{"id":8926,"date":"2025-06-06T17:38:32","date_gmt":"2025-06-06T09:38:32","guid":{"rendered":"https:\/\/totcables.com\/?p=8926"},"modified":"2025-06-06T17:38:32","modified_gmt":"2025-06-06T09:38:32","slug":"6-wire-trailer-plug-color-code-complete-wiring-guide","status":"publish","type":"post","link":"https:\/\/totcables.com\/?p=8926","title":{"rendered":"6-Wire Trailer Plug Color Code: Complete Wiring Guide"},"content":{"rendered":"<p>{&#8220;main-title&#8221;:{&#8220;component&#8221;:&#8221;hc_title&#8221;,&#8221;id&#8221;:&#8221;main-title&#8221;,&#8221;title&#8221;:&#8221;&#8221;,&#8221;subtitle&#8221;:&#8221;The 6-pin trailer plug (also called 6-way or 6-round) is commonly used on utility trailers, horse trailers, and small campers. Knowing the correct 6-wire trailer plug color code ensures proper lighting, brake, and power functions between your tow vehicle and trailer.&#8221;,&#8221;title_content&#8221;:{&#8220;component&#8221;:&#8221;hc_title_image&#8221;,&#8221;id&#8221;:&#8221;title-image&#8221;,&#8221;image&#8221;:&#8221;https:\/\/totcables.com\/wp-content\/uploads\/2025\/06\/6-wire-trailer-plug-color-code.jpg|130|386|8928&#8243;,&#8221;full_screen&#8221;:false,&#8221;full_screen_height&#8221;:&#8221;&#8221;,&#8221;parallax&#8221;:false,&#8221;bleed&#8221;:&#8221;&#8221;,&#8221;ken_burn&#8221;:&#8221;&#8221;,&#8221;overlay&#8221;:&#8221;transparent-dark&#8221;,&#8221;breadcrumbs&#8221;:true,&#8221;white&#8221;:true,&#8221;position&#8221;:&#8221;&#8221;}},&#8221;section_5ZtkF&#8221;:{&#8220;component&#8221;:&#8221;hc_section&#8221;,&#8221;id&#8221;:&#8221;section_5ZtkF&#8221;,&#8221;section_width&#8221;:&#8221;&#8221;,&#8221;animation&#8221;:&#8221;&#8221;,&#8221;animation_time&#8221;:&#8221;&#8221;,&#8221;timeline_animation&#8221;:&#8221;&#8221;,&#8221;timeline_delay&#8221;:&#8221;&#8221;,&#8221;timeline_order&#8221;:&#8221;&#8221;,&#8221;vertical_row&#8221;:&#8221;&#8221;,&#8221;box_middle&#8221;:&#8221;&#8221;,&#8221;css_classes&#8221;:&#8221;&#8221;,&#8221;custom_css_classes&#8221;:&#8221;&#8221;,&#8221;custom_css_styles&#8221;:&#8221;&#8221;,&#8221;section_content&#8221;:[{&#8220;component&#8221;:&#8221;hc_column&#8221;,&#8221;id&#8221;:&#8221;column_vtfQF&#8221;,&#8221;column_width&#8221;:&#8221;col-md-12&#8243;,&#8221;animation&#8221;:&#8221;&#8221;,&#8221;animation_time&#8221;:&#8221;&#8221;,&#8221;timeline_animation&#8221;:&#8221;&#8221;,&#8221;timeline_delay&#8221;:&#8221;&#8221;,&#8221;timeline_order&#8221;:&#8221;&#8221;,&#8221;css_classes&#8221;:&#8221;&#8221;,&#8221;custom_css_classes&#8221;:&#8221;&#8221;,&#8221;custom_css_styles&#8221;:&#8221;&#8221;,&#8221;main_content&#8221;:[{&#8220;component&#8221;:&#8221;hc_wp_editor&#8221;,&#8221;id&#8221;:&#8221;Xhugf&#8221;,&#8221;css_classes&#8221;:&#8221;&#8221;,&#8221;custom_css_classes&#8221;:&#8221;&#8221;,&#8221;custom_css_styles&#8221;:&#8221;&#8221;,&#8221;editor_content&#8221;:&#8221;<\/p>\n<p data-start='246' data-end='521'>The <strong data-start='250' data-end='272'>6-pin trailer plug<\/strong> (also called 6-way or 6-round) is commonly used on utility trailers, horse trailers, and small campers. Knowing the correct <strong data-start='397' data-end='431'>6-wire trailer plug color code<\/strong> ensures proper lighting, brake, and power functions between your tow vehicle and trailer.<\/p>\n<p>\\n\\n\\n<div id=\"attachment_8928\" style=\"width: 396px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-8928\" class='wp-image-8928 size-full' src='https:\/\/totcables.com\/wp-content\/uploads\/2025\/06\/6-wire-trailer-plug-color-code.jpg' alt='6-wire trailer plug color code' width='386' height='130'><p id=\"caption-attachment-8928\" class=\"wp-caption-text\">6-wire trailer plug color code<\/p><\/div>\\n<\/p>\n<p data-start='523' data-end='650'>This guide covers the standard color codes, wiring layout, and tips to help you wire or troubleshoot a 6-way trailer connector.<\/p>\n<p>\\n\\n\\n<\/p>\n<hr data-start='652' data-end='655'>\\n\\n<\/p>\n<h2 data-start='657' data-end='714'>\ud83c\udfaf Standard 6-Wire Trailer Plug Color Code &amp; Functions<\/h2>\n<p>\\n<\/p>\n<div class='_tableContainer_16hzy_1'>\\n<\/p>\n<div class='_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse' tabindex='-1'>\\n<\/p>\n<table class='w-fit min-w-(--thread-content-width)' data-start='716' data-end='1347'>\\n<\/p>\n<thead data-start='716' data-end='794'>\\n<\/p>\n<tr data-start='716' data-end='794'>\\n<\/p>\n<th data-start='716' data-end='737' data-col-size='sm'><strong data-start='718' data-end='732'>Wire Color<\/strong><\/th>\n<p>\\n<\/p>\n<th data-start='737' data-end='772' data-col-size='sm'><strong data-start='739' data-end='751'>Function<\/strong><\/th>\n<p>\\n<\/p>\n<th data-start='772' data-end='794' data-col-size='sm'><strong data-start='774' data-end='792'>Terminal Label<\/strong><\/th>\n<p>\\n<\/tr>\n<p>\\n<\/thead>\n<p>\\n<\/p>\n<tbody data-start='874' data-end='1347'>\\n<\/p>\n<tr data-start='874' data-end='952'>\\n<\/p>\n<td data-start='874' data-end='895' data-col-size='sm'><strong data-start='876' data-end='885'>White<\/strong><\/td>\n<p>\\n<\/p>\n<td data-start='895' data-end='930' data-col-size='sm'>Ground<\/td>\n<p>\\n<\/p>\n<td data-start='930' data-end='952' data-col-size='sm'>G<\/td>\n<p>\\n<\/tr>\n<p>\\n<\/p>\n<tr data-start='953' data-end='1031'>\\n<\/p>\n<td data-start='953' data-end='974' data-col-size='sm'><strong data-start='955' data-end='964'>Brown<\/strong><\/td>\n<p>\\n<\/p>\n<td data-start='974' data-end='1009' data-col-size='sm'>Tail\/running lights<\/td>\n<p>\\n<\/p>\n<td data-start='1009' data-end='1031' data-col-size='sm'>T<\/td>\n<p>\\n<\/tr>\n<p>\\n<\/p>\n<tr data-start='1032' data-end='1110'>\\n<\/p>\n<td data-start='1032' data-end='1053' data-col-size='sm'><strong data-start='1034' data-end='1044'>Yellow<\/strong><\/td>\n<p>\\n<\/p>\n<td data-start='1053' data-end='1088' data-col-size='sm'>Left turn signal &amp; brake light<\/td>\n<p>\\n<\/p>\n<td data-start='1088' data-end='1110' data-col-size='sm'>LT<\/td>\n<p>\\n<\/tr>\n<p>\\n<\/p>\n<tr data-start='1111' data-end='1189'>\\n<\/p>\n<td data-start='1111' data-end='1132' data-col-size='sm'><strong data-start='1113' data-end='1122'>Green<\/strong><\/td>\n<p>\\n<\/p>\n<td data-start='1132' data-end='1167' data-col-size='sm'>Right turn signal &amp; brake light<\/td>\n<p>\\n<\/p>\n<td data-start='1167' data-end='1189' data-col-size='sm'>RT<\/td>\n<p>\\n<\/tr>\n<p>\\n<\/p>\n<tr data-start='1190' data-end='1268'>\\n<\/p>\n<td data-start='1190' data-end='1211' data-col-size='sm'><strong data-start='1192' data-end='1200'>Blue<\/strong><\/td>\n<p>\\n<\/p>\n<td data-start='1211' data-end='1246' data-col-size='sm'>Electric trailer brakes<\/td>\n<p>\\n<\/p>\n<td data-start='1246' data-end='1268' data-col-size='sm'>S (Brake)<\/td>\n<p>\\n<\/tr>\n<p>\\n<\/p>\n<tr data-start='1269' data-end='1347'>\\n<\/p>\n<td data-start='1269' data-end='1290' data-col-size='sm'><strong data-start='1271' data-end='1287'>Red or Black<\/strong><\/td>\n<p>\\n<\/p>\n<td data-start='1290' data-end='1325' data-col-size='sm'>12V Auxiliary power (battery)<\/td>\n<p>\\n<\/p>\n<td data-start='1325' data-end='1347' data-col-size='sm'>A<\/td>\n<p>\\n<\/tr>\n<p>\\n<\/tbody>\n<p>\\n<\/table>\n<p>\\n<\/p>\n<div class='sticky end-(--thread-content-margin) h-0 self-end select-none'>\\n<\/p>\n<div class='absolute end-0 flex items-end'><\/div>\n<p>\\n<\/p><\/div>\n<p>\\n<\/p><\/div>\n<p>\\n<\/p><\/div>\n<p>\\n<\/p>\n<blockquote data-start='1349' data-end='1472'><p>\\n<\/p>\n<p data-start='1351' data-end='1472'>\u26a0\ufe0f <strong data-start='1354' data-end='1363'>Note:<\/strong> Color codes may vary slightly depending on manufacturer, but these are the most commonly accepted standards.<\/p>\n<p>\\n<\/p><\/blockquote>\n<p>\\n\\n<\/p>\n<hr data-start='1474' data-end='1477'>\\n\\n<\/p>\n<h2 data-start='1479' data-end='1538'>\ud83d\udd0c 6-Pin Trailer Plug Terminal Diagram (Round Pin Style)<\/h2>\n<p>\\n<\/p>\n<div class='contain-inline-size rounded-2xl border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary'>\\n<\/p>\n<div class='sticky top-9'>\\n<\/p>\n<div class='absolute end-0 bottom-0 flex h-9 items-center pe-2'><\/div>\n<p>\\n<\/p><\/div>\n<p>\\n<\/p><\/div>\n<p>\\n<\/p>\n<blockquote data-start='1839' data-end='1977'><p>\\n\\n<div id=\"attachment_8927\" style=\"width: 676px\" class=\"wp-caption alignnone\"><img aria-describedby=\"caption-attachment-8927\" class='wp-image-8927 size-full' src='https:\/\/totcables.com\/wp-content\/uploads\/2025\/06\/6-Pin-Trailer-Plug-Terminal-Diagram.png' alt='6-Pin Trailer Plug Terminal Diagram' width='666' height='212'><p id=\"caption-attachment-8927\" class=\"wp-caption-text\">6-Pin Trailer Plug Terminal Diagram<\/p><\/div>\\n<\/p>\n<p data-start='1841' data-end='1977'>\ud83d\udcdd <strong data-start='1844' data-end='1860'>Pin position<\/strong> may vary by plug type (round, square, or blade), so always verify with a multimeter or test light before connecting.<\/p>\n<p>\\n<\/p><\/blockquote>\n<p>\\n\\n<\/p>\n<hr data-start='1979' data-end='1982'>\\n\\n<\/p>\n<h2 data-start='1984' data-end='2008'>\ud83d\udd0d Function Breakdown<\/h2>\n<p>\\n<\/p>\n<h3 data-start='2010' data-end='2034'>\u26aa White \u2013 Ground (G)<\/h3>\n<p>\\n<\/p>\n<ul data-start='2035' data-end='2133'>\\n \\t<\/p>\n<li data-start='2035' data-end='2082'>\\n\n<p data-start='2037' data-end='2082'>Connects trailer frame to tow vehicle ground.<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='2083' data-end='2133'>\\n\n<p data-start='2085' data-end='2133'><strong data-start='2085' data-end='2133'>Most critical wire for safety and operation.<\/strong><\/p>\n<p>\\n<\/li>\n<p>\\n<\/ul>\n<p>\\n<\/p>\n<h3 data-start='2135' data-end='2173'>\ud83d\udfe4 Brown \u2013 Tail\/Running Lights (T)<\/h3>\n<p>\\n<\/p>\n<ul data-start='2174' data-end='2294'>\\n \\t<\/p>\n<li data-start='2174' data-end='2240'>\\n\n<p data-start='2176' data-end='2240'>Powers tail lights, license plate light, and side marker lights.<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='2241' data-end='2294'>\\n\n<p data-start='2243' data-end='2294'>Activated when headlights or parking lights are on.<\/p>\n<p>\\n<\/li>\n<p>\\n<\/ul>\n<p>\\n<\/p>\n<h3 data-start='2296' data-end='2341'>\ud83d\udfe1 Yellow \u2013 Left Turn Signal \/ Brake (LT)<\/h3>\n<p>\\n<\/p>\n<ul data-start='2342' data-end='2400'>\\n \\t<\/p>\n<li data-start='2342' data-end='2400'>\\n\n<p data-start='2344' data-end='2400'>Combined wire for left turn signal and left brake light.<\/p>\n<p>\\n<\/li>\n<p>\\n<\/ul>\n<p>\\n<\/p>\n<h3 data-start='2402' data-end='2447'>\ud83d\udfe2 Green \u2013 Right Turn Signal \/ Brake (RT)<\/h3>\n<p>\\n<\/p>\n<ul data-start='2448' data-end='2508'>\\n \\t<\/p>\n<li data-start='2448' data-end='2508'>\\n\n<p data-start='2450' data-end='2508'>Combined wire for right turn signal and right brake light.<\/p>\n<p>\\n<\/li>\n<p>\\n<\/ul>\n<p>\\n<\/p>\n<h3 data-start='2510' data-end='2542'>\ud83d\udd35 Blue \u2013 Trailer Brakes (S)<\/h3>\n<p>\\n<\/p>\n<ul data-start='2543' data-end='2619'>\\n \\t<\/p>\n<li data-start='2543' data-end='2619'>\\n\n<p data-start='2545' data-end='2619'>Supplies power from the brake controller to the trailer&#8217;s electric brakes.<\/p>\n<p>\\n<\/li>\n<p>\\n<\/ul>\n<p>\\n<\/p>\n<h3 data-start='2621' data-end='2665'>\ud83d\udd34 Red or \u26ab Black \u2013 12V Power Supply (A)<\/h3>\n<p>\\n<\/p>\n<ul data-start='2666' data-end='2784'>\\n \\t<\/p>\n<li data-start='2666' data-end='2738'>\\n\n<p data-start='2668' data-end='2738'>Used to charge trailer battery, power interior lights, or accessories.<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='2739' data-end='2784'>\\n\n<p data-start='2741' data-end='2784'>May require inline fuse or circuit breaker.<\/p>\n<p>\\n<\/li>\n<p>\\n<\/ul>\n<p>\\n\\n<\/p>\n<hr data-start='2786' data-end='2789'>\\n\\n<\/p>\n<h2 data-start='2791' data-end='2831'>\ud83e\uddf0 Tips for Wiring or Troubleshooting<\/h2>\n<p>\\n<\/p>\n<ul data-start='2833' data-end='3177'>\\n \\t<\/p>\n<li data-start='2833' data-end='2904'>\\n\n<p data-start='2835' data-end='2904'>\u2705 <strong data-start='2837' data-end='2861'>Always test each pin<\/strong> on the vehicle side with a circuit tester.<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='2905' data-end='2978'>\\n\n<p data-start='2907' data-end='2978'>\u2705 <strong data-start='2909' data-end='2934'>Use dielectric grease<\/strong> to prevent corrosion in trailer connectors.<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='2979' data-end='3033'>\\n\n<p data-start='2981' data-end='3033'>\u2705 <strong data-start='2983' data-end='3006'>Label wires clearly<\/strong> when replacing connectors.<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='3034' data-end='3099'>\\n\n<p data-start='3036' data-end='3099'>\u2705 <strong data-start='3038' data-end='3055'>Check grounds<\/strong>\u2014poor grounding causes many lighting issues.<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='3100' data-end='3177'>\\n\n<p data-start='3102' data-end='3177'>\u26a0\ufe0f <strong data-start='3105' data-end='3129'>Do not assume colors<\/strong>\u2014always confirm wire function before connecting.<\/p>\n<p>\\n<\/li>\n<p>\\n<\/ul>\n<p>\\n\\n<\/p>\n<hr data-start='3179' data-end='3182'>\\n\\n<\/p>\n<h2 data-start='3184' data-end='3230'>\ud83d\ude9a Applications of 6-Pin Trailer Connectors<\/h2>\n<p>\\n<\/p>\n<ul data-start='3232' data-end='3375'>\\n \\t<\/p>\n<li data-start='3232' data-end='3248'>\\n\n<p data-start='3234' data-end='3248'>Horse trailers<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='3249' data-end='3274'>\\n\n<p data-start='3251' data-end='3274'>Enclosed cargo trailers<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='3275' data-end='3304'>\\n\n<p data-start='3277' data-end='3304'>Small campers (with brakes)<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='3305' data-end='3346'>\\n\n<p data-start='3307' data-end='3346'>Utility trailers with extra accessories<\/p>\n<p>\\n<\/li>\n<p>\\n \\t<\/p>\n<li data-start='3347' data-end='3375'>\\n\n<p data-start='3349' data-end='3375'>Older RVs or farm trailers<\/p>\n<p>\\n<\/li>\n<p>\\n<\/ul>\n<p>\\n<\/p>\n<blockquote data-start='3377' data-end='3551'><p>\\n<\/p>\n<p data-start='3379' data-end='3551'>For <strong data-start='3383' data-end='3410'>trailers without brakes<\/strong>, a 4-pin connector is usually sufficient. For <strong data-start='3457' data-end='3482'>more complex trailers<\/strong> (backup lights, reverse lockout, etc.), a 7-pin plug is recommended.<\/p>\n<p>\\n<\/p><\/blockquote>\n<p>\\n\\n<\/p>\n<hr data-start='3553' data-end='3556'>\\n\\n<\/p>\n<h2 data-start='3558' data-end='3574'>\ud83d\udd1a Conclusion<\/h2>\n<p>\\n<\/p>\n<p data-start='3576' data-end='3822'>The <strong data-start='3580' data-end='3614'>6-wire trailer plug color code<\/strong> helps ensure safe, functional connections between your vehicle and trailer. Always confirm both color and function before wiring, and test thoroughly to avoid brake, lighting, or charging issues on the road.<\/p>\n<p>&#8220;}]}],&#8221;section_settings&#8221;:&#8221;&#8221;},&#8221;scripts&#8221;:{},&#8221;css&#8221;:{},&#8221;css_page&#8221;:&#8221;&#8221;,&#8221;template_setting&#8221;:{&#8220;settings&#8221;:{&#8220;id&#8221;:&#8221;settings&#8221;}},&#8221;template_setting_top&#8221;:{},&#8221;page_setting&#8221;:{&#8220;settings&#8221;:[&#8220;lock-mode-off&#8221;]},&#8221;post_type_setting&#8221;:{&#8220;settings&#8221;:{&#8220;image&#8221;:&#8221;https:\/\/totcables.com\/wp-content\/uploads\/2025\/06\/6-wire-trailer-plug-color-code.jpg|130|386|8928&#8243;,&#8221;excerpt&#8221;:&#8221;The 6-pin trailer plug (also called 6-way or 6-round) is commonly used on utility trailers, horse trailers, and small campers. Knowing the correct 6-wire trailer plug color code ensures proper lighting, brake, and power functions between your tow vehicle and trailer.&#8221;,&#8221;extra_1&#8243;:&#8221;&#8221;,&#8221;extra_2&#8243;:&#8221;&#8221;,&#8221;icon&#8221;:{&#8220;icon&#8221;:&#8221;&#8221;,&#8221;icon_style&#8221;:&#8221;&#8221;,&#8221;icon_image&#8221;:&#8221;&#8221;}}}}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;main-title&#8221;:{&#8220;component&#8221;:&#8221;hc_title&#8221;,&#8221;id&#8221;:&#8221;main-title&#8221;,&#8221;title&#8221;:&#8221;&#8221;,&#8221;subtitle&#8221;:&#8221;The 6-pin trailer plug (also called 6-way or 6-round) is commonly used on utility trailers, horse trailers, and small campers. 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