{"id":287602,"date":"2024-10-23T05:03:05","date_gmt":"2024-10-23T05:03:05","guid":{"rendered":"https:\/\/www.ziptuning.com\/zh\/?p=287602"},"modified":"2024-11-04T08:03:01","modified_gmt":"2024-11-04T08:03:01","slug":"p203f-reductant-dosing-valve-calibration-values-not-learned","status":"publish","type":"post","link":"https:\/\/www.ziptuning.com\/zh\/blog\/p203f-reductant-dosing-valve-calibration-values-not-learned\/","title":{"rendered":"P203F &#8211; \u672a\u5b66\u4e60\u8fd8\u539f\u5242\u8ba1\u91cf\u9600\u6821\u51c6\u503c"},"content":{"rendered":"<h2 id=\"understanding-the-p203f-error-code-reductant-level-too-low\">\u4e86\u89e3 P203F \u9519\u8bef\u4ee3\u7801\uff1a\u8fd8\u539f\u5242\u6db2\u4f4d\u8fc7\u4f4e<\/h2>\n<p><strong>P203F<\/strong> \u9519\u8bef\u4ee3\u7801\u8868\u793a\u914d\u5907\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f (SCR) \u7cfb\u7edf\u7684\u8f66\u8f86\u4e2d\u7684\u8fd8\u539f\u5242\uff08\u67f4\u6cb9\u6392\u653e\u6db2\u6216 DEF\uff09\u6db2\u4f4d\u8fc7\u4f4e\u3002\u5f53\u53d1\u52a8\u673a\u63a7\u5236\u6a21\u5757 (ECM) \u68c0\u6d4b\u5230 DEF \u6db2\u4f4d\u4f4e\u4e8e\u67d0\u4e2a\u9608\u503c\u65f6\uff0c\u4f1a\u89e6\u53d1\u6b64\u4ee3\u7801\u3002<\/p>\n<div class=\"workshop-experience-text\">\n<p>\u5728\u6211\u4eec\u7684\u8f66\u95f4\uff0c\u6211\u4eec\u7ecf\u5e38\u9047\u5230 P203F \u4ee3\u7801\uff0c\u5c24\u5176\u662f\u5728\u6b27\u6d32\u54c1\u724c\u7684\u8f66\u8f86\u4e2d\u5bb9\u6613\u51fa\u73b0\u8fd9\u4e2a\u95ee\u9898\u3002\u5c31\u5728\u4e0a\u5468\uff0c\u6211\u4eec\u63a5\u5f85\u4e86\u4e00\u8f86 BMW X5 \u548c\u4e00\u8f86\u5965\u8fea Q7\uff0c\u4e24\u4e2a\u8f66\u8f86\u90fd\u663e\u793a\u4e86\u201c\u8fd8\u539f\u5242\u6db2\u4f4d\u8fc7\u4f4e\u201d\u7684\u8b66\u544a\u3002\u7ecf\u8fc7\u8bba\u575b\u7684\u4e00\u4e9b\u8ba8\u8bba\uff0c\u663e\u800c\u6613\u89c1\uff0c\u8fd9\u5bf9\u8bb8\u591a\u6b27\u6d32\u67f4\u6cb9\u8f66\u578b\u6765\u8bf4\u662f\u4e00\u4e2a\u5e38\u89c1\u95ee\u9898\uff0c\u7279\u522b\u662f\u90a3\u4e9b\u62e5\u6709\u590d\u6742\u6392\u653e\u63a7\u5236\u7cfb\u7edf\u7684\u8f66\u578b\u3002\u6211\u4eec\u8fd8\u5728\u6885\u8d5b\u5fb7\u65af-\u5954\u9a70 Sprinter \u548c\u5927\u4f17\u9014\u9510\u8f66\u578b\u4e0a\u770b\u5230\u4e86\u8fd9\u4e2a\u4ee3\u7801\u3002\u867d\u7136\u7f8e\u56fd\u548c\u4e9a\u6d32\u54c1\u724c\u4e5f\u53ef\u80fd\u9047\u5230 P203F\uff0c\u6211\u4eec\u7684\u7ecf\u9a8c\u8868\u660e\uff0c\u5b9d\u9a6c\u3001\u5965\u8fea\u3001\u6885\u8d5b\u5fb7\u65af\u548c\u5927\u4f17\u7b49\u6b27\u6d32\u5236\u9020\u5546\u66f4\u5bb9\u6613\u9047\u5230\u6b64\u95ee\u9898\uff0c\u539f\u56e0\u662f\u5b83\u4eec\u7684 SCR \u7cfb\u7edf\u66f4\u52a0\u5148\u8fdb\uff0c\u5e76\u4e14\u5bf9\u6392\u653e\u6cd5\u89c4\u7684\u8981\u6c42\u66f4\u52a0\u4e25\u683c\u3002<\/p>\n<\/div>\n<h2 id=\"urgency-and-severity\">\u7d27\u6025\u6027\u548c\u4e25\u91cd\u6027<\/h2>\n<p>\u5c3d\u7ba1 P203F \u4ee3\u7801\u672c\u8eab\u5e76\u4e0d\u7acb\u5373\u5371\u53ca\u8f66\u8f86\uff0c\u4f46\u53ca\u65f6\u89e3\u51b3\u8be5\u95ee\u9898\u975e\u5e38\u91cd\u8981\u3002\u7ee7\u7eed\u4ee5\u4f4e DEF \u6db2\u4f4d\u9a7e\u9a76\u53ef\u80fd\u5bfc\u81f4\u53d1\u52a8\u673a\u6027\u80fd\u4e0b\u964d\u3001\u6392\u653e\u589e\u52a0\uff0c\u5e76\u53ef\u80fd\u635f\u574f SCR \u7cfb\u7edf\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8f66\u8f86\u53ef\u80fd\u8fdb\u5165\u201c\u8ddb\u884c\u6a21\u5f0f\u201d\uff0c\u751a\u81f3\u53ef\u80fd\u5728 DEF \u8865\u5145\u4e4b\u524d\u65e0\u6cd5\u91cd\u65b0\u542f\u52a8\u3002<\/p>\n<p>\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u4ee5\u5b89\u5168\u9a7e\u9a76\u5230\u6700\u8fd1\u7684\u670d\u52a1\u7ad9\u6216\u7ecf\u9500\u5546\u5904\u8fdb\u884c\u7ef4\u62a4\uff0c\u4f46\u4e0d\u5efa\u8bae\u957f\u65f6\u95f4\u5ffd\u7565\u6b64\u8b66\u544a\u3002<\/p>\n<h2 id=\"parts-involved\">\u6d89\u53ca\u7684\u90e8\u4ef6<\/h2>\n<p>P203F \u4ee3\u7801\u6d89\u53ca\u7684\u4e3b\u8981\u7ec4\u4ef6\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u8fd8\u539f\u5242 (DEF) \u50a8\u7f50<\/strong>\uff1a\u50a8\u5b58\u67f4\u6cb9\u6392\u653e\u6db2\uff0c\u901a\u5e38\u5bb9\u91cf\u4e3a 10-20 \u5347\uff082.6-5.3 \u7f8e\u5236\u52a0\u4ed1\uff09\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668<\/strong>\uff1a\u6d4b\u91cf DEF \u50a8\u7f50\u4e2d\u7684\u6db2\u4f4d\u5e76\u5c06\u4fe1\u606f\u4f20\u9012\u7ed9 ECM\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f (SCR) \u7cfb\u7edf<\/strong>\uff1a\u5c06 DEF \u6ce8\u5165\u6392\u6c14\u6d41\u4e2d\uff0c\u4ee5\u5c06\u6709\u5bb3\u7684\u6c2e\u6c27\u5316\u7269 (NOx) \u8f6c\u5316\u4e3a\u65e0\u5bb3\u7684\u6c2e\u6c14\u548c\u6c34\u3002<\/p>\n<\/li>\n<\/ol>\n<h3 id=\"common-causes\">\u5e38\u89c1\u539f\u56e0<\/h3>\n<p>P203F \u4ee3\u7801\u7684\u5e38\u89c1\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u6b63\u5e38\u6d88\u8017\u5bfc\u81f4\u7684 DEF \u6db2\u4f4d\u8fc7\u4f4e<\/li>\n<li>\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\u6545\u969c<\/li>\n<li>\u7ebf\u8def\u95ee\u9898\uff0c\u5982\u7ebf\u8def\u635f\u574f\u6216\u8fde\u63a5\u4e0d\u826f<\/li>\n<li>\u5411 DEF \u50a8\u7f50\u4e2d\u6dfb\u52a0\u4e86\u9519\u8bef\u7684\u6db2\u4f53<\/li>\n<\/ol>\n<h2 id=\"diagnostic-steps\">\u8bca\u65ad\u6b65\u9aa4<\/h2>\n<p>\u8981\u8bca\u65ad P203F \u4ee3\u7801\uff0c\u8bf7\u6309\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a<\/p>\n<ol>\n<li>\u901a\u8fc7\u76ee\u89c6\u68c0\u67e5\u6216\u4f7f\u7528\u91cf\u6cb9\u5c3a\uff08\u5982\u679c\u6709\uff09\u68c0\u67e5 DEF \u6db2\u4f4d\u3002\u5982\u679c\u6db2\u4f4d\u4f4e\uff0c\u8bf7\u7528\u5408\u9002\u7684 DEF \u8865\u5145\u3002<\/li>\n<li>\u6e05\u9664\u4ee3\u7801\u5e76\u8fdb\u884c\u8bd5\u9a7e\uff0c\u67e5\u770b\u4ee3\u7801\u662f\u5426\u91cd\u65b0\u51fa\u73b0\u3002<\/li>\n<li>\u5982\u679c\u4ee3\u7801\u4ecd\u7136\u5b58\u5728\uff0c\u8bf7\u4f7f\u7528\u626b\u63cf\u5de5\u5177\u76d1\u63a7\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\u7684\u8bfb\u6570\u3002<\/li>\n<li>\u68c0\u67e5\u4e0e\u8fd8\u539f\u5242\u7cfb\u7edf\u76f8\u5173\u7684\u7ebf\u8def\u548c\u8fde\u63a5\u662f\u5426\u6709\u635f\u574f\u6216\u8150\u8680\u3002<\/li>\n<li>\u5982\u679c\u4f20\u611f\u5668\u8bfb\u6570\u4e0d\u6b63\u786e\u6216\u7ebf\u8def\u6709\u6545\u969c\uff0c\u8bf7\u66f4\u6362\u53d7\u5f71\u54cd\u7684\u90e8\u4ef6\u3002<\/li>\n<\/ol>\n<h2 id=\"solutions-and-prevention\">\u89e3\u51b3\u65b9\u6848\u53ca\u9884\u9632\u63aa\u65bd<\/h2>\n<p>\u8981\u89e3\u51b3 P203F \u4ee3\u7801\u5e76\u9632\u6b62\u5176\u590d\u53d1\uff1a<\/p>\n<ol>\n<li>\u5f53\u6db2\u4f4d\u8fc7\u4f4e\u65f6\uff0c\u7528\u9002\u5f53\u7684 DEF \u8865\u5145 DEF \u50a8\u7f50\u3002<\/li>\n<li>\u66f4\u6362\u6545\u969c\u7684\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\u3002<\/li>\n<li>\u4fee\u590d\u6216\u66f4\u6362\u635f\u574f\u7684\u7ebf\u8def\u6216\u8fde\u63a5\u5668\u3002<\/li>\n<li>\u786e\u4fdd\u53ea\u5411 DEF \u50a8\u7f50\u4e2d\u6dfb\u52a0\u6b63\u786e\u7684 DEF \u6db2\u4f53\uff0c\u56e0\u4e3a\u5176\u4ed6\u6db2\u4f53\u53ef\u80fd\u4f1a\u635f\u574f SCR \u7cfb\u7edf\u3002<\/li>\n<\/ol>\n<h2 id=\"repair-costs\">\u7ef4\u4fee\u6210\u672c<\/h2>\n<p>\u4fee\u590d P203F \u4ee3\u7801\u7684\u8d39\u7528\u53d6\u51b3\u4e8e\u539f\u56e0\uff1a<\/p>\n<ul>\n<li>DEF \u8865\u5145\uff1a10-30 \u7f8e\u5143\uff088-25 \u6b27\u5143\uff09\u7528\u4e8e 2.5 \u7f8e\u5236\u52a0\u4ed1\uff089.5 \u5347\uff09\u7684\u74f6\u88c5 DEF<\/li>\n<li>\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\u66f4\u6362\uff1a150-500 \u7f8e\u5143\uff08125-420 \u6b27\u5143\uff09<\/li>\n<li>\u7ebf\u8def\u7ef4\u4fee\uff1a50-200 \u7f8e\u5143\uff0840-170 \u6b27\u5143\uff09\uff0c\u53d6\u51b3\u4e8e\u635f\u574f\u7a0b\u5ea6<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u53ca\u65f6\u4e14\u9002\u5f53\u5730\u89e3\u51b3 P203F \u4ee3\u7801\uff0c\u60a8\u53ef\u4ee5\u786e\u4fdd\u8f66\u8f86\u7684 SCR \u7cfb\u7edf\u7684\u6700\u4f73\u6027\u80fd\u3001\u6392\u653e\u5408\u89c4\u6027\u548c\u4f7f\u7528\u5bff\u547d\u3002<\/p>\n<h2 id=\"frequently-asked-questions-faq-about-p203f-error-code\">\u5173\u4e8e P203F \u9519\u8bef\u4ee3\u7801\u7684\u5e38\u89c1\u95ee\u9898 (FAQ)<\/h2>\n<h3 id=\"1-what-does-the-p203f-error-code-mean-\">P203F \u9519\u8bef\u4ee3\u7801\u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>P203F \u9519\u8bef\u4ee3\u7801\u8868\u793a\u914d\u5907\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f (SCR) \u7cfb\u7edf\u7684\u8f66\u8f86\u4e2d\u7684\u8fd8\u539f\u5242\uff08\u67f4\u6cb9\u6392\u653e\u6db2\u6216 DEF\uff09\u6db2\u4f4d\u8fc7\u4f4e\u3002<\/p>\n<h3 id=\"2-how-serious-is-the-p203f-code-\">P203F \u4ee3\u7801\u7684\u4e25\u91cd\u6027\u5982\u4f55\uff1f<\/h3>\n<p>\u867d\u7136 P203F \u4e0d\u662f\u7acb\u5373\u7684\u7d27\u6025\u95ee\u9898\uff0c\u4f46\u4e3a\u4e86\u907f\u514d\u53d1\u52a8\u673a\u6027\u80fd\u4e0b\u964d\u3001\u6392\u653e\u589e\u52a0\u3001SCR \u7cfb\u7edf\u635f\u574f\u4ee5\u53ca\u8f66\u8f86\u8fdb\u5165\u201c\u8ddb\u884c\u6a21\u5f0f\u201d\u6216\u65e0\u6cd5\u91cd\u65b0\u542f\u52a8\uff0c\u5e94\u5c3d\u5feb\u89e3\u51b3\u6b64\u4ee3\u7801\u3002<\/p>\n<h3 id=\"3-is-it-safe-to-drive-with-the-p203f-code-\">\u5e26\u6709 P203F \u4ee3\u7801\u9a7e\u9a76\u662f\u5426\u5b89\u5168\uff1f<\/h3>\n<p>\u60a8\u53ef\u4ee5\u9a7e\u9a76\u4e00\u5c0f\u6bb5\u8ddd\u79bb\u5230\u670d\u52a1\u7ad9\u6216\u7ecf\u9500\u5546\u5904\uff0c\u4f46\u4e0d\u8981\u957f\u65f6\u95f4\u5ffd\u7565\u6b64\u8b66\u544a\u3002<\/p>\n<h3 id=\"4-what-vehicles-can-display-the-p203f-code-\">\u54ea\u4e9b\u8f66\u8f86\u4f1a\u663e\u793a P203F \u4ee3\u7801\uff1f<\/h3>\n<p>P203F \u662f\u9002\u7528\u4e8e\u914d\u5907 SCR \u7cfb\u7edf\u7684\u5404\u79cd\u54c1\u724c\u548c\u578b\u53f7\u7684\u901a\u7528\u4ee3\u7801\uff0c\u5305\u62ec\u5b9d\u9a6c\u3001\u6885\u8d5b\u5fb7\u65af-\u5954\u9a70\u3001\u5927\u4f17\u3001\u5965\u8fea\u3001\u798f\u7279\u3001\u9053\u5947\u3001Ram\u3001GMC\u3001\u96ea\u4f5b\u5170\u548c Jeep\u3002<\/p>\n<h3 id=\"5-what-are-the-main-components-involved-with-p203f-\">P203F \u6d89\u53ca\u7684\u4e3b\u8981\u7ec4\u4ef6\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>\u5173\u952e\u90e8\u4ef6\u662f\u8fd8\u539f\u5242 (DEF) \u50a8\u7f50\u3001\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\u548c\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f (SCR) \u7cfb\u7edf\u3002<\/p>\n<h3 id=\"6-what-are-common-causes-of-the-p203f-code-\">P203F \u4ee3\u7801\u7684\u5e38\u89c1\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u6b63\u5e38\u6d88\u8017\u5bfc\u81f4\u7684 DEF \u6db2\u4f4d\u8fc7\u4f4e\u3001\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\u6545\u969c\u3001\u7ebf\u8def\u95ee\u9898\u4ee5\u53ca\u5411 DEF \u50a8\u7f50\u4e2d\u6dfb\u52a0\u9519\u8bef\u7684\u6db2\u4f53\u662f\u5e38\u89c1\u539f\u56e0\u3002<\/p>\n<h3 id=\"7-how-do-you-diagnose-the-p203f-code-\">\u5982\u4f55\u8bca\u65ad P203F \u4ee3\u7801\uff1f<\/h3>\n<p>\u68c0\u67e5 DEF \u6db2\u4f4d\uff0c\u5982\u679c\u6db2\u4f4d\u4f4e\u5219\u8865\u5145\u3002\u5982\u679c\u4ee3\u7801\u4ecd\u7136\u5b58\u5728\uff0c\u4f7f\u7528\u626b\u63cf\u5de5\u5177\u76d1\u63a7\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\uff0c\u68c0\u67e5\u7ebf\u8def\u548c\u8fde\u63a5\uff0c\u5e76\u66f4\u6362\u6545\u969c\u7ec4\u4ef6\u3002<\/p>\n<h3 id=\"8-how-do-you-fix-and-prevent-p203f-\">\u5982\u4f55\u4fee\u590d\u548c\u9884\u9632 P203F\uff1f<\/h3>\n<p>\u8865\u5145 DEF \u50a8\u7f50\u4e2d\u6b63\u786e\u7684\u6db2\u4f53\uff0c\u66f4\u6362\u6545\u969c\u7684\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\uff0c\u4fee\u7406\u7ebf\u8def\uff0c\u5e76\u786e\u4fdd\u4ec5\u4f7f\u7528\u5408\u9002\u7684 DEF \u6765\u89e3\u51b3\u548c\u9884\u9632 P203F\u3002<\/p>\n<h3 id=\"9-what-are-typical-repair-costs-for-p203f-\">P203F \u7684\u5178\u578b\u7ef4\u4fee\u8d39\u7528\u662f\u591a\u5c11\uff1f<\/h3>\n<p>DEF \u8865\u5145\u7684\u8d39\u7528\u4e3a 10-30 \u7f8e\u5143\uff0c\u6db2\u4f4d\u4f20\u611f\u5668\u66f4\u6362\u7684\u8d39\u7528\u4e3a 150-500 \u7f8e\u5143\uff0c\u7ebf\u8def\u7ef4\u4fee\u8d39\u7528\u4e3a 50-200 \u7f8e\u5143\uff0c\u53d6\u51b3\u4e8e\u635f\u574f\u7a0b\u5ea6\u3002<\/p>\n<h3 id=\"10-can-low-def-cause-other-issues-besides-p203f-\">DEF \u6db2\u4f4d\u4f4e\u662f\u5426\u4f1a\u5bfc\u81f4\u9664 P203F \u5916\u7684\u5176\u4ed6\u95ee\u9898\uff1f<\/h3>\n<p>\u662f\u7684\uff0cDEF \u6db2\u4f4d\u4f4e\u53ef\u80fd\u4f1a\u5bfc\u81f4 P20EE\uff08SCR \u6548\u7387\u4f4e\u4e8e\u9608\u503c\uff09\u3001P2BAE\uff08\u8fd8\u539f\u5242\u538b\u529b\u8fc7\u4f4e<\/p>\n<p>\uff09\u548c <a href=\"https:\/\/www.ziptuning.com\/zh\/blog\/p20e8-scr-nox-catalyst-efficiency-below-threshold\/\" title=\"P20E8\uff08\u8fd8\u539f\u5242\u6cf5\u63a7\u5236\u7535\u8def\u6253\u5f00\uff09\u7b49\u4ee3\u7801\">P20E8\uff08\u8fd8\u539f\u5242\u6cf5\u63a7\u5236\u7535\u8def\u6253\u5f00\uff09\u7b49\u4ee3\u7801<\/a>\u3002<\/p>\n<h3 id=\"11-will-adding-def-clear-the-p203f-code-\">\u8865\u5145 DEF \u662f\u5426\u4f1a\u6e05\u9664 P203F \u4ee3\u7801\uff1f<\/h3>\n<p>\u5982\u679c\u6db2\u4f4d\u4f4e\u662f\u552f\u4e00\u539f\u56e0\uff0c\u8865\u5145 DEF \u5e94\u8be5\u4f1a\u6e05\u9664 P203F\u3002\u5982\u679c\u4ee3\u7801\u518d\u6b21\u51fa\u73b0\uff0c\u53ef\u80fd\u5b58\u5728\u5176\u4ed6\u6f5c\u5728\u95ee\u9898\u3002<\/p>\n<h3 id=\"12-can-a-bad-def-sensor-cause-the-p203f-code-\">\u574f\u7684 DEF \u4f20\u611f\u5668\u662f\u5426\u4f1a\u5bfc\u81f4 P203F \u4ee3\u7801\uff1f<\/h3>\n<p>\u5f53\u7136\u53ef\u4ee5\u3002\u6545\u969c\u7684\u8fd8\u539f\u5242\u6db2\u4f4d\u4f20\u611f\u5668\u53ef\u80fd\u4f1a\u9519\u8bef\u5730\u62a5\u544a DEF \u6db2\u4f4d\u4f4e\uff0c\u5373\u4f7f\u50a8\u7f50\u5df2\u6ee1\uff0c\u4e5f\u4f1a\u89e6\u53d1 P203F \u4ee3\u7801\u3002<\/p>\n<h3 id=\"13-how-often-should-you-check-the-def-level-\">\u5e94\u591a\u4e45\u68c0\u67e5\u4e00\u6b21 DEF \u6db2\u4f4d\uff1f<\/h3>\n<p>\u5728\u6bcf\u6b21\u6362\u6cb9\u6216\u52a0\u6cb9\u65f6\u68c0\u67e5 DEF \u6db2\u4f4d\u3002\u5927\u591a\u6570\u8f66\u8f86\u8fd8\u4f1a\u5728 DEF \u6db2\u4f4d\u4e0d\u8db3\u65f6\u63d0\u4f9b\u4eea\u8868\u677f\u8b66\u544a\u3002<\/p>\n<h3 id=\"14-what-happens-if-you-run-out-of-def-completely-\">\u5982\u679c DEF \u5b8c\u5168\u8017\u5c3d\u4f1a\u600e\u6837\uff1f<\/h3>\n<p>\u5982\u679c DEF 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