{"id":7530,"date":"2026-01-16T17:30:00","date_gmt":"2026-01-16T17:30:00","guid":{"rendered":"https:\/\/ledingco.com\/?p=7530"},"modified":"2026-01-19T02:25:31","modified_gmt":"2026-01-19T02:25:31","slug":"khac-phuc-su-co-den-suong-mu-khong-hoat-dong","status":"publish","type":"post","link":"https:\/\/ledingco.com\/vi\/blog\/fog-lights-not-working-troubleshooting\/","title":{"rendered":"\u0110\u00e8n s\u01b0\u01a1ng m\u00f9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng? H\u01b0\u1edbng d\u1eabn kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 cho \u00f4 t\u00f4 (Kh\u00f4ng c\u1ea7n ph\u1ecfng \u0111o\u00e1n)"},"content":{"rendered":"<p>\u0110\u00e8n s\u01b0\u01a1ng m\u00f9 th\u01b0\u1eddng ch\u1ec9 \u0111\u01b0\u1ee3c ch\u00fa \u00fd khi th\u1eddi ti\u1ebft tr\u1edf n\u00ean x\u1ea5u \u0111i\u2014cho \u0111\u1ebfn khi ch\u00fang kh\u00f4ng th\u1ec3 b\u1eadt l\u00ean \u0111\u01b0\u1ee3c n\u1eefa. L\u00fac \u0111\u00f3, n\u00f3 kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t t\u00ednh n\u0103ng \u201cc\u00f3 c\u0169ng \u0111\u01b0\u1ee3c, kh\u00f4ng c\u00f3 c\u0169ng kh\u00f4ng sao\u201d; m\u00e0 tr\u1edf th\u00e0nh m\u1ed9t v\u1ea5n \u0111\u1ec1 n\u1eefa m\u00e0 b\u1ea1n ph\u1ea3i gi\u1ea3i quy\u1ebft trong gara tr\u01b0\u1edbc khi \u0111i l\u00e0m trong m\u01b0a, \u0111i du l\u1ecbch m\u00f9a \u0111\u00f4ng ho\u1eb7c ki\u1ec3m tra xe.<\/p>\n\n\n\n<p>B\u00e0i vi\u1ebft n\u00e0y d\u00e0nh cho kho\u1ea3nh kh\u1eafc \u0111\u00f3.<\/p>\n\n\n\n<p>Thay v\u00ec \u0111\u1ec1 c\u1eadp \u0111\u1ebfn vi\u1ec7c n\u00ean mua lo\u1ea1i \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 n\u00e0o, c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft, khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng ch\u00fang ho\u1eb7c chi ph\u00ed c\u1ee7a ch\u00fang, b\u00e0i vi\u1ebft n\u00e0y t\u1eadp trung v\u00e0o m\u1ed9t \u0111i\u1ec1u duy nh\u1ea5t: <strong>C\u00e1ch ch\u1ea9n \u0111o\u00e1n v\u00e0 kh\u1eafc ph\u1ee5c c\u00e1c s\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p c\u1ee7a \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 tr\u00ean xe \u00f4 t\u00f4 th\u1ef1c t\u1ebf<\/strong>\u2014t\u1eeb m\u1ed9t v\u1ee5 n\u1ed5 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Fuse_(electrical)\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Fuse_(electrical)\" target=\"_blank\" rel=\"noopener\">c\u1ea7u ch\u00ec<\/a> \u0111\u1ebfn m\u1ed9t \u0111\u1ea7u n\u1ed1i b\u1ecb \u0103n m\u00f2n do \u0111\u1ed9 \u1ea9m b\u00ean trong v\u1ecf.<\/p>\n\n\n\n<p>N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm <strong><a href=\"https:\/\/ledingco.com\/vi\/den-suong-mu\/\" data-type=\"page\" data-id=\"3694\">\u0110\u00e8n s\u01b0\u01a1ng m\u00f9<\/a><\/strong> v\u1ea5n \u0111\u1ec1 ho\u1eb7c m\u1ed9t <strong>\u0110\u00e8n s\u01b0\u01a1ng m\u00f9 cho \u00f4 t\u00f4<\/strong> N\u1ebfu v\u1ea5n \u0111\u1ec1 \u0111\u00f3 c\u1ee9 ti\u1ebfp t\u1ee5c g\u00e2y r\u1eafc r\u1ed1i, h\u00e3y b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u00e2y v\u00e0 gi\u1ea3i quy\u1ebft t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi. H\u1ea7u h\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 \u0111\u1ec1u \u0111\u01a1n gi\u1ea3n h\u01a1n so v\u1edbi v\u1ebb b\u1ec1 ngo\u00e0i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng th\u1ee9 b\u1ea1n c\u1ea7n (gi\u1eef cho \u0111\u01a1n gi\u1ea3n)<\/h2>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u \u0111i\u1ec1u v\u1edbi nh\u1eefng c\u00f4ng c\u1ee5 c\u01a1 b\u1ea3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u00e8n pin<\/li>\n\n\n\n<li>G\u0103ng tay v\u00e0 m\u1ed9t tua v\u00edt ph\u1eb3ng nh\u1ecf (d\u00f9ng cho c\u00e1c k\u1eb9p\/n\u1eafp)<\/li>\n\n\n\n<li>M\u00e1y \u0111o \u0111a n\u0103ng <em>ho\u1eb7c<\/em> \u0110\u00e8n th\u1eed 12V<\/li>\n\n\n\n<li>Ch\u1ea5t t\u1ea9y r\u1eeda ti\u1ebfp x\u00fac \/ Ch\u1ea5t t\u1ea9y r\u1eeda \u0111i\u1ec7n<\/li>\n\n\n\n<li>M\u1ed9t v\u00e0i c\u1ea7u ch\u00ec d\u1ef1 ph\u00f2ng (\u0111\u00fang ampe)<\/li>\n\n\n\n<li>C\u00e1c d\u1ee5ng c\u1ee5 c\u1ea7m tay c\u01a1 b\u1ea3n (c\u1edd-l\u00ea 10mm l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn)<\/li>\n<\/ul>\n\n\n\n<p>T\u00f9y ch\u1ecdn nh\u01b0ng h\u1eefu \u00edch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u00e1y qu\u00e9t OBD (d\u00e0nh cho c\u00e1c xe m\u1edbi c\u00f3 h\u1ec7 th\u1ed1ng theo d\u00f5i b\u00f3ng \u0111\u00e8n\/module)<\/li>\n\n\n\n<li>M\u1ee1 c\u00e1ch \u0111i\u1ec7n (d\u00f9ng cho c\u00e1c \u0111\u1ea7u n\u1ed1i, khi s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch)<\/li>\n\n\n\n<li>M\u1ed9t c\u00f4ng c\u1ee5 nh\u1ecf \u0111\u1ec3 th\u00e1o kh\u00f3a k\u1ebft n\u1ed1i<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"592\" height=\"442\" src=\"https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/car-headlights-and-fog-lights-on-at-night.webp\" alt=\"\u0110\u00e8n pha v\u00e0 \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 c\u1ee7a xe \u00f4 t\u00f4 \u0111\u01b0\u1ee3c b\u1eadt v\u00e0o ban \u0111\u00eam \u0111\u1ec3 chi\u1ebfu s\u00e1ng cho xe.\" class=\"wp-image-7707\" srcset=\"https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/car-headlights-and-fog-lights-on-at-night.webp 592w, https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/car-headlights-and-fog-lights-on-at-night-300x224.webp 300w, https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/car-headlights-and-fog-lights-on-at-night-16x12.webp 16w\" sizes=\"(max-width: 592px) 100vw, 592px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh lo\u1ea1i h\u1ec7 th\u1ed1ng \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 m\u00e0 b\u1ea1n \u0111ang s\u1eed d\u1ee5ng.<\/h2>\n\n\n\n<p>Tr\u01b0\u1edbc khi kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1, h\u00e3y x\u00e1c \u0111\u1ecbnh r\u00f5 v\u1ea5n \u0111\u1ec1 b\u1ea1n \u0111ang g\u1eb7p ph\u1ea3i. C\u00e2u \u201c\u0110\u00e8n s\u01b0\u01a1ng m\u00f9 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng\u201d c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u \u00fd ngh\u0129a kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i xe c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c c\u1ea5u h\u00ecnh th\u00f4ng d\u1ee5ng<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0110\u00e8n s\u01b0\u01a1ng m\u00f9 halogen c\u1ee7a nh\u00e0 m\u00e1y (m\u1ea1ch \u0111\u01a1n gi\u1ea3n)<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t: chuy\u1ec3n \u0111\u1ed5i \u2192 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Relay\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Relay\" target=\"_blank\" rel=\"noopener\">r\u01a1le<\/a> \u2192 c\u1ea7u ch\u00ec \u2192 b\u00f3ng \u0111\u00e8n \u2192 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Ground_(electricity)\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Ground_(electricity)\" target=\"_blank\" rel=\"noopener\">\u0111\u1ea5t<\/a><\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0110\u00e8n s\u01b0\u01a1ng m\u00f9 LED nh\u00e0 m\u00e1y (\u0111i\u1ec1u khi\u1ec3n b\u1eb1ng m\u00f4-\u0111un)<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u1edbi m\u00f4-\u0111un \u0111i\u1ec1u khi\u1ec3n th\u00e2n xe (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Body_control_module\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Body_control_module\" target=\"_blank\" rel=\"noopener\">Qu\u1ea3n l\u00fd r\u1ee7i ro kinh doanh (BCM)<\/a>)<\/li>\n\n\n\n<li>M\u1ed9t s\u1ed1 s\u1eed d\u1ee5ng tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n v\u00e0 c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb m\u00e3 l\u1ed7i.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0110\u00e8n s\u01b0\u01a1ng m\u00f9 sau th\u1ecb tr\u01b0\u1eddng cho \u00f4 t\u00f4 (d\u00e2y c\u00e1p + r\u01a1-le, ho\u1eb7c t\u00edch h\u1ee3p CANbus)<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c \u0111i\u1ec3m h\u1ecfng h\u00f3c b\u1ed5 sung: c\u1ea7u ch\u00ec trong m\u1ea1ch, r\u01a1le, \u0111\u1ea7u n\u1ed1i c\u1ea7u ch\u00ec, \u0111i\u1ec3m n\u1ed1i d\u00e2y, ti\u1ebfp \u0111\u1ea5t k\u00e9m.<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t d\u01b0\u1edbi d\u1ea1ng b\u1ed9 kit, h\u00e3y t\u00ecm:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea7u ch\u00ec trong m\u1ea1ch (th\u01b0\u1eddng n\u1eb1m g\u1ea7n \u1eafc-quy)<\/li>\n\n\n\n<li>V\u1ecb tr\u00ed c\u1ee7a tr\u1ea1m chuy\u1ec3n ti\u1ebfp<\/li>\n\n\n\n<li>N\u01a1i d\u00e2y \u0111ai \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t v\u1edbi khung xe.<\/li>\n<\/ul>\n\n\n\n<p>Ba y\u1ebfu t\u1ed1 \u0111\u00f3 gi\u1ea3i th\u00edch ph\u1ea7n l\u1edbn c\u00e1c tr\u01b0\u1eddng h\u1ee3p th\u1ea5t b\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 2: \u0110\u1ea3m b\u1ea3o xe cho ph\u00e9p \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 b\u1eadt l\u00ean.<\/h2>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 v\u1ebb qu\u00e1 c\u01a1 b\u1ea3n, nh\u01b0ng n\u00f3 gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng ki\u1ec3m tra nhanh khi\u1ebfn ng\u01b0\u1eddi ta v\u1ea5p ng\u00e3<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nhi\u1ec1u xe \u00f4 t\u00f4 y\u00eau c\u1ea7u <strong>\u0110\u00e8n pha th\u1ea5p ho\u1eb7c \u0111\u00e8n xi nhan b\u1eadt<\/strong> Tr\u01b0\u1edbc khi \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng.<\/li>\n\n\n\n<li>M\u1ed9t s\u1ed1 xe \u00f4 t\u00f4 t\u1eaft \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 khi <strong>\u0110\u00e8n pha \u0111ang b\u1eadt.<\/strong>.<\/li>\n\n\n\n<li>M\u1ed9t s\u1ed1 xe \u00f4 t\u00f4 kh\u00f4ng cho ph\u00e9p b\u1eadt \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 ph\u00eda sau tr\u1eeb khi \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 ph\u00eda tr\u01b0\u1edbc \u0111\u00e3 \u0111\u01b0\u1ee3c b\u1eadt (t\u00f9y thu\u1ed9c v\u00e0o th\u1ecb tr\u01b0\u1eddng).<\/li>\n\n\n\n<li>M\u1ed9t s\u1ed1 xe t\u1ef1 \u0111\u1ed9ng t\u1eaft \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 sau khi t\u1eaft ch\u00eca kh\u00f3a; m\u1ed9t s\u1ed1 kh\u00e1c ghi nh\u1edb tr\u1ea1ng th\u00e1i cu\u1ed1i c\u00f9ng.<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu \u0111\u00e8n b\u00e1o \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng s\u00e1ng khi b\u1ea1n b\u1eadt ch\u00fang, \u0111\u00f3 l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u00e2y c\u00f3 th\u1ec3 l\u00e0 v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n (c\u00f4ng t\u1eafc, logic BCM, l\u1eadp tr\u00ecnh, \u0111i\u1ec1u khi\u1ec3n r\u01a1-le).<\/li>\n\n\n\n<li>Kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 b\u00f3ng \u0111\u00e8n\/v\u1ecf \u0111\u00e8n.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 3: Ch\u1ea9n \u0111o\u00e1n d\u1ef1a tr\u00ean tri\u1ec7u ch\u1ee9ng (con \u0111\u01b0\u1eddng nhanh nh\u1ea5t)<\/h2>\n\n\n\n<p>Thay v\u00ec ki\u1ec3m tra ng\u1eabu nhi\u00ean m\u1ecdi th\u1ee9, h\u00e3y s\u1eed d\u1ee5ng tri\u1ec7u ch\u1ee9ng \u0111\u1ec3 ch\u1ecdn c\u00e1c ki\u1ec3m tra ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tri\u1ec7u ch\u1ee9ng A: C\u1ea3 hai \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 kh\u00f4ng s\u00e1ng.<\/h3>\n\n\n\n<p>Nguy\u00ean nh\u00e2n c\u00f3 kh\u1ea3 n\u0103ng cao nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea7u ch\u00ec b\u1ecb ch\u00e1y (c\u1ea7u ch\u00ec s\u01b0\u01a1ng m\u00f9 ch\u00ednh ho\u1eb7c c\u1ea7u ch\u00ec trong d\u00e2y d\u1eabn)<\/li>\n\n\n\n<li>R\u01a1le h\u1ecfng<\/li>\n\n\n\n<li>Kh\u00f4ng c\u00f3 ngu\u1ed3n \u0111i\u1ec7n (v\u1ea5n \u0111\u1ec1 k\u1ebft n\u1ed1i pin, v\u1ea5n \u0111\u1ec1 c\u1ea7u ch\u00ec)<\/li>\n\n\n\n<li>V\u1ea5n \u0111\u1ec1 \u0111i\u1ec1u khi\u1ec3n c\u00f4ng t\u1eafc\/BCM<\/li>\n\n\n\n<li>L\u1ed7i \u0111i\u1ec3m chung (hi\u1ebfm g\u1eb7p h\u01a1n, nh\u01b0ng c\u00f3 th\u1ec3 x\u1ea3y ra)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Tri\u1ec7u ch\u1ee9ng B: Ch\u1ec9 m\u1ed9t b\u00ean ho\u1ea1t \u0111\u1ed9ng<\/h3>\n\n\n\n<p>Nguy\u00ean nh\u00e2n c\u00f3 kh\u1ea3 n\u0103ng cao nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u00f3ng \u0111\u00e8n b\u1ecb ch\u00e1y \/ b\u1ed9 LED h\u1ecfng \u1edf m\u1ed9t b\u00ean<\/li>\n\n\n\n<li>K\u1ebft n\u1ed1i k\u00e9m \u1edf ph\u00eda \u0111\u00f3<\/li>\n\n\n\n<li>V\u1ea5n \u0111\u1ec1 \u0111\u1ecba ph\u01b0\u01a1ng \u1edf ph\u00eda \u0111\u00f3<\/li>\n\n\n\n<li>D\u00e2y \u0111i\u1ec7n b\u1ecb h\u01b0 h\u1ecfng \u1edf ph\u00eda \u0111\u00f3 (b\u1ecb m\u00e0i m\u00f2n, b\u1ecb k\u1eb9p, h\u01b0 h\u1ecfng do va \u0111\u1eadp)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Tri\u1ec7u ch\u1ee9ng C: \u0110\u00e8n s\u01b0\u01a1ng m\u00f9 \u0111\u00f4i khi t\u1ef1 \u0111\u1ed9ng b\u1eadt, nh\u1ea5p nh\u00e1y ho\u1eb7c t\u1eaft \u0111\u1ed9t ng\u1ed9t khi \u0111i qua \u1ed5 g\u00e0.<\/h3>\n\n\n\n<p>Nguy\u00ean nh\u00e2n c\u00f3 kh\u1ea3 n\u0103ng cao nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1c ch\u00e2n k\u1ebft n\u1ed1i l\u1ecfng l\u1ebbo<\/li>\n\n\n\n<li>S\u1ef1 \u0103n m\u00f2n b\u00ean trong connector<\/li>\n\n\n\n<li>\u0110\u1ea5t y\u1ebfu<\/li>\n\n\n\n<li>R\u01a1le c\u00f3 ti\u1ebfp \u0111i\u1ec3m k\u00e9m<\/li>\n\n\n\n<li>D\u00e2y \u0111i\u1ec7n kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh (b\u1ecb m\u00e0i m\u00f2n\/c\u0103ng th\u1eb3ng)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Tri\u1ec7u ch\u1ee9ng D: \u0110\u00e8n s\u01b0\u01a1ng m\u00f9 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, nh\u01b0ng b\u00ean trong v\u1ecf \u0111\u00e8n c\u00f3 h\u01a1i \u1ea9m\/s\u01b0\u01a1ng m\u00f9.<\/h3>\n\n\n\n<p>Nguy\u00ean nh\u00e2n c\u00f3 kh\u1ea3 n\u0103ng cao nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ecdng s\u01b0\u01a1ng b\u00ecnh th\u01b0\u1eddng so v\u1edbi r\u00f2 r\u1ec9 th\u1ef1c s\u1ef1 (hai hi\u1ec7n t\u01b0\u1ee3ng kh\u00e1c nhau)<\/li>\n\n\n\n<li>Ph\u1edbt\/mi\u1ebfng \u0111\u1ec7m b\u1ecb h\u1ecfng<\/li>\n\n\n\n<li>Thi\u1ebfu n\u1eafp sau ho\u1eb7c n\u1eafp kh\u00f4ng \u0111\u01b0\u1ee3c l\u1eafp ch\u1eb7t.<\/li>\n\n\n\n<li>L\u1ed7 th\u00f4ng h\u01a1i b\u1ecb t\u1eafc<\/li>\n\n\n\n<li>V\u1ebft n\u1ee9t tr\u00ean \u1ed1ng k\u00ednh\/v\u1ecf (th\u01b0\u1eddng do m\u1ea3nh v\u1ee1 tr\u00ean \u0111\u01b0\u1eddng)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Tri\u1ec7u ch\u1ee9ng E: \u0110\u00e8n s\u01b0\u01a1ng m\u00f9 k\u00edch ho\u1ea1t c\u1ea3nh b\u00e1o, l\u1ed7i ho\u1eb7c th\u00f4ng b\u00e1o tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/h3>\n\n\n\n<p>Nguy\u00ean nh\u00e2n c\u00f3 kh\u1ea3 n\u0103ng cao nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i LED ti\u00eau th\u1ee5 d\u00f2ng \u0111i\u1ec7n \u00edt h\u01a1n\/nhi\u1ec1u h\u01a1n so v\u1edbi d\u1ef1 ki\u1ebfn.<\/li>\n\n\n\n<li>Xung \u0111\u1ed9t gi\u00e1m s\u00e1t b\u00f3ng \u0111\u00e8n BCM<\/li>\n\n\n\n<li>M\u00f4-\u0111un \u0111i\u1ec1u khi\u1ec3n b\u1ecb l\u1ed7i<\/li>\n\n\n\n<li>\u0110i\u1ec7n tr\u1edf d\u00e2y d\u1eabn thay \u0111\u1ed5i do \u0103n m\u00f2n.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"828\" height=\"592\" src=\"https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/white-car-fog-lights-daytime-function-check.webp\" alt=\"Xe \u00f4 t\u00f4 m\u00e0u tr\u1eafng c\u00f3 \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 b\u1eadt trong ban ng\u00e0y \u0111\u1ec3 ki\u1ec3m tra \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a xe.\" class=\"wp-image-7709\" srcset=\"https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/white-car-fog-lights-daytime-function-check.webp 828w, https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/white-car-fog-lights-daytime-function-check-300x214.webp 300w, https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/white-car-fog-lights-daytime-function-check-768x549.webp 768w, https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/white-car-fog-lights-daytime-function-check-18x12.webp 18w\" sizes=\"(max-width: 828px) 100vw, 828px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 4: Ki\u1ec3m tra \u0111i\u1ec7n trong 10 ph\u00fat (ngu\u1ed3n \u0111i\u1ec7n, c\u1ea7u ch\u00ec, r\u01a1le, ti\u1ebfp \u0111\u1ea5t)<\/h2>\n\n\n\n<p>\u0110\u00e2y l\u00e0 quy tr\u00ecnh l\u00e0m vi\u1ec7c ch\u00ednh. \u0110\u1eebng b\u1ecf qua n\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 Ki\u1ec3m tra c\u1ea7u ch\u00ec tr\u01b0\u1edbc ti\u00ean.<\/h3>\n\n\n\n<p>C\u00f3 th\u1ec3 c\u00f3 h\u01a1n m\u1ed9t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <strong>C\u1ea7u ch\u00ec nh\u00e0 m\u00e1y<\/strong> trong h\u1ed9p c\u1ea7u ch\u00ec<\/li>\n\n\n\n<li>M\u1ed9t <strong>C\u1ea7u ch\u00ec trong m\u1ea1ch<\/strong> trong b\u1ed9 d\u00e2y c\u00e1p sau th\u1ecb tr\u01b0\u1eddng<\/li>\n<\/ul>\n\n\n\n<p>C\u1ea7n l\u00e0m g\u00ec:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>K\u00e9o c\u1ea7u ch\u00ec ra v\u00e0 ki\u1ec3m tra n\u00f3 (kh\u00f4ng ch\u1ec9 nh\u00ecn qua l\u1edbp nh\u1ef1a \u2014 h\u00e3y ki\u1ec3m tra d\u1ea3i kim lo\u1ea1i).<\/li>\n\n\n\n<li>Thay th\u1ebf b\u1eb1ng <strong>C\u00f9ng c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n<\/strong> ch\u1ec9<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu n\u00f3 l\u1ea1i th\u1ed5i ngay l\u1eadp t\u1ee9c, c\u00f3 th\u1ec3 b\u1ea1n \u0111ang g\u1eb7p ph\u1ea3i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1eadp \u0111i\u1ec7n (v\u1ecf c\u00e1ch \u0111i\u1ec7n c\u1ee7a d\u00e2y b\u1ecb h\u1ecfng)<\/li>\n\n\n\n<li>N\u01b0\u1edbc x\u00e2m nh\u1eadp v\u00e0o \u0111\u1ea7u n\u1ed1i<\/li>\n\n\n\n<li>\u0110\u1ea5u n\u1ed1i sai ho\u1eb7c d\u00e2y c\u00e1p b\u1ecb k\u1eb9p<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 Ki\u1ec3m tra r\u01a1-le (n\u1ebfu c\u00f3)<\/h3>\n\n\n\n<p>C\u00e1c r\u01a1-le th\u01b0\u1eddng h\u1ecfng h\u00f3c nhi\u1ec1u h\u01a1n so v\u1edbi d\u1ef1 \u0111o\u00e1n c\u1ee7a m\u1ecdi ng\u01b0\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi ch\u00fang \u0111\u00e3 ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m.<\/p>\n\n\n\n<p>Ki\u1ec3m tra nhanh c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Thay th\u1ebf b\u1eb1ng m\u1ed9t r\u01a1-le t\u01b0\u01a1ng t\u1ef1 (n\u1ebfu h\u1ed9p c\u1ea7u ch\u00ec c\u1ee7a b\u1ea1n s\u1eed d\u1ee5ng c\u00f9ng lo\u1ea1i r\u01a1-le \u1edf v\u1ecb tr\u00ed kh\u00e1c)<\/li>\n\n\n\n<li>Nghe\/c\u1ea3m nh\u1eadn ti\u1ebfng click khi b\u1eadt \u0111\u00e8n s\u01b0\u01a1ng m\u00f9.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng \u0111\u1ec3 ki\u1ec3m tra xem ph\u00eda \u0111i\u1ec1u khi\u1ec3n c\u00f3 \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n hay kh\u00f4ng.<\/li>\n<\/ul>\n\n\n\n<p>Kh\u00f4ng c\u00f3 t\u00edn hi\u1ec7u nh\u1ea5p chu\u1ed9t kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng c\u00f3 ngh\u0129a l\u00e0 r\u01a1le h\u1ecfng\u2014n\u00f3 c\u00f3 th\u1ec3 c\u00f3 ngh\u0129a l\u00e0 kh\u00f4ng c\u00f3 t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.3 Ki\u1ec3m tra ngu\u1ed3n \u0111i\u1ec7n t\u1ea1i \u0111\u1ea7u n\u1ed1i \u0111\u00e8n s\u01b0\u01a1ng m\u00f9.<\/h3>\n\n\n\n<p>Ng\u1eaft k\u1ebft n\u1ed1i \u0111\u1ea7u c\u1eafm \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 v\u00e0 ki\u1ec3m tra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1eadt \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 (v\u00e0 \u0111\u00e8n pha\/\u0111\u00e8n xi nhan n\u1ebfu c\u1ea7n thi\u1ebft)<\/li>\n\n\n\n<li>\u0110o \u0111i\u1ec7n \u00e1p tr\u00ean ch\u00e2n ngu\u1ed3n so v\u1edbi \u0111\u1ea5t v\u1ecf m\u00e1y.<\/li>\n<\/ul>\n\n\n\n<p>B\u1ea1n mu\u1ed1n m\u1ed9t gi\u00e1 tr\u1ecb g\u1ea7n v\u1edbi \u0111i\u1ec7n \u00e1p \u1eafc-quy (th\u01b0\u1eddng kho\u1ea3ng 12V khi \u0111\u1ed9ng c\u01a1 t\u1eaft, cao h\u01a1n khi \u0111\u1ed9ng c\u01a1 ho\u1ea1t \u0111\u1ed9ng). N\u1ebfu c\u00f3 \u0111i\u1ec7n \u00e1p \u1edf \u0111\u00f3, v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1ed9 \u0111\u00e8n bulb\/LED<\/li>\n\n\n\n<li>K\u1ebft n\u1ed1i\/ch\u00e2n c\u1eafm<\/li>\n\n\n\n<li>\u0110\u01b0\u1eddng d\u1eabn tr\u1edf v\u1ec1 m\u1eb7t \u0111\u1ea5t (t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf m\u1ea1ch \u0111i\u1ec7n)<\/li>\n<\/ul>\n\n\n\n<p>Kh\u00f4ng c\u00f3 \u0111i\u1ec7n t\u1ea1i \u0111\u1ea7u n\u1ed1i? Di chuy\u1ec3n l\u00ean ngu\u1ed3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ea7u ra r\u01a1le<\/li>\n\n\n\n<li>\u0110\u1ea7u ra c\u1ea7u ch\u00ec<\/li>\n\n\n\n<li>D\u00e2y d\u1eabn ngu\u1ed3n g\u1ea7n \u1eafc-quy<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4.4 Ki\u1ec3m tra m\u1eb7t \u0111\u1ea5t (\u0111\u00e2y l\u00e0 k\u1ebb gi\u1ebft ng\u01b0\u1eddi th\u1ea7m l\u1eb7ng)<\/h3>\n\n\n\n<p>M\u1ed9t ti\u1ebfp \u0111\u1ea5t k\u00e9m c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 b\u00f3ng \u0111\u00e8n h\u1ecfng, r\u01a1-le h\u1ecfng ho\u1eb7c \u201c\u0111\u00e8n s\u01b0\u01a1ng m\u00f9 y\u1ebfu\u201d.\u201d<\/p>\n\n\n\n<p>C\u00e1ch ki\u1ec3m tra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng \u0111\u1ec3 \u0111o <a href=\"https:\/\/en.wikipedia.org\/wiki\/Voltage_drop\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Voltage_drop\" target=\"_blank\" rel=\"noopener\">S\u1ee5t \u00e1p<\/a> Gi\u1eefa \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 v\u00e0 c\u1ef1c \u00e2m c\u1ee7a \u1eafc-quy khi \u0111\u00e8n \u0111\u01b0\u1ee3c b\u1eadt.<\/li>\n\n\n\n<li>S\u1ef1 s\u1ee5t \u00e1p cao cho th\u1ea5y \u0111i\u1ec7n tr\u1edf \u0111\u1ea5t (do \u0103n m\u00f2n, bu l\u00f4ng l\u1ecfng l\u1ebbo, s\u01a1n d\u01b0\u1edbi \u0111\u1ea7u n\u1ed1i v\u00f2ng).<\/li>\n<\/ul>\n\n\n\n<p>M\u1ed9t gi\u1ea3i ph\u00e1p th\u1ef1c t\u1ebf th\u01b0\u1eddng hi\u1ec7u qu\u1ea3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Th\u00e1o bu l\u00f4ng ti\u1ebfp \u0111\u1ea5t<\/li>\n\n\n\n<li>L\u00e0m s\u1ea1ch \u0111\u1ebfn l\u1edbp kim lo\u1ea1i tr\u1ea7n<\/li>\n\n\n\n<li>G\u1eafn ch\u1eb7t l\u1ea1i.<\/li>\n\n\n\n<li>B\u1ea3o v\u1ec7 khu v\u1ef1c \u0111\u1ec3 l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh \u0103n m\u00f2n (kh\u00f4ng gi\u1eef \u1ea9m)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 5: N\u1ebfu ch\u1ec9 c\u00f3 m\u1ed9t \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 ho\u1ea1t \u0111\u1ed9ng \u2014 x\u00e1c \u0111\u1ecbnh c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3 c\u1ee7a t\u1eebng b\u00ean.<\/h2>\n\n\n\n<p>Khi m\u1ed9t b\u00ean g\u1eb7p s\u1ef1 c\u1ed1, vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.1 \u0110\u1ed5i v\u1ecb tr\u00ed c\u00e1c th\u00e0nh ph\u1ea7n sang hai b\u00ean (khi c\u00f3 th\u1ec3)<\/h3>\n\n\n\n<p>N\u1ebfu \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 c\u1ee7a b\u1ea1n s\u1eed d\u1ee5ng b\u00f3ng \u0111\u00e8n c\u00f3 th\u1ec3 thay th\u1ebf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed5i v\u1ecb tr\u00ed b\u00f3ng \u0111\u00e8n b\u00ean tr\u00e1i \u2194 b\u00ean ph\u1ea3i<\/li>\n\n\n\n<li>N\u1ebfu v\u1ea5n \u0111\u1ec1 xu\u1ea5t ph\u00e1t t\u1eeb b\u00f3ng \u0111\u00e8n, th\u00ec \u0111\u00f3 l\u00e0 do b\u00f3ng \u0111\u00e8n.<\/li>\n\n\n\n<li>N\u1ebfu n\u00f3 v\u1eabn \u1edf c\u00f9ng m\u1ed9t b\u00ean, \u0111\u00f3 l\u00e0 d\u00e2y d\u1eabn\/c\u1ed5ng k\u1ebft n\u1ed1i\/\u0111\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 LED k\u00edn, b\u1ea1n kh\u00f4ng th\u1ec3 lu\u00f4n thay th\u1ebf nhanh ch\u00f3ng\u2014nh\u01b0ng b\u1ea1n th\u01b0\u1eddng c\u00f3 th\u1ec3 thay th\u1ebf c\u00e1c \u0111\u1ea7u n\u1ed1i ho\u1eb7c ki\u1ec3m tra b\u1ed9 \u0111\u00e8n b\u1eb1ng ngu\u1ed3n \u0111i\u1ec7n \u0111\u00e3 bi\u1ebft l\u00e0 t\u1ed1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.2 Ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng \u0111\u1ea7u n\u1ed1i.<\/h3>\n\n\n\n<p>T\u00ecm ki\u1ebfm:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u1ecf xanh\/tr\u1eafng (g\u1ec9 s\u00e9t)<\/li>\n\n\n\n<li>\u0110inh cong<\/li>\n\n\n\n<li>C\u00e1c \u0111\u1ea7u n\u1ed1i n\u1eef l\u1ecfng l\u1ebbo kh\u00f4ng k\u1eb9p ch\u1eb7t<\/li>\n\n\n\n<li>N\u01b0\u1edbc b\u00ean trong \u1ed1ng b\u1ea3o v\u1ec7 \u0111\u1ea7u n\u1ed1i<\/li>\n<\/ul>\n\n\n\n<p>V\u1ec7 sinh b\u1eb1ng dung d\u1ecbch l\u00e0m s\u1ea1ch ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n, \u0111\u1ec3 kh\u00f4, sau \u0111\u00f3 ki\u1ec3m tra l\u1ea1i. N\u1ebfu c\u00e1c ch\u00e2n c\u1eafm l\u1ecfng l\u1ebbo, \u0111\u1ea7u n\u1ed1i c\u00f3 th\u1ec3 c\u1ea7n s\u1eeda ch\u1eefa ho\u1eb7c thay th\u1ebf.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.3 Ki\u1ec3m tra xem c\u00f3 h\u01b0 h\u1ecfng v\u1eadt l\u00fd tr\u00ean d\u00e2y \u0111ai an to\u00e0n hay kh\u00f4ng.<\/h3>\n\n\n\n<p>\u0110\u00e8n s\u01b0\u01a1ng m\u00f9 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed th\u1ea5p v\u00e0 ph\u00eda tr\u01b0\u1edbc \u2014 ch\u00ednh x\u00e1c \u1edf \u0111\u00e2u:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u1eadt c\u1ea3n tr\u00ean \u0111\u01b0\u1eddng va ch\u1ea1m<\/li>\n\n\n\n<li>B\u00e1nh xe b\u1eafn n\u01b0\u1edbc v\u00e0 c\u00e1t b\u1ee5i<\/li>\n\n\n\n<li>C\u00e1c khay nh\u1ef1a d\u01b0\u1edbi \u0111\u00e1y c\u1ecd x\u00e1t v\u1edbi d\u00e2y \u0111ai.<\/li>\n<\/ul>\n\n\n\n<p>Ki\u1ec3m tra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u1ebft tr\u1ea7y x\u01b0\u1edbc g\u1ea7n c\u00e1c gi\u00e1 \u0111\u1ee1<\/li>\n\n\n\n<li>D\u00e2y \u0111i\u1ec7n b\u1ecb k\u1eb9p ph\u00eda sau c\u00e1c k\u1eb9p c\u1ea3n xe<\/li>\n\n\n\n<li>V\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t b\u1ecb h\u1ecfng g\u1ea7n c\u1ea1nh s\u1eafc nh\u1ecdn<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu ph\u00e1t hi\u1ec7n \u0111\u1ed3ng b\u1ecb l\u1ed9, \u0111\u1eebng ch\u1ec9 d\u00e1n b\u0103ng keo v\u00e0 b\u1ecf qua. H\u00e3y s\u1eeda ch\u1eefa \u0111\u00fang c\u00e1ch (s\u1eed d\u1ee5ng \u1ed1ng co nhi\u1ec7t, k\u1ebft n\u1ed1i k\u00edn) v\u00ec \u0111\u1ed9 \u1ea9m s\u1ebd quay tr\u1edf l\u1ea1i v\u00e0 s\u1ef1 c\u1ed1 s\u1ebd t\u00e1i ph\u00e1t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 6: \u0110\u00e8n s\u01b0\u01a1ng m\u00f9 nh\u1ea5p nh\u00e1y v\u00e0 ch\u1edbp t\u1eaft \u2014 thu\u1ed9c lo\u1ea1i \u201cg\u1ea7n nh\u01b0 ho\u1ea1t \u0111\u1ed9ng\u201d<\/h2>\n\n\n\n<p>C\u00e1c v\u1ea5n \u0111\u1ec1 x\u1ea3y ra ng\u1eaft qu\u00e3ng l\u00e0 phi\u1ec1n ph\u1ee9c nh\u1ea5t v\u00ec ch\u00fang bi\u1ebfn m\u1ea5t khi b\u1ea1n \u0111ang ki\u1ec3m tra.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn (trong th\u1ef1c t\u1ebf)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110i\u1ec3m ti\u1ebfp \u0111\u1ea5t \u0111\u00f3 l\u00e0 <em>g\u1ea7n nh\u01b0<\/em> ch\u1eb7t<\/li>\n\n\n\n<li>K\u1ebft n\u1ed1i ch\u00e2n c\u1eafm l\u1ecfng l\u1ebbo \u0111\u1ebfn m\u1ee9c c\u00f3 th\u1ec3 rung l\u1eafc.<\/li>\n\n\n\n<li>R\u01a1le c\u00f3 ti\u1ebfp \u0111i\u1ec3m c\u00f3 r\u00e3nh<\/li>\n\n\n\n<li>D\u00e2y c\u00e1p sau th\u1ecb tr\u01b0\u1eddng \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed qu\u00e1 g\u1ea7n c\u00e1c ngu\u1ed3n nhi\u1ec7t.<\/li>\n\n\n\n<li>S\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a n\u01b0\u1edbc thay \u0111\u1ed5i theo nhi\u1ec7t \u0111\u1ed9.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u1eed nghi\u1ec7m th\u1ef1c h\u00e0nh<\/h3>\n\n\n\n<p>Khi \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 \u0111\u01b0\u1ee3c b\u1eadt:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nh\u1eb9 nh\u00e0ng l\u1eafc nh\u1eb9 \u0111\u1ea7u n\u1ed1i.<\/li>\n\n\n\n<li>Di chuy\u1ec3n d\u00e2y \u0111ai theo \u0111\u01b0\u1eddng \u0111i c\u1ee7a n\u00f3.<\/li>\n\n\n\n<li>Nh\u1ea5n nh\u1eb9 v\u00e0o r\u01a1-le.<br>N\u1ebfu \u0111\u00e8n s\u00e1ng\/t\u1eaft, b\u1ea1n \u0111\u00e3 t\u00ecm th\u1ea5y m\u1ed9t v\u1ea5n \u0111\u1ec1 c\u01a1 h\u1ecdc\/<a href=\"https:\/\/en.wikipedia.org\/wiki\/Electrical_connector\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Electrical_connector\" target=\"_blank\" rel=\"noopener\">K\u1ebft n\u1ed1i \u0111i\u1ec7n<\/a> v\u1ea5n \u0111\u1ec1.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c c\u1ea3i ti\u1ebfn nhanh ch\u00f3ng gi\u00fap gi\u1ea3m thi\u1ec3u c\u00e1c s\u1ef1 c\u1ed1 l\u1eb7p l\u1ea1i<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>G\u1eafn ch\u1eb7t d\u00e2y an to\u00e0n b\u1eb1ng c\u00e1c m\u00f3c c\u00e0i\/d\u00e2y bu\u1ed9c (tr\u00e1nh c\u00e1c c\u1ea1nh s\u1eafc nh\u1ecdn)<\/li>\n\n\n\n<li>\u0110\u1ea3m b\u1ea3o c\u00e1c \u0111\u1ea7u n\u1ed1i \u201ck\u00eau click\u201d v\u00e0 kh\u00f3a ch\u1eb7t.<\/li>\n\n\n\n<li>M\u00e0i l\u1ea1i \u0111\u1ebfn \u0111i\u1ec3m khung xe s\u1ea1ch s\u1ebd<\/li>\n\n\n\n<li>Thay th\u1ebf c\u00e1c r\u01a1-le gi\u00e1 r\u1ebb v\u00e0 c\u00e1c b\u1ed9 gi\u1eef c\u1ea7u ch\u00ec kh\u00f4ng \u0111\u00e1ng tin c\u1eady (ch\u00fang b\u1ecb l\u00e3o h\u00f3a nhanh ch\u00f3ng)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 7: \u0110\u1ed9 \u1ea9m b\u00ean trong v\u1ecf \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 \u2014 \u0111i\u1ec1u g\u00ec l\u00e0 b\u00ecnh th\u01b0\u1eddng v\u00e0 \u0111i\u1ec1u g\u00ec l\u00e0 v\u1ea5n \u0111\u1ec1<\/h2>\n\n\n\n<p>Ng\u01b0\u1eddi ta th\u01b0\u1eddng cho r\u1eb1ng b\u1ea5t k\u1ef3 hi\u1ec7n t\u01b0\u1ee3ng s\u01b0\u01a1ng m\u00f9 n\u00e0o c\u0169ng c\u00f3 ngh\u0129a l\u00e0 thi\u1ebft b\u1ecb \u0111ang b\u1ecb r\u00f2 r\u1ec9. Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng v\u1eady.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ecdng s\u01b0\u01a1ng b\u00ecnh th\u01b0\u1eddng (th\u01b0\u1eddng kh\u00f4ng sao)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ed9t l\u1edbp s\u01b0\u01a1ng m\u1ecfng xu\u1ea5t hi\u1ec7n sau khi r\u1eeda xe ho\u1eb7c do s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/li>\n\n\n\n<li>N\u00f3 s\u1ebd s\u00e1ng sau khi \u0111\u00e8n n\u00f3ng l\u00ean ho\u1eb7c sau khi ch\u1ea1y kh\u00f4.<\/li>\n<\/ul>\n\n\n\n<p>Nhi\u1ec1u v\u1ecf b\u1ecdc \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u00f3 l\u1ed7 th\u00f4ng h\u01a1i \u0111\u1ec3 c\u00e2n b\u1eb1ng \u00e1p su\u1ea5t. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn \u0111\u1ed9 \u1ea9m ng\u01b0ng t\u1ee5 t\u1ea1m th\u1eddi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u1ed9t s\u1ef1 r\u00f2 r\u1ec9 th\u1ef1c s\u1ef1 (c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gi\u1ecdt n\u01b0\u1edbc ho\u1eb7c v\u0169ng n\u01b0\u1edbc<\/li>\n\n\n\n<li>S\u01b0\u01a1ng m\u00f9 kh\u00f4ng bao gi\u1edd tan<\/li>\n\n\n\n<li>V\u1ebft b\u1ea9n c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y b\u00ean trong \u1ed1ng k\u00ednh (n\u01b0\u1edbc mang theo b\u1ee5i b\u1ea9n)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">C\u1ea7n ki\u1ec3m tra nh\u1eefng g\u00ec<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u1eafp sau \u0111\u01b0\u1ee3c l\u1eafp \u0111\u00fang v\u1ecb tr\u00ed (r\u1ea5t ph\u1ed5 bi\u1ebfn)<\/li>\n\n\n\n<li>T\u00ecnh tr\u1ea1ng gio\u0103ng (b\u1ecb d\u1eb9t, r\u00e1ch, m\u1ea5t)<\/li>\n\n\n\n<li>V\u1ebft n\u1ee9t tr\u00ean t\u01b0\u1eddng do va ch\u1ea1m v\u1edbi \u0111\u00e1<\/li>\n\n\n\n<li>L\u1ed7 th\u00f4ng h\u01a1i b\u1ecb t\u1eafc do b\u00f9n ho\u1eb7c s\u00e1p.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea1i sao \u0111\u1ed9 \u1ea9m l\u1ea1i quan tr\u1ecdng ngay c\u1ea3 khi \u0111\u00e8n v\u1eabn ho\u1ea1t \u0111\u1ed9ng?<\/h3>\n\n\n\n<p>N\u01b0\u1edbc d\u1eabn \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1ef1 \u0103n m\u00f2n t\u1ea1i c\u00e1c \u0111\u1ea7u n\u1ed1i<\/li>\n\n\n\n<li>Hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y v\u00e0 ho\u1ea1t \u0111\u1ed9ng gi\u00e1n \u0111o\u1ea1n<\/li>\n\n\n\n<li>S\u1ef1 c\u1ed1 h\u1ecfng h\u00f3c s\u1edbm c\u1ee7a b\u1ed9 \u0111i\u1ec1u khi\u1ec3n LED<\/li>\n\n\n\n<li>S\u1ef1 suy gi\u1ea3m c\u1ee7a g\u01b0\u01a1ng ph\u1ea3n x\u1ea1\/th\u1ea5u k\u00ednh theo th\u1eddi gian<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu b\u1ea1n kh\u1eafc ph\u1ee5c v\u1ea5n \u0111\u1ec1 \u1ea9m \u01b0\u1edbt s\u1edbm, b\u1ea1n th\u01b0\u1eddng c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c t\u00ecnh hu\u1ed1ng \u201cho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u00f4m nay, h\u1ecfng h\u00f3c v\u00e0o th\u00e1ng sau\u201d.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 8: \u0110\u00e8n s\u01b0\u01a1ng m\u00f9 \u0111ang b\u1eadt, nh\u01b0ng ch\u00fang tr\u00f4ng m\u1edd ho\u1eb7c kh\u00f4ng \u0111\u1ec1u.<\/h2>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y kh\u00e1c v\u1edbi \u201ckh\u00f4ng ho\u1ea1t \u0111\u1ed9ng\u201d, nh\u01b0ng \u0111\u00e2y l\u00e0 m\u1ed9t ph\u00e0n n\u00e0n ph\u1ed5 bi\u1ebfn sau nhi\u1ec1u th\u00e1ng s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nguy\u00ean nh\u00e2n g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u00e1nh s\u00e1ng y\u1ebfu<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1edd\/l\u00f5m \u1ed1ng k\u00ednh do c\u00e1t \u0111\u01b0\u1eddng<\/li>\n\n\n\n<li>S\u1ee5t \u00e1p do \u0103n m\u00f2n ho\u1eb7c ti\u1ebfp \u0111\u1ea5t y\u1ebfu<\/li>\n\n\n\n<li>Lo\u1ea1i b\u00f3ng \u0111\u00e8n kh\u00f4ng \u0111\u00fang (h\u1ec7 th\u1ed1ng halogen v\u1edbi c\u00f4ng su\u1ea5t\/k\u00edch th\u01b0\u1edbc kh\u00f4ng ph\u00f9 h\u1ee3p)<\/li>\n\n\n\n<li>B\u00f3ng \u0111\u00e8n halogen c\u0169<\/li>\n\n\n\n<li>\u0110\u00e8n LED sau th\u1ecb tr\u01b0\u1eddng c\u00f3 h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd nhi\u1ec7t k\u00e9m (\u0111\u1ed9 s\u00e1ng gi\u1ea3m khi n\u00f3ng)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ea9n \u0111o\u00e1n nhanh: \u0110o \u0111i\u1ec7n \u00e1p t\u1ea1i b\u00f3ng \u0111\u00e8n<\/h3>\n\n\n\n<p>N\u1ebfu b\u1ea1n \u0111ang c\u1ea5p ngu\u1ed3n cho \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 halogen v\u00e0 ch\u1ec9 nh\u1eadn \u0111\u01b0\u1ee3c, v\u00ed d\u1ee5, 10,5\u201311V t\u1ea1i \u0111\u1ea7u n\u1ed1i khi \u0111\u1ed9ng c\u01a1 \u0111ang ch\u1ea1y, b\u00f3ng \u0111\u00e8n s\u1ebd tr\u00f4ng y\u1ebfu. X\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n tr\u1edf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1c ti\u1ebfp \u0111i\u1ec3m c\u1ea7u ch\u00ec b\u1ecb \u0103n m\u00f2n<\/li>\n\n\n\n<li>R\u01a1le y\u1ebfu<\/li>\n\n\n\n<li>\u0110\u1ea5t x\u1ea5u<\/li>\n\n\n\n<li>D\u00e2y \u0111i\u1ec7n c\u00f3 k\u00edch th\u01b0\u1edbc kh\u00f4ng \u0111\u1ee7 trong b\u1ed9 d\u00e2y \u0111i\u1ec7n sau khi l\u1eafp \u0111\u1eb7t.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00f4 h\u00ecnh kh\u00f4ng \u0111\u1ec1u t\u1eeb b\u00ean n\u00e0y sang b\u00ean kia<\/h3>\n\n\n\n<p>N\u1ebfu m\u1ed9t b\u00ean tr\u00f4ng \u201cth\u1ea5p h\u01a1n\u201d, \u201ccao h\u01a1n\u201d ho\u1eb7c r\u1ea3i r\u00e1c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1ed9 gi\u00e1 \u0111\u1ee1 c\u00f3 th\u1ec3 b\u1ecb cong.<\/li>\n\n\n\n<li>V\u1ecf m\u00e1y c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch.<\/li>\n\n\n\n<li>M\u1ed9t \u0111\u01a1n v\u1ecb c\u00f3 th\u1ec3 b\u1ecb h\u01b0 h\u1ecfng b\u00ean trong.<\/li>\n<\/ul>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t ph\u1ed5 bi\u1ebfn sau khi va ch\u1ea1m v\u1edbi v\u1ec9a h\u00e8 ho\u1eb7c s\u1eeda ch\u1eefa c\u1ea3n xe.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"767\" src=\"https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/fog-lights-warning-light-on-dashboard-1024x767.webp\" alt=\"\u0110\u00e8n c\u1ea3nh b\u00e1o \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 s\u00e1ng tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n xe, cho bi\u1ebft c\u00f3 s\u1ef1 c\u1ed1 v\u1edbi \u0111\u00e8n s\u01b0\u01a1ng m\u00f9.\" class=\"wp-image-7715\" srcset=\"https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/fog-lights-warning-light-on-dashboard-1024x767.webp 1024w, https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/fog-lights-warning-light-on-dashboard-300x225.webp 300w, https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/fog-lights-warning-light-on-dashboard-768x575.webp 768w, https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/fog-lights-warning-light-on-dashboard-16x12.webp 16w, https:\/\/ledingco.com\/wp-content\/uploads\/2026\/01\/fog-lights-warning-light-on-dashboard.webp 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 9: L\u1ed7i b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 chuy\u1ec3n \u0111\u1ed5i \u0111\u00e8n LED (xe \u00f4 t\u00f4 hi\u1ec7n \u0111\u1ea1i)<\/h2>\n\n\n\n<p>Tr\u00ean nhi\u1ec1u xe \u00f4 t\u00f4 m\u1edbi, h\u1ec7 th\u1ed1ng \u0111\u00e8n chi\u1ebfu s\u00e1ng \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t. Vi\u1ec7c thay \u0111\u1ed5i t\u1ea3i \u0111i\u1ec7n c\u00f3 th\u1ec3 l\u00e0m h\u1ec7 th\u1ed1ng b\u1ecb nh\u1ea7m l\u1eabn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110i\u1ec1u g\u00ec x\u1ea3y ra<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>BCM d\u1ef1 ki\u1ebfn m\u1ed9t m\u1ee9c ti\u00eau th\u1ee5 d\u00f2ng \u0111i\u1ec7n nh\u1ea5t \u0111\u1ecbnh.<\/li>\n\n\n\n<li>\u0110\u00e8n LED thay th\u1ebf c\u00f3 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng kh\u00e1c so v\u1edbi \u0111\u00e8n halogen.<\/li>\n\n\n\n<li>Xe hi\u1ec3n th\u1ecb c\u1ea3nh b\u00e1o \u0111\u00e8n b\u00e1o l\u1ed7i ho\u1eb7c ng\u1eaft m\u1ea1ch.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng \u0111i\u1ec1u kh\u00f4ng n\u00ean l\u00e0m<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kh\u00f4ng n\u00ean t\u00f9y ti\u1ec7n th\u00eam c\u00e1c \u0111i\u1ec7n tr\u1edf m\u00e0 kh\u00f4ng hi\u1ec3u r\u00f5 v\u1ec1 nhi\u1ec7t \u0111\u1ed9 v\u00e0 v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t. C\u00e1c \u0111i\u1ec7n tr\u1edf t\u1ea3i c\u00f3 th\u1ec3 tr\u1edf n\u00ean n\u00f3ng v\u00e0 c\u00f3 th\u1ec3 g\u00e2y nguy c\u01a1 ch\u00e1y n\u1ed5 n\u1ebfu \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t kh\u00f4ng \u0111\u00fang c\u00e1ch.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110i\u1ec1u g\u00ec th\u01b0\u1eddng hi\u1ec7u qu\u1ea3<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh ri\u00eang cho h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t c\u1ee7a xe b\u1ea1n.<\/li>\n\n\n\n<li>N\u1ebfu xe c\u1ee7a b\u1ea1n h\u1ed7 tr\u1ee3 l\u1eadp tr\u00ecnh cho \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 LED, h\u00e3y th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1ch.<\/li>\n\n\n\n<li>S\u1eeda ch\u1eefa h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n\/\u0111\u1ea5t tr\u01b0\u1edbc ti\u00ean; nhi\u1ec1u v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn CANbus ch\u1ec9 l\u00e0 do k\u1ebft n\u1ed1i k\u00e9m.<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu m\u1ee5c ti\u00eau c\u1ee7a b\u1ea1n l\u00e0 \u0111\u1ed9 tin c\u1eady, t\u00ednh \u1ed5n \u0111\u1ecbnh quan tr\u1ecdng h\u01a1n vi\u1ec7c theo \u0111u\u1ed5i c\u00e1c con s\u1ed1 tr\u00ean b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01b0\u1edbc 10: M\u1ed9t s\u01a1 \u0111\u1ed3 quy\u1ebft \u0111\u1ecbnh \u0111\u01a1n gi\u1ea3n (h\u00e3y h\u00ecnh dung trong \u0111\u1ea7u)<\/h2>\n\n\n\n<p>Khi b\u1ea1n g\u1eb7p kh\u00f3 kh\u0103n, h\u00e3y \u00e1p d\u1ee5ng logic sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0110\u00e8n b\u00e1o kh\u00f4ng s\u00e1ng tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ki\u1ec3m tra logic c\u00f4ng t\u1eafc, c\u00e0i \u0111\u1eb7t, \u0111i\u1ec1u khi\u1ec3n BCM, k\u00edch ho\u1ea1t r\u01a1-le.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0110\u00e8n t\u00edn hi\u1ec7u, c\u1ea3 hai \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 \u0111\u1ec1u t\u1eaft.<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ki\u1ec3m tra c\u1ea7u ch\u00ec \u2192 r\u01a1le \u2192 ngu\u1ed3n c\u1ea5p \u0111i\u1ec7n \u2192 ti\u1ebfp \u0111\u1ea5t ch\u00ednh<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0110\u00e8n b\u00e1o hi\u1ec7u, m\u1ed9t b\u00ean t\u1eaft.<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Thay b\u00f3ng \u0111\u00e8n (n\u1ebfu c\u00f3 th\u1ec3) \u2192 ki\u1ec3m tra \u0111\u1ea7u n\u1ed1i \u2192 ki\u1ec3m tra d\u00e2y \u0111i\u1ec7n b\u00ean \u2192 ki\u1ec3m tra d\u00e2y n\u1ed1i \u0111\u1ea5t b\u00ean<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Nh\u1ea5p nh\u00e1y<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a ti\u1ebfp \u0111i\u1ec3m v\u00e0 \u0111\u1ea7u n\u1ed1i tr\u01b0\u1edbc ti\u00ean \u2192 sau \u0111\u00f3 l\u00e0 gi\u00e1 \u0111\u1ee1 r\u01a1le\/c\u1ea7u ch\u00ec \u2192 sau \u0111\u00f3 l\u00e0 \u0111\u01b0\u1eddng d\u1eabn d\u00e2y c\u00e1p.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0110\u1ed9 \u1ea9m<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u1eafp\/ph\u1edbt\/l\u1ed7 th\u00f4ng h\u01a1i \u2192 sau \u0111\u00f3 n\u1ee9t \u2192 sau \u0111\u00f3 \u0103n m\u00f2n \u0111\u1ea7u n\u1ed1i<\/li>\n<\/ul>\n\n\n\n<p>H\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi l\u00e3ng ph\u00ed th\u1eddi gian b\u1eb1ng c\u00e1ch b\u1eaft \u0111\u1ea7u v\u1edbi vi\u1ec7c l\u1eafp r\u00e1p \u0111\u00e8n. H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi ngu\u1ed3n \u0111i\u1ec7n v\u00e0 d\u00e2y mass.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Khi n\u00e0o n\u00ean ng\u1eebng t\u1ef1 l\u00e0m v\u00e0 giao l\u1ea1i cho ng\u01b0\u1eddi kh\u00e1c<\/h2>\n\n\n\n<p>N\u00ean tham kh\u1ea3o \u00fd ki\u1ebfn c\u1ee7a c\u1eeda h\u00e0ng n\u1ebfu:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea7u ch\u00ec c\u1ee9 b\u1ecb ch\u00e1y (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Short_circuit_(disambiguation)\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Short_circuit_(disambiguation)\" target=\"_blank\" rel=\"noopener\">ch\u1eadp \u0111i\u1ec7n<\/a> c\u1ea7n \u0111\u01b0\u1ee3c theo d\u00f5i \u0111\u00fang c\u00e1ch)<\/li>\n\n\n\n<li>D\u00e2y \u0111i\u1ec7n b\u1ecb h\u01b0 h\u1ecfng s\u00e2u ph\u00eda sau c\u1ea3n xe v\u00e0 b\u1ea1n kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn m\u1ed9t c\u00e1ch an to\u00e0n.<\/li>\n\n\n\n<li>Xe c\u1ea7n \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh\/c\u00e0i \u0111\u1eb7t \u0111\u1ec3 c\u1ea5u h\u00ecnh h\u1ec7 th\u1ed1ng \u0111\u00e8n.<\/li>\n\n\n\n<li>B\u1ea1n th\u1ea5y c\u00e1c \u0111\u1ea7u n\u1ed1i b\u1ecb ch\u1ea3y, d\u00e2y \u0111i\u1ec7n b\u1ecb qu\u00e1 nhi\u1ec7t ho\u1eb7c d\u1ea5u hi\u1ec7u c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng ph\u00f3ng \u0111i\u1ec7n.<\/li>\n<\/ul>\n\n\n\n<p>S\u1ef1 c\u1ed1 \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa an to\u00e0n\u2014khi b\u1ea1n s\u1eeda ch\u1eefa ch\u00fang \u0111\u00fang c\u00e1ch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u01b0u \u00fd cu\u1ed1i c\u00f9ng: \u0110\u00e8n s\u01b0\u01a1ng m\u00f9 ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady th\u01b0\u1eddng \u201ckh\u00f4ng c\u00f3 g\u00ec \u0111\u1eb7c bi\u1ec7t\u201d.\u201d<\/h2>\n\n\n\n<p>\u0110\u00e8n s\u01b0\u01a1ng m\u00f9 t\u1ed1t nh\u1ea5t cho xe \u00f4 t\u00f4 kh\u00f4ng ph\u1ea3i l\u00e0 \u0111i\u1ec1u g\u00ec \u0111\u00f3 qu\u00e1 \u0111\u1eb7c bi\u1ec7t. \u0110\u00f3 l\u00e0 h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, kh\u00f4ng nh\u1ea5p nh\u00e1y, kh\u00f4ng b\u1ecb \u0111\u1ecdng n\u01b0\u1edbc v\u00e0 kh\u00f4ng g\u00e2y ra l\u1ed7i. H\u1ea7u h\u1ebft c\u00e1c s\u1ef1 c\u1ed1 \u0111\u1ec1u xu\u1ea5t ph\u00e1t t\u1eeb ba y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n: <strong>C\u1ea7u ch\u00ec, d\u00e2y n\u1ed1i \u0111\u1ea5t v\u00e0 \u0111\u1ea7u n\u1ed1i<\/strong>\u2014\u0111\u1eb7c bi\u1ec7t l\u00e0 tr\u00ean m\u1ed9t chi\u1ebfc \u0111\u00e8n \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed th\u1ea5p, \u1ea9m \u01b0\u1edbt v\u00e0 l\u1ed9 thi\u00ean.<\/p>\n\n\n\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n, h\u00e3y d\u00e1n (1) m\u1eabu xe v\u00e0 n\u0103m s\u1ea3n xu\u1ea5t c\u1ee7a b\u1ea1n v\u00e0 (2) lo\u1ea1i \u0111\u00e8n s\u01b0\u01a1ng m\u00f9 c\u1ee7a b\u1ea1n l\u00e0 \u0111\u00e8n halogen nguy\u00ean b\u1ea3n, \u0111\u00e8n LED nguy\u00ean b\u1ea3n hay b\u1ed9 kit sau khi l\u1eafp \u0111\u1eb7t. T\u00f4i s\u1ebd li\u1ec7t k\u00ea c\u00e1c \u0111i\u1ec3m h\u1ecfng h\u00f3c c\u00f3 kh\u1ea3 n\u0103ng cao nh\u1ea5t theo th\u1ee9 t\u1ef1 v\u00e0 h\u01b0\u1edbng d\u1eabn b\u1ea1n ch\u00ednh x\u00e1c nh\u1eefng g\u00ec c\u1ea7n ki\u1ec3m tra tr\u01b0\u1edbc ti\u00ean \u0111\u1ec3 tr\u00e1nh l\u00e3ng ph\u00ed th\u1eddi gian.<\/p>","protected":false},"excerpt":{"rendered":"<p>Fog lights tend to get attention only when the weather turns ugly\u2014right up until the moment they don\u2019t turn on at all. Then it\u2019s suddenly not a \u201cnice-to-have\u201d feature; it\u2019s one more thing you\u2019re trying to solve in the driveway before a rainy commute, a winter trip, or an inspection. This article is for that [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7706,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-7530","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fog-lights"],"_links":{"self":[{"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/posts\/7530","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/comments?post=7530"}],"version-history":[{"count":17,"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/posts\/7530\/revisions"}],"predecessor-version":[{"id":7716,"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/posts\/7530\/revisions\/7716"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/media\/7706"}],"wp:attachment":[{"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/media?parent=7530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/categories?post=7530"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ledingco.com\/vi\/wp-json\/wp\/v2\/tags?post=7530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}