a7087-89.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image121737_5a7087-89 .kb-image-is-ratio-size{align-self:unset;}.kb-image121737_5a7087-89 figure{max-width:45px;}.kb-image121737_5a7087-89 .image-is-svg, .kb-image121737_5a7087-89 .image-is-svg img{width:100%;}.kb-image121737_5a7087-89 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image121737_5a7087-89\"><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-column121737_c78159-c3 > .kt-inside-inner-col,.kadence-column121737_c78159-c3 > .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-column121737_c78159-c3 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column121737_c78159-c3 > .kt-inside-inner-col{flex-direction:column;}.kadence-column121737_c78159-c3 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column121737_c78159-c3 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column121737_c78159-c3{position:relative;}@media all and (max-width: 1024px){.kadence-column121737_c78159-c3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column121737_c78159-c3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column121737_c78159-c3 inner-column-2 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>\nEven on older vehicles, testing the switch can be difficult to do with any kind of accuracy. Usually it&rsquo;s just best to replace the switch, but make sure you get exactly the right switch because different year models switches aren&rsquo;t the same even if they look the same and will plug in.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>Having said that, here are some general steps to follow to test a multifunction switch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Step 1:<\/strong> Locate the multifunction switch.<\/li>\n\n\n\n<li><strong>Step 2:<\/strong> Use a screwdriver to remove the screws holding the steering wheel covers in place. Take the cover off to expose the switch.<\/li>\n\n\n\n<li><strong>Step 3:<\/strong> Disconnect the switch by removing it from the electrical connectors. You might need to remove additional screws or clips holding it in place.<\/li>\n\n\n\n<li><strong>Step 4:<\/strong> Pull out the old switch from its position.<\/li>\n\n\n\n<li><strong>Step 5:<\/strong> Use a multimeter to test the switch terminals for continuity.<\/li>\n\n\n\n<li><strong>Step 6:<\/strong> Set your multimeter to the continuity setting and touch one probe to each terminal.<\/li>\n\n\n\n<li><strong>Step 7:<\/strong> If you hear a beep, the switch still works, and the issues could lie elsewhere. If there&rsquo;s no continuity, then the switch needs replacement.<\/li>\n<\/ul>\n\n\n\n<p>Some models require you to remove the airbags and the steering wheel to access the multifunction switch. While it&rsquo;s doable on your own, having professional assistance is better in this scenario because it requires numerous steps and proper precautions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Replace a Multifunction Switch<\/h2>\n\n\n\n<p>The issues above can be fixed by replacing the multifunction switch, assuming it&rsquo;s the one responsible for them in the first place. The process varies, depending on the make and model of your vehicle. However, here are some general steps you can follow:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Step 1:<\/strong> Disconnect the negative battery terminal to ensure safety since the switch is electrically controlled. The terminal is usually a black cable labeled &ldquo;negative&rdquo; or a minus sign.<\/li>\n\n\n\n<li><strong>Step 2:<\/strong> Remove the switch from its position similar to how you removed it to test it out.<\/li>\n\n\n\n<li><strong>Step 3:<\/strong> Place the new switch in the same position as the old one and reconnect the electrical connectors and secure the switch with screws or clips.<\/li>\n\n\n\n<li><strong>Step 4:<\/strong> Reassemble the steering column by placing the covers back in place and securing them with screws.<\/li>\n\n\n\n<li><strong>Step 5:<\/strong> Reconnect the negative battery terminal.<\/li>\n<\/ul>\n\n\n\n<p>If you&rsquo;re not confident in replacing the multifunction switch, it&rsquo;s best to have a licensed mechanic do it. They&rsquo;re more experienced with vehicle issues and will have the appropriate tools and know-how to properly diagnose and replace the switch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Much for a Multifunction Switch Repair?<\/h2>\n\n\n\n<p>The average cost of replacing a multifunction switch is around $100. Labor fees are estimated to be between $80 and $105. This doesn&rsquo;t include taxes, fees, and related repairs, so the price could be higher.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get a Replacement Multifunction Switch for Your Car<\/h2>\n\n\n\n<p>If multifunction switch repair seems too pricey for you, a great alternative is to buy and install a replacement instead. Doing so ensures the switch properly works, and should save you money in the long run. Luckily for you, <a href=\"http:\/\/carparts.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a> has an array of high-quality <a href=\"https:\/\/www.carparts.com\/combination-switch\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"multifunction switches\">multifunction switches<\/a> on hand.<\/p>\n\n\n\n<p>To narrow down our catalog to the multifunction switches that fit your ride, fill out our vehicle selector. Then, use our search filters to view the ones that match your preferences. Our selection includes accurate and detailed fitment information to help you find the perfect part replacement.<\/p>\n\n\n\n<p>We have strategically located auto parts warehouses across the country. Order now, and we&rsquo;ll deliver your product straight to your doorstep in as fast as two business days. In the unlikely event that your new brake parts don&rsquo;t fit, 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>Visit CarParts.com today and get the best deals on multifunction switches!<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 6<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>A multifunction switch is actually a cluster of switches built into a single assembly. It typically includes the wiper\/washer switch,&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":121739,"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":[52,3758],"tags":[1648],"ppma_author":[2607],"class_list":{"0":"post-121737","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diy","8":"category-electrical-system","9":"tag-turn-signal-switch","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>Multifunction Switch: What It Is, How It Works, When to Replace, and More - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what the multifunction switch is, how it works, what it controls, and how to replace, remove, and test it, among others.\" \/>\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\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Multifunction Switch: What It Is, How It Works, When to Replace, and More - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what the multifunction switch is, how it works, what it controls, and how to replace, remove, and test it, among others.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/\" \/>\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=\"2024-11-07T16:54:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-02-04T01:11:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/how-multifunction-switch-works.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1364\" \/>\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=\"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\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/\"},\"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\\\/\"}],\"headline\":\"Multifunction Switch: What It Is, How It Works, When to Replace, and More\",\"datePublished\":\"2024-11-07T16:54:07+00:00\",\"dateModified\":\"2025-02-04T01:11:29+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/\"},\"wordCount\":1481,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/11\\\/how-multifunction-switch-works.jpg\",\"keywords\":[\"turn-signal-switch\"],\"articleSection\":[\"DIY\",\"Electrical System\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/\",\"name\":\"Multifunction Switch: What It Is, How It Works, When to Replace, and More - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/11\\\/how-multifunction-switch-works.jpg\",\"datePublished\":\"2024-11-07T16:54:07+00:00\",\"dateModified\":\"2025-02-04T01:11:29+00:00\",\"description\":\"Find out what the multifunction switch is, how it works, what it controls, and how to replace, remove, and test it, among others.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/11\\\/how-multifunction-switch-works.jpg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/11\\\/how-multifunction-switch-works.jpg\",\"width\":2048,\"height\":1364,\"caption\":\"how multifunction switch works\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"name\":\"In The Garage with CarParts.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\",\"name\":\"CarParts.com\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"width\":2048,\"height\":398,\"caption\":\"CarParts.com\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/x.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Multifunction Switch: What It Is, How It Works, When to Replace, and More - In The Garage with CarParts.com","description":"Find out what the multifunction switch is, how it works, what it controls, and how to replace, remove, and test it, among others.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/","og_locale":"en_US","og_type":"article","og_title":"Multifunction Switch: What It Is, How It Works, When to Replace, and More - In The Garage with CarParts.com","og_description":"Find out what the multifunction switch is, how it works, what it controls, and how to replace, remove, and test it, among others.","og_url":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2024-11-07T16:54:07+00:00","article_modified_time":"2025-02-04T01:11:29+00:00","og_image":[{"width":2048,"height":1364,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/how-multifunction-switch-works.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@carpartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"","Est. reading time":"7 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/"},"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\/"}],"headline":"Multifunction Switch: What It Is, How It Works, When to Replace, and More","datePublished":"2024-11-07T16:54:07+00:00","dateModified":"2025-02-04T01:11:29+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/"},"wordCount":1481,"commentCount":0,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/how-multifunction-switch-works.jpg","keywords":["turn-signal-switch"],"articleSection":["DIY","Electrical System"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/","url":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/","name":"Multifunction Switch: What It Is, How It Works, When to Replace, and More - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/#primaryimage"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/how-multifunction-switch-works.jpg","datePublished":"2024-11-07T16:54:07+00:00","dateModified":"2025-02-04T01:11:29+00:00","description":"Find out what the multifunction switch is, how it works, what it controls, and how to replace, remove, and test it, among others.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/how-multifunction-switch-works.jpg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/how-multifunction-switch-works.jpg","width":2048,"height":1364,"caption":"how multifunction switch works"},{"@type":"WebSite","@id":"https:\/\/www.carparts.com\/blog\/#website","url":"https:\/\/www.carparts.com\/blog\/","name":"In The Garage with CarParts.com","description":"","publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.carparts.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.carparts.com\/blog\/#organization","name":"CarParts.com","url":"https:\/\/www.carparts.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","width":2048,"height":398,"caption":"CarParts.com"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/carpartscom","https:\/\/x.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"]},{"@type":"Person","@id":"","url":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/how-multifunction-switch-works.jpg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/11\/how-multifunction-switch-works.jpg","author_info":{"display_name":"","author_link":"https:\/\/www.carparts.com\/blog\/multifunction-switch-what-it-is-how-it-works-when-to-replace-and-more\/"},"authors":[{"term_id":2607,"user_id":1651,"is_guest":0,"slug":"thecpteam","display_name":"CarParts.com Research Team","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/121737","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=121737"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/121737\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/121739"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=121737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=121737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=121737"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=121737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}