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This guide covers the most common headlight wire color codes across various car manufacturers, how to identify them, and practical tips for wiring and diagnostics.<\/p>\n
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Why Headlight Wire Color Code Matters<\/h2>\n
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The headlight system in your car typically includes low beam, high beam, ground, and sometimes DRL (Daytime Running Light) or signal wires. Each of these functions is controlled by a different wire, and manufacturers use color codes to distinguish them. If miswired, you could experience flickering lights, short circuits, or complete failure.<\/p>\n
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headlight wire color code<\/p><\/div>\\n<\/p>\n
Common Headlight Wire Color Codes<\/h2>\n
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Standard Color Codes (General Reference)<\/h3>\n
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| Wire Color<\/th>\n \\n<\/p>\n | Function<\/th>\n \\n<\/tr>\n \\n<\/thead>\n \\n<\/p>\n | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Black<\/strong><\/td>\n \\n<\/p>\n Ground (-)<\/td>\n | \\n<\/tr>\n \\n<\/p>\n Red<\/strong><\/td>\n | \\n<\/p>\n Power supply (+), sometimes high beam<\/td>\n | \\n<\/tr>\n \\n<\/p>\n Blue<\/strong><\/td>\n | \\n<\/p>\n Low beam or signal wire<\/td>\n | \\n<\/tr>\n \\n<\/p>\n White<\/strong><\/td>\n | \\n<\/p>\n High beam<\/td>\n | \\n<\/tr>\n \\n<\/p>\n Green<\/strong><\/td>\n | \\n<\/p>\n DRL or turn signal in some models<\/td>\n | \\n<\/tr>\n \\n<\/p>\n Yellow<\/strong><\/td>\n | \\n<\/p>\n Low beam (used in many Japanese cars)<\/td>\n | \\n<\/tr>\n \\n<\/p>\n Brown<\/strong><\/td>\n | \\n<\/p>\n Tail or parking lights<\/td>\n | \\n<\/tr>\n \\n<\/p>\n Gray<\/strong><\/td>\n | \\n<\/p>\n Illumination or dimmer wire<\/td>\n | \\n<\/tr>\n \\n<\/tbody>\n \\n<\/table>\n \\n<\/p>\n \\n<\/p>\n <\/div>\n \\n<\/p><\/div>\n \\n<\/p><\/div>\n \\n<\/p><\/div>\n \\n<\/p>\n
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