{"id":288075,"date":"2024-10-25T06:57:59","date_gmt":"2024-10-25T06:57:59","guid":{"rendered":"https:\/\/www.ziptuning.com\/zh\/?p=288075"},"modified":"2024-10-25T06:57:59","modified_gmt":"2024-10-25T06:57:59","slug":"spn-5246-aftertreatment-scr-operator-inducement-severity","status":"publish","type":"post","link":"https:\/\/www.ziptuning.com\/zh\/blog\/spn-5246-aftertreatment-scr-operator-inducement-severity\/","title":{"rendered":"SPN 5246\uff1a\u540e\u5904\u7406 SCR \u64cd\u4f5c\u5458\u8bf1\u5bfc\u4e25\u91cd\u6027"},"content":{"rendered":"<p id=\"fault-code-spn-5246-detailed-guide-for-engineers-and-mechanics\">\u6545\u969c\u4ee3\u7801 SPN 5246\uff1a\u5de5\u7a0b\u5e08\u548c\u6280\u5e08\u7684\u8be6\u7ec6\u6307\u5357<\/p>\n<p>\u6545\u969c\u4ee3\u7801 SPN 5246 \u662f\u4e00\u4e2a\u901a\u7528\u8bca\u65ad\u6545\u969c\u4ee3\u7801\uff08DTC\uff09\uff0c\u6307\u793a\u67f4\u6cb9\u53d1\u52a8\u673a\u7684\u67f4\u6cb9\u6392\u6c14\u6db2\uff08DEF\uff09\u7cfb\u7edf\u5b58\u5728\u95ee\u9898\u3002\u5f53\u6b64\u4ee3\u7801\u51fa\u73b0\u65f6\uff0c\u4e86\u89e3\u5176\u7d27\u6025\u6027\u3001\u539f\u56e0\u53ca\u8bca\u65ad\u548c\u4fee\u590d\u6b65\u9aa4\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<div class=\"workshop-experience-text\">\n<p>\u5728\u6211\u4eec\u7684\u8f66\u95f4\u4e2d\uff0c\u6211\u4eec\u5728\u5404\u79cd\u54c1\u724c\u7684\u8f66\u8f86\u4e2d\u9891\u7e41\u9047\u5230\u6545\u969c\u4ee3\u7801 SPN 5246\u3002\u5728\u7f8e\u7cfb\u54c1\u724c\u5982\u5eb7\u660e\u65af\uff08Cummins\uff09\u548c\u5e95\u7279\u5f8b\u67f4\u6cb9\uff08Detroit Diesel\uff09\u4e2d\uff0c\u6211\u4eec\u89c1\u8fc7\u7531\u4e8e DEF \u7cfb\u7edf\u95ee\u9898\u800c\u51fa\u73b0\u8be5\u4ee3\u7801\uff0c\u4f8b\u5982\u7ba1\u7ebf\u5835\u585e\u6216\u4f20\u611f\u5668\u6545\u969c\u3002\u4e9a\u7cfb\u54c1\u724c\u5982\u65e5\u91ce\uff08Hino\uff09\u548c\u4e94\u5341\u94c3\uff08Isuzu\uff09\u4e5f\u51fa\u73b0\u4e86\u7c7b\u4f3c\u7684 SPN 5246 \u6545\u969c\uff0c\u901a\u5e38\u4e0e DEF \u8d28\u91cf\u6216\u8ba1\u91cf\u9600\u95ee\u9898\u76f8\u5173\u3002\u7136\u800c\uff0c\u6211\u4eec\u6ce8\u610f\u5230\u6b27\u7cfb\u54c1\u724c\uff0c\u7279\u522b\u662f\u6885\u8d5b\u5fb7\u65af-\u5954\u9a70\uff08Mercedes-Benz\uff09\u548c\u6c83\u5c14\u6c83\uff08Volvo\uff09\u5361\u8f66\uff0c\u66f4\u5bb9\u6613\u53d1\u751f\u8be5\u6545\u969c\u4ee3\u7801\u3002\u4e0a\u5468\uff0c\u6211\u4eec\u7ef4\u4fee\u4e86\u4e00\u8f86\u6885\u8d5b\u5fb7\u65af Actros\uff0c\u51fa\u73b0 SPN 5246 FMI 16\uff0c\u6700\u7ec8\u53d1\u73b0 DEF \u6cf5\u6545\u969c\u3002\u51e0\u4e2a\u6708\u524d\uff0c\u4e00\u8f86\u6c83\u5c14\u6c83 FH12 \u51fa\u73b0\u4e86\u76f8\u540c\u4ee3\u7801\uff0c\u95ee\u9898\u8ffd\u6eaf\u5230 NOx \u4f20\u611f\u5668\u6545\u969c\u3002\u6839\u636e\u6211\u4eec\u7684\u7ecf\u9a8c\uff0c\u5c3d\u7ba1 SPN 5246 \u53ef\u80fd\u51fa\u73b0\u5728\u6240\u6709\u54c1\u724c\u4e2d\uff0c\u4f46\u6b27\u7cfb\u5361\u8f66\u66f4\u5bb9\u6613\u51fa\u73b0\u6b64\u6545\u969c\uff0c\u9700\u8981\u5bf9\u5176 DEF \u7cfb\u7edf\u8fdb\u884c\u989d\u5916\u5173\u6ce8\u3002<\/p>\n<\/div>\n<h2 id=\"urgency-and-driving-considerations\">\u7d27\u6025\u7a0b\u5ea6\u548c\u9a7e\u9a76\u6ce8\u610f\u4e8b\u9879<\/h2>\n<p>\u5f53 SPN 5246 \u6545\u969c\u4ee3\u7801\u88ab\u89e6\u53d1\u65f6\uff0c\u901a\u5e38\u4f1a\u5bfc\u81f4\u964d\u529f\u7387\u72b6\u6001\uff0c\u5c06\u8f66\u8f86\u901f\u5ea6\u9650\u5236\u5728\u7ea6 5 \u82f1\u91cc\/\u5c0f\u65f6\uff088 \u516c\u91cc\/\u5c0f\u65f6\uff09\u3002\u4e0d\u5efa\u8bae\u5728\u6b64\u4ee3\u7801\u6fc0\u6d3b\u65f6\u7ee7\u7eed\u9a7e\u9a76\uff0c\u56e0\u4e3a\u8fd9\u53ef\u80fd\u4f1a\u5bf9 DEF \u7cfb\u7edf\u9020\u6210\u8fdb\u4e00\u6b65\u635f\u5bb3\uff0c\u5bfc\u81f4\u66f4\u4e25\u91cd\u7684\u53d1\u52a8\u673a\u964d\u529f\u7387\u6216\u505c\u673a\u3002<\/p>\n<p>\u9047\u5230\u6b64\u4ee3\u7801\u540e\uff0c\u5efa\u8bae\u505c\u6b62\u9a7e\u9a76\uff0c\u5e76\u5c06\u8f66\u8f86\u62d6\u81f3\u7ecf\u9500\u5546\u6216\u5408\u683c\u7684\u7ef4\u4fee\u5e97\u8fdb\u884c\u6b63\u786e\u7684\u8bca\u65ad\u548c\u7ef4\u4fee\u3002<\/p>\n<h2 id=\"code-details-and-applicability\">\u4ee3\u7801\u8be6\u60c5\u548c\u9002\u7528\u8303\u56f4<\/h2>\n<p>SPN 5246 \u662f\u4e00\u4e2a\u901a\u7528\u6545\u969c\u4ee3\u7801\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u914d\u5907\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f\uff08SCR\uff09\u7cfb\u7edf\u7684\u67f4\u6cb9\u8f66\u8f86\u3002\u4f46\u4e0e\u8be5\u4ee3\u7801\u5173\u8054\u7684\u7279\u5b9a\u6545\u969c\u6a21\u5f0f\u6807\u8bc6\u7b26\uff08FMI\uff09\u53ef\u80fd\u56e0\u5236\u9020\u5546\u800c\u5f02\u3002<\/p>\n<p>\u4e0e SPN 5246 \u76f8\u5173\u7684\u4e00\u4e9b\u5e38\u89c1 FMI \u5305\u62ec\uff1a<\/p>\n<ul>\n<li>FMI 0\uff1a\u964d\u529f\u7387\u72b6\u6001<\/li>\n<li>FMI 15\uff1a\u7535\u6d41\u4f4e\u4e8e\u6b63\u5e38<\/li>\n<li>FMI 16\uff1a\u7535\u6d41\u9ad8\u4e8e\u6b63\u5e38<\/li>\n<\/ul>\n<h2 id=\"parts-involved-and-their-roles\">\u6d89\u53ca\u7684\u90e8\u4ef6\u53ca\u5176\u4f5c\u7528<\/h2>\n<p>\u89e6\u53d1 SPN 5246 \u7684\u4e3b\u8981\u7ec4\u4ef6\u5305\u62ec\uff1a<\/p>\n<ol>\n<li><strong>DEF \u6cf5<\/strong>\uff1a\u8d1f\u8d23\u4e3a SCR \u7cfb\u7edf\u589e\u538b\u5e76\u8f93\u9001 DEF\u3002<\/li>\n<li><strong>DEF \u55b7\u5c04\u5668<\/strong>\uff1a\u5c06 DEF \u55b7\u5c04\u5230\u6392\u6c14\u6d41\u4e2d\u4ee5\u51cf\u5c11 NOx \u6392\u653e\u3002<\/li>\n<li><strong>DEF \u6cb9\u7bb1\u548c\u6db2\u4f4d\u4f20\u611f\u5668<\/strong>\uff1a\u50a8\u5b58 DEF \u5e76\u76d1\u63a7\u5176\u6db2\u4f4d\u3002<\/li>\n<li><strong>SCR \u50ac\u5316\u5242<\/strong>\uff1a\u5229\u7528 DEF \u5c06 NOx \u8f6c\u5316\u4e3a\u65e0\u5bb3\u7684\u6c2e\u6c14\u548c\u6c34\u3002<\/li>\n<\/ol>\n<h2 id=\"common-causes\">\u5e38\u89c1\u539f\u56e0<\/h2>\n<p>SPN 5246 \u7684\u4e00\u4e9b\u5e38\u89c1\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>DEF \u6cf5\u6216\u55b7\u5c04\u5668\u6545\u969c<\/li>\n<li>DEF \u7ba1\u7ebf\u6216\u8fc7\u6ee4\u5668\u5835\u585e<\/li>\n<li>DEF \u8d28\u91cf\u4f4e\u6216\u6c61\u67d3<\/li>\n<li>DEF \u6db2\u4f4d\u4f20\u611f\u5668\u6545\u969c<\/li>\n<li>\u7535\u7ebf\u6216\u63a5\u5934\u635f\u574f<\/li>\n<\/ul>\n<h2 id=\"diagnosis-and-repair-steps\">\u8bca\u65ad\u548c\u4fee\u590d\u6b65\u9aa4<\/h2>\n<ol>\n<li>\u4f7f\u7528\u8bca\u65ad\u626b\u63cf\u4eea\u83b7\u53d6\u6545\u969c\u4ee3\u7801\uff0c\u5e76\u68c0\u67e5\u76f8\u5173\u4ee3\u7801\uff0c\u5982 SPN 4334 \u6216 SPN 4339\u3002<\/li>\n<li>\u68c0\u67e5 DEF \u6cb9\u7bb1\u6db2\u4f4d\u548c\u8d28\u91cf\u3002\u5982\u679c\u6c61\u67d3\u6216\u8d28\u91cf\u4f4e\uff0c\u5219\u66f4\u6362 DEF\u3002<\/li>\n<li>\u68c0\u67e5 DEF \u7ba1\u7ebf\u548c\u8fc7\u6ee4\u5668\u662f\u5426\u5835\u585e\u6216\u635f\u574f\u3002\u6839\u636e\u9700\u8981\u6e05\u6d01\u6216\u66f4\u6362\u3002<\/li>\n<li>\u6d4b\u8bd5 DEF \u6cf5\u538b\u529b\u548c\u55b7\u5c04\u5668\u64cd\u4f5c\u3002\u66f4\u6362\u6545\u969c\u90e8\u4ef6\u3002<\/li>\n<li>\u9a8c\u8bc1\u7535\u7ebf\u548c\u63a5\u5934\u7684\u5b8c\u6574\u6027\u3002\u4fee\u7406\u6216\u66f4\u6362\u635f\u574f\u7684\u7535\u7ebf\u3002<\/li>\n<li>\u6e05\u9664\u6545\u969c\u4ee3\u7801\u5e76\u8fdb\u884c\u8bd5\u9a7e\u4ee5\u786e\u8ba4\u4fee\u590d\u3002<\/li>\n<\/ol>\n<h2 id=\"prevention-and-costs\">\u9884\u9632\u548c\u6210\u672c<\/h2>\n<p>\u4e3a\u4e86\u9632\u6b62 SPN 5246 \u7684\u53d1\u751f\uff0c\u9700\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u7ef4\u62a4 DEF \u7cfb\u7edf\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u7b26\u5408 ISO 22241 \u6807\u51c6\u7684\u9ad8\u8d28\u91cf DEF<\/li>\n<li>\u5b9a\u671f\u68c0\u67e5 DEF \u7ba1\u7ebf\u3001\u8fc7\u6ee4\u5668\u548c\u7ec4\u4ef6<\/li>\n<li>\u53ca\u65f6\u89e3\u51b3\u4efb\u4f55\u76f8\u5173\u6545\u969c\u4ee3\u7801<\/li>\n<\/ul>\n<p>SPN 5246 \u7684\u7ef4\u4fee\u8d39\u7528\u53ef\u80fd\u56e0\u5177\u4f53\u539f\u56e0\u548c\u6d89\u53ca\u7684\u90e8\u4ef6\u800c\u5f02\u3002\u9884\u8ba1\u8d39\u7528\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>DEF \u6cf5\uff1a$500-$1,500\uff08\u20ac450-\u20ac1,350\uff09<\/li>\n<li>DEF \u55b7\u5c04\u5668\uff1a$300-$800\uff08\u20ac270-\u20ac720\uff09<\/li>\n<li>DEF \u6cb9\u7bb1\u548c\u4f20\u611f\u5668\uff1a$400-$1,000\uff08\u20ac360-\u20ac900\uff09<\/li>\n<li>\u4eba\u5de5\u8d39\u7528\uff1a$100-$200\uff08\u20ac90-\u20ac180\uff09\u6bcf\u5c0f\u65f6<\/li>\n<\/ul>\n<h2 id=\"related-fault-codes\">\u76f8\u5173\u6545\u969c\u4ee3\u7801<\/h2>\n<p>\u901a\u5e38\u4e0e SPN 5246 \u4e00\u8d77\u51fa\u73b0\u7684\u5176\u4ed6\u6545\u969c\u4ee3\u7801\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>SPN 4334: DEF \u538b\u529b\u8fc7\u4f4e<\/li>\n<li>SPN 4339: DEF \u538b\u529b\u8fc7\u9ad8<\/li>\n<li>SPN 4364 FMI 18\uff1aDEF \u55b7\u5c04\u5668\u7535\u8def<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u4e86\u89e3 SPN 5246 \u7684\u6210\u56e0\u53ca\u6b63\u786e\u7684\u8bca\u65ad\u548c\u4fee\u590d\u7a0b\u5e8f\uff0c\u5de5\u7a0b\u5e08\u548c\u6280\u5e08\u53ef\u4ee5\u6709\u6548\u89e3\u51b3\u8be5\u6545\u969c\u4ee3\u7801\uff0c\u786e\u4fdd\u67f4\u6cb9\u8f66\u8f86\u9ad8\u6548\u8fd0\u884c\u3002<\/p>\n<h2 id=\"faq-fault-code-spn-5246\">\u5e38\u89c1\u95ee\u9898\u89e3\u7b54\uff08FAQ\uff09\uff1a\u6545\u969c\u4ee3\u7801 SPN 5246<\/h2>\n<h3 id=\"what-is-fault-code-spn-5246-\">\u6545\u969c\u4ee3\u7801 SPN 5246 \u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u6545\u969c\u4ee3\u7801 SPN 5246 \u662f\u4e00\u4e2a\u901a\u7528\u8bca\u65ad\u6545\u969c\u4ee3\u7801\uff08DTC\uff09\uff0c\u8868\u793a\u914d\u5907\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f\uff08SCR\uff09\u7cfb\u7edf\u7684\u67f4\u6cb9\u53d1\u52a8\u673a\u7684\u67f4\u6cb9\u6392\u6c14\u6db2\uff08DEF\uff09\u7cfb\u7edf\u5b58\u5728\u95ee\u9898\u3002<\/p>\n<h3 id=\"what-are-the-symptoms-of-spn-5246-\">SPN 5246 \u7684\u75c7\u72b6\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u5f53 SPN 5246 \u88ab\u89e6\u53d1\u65f6\uff0c\u901a\u5e38\u4f1a\u5bfc\u81f4\u964d\u529f\u7387\u72b6\u6001\uff0c\u5c06\u8f66\u8f86\u901f\u5ea6\u9650\u5236\u5728\u7ea6 5 \u82f1\u91cc\/\u5c0f\u65f6\uff088 \u516c\u91cc\/\u5c0f\u65f6\uff09\u3002\u5176\u4ed6\u75c7\u72b6\u5305\u62ec\u8b66\u544a\u706f\u4eae\u8d77\uff08\u6545\u969c\u6307\u793a\u706f\u3001\u68c0\u67e5\u53d1\u52a8\u673a\u706f\u3001\u505c\u6b62\u53d1\u52a8\u673a\u706f\uff09\uff0c\u4ee5\u53ca\u53ef\u80fd\u9700\u8981\u8fdb\u884c\u518d\u751f\u5904\u7406\u3002<\/p>\n<h3 id=\"is-it-safe-to-continue-driving-with-spn-5246-\">SPN 5246 \u6fc0\u6d3b\u65f6\u7ee7\u7eed\u9a7e\u9a76\u662f\u5426\u5b89\u5168\uff1f<\/h3>\n<p>\u4e0d\u5efa\u8bae\u5728 SPN 5246 \u6fc0\u6d3b\u65f6\u7ee7\u7eed\u9a7e\u9a76\u3002\u8fd9\u53ef\u80fd\u4f1a\u5bf9 DEF \u7cfb\u7edf\u9020\u6210\u8fdb\u4e00\u6b65\u635f\u5bb3\uff0c\u5e76\u5bfc\u81f4\u66f4\u4e25\u91cd\u7684\u53d1\u52a8\u673a\u964d\u529f\u7387\u6216\u505c\u673a\u3002\u6700\u597d\u505c\u6b62\u9a7e\u9a76\u5e76\u5c06\u8f66\u8f86\u62d6\u81f3\u7ecf\u9500\u5546\u6216\u5408\u683c\u7684\u7ef4\u4fee\u5e97\u3002<\/p>\n<h3 id=\"what-are-the-common-causes-of-spn-5246-\">SPN 5246 \u7684\u5e38\u89c1\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>SPN 5246 \u7684\u5e38\u89c1\u539f\u56e0\u5305\u62ec DEF \u6cf5\u6216\u55b7\u5c04\u5668\u6545\u969c\u3001DEF \u7ba1\u7ebf\u6216\u8fc7\u6ee4\u5668\u5835\u585e\u3001DEF \u8d28\u91cf\u4f4e\u6216\u53d7\u6c61\u67d3\u3001DEF \u6db2\u4f4d\u4f20\u611f\u5668\u6545\u969c\u4ee5\u53ca\u7535\u7ebf\u6216\u63a5\u5934\u635f\u574f\u3002<\/p>\n<h3 id=\"what-are-the-steps-to-diagnose-spn-5246-\">\u8bca\u65ad SPN 5246 \u7684\u6b65\u9aa4\u662f\u4ec0\u4e48\uff1f<\/h3>\n<ol>\n<li>\u4f7f\u7528\u8bca\u65ad\u626b\u63cf\u4eea\u83b7\u53d6\u6545\u969c\u4ee3\u7801\u5e76\u68c0\u67e5\u76f8\u5173\u4ee3\u7801\u3002<\/li>\n<li>\u68c0\u67e5 DEF \u6cb9\u7bb1\u6db2\u4f4d\u548c\u8d28\u91cf\u3002\u5982\u679c DEF \u88ab\u6c61\u67d3\u6216\u8d28\u91cf\u4f4e\uff0c\u5219\u66f4\u6362\u3002<\/li>\n<li>\u68c0\u67e5 DEF \u7ba1\u7ebf\u548c\u8fc7\u6ee4\u5668\u662f\u5426\u5835\u585e\u6216\u635f\u574f\u3002\u6839\u636e\u9700\u8981\u6e05\u6d01\u6216\u66f4\u6362\u3002<\/li>\n<li>\u6d4b\u8bd5 DEF \u6cf5\u538b\u529b\u548c\u55b7\u5c04\u5668\u64cd\u4f5c\u3002\u66f4\u6362\u6545\u969c\u90e8\u4ef6\u3002<\/li>\n<li>\u9a8c\u8bc1\u7535\u7ebf\u548c\u63a5\u5934\u7684\u5b8c\u6574\u6027\u3002\u4fee\u7406\u6216\u66f4\u6362\u635f\u574f\u7684\u7535\u7ebf\u3002<\/li>\n<\/ol>\n<h3 id=\"how-can-i-clear-spn-5246-\">\u5982\u4f55\u6e05\u9664 SPN 5246\uff1f<\/h3>\n<p>\u8981\u6e05\u9664 SPN 5246\uff0c\u5fc5\u987b\u9996\u5148\u8bca\u65ad\u5e76\u4fee\u590d\u5f15\u8d77\u8be5\u6545\u969c\u4ee3\u7801\u7684\u6839\u672c\u539f\u56e0\u3002\u5b8c\u6210\u7ef4\u4fee\u540e\uff0c\u4f7f\u7528\u8bca\u65ad\u626b\u63cf\u4eea\u6e05\u9664\u6545\u969c\u4ee3\u7801\uff0c\u5e76\u8fdb\u884c\u8bd5\u9a7e\u4ee5\u786e\u8ba4\u4fee\u590d\u6548\u679c\u3002<\/p>\n<h3 id=\"what-are-the-repair-costs-for-spn-5246-\">SPN 5246 \u7684\u7ef4\u4fee\u8d39\u7528\u662f\u591a\u5c11\uff1f<\/h3>\n<p>SPN 5246 \u7684\u7ef4\u4fee\u8d39\u7528\u53ef\u80fd\u56e0\u5177\u4f53\u539f\u56e0\u548c\u6d89\u53ca\u7684\u90e8\u4ef6\u800c\u5f02\u3002\u9884\u8ba1 DEF \u6cf5\u7684\u8d39\u7528\u4e3a $500-$1,500\uff08\u20ac450-\u20ac1,350\uff09\uff0cDEF \u55b7\u5c04\u5668 $300-$800\uff08\u20ac270-\u20ac720\uff09\uff0cDEF \u6cb9\u7bb1\u548c\u4f20\u611f\u5668 $400-$1,000\uff08\u20ac360-\u20ac900\uff09\uff0c\u4eba\u5de5\u8d39\u7528\u4e3a\u6bcf\u5c0f\u65f6 $100-$200\uff08\u20ac90-\u20ac180\uff09\u3002<\/p>\n<h3 id=\"what-is-the-difference-between-spn-5246-fmi-0-fmi-15-and-fmi-16-\">SPN 5246 \u4e2d FMI 0\u3001FMI 15 \u548c FMI 16 \u4e4b\u95f4\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f<\/h3>\n<ul>\n<li>FMI 0 \u8868\u793a\u964d\u529f\u7387\u72b6\u6001\u3002<\/li>\n<li>FMI 15 \u8868\u793a\u7535\u6d41\u4f4e\u4e8e\u6b63\u5e38\u3002<\/li>\n<li>FMI 16 \u8868\u793a\u7535\u6d41\u9ad8\u4e8e\u6b63\u5e38\u3002<\/li>\n<\/ul>\n<h3 id=\"what-other-fault-codes-are-commonly-associated-with-spn-5246-\">\u901a\u5e38\u4e0e SPN 5246 \u76f8\u5173\u7684\u5176\u4ed6\u6545\u969c\u4ee3\u7801\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>\u901a\u5e38\u4e0e SPN 5246 \u4e00\u8d77\u51fa\u73b0\u7684\u5176\u4ed6\u6545\u969c\u4ee3\u7801\u5305\u62ec SPN 4334\uff08DEF \u538b\u529b\u8fc7\u4f4e\uff09\uff0cSPN 4339\uff08DEF \u538b\u529b\u8fc7\u9ad8\uff09\uff0c\u4ee5\u53ca SPN 4364 FMI 18\uff08DEF \u55b7\u5c04\u5668\u7535\u8def\uff09\u3002<\/p>\n<h3 id=\"what-components-are-involved-in-triggering-spn-5246-\">\u89e6\u53d1 SPN 5246 \u7684\u7ec4\u4ef6\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>\u89e6\u53d1 SPN 5246 \u7684\u4e3b\u8981\u7ec4\u4ef6\u5305\u62ec DEF \u6cf5\u3001DEF \u55b7\u5c04\u5668\u3001DEF \u6cb9\u7bb1\u548c\u6db2\u4f4d\u4f20\u611f\u5668\uff0c\u4ee5\u53ca SCR \u50ac\u5316\u5242\u3002<\/p>\n<h3 id=\"how-can-i-prevent-spn-5246-from-occurring-\">\u5982\u4f55\u9884\u9632 SPN 5246 \u7684\u53d1\u751f\uff1f<\/h3>\n<p>\u4e3a\u4e86\u9632\u6b62 SPN 5246\uff0c\u9700\u4f7f\u7528\u7b26\u5408 ISO 22241 \u6807\u51c6\u7684\u9ad8\u8d28\u91cf DEF\uff0c\u5b9a\u671f\u68c0\u67e5 DEF \u7ba1\u7ebf\u3001\u8fc7\u6ee4\u5668\u548c\u7ec4\u4ef6\uff0c\u5e76\u53ca\u65f6\u89e3\u51b3\u4efb\u4f55\u76f8\u5173\u6545\u969c\u4ee3\u7801\u3002<\/p>\n<h3 id=\"what-is-the-role-of-the-def-pump-in-the-scr-system-\">DEF \u6cf5\u5728 SCR \u7cfb\u7edf\u4e2d\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>DEF \u6cf5\u8d1f\u8d23\u4e3a SCR \u7cfb\u7edf\u589e\u538b\u5e76\u8f93\u9001 DEF\u3002<\/p>\n<h3 id=\"what-does-the-def-injector-do-\">DEF \u55b7\u5c04\u5668\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>DEF \u55b7\u5c04\u5668\u5c06 DEF \u55b7\u5c04\u5230\u6392\u6c14\u6d41\u4e2d\u4ee5\u51cf\u5c11 NOx \u6392\u653e\u3002<\/p>\n<h3 id=\"what-is-the-purpose-of-the-def-tank-and-level-sensor-\">DEF \u6cb9\u7bb1\u548c\u6db2\u4f4d\u4f20\u611f\u5668\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>DEF \u6cb9\u7bb1\u7528\u4e8e\u5b58\u50a8 DEF\uff0c\u800c\u6db2\u4f4d\u4f20\u611f\u5668\u7528\u4e8e\u76d1\u63a7\u5176\u6db2\u4f4d\u3002<\/p>\n<h3 id=\"how-does-the-scr-catalyst-work-\">SCR \u50ac\u5316\u5242\u5982\u4f55\u5de5\u4f5c\uff1f<\/h3>\n<p>SCR \u50ac\u5316\u5242\u5229\u7528 DEF \u5c06 NOx \u8f6c\u5316\u4e3a\u65e0\u5bb3\u7684\u6c2e\u6c14\u548c\u6c34\u3002<\/p>\n<h3 id=\"what-is-a-derate-condition-and-how-does-it-relate-to-spn-5246-\">\u4ec0\u4e48\u662f\u964d\u529f\u7387\u72b6\u6001\uff1f\u5b83\u4e0e SPN 5246 \u6709\u4f55\u5173\u7cfb\uff1f<\/h3>\n<p>\u964d\u529f\u7387\u72b6\u6001\u662f\u6307\u4e3a\u4fdd\u62a4\u7cfb\u7edf\u514d\u53d7\u8fdb\u4e00\u6b65\u635f\u5bb3\u800c\u6545\u610f\u964d\u4f4e\u53d1\u52a8\u673a\u7684\u6027\u80fd\u3002\u5728 SPN 5246 \u7684\u60c5\u51b5\u4e0b\uff0c\u964d\u529f\u7387\u901a\u5e38\u5c06\u8f66\u8f86\u901f\u5ea6\u9650\u5236\u5728\u7ea6 5 \u82f1\u91cc\/\u5c0f\u65f6\uff088 \u516c\u91cc\/\u5c0f\u65f6\uff09\u3002<\/p>\n<h3 id=\"what-is-a-regeneration-and-why-is-it-necessary-when-dealing-with-spn-5246-\">\u4ec0\u4e48\u662f\u518d\u751f\uff1f\u5728\u5904\u7406 SPN 5246 \u65f6\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83\uff1f<\/h3>\n<p>\u518d\u751f\u662f\u6307\u901a\u8fc7\u71c3\u70e7\u67f4\u6cb9\u9897\u7c92\u8fc7\u6ee4\u5668\uff08DPF\uff09\u4e2d\u7684\u79ef\u78b3\u6765\u6062\u590d SCR \u7cfb\u7edf\u6548\u7387\u7684\u8fc7\u7a0b\u3002\u5728\u5904\u7406 SPN 5246 \u548c\u76f8\u5173\u6545\u969c\u4ee3\u7801\u65f6\uff0c\u901a\u5e38\u9700\u8981\u8fdb\u884c\u9ad8\u6020\u901f\u518d\u751f\u3002<\/p>\n<h3 id=\"what-is-the-importance-of-using-high-quality-def-\">\u4f7f\u7528\u9ad8\u8d28\u91cf DEF \u7684\u91cd\u8981\u6027\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u4f7f\u7528\u7b26\u5408 ISO 22241 \u6807\u51c6\u7684\u9ad8\u8d28\u91cf DEF \u5bf9\u4e8e\u7ef4\u62a4 SCR \u7cfb\u7edf\u7684\u6b63\u5e38\u529f\u80fd\u548c\u9632\u6b62 SPN 5246 \u7b49\u95ee\u9898\u81f3\u5173\u91cd\u8981\u3002\u4f4e\u8d28\u91cf\u6216\u53d7\u6c61\u67d3\u7684 DEF \u4f1a\u5bfc\u81f4\u7cfb\u7edf\u635f\u574f\u5e76\u89e6\u53d1\u6545\u969c\u4ee3\u7801\u3002<\/p>\n<h3 id=\"how-often-should-i-inspect-the-def-system-components-\">\u6211\u5e94\u8be5\u591a\u4e45\u68c0\u67e5\u4e00\u6b21 DEF \u7cfb\u7edf\u7ec4\u4ef6\uff1f<\/h3>\n<p>\u5efa\u8bae\u5b9a\u671f\u68c0\u67e5 DEF \u7ba1\u7ebf\u3001\u8fc7\u6ee4\u5668\u548c\u7ec4\u4ef6\uff0c\u4f8b\u5982\u5728\u5e38\u89c4\u7ef4\u62a4\u671f\u95f4\u6216\u51fa\u73b0\u76f8\u5173\u6545\u969c\u4ee3\u7801\u65f6\uff0c\u4ee5\u4fbf\u53ca\u65e9\u53d1\u73b0\u548c\u89e3\u51b3\u4efb\u4f55\u95ee\u9898\u3002<\/p>\n<h3 id=\"what-should-i-do-if-i-suspect-an-issue-with-the-def-system-\">\u5982\u679c\u6211\u6000\u7591 DEF \u7cfb\u7edf\u6709\u95ee\u9898\uff0c\u6211\u5e94\u8be5\u600e\u4e48\u529e\uff1f<\/h3>\n<p>\u5982\u679c\u6000\u7591 DEF \u7cfb\u7edf\u6709\u95ee\u9898\uff0c\u6700\u597d\u5c3d\u5feb\u8ba9\u5408\u683c\u6280\u5e08\u5bf9\u8f66\u8f86\u8fdb\u884c\u8bca\u65ad\u3002\u5ffd\u89c6\u95ee\u9898\u53ef\u80fd\u4f1a\u5bfc\u81f4\u66f4\u4e25\u91cd\u7684\u635f\u5bb3\u548c\u6602\u8d35\u7684\u7ef4\u4fee\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6545\u969c\u4ee3\u7801 SPN 5246\uff1a\u5de5\u7a0b\u5e08\u548c\u6280\u5e08\u7684\u8be6\u7ec6\u6307\u5357 \u6545\u969c\u4ee3\u7801 SPN 5246 \u662f\u4e00\u4e2a\u901a\u7528\u8bca\u65ad\u6545\u969c\u4ee3\u7801\uff08DTC<\/p>\n","protected":false},"author":13,"featured_media":288076,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-288075","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts\/288075","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/comments?post=288075"}],"version-history":[{"count":2,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts\/288075\/revisions"}],"predecessor-version":[{"id":288081,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/posts\/288075\/revisions\/288081"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/media\/288076"}],"wp:attachment":[{"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/media?parent=288075"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/categories?post=288075"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ziptuning.com\/zh\/wp-json\/wp\/v2\/tags?post=288075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}