{"id":44891,"date":"2022-08-08T11:31:37","date_gmt":"2022-08-08T11:31:37","guid":{"rendered":" https:\/\/dev.way.com\/blog\/?p=44891"},"modified":"2022-08-09T10:24:18","modified_gmt":"2022-08-09T10:24:18","slug":"p0602-error-code","status":"publish","type":"post","link":"https:\/\/dev.way.com\/journal\/p0602-error-code\/","title":{"rendered":"P0602 Error Code: Causes, Symptoms, Diagnosis, and How to Fix It"},"content":{"rendered":"<p style=\"text-align: center;\"><em>The OBD-II code P0602 error code implies a Control Module Programming Error. This is one of the most common OBD2 error codes. Wondering how to fix this engine code? Read to know more.\u00a0<\/em><\/p>\n<h2><span data-contrast=\"auto\">What is the P0602 error code?<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">A P0602 code happens when the Engine Control Module (ECM) gets a message from the Powertrain Control Module (PCM) that an internal programming error has been recognized. The PCM has a problem.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/www.way.com\/way-plus\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-44894 size-full aligncenter\" src=\"https:\/\/blog.way.com\/wp-content\/uploads\/2022\/08\/Save-on-car-expenses.png\" alt=\"\" width=\"794\" height=\"294\" srcset=\"http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/Save-on-car-expenses.png 794w, http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/Save-on-car-expenses-300x111.png 300w, http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/Save-on-car-expenses-768x284.png 768w\" sizes=\"auto, (max-width: 794px) 100vw, 794px\" \/><\/a><\/p>\n<p><span data-contrast=\"auto\">When the Powertrain Control Module stores a P0602 trouble code, it usually means that there is a programming error in one of the control modules, such as:<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Transmission control module<\/span><\/li>\n<li><span data-contrast=\"auto\">The anti-lock brake control module<\/span><\/li>\n<li><span data-contrast=\"auto\">Anti-theft module<\/span><\/li>\n<li><span data-contrast=\"auto\">Body control module<\/span><\/li>\n<li><span data-contrast=\"auto\">Climate control module<\/span><\/li>\n<li><span data-contrast=\"auto\">Cruise control module<\/span><\/li>\n<li><span data-contrast=\"auto\">Fuel injection control module<\/span><\/li>\n<li><span data-contrast=\"auto\">Instrument panel control module<\/span><\/li>\n<li><span data-contrast=\"auto\">Proximity alert module<\/span><\/li>\n<li><span data-contrast=\"auto\">Traction control module<\/span><\/li>\n<li><span data-contrast=\"auto\">Turbo control module<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-44918 aligncenter\" src=\"https:\/\/blog.way.com\/wp-content\/uploads\/2022\/08\/p0602-2-1024x576.jpg\" alt=\"p0602 error code\" width=\"640\" height=\"360\" srcset=\"http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/p0602-2-1024x576.jpg 1024w, http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/p0602-2-300x169.jpg 300w, http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/p0602-2-768x432.jpg 768w, http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/p0602-2.jpg 1280w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<h2><span data-contrast=\"auto\">P0602 error code: Symptoms\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">Error code P0602 needs to be rectified sooner as the conditions that caused it to be stored will undoubtedly have a significant impact on engine management. Such as:<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Hard or no start condition<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Reduction in fuel efficiency<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Stalls or rough idling of the engine<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Transmission shifting that is harsh or erratic<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span data-contrast=\"auto\">P0602 error code: Causes<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">The three most likely reasons for error code P0602 are a poor electrical connection, a programming error, or a faulty PCM driver. Additional potential causes include:<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Faulty, rusted, or broken CAN connections or wirings\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Faulty grounding cable or module ground strap<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Malfunctioning CAN bus<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">New or improper PCM<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Installed aftermarket (high-performance) PCM programme<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Melted PCM fuse<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Bad relay for PCM power supply<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">CAN harness with open or shorted wiring or connectors<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span data-contrast=\"auto\">P0602 error code: Diagnosis<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">Inspect the system for any loose connections or damage. Examine all wiring, connectors, and components for any damaged or loose connections.<\/span><\/p>\n<p><span data-contrast=\"auto\">You will be able to retrieve all frozen frame data and recorded error codes. This information could be relevant when determining the order in which trouble codes were logged. First, clear<\/span><span data-contrast=\"auto\">\u00a0the code, then drive the vehicle to determine if the problem persists.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">If the error code persists, use a specialist scanner to determine the cause of the code storage more rapidly. If testing is not performed properly, it can also be time-consuming and expensive for the mechanic. When testing if a vehicle&#8217;s circuits are in gear, you will get accurate results.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">In the event that a probe is misplaced, it is recommended to install a memory-saving device or risk having to reprogram the PCM and other control modules.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Using the digital volt\/ohmmeter, test the continuity and ground of the batteries for all control modules. <\/span><span data-contrast=\"auto\">Using a wiring diagram, examine the continuity between the control modules in a CAN Bus system. <\/span><span data-contrast=\"auto\">Finally, clear the code and see whether it returns.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h2><span data-contrast=\"auto\">Mistakes while diagnosing P0602<\/span><\/h2>\n<p><span data-contrast=\"auto\">Mistaking other trouble codes, such as those involving engine misfires, lean exhaust, or the fuel injector, as the cause of the error code in the vehicle is one of the most frequent errors made when diagnosing a P0602 issue code. <\/span><\/p>\n<p><span data-contrast=\"auto\">If you do not correctly diagnose the problem, it may fail, and the error code may return. By fixing the broken component and clearing the diagnostic issue codes stored in the PCM, a misdiagnosis can be prevented. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h2><span data-contrast=\"auto\">How serious is P0602?<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">In addition to affecting vehicle performance, such as acceleration, shifting, and idling, a P0602 trouble code can also influence fuel economy, hence reducing the vehicle&#8217;s efficiency.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\"> Therefore, it can be considered serious in the long run, especially if ignored for a long time.<\/span><\/p>\n<h2><span data-contrast=\"auto\">What are the fixes for the P0602 error code?<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">The precise repair steps may vary depending on the model year, manufacturer, and powertrain configuration.\u00a0 <\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Replace any broken or malfunctioning connectors, components, or wiring, and ensure that all connectors are firmly fastened.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Replacement of defective components in certain control modules<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Changing a defective PCM<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">This error code is frequently confused with codes referring to engine misfire, low exhaust, or fuel injector, resulting in incorrect diagnosis and ineffective repair.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><span data-contrast=\"auto\">In addition to the poor acceleration, shifting, and idling performance, error code P0602 can adversely influence the fuel economy of the vehicle, making it less fuel efficient.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/www.way.com\/way-plus\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-44892 size-full\" src=\"https:\/\/blog.way.com\/wp-content\/uploads\/2022\/08\/Car-expense-savings.png\" alt=\"\" width=\"794\" height=\"294\" srcset=\"http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/Car-expense-savings.png 794w, http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/Car-expense-savings-300x111.png 300w, http:\/\/wordwblog02.way.com\/wp-content\/uploads\/2022\/08\/Car-expense-savings-768x284.png 768w\" sizes=\"auto, (max-width: 794px) 100vw, 794px\" \/><\/a><\/p>\n<h2><span data-contrast=\"auto\">How much does it cost to fix P0602<\/span><\/h2>\n<p><span data-contrast=\"auto\">The cost to fix a P0602 code varies based on the kind and extent of the damage. Some professionals may charge a fixed cost ranging from $100 to $300, while others prefer invoicing based on time and materials utilized. Other elements include:<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">Some control modules might cost between $500 and $1,000.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">The average hourly wage in your location may be between $75 and $120.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<p style=\"text-align: center;\"><em>Here&#8217;s more info on <a tabindex=\"-1\" title=\"https:\/\/www.way.com\/airport-parking\" href=\"https:\/\/www.way.com\/airport-parking\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Link top-rated airport parking\">top-rated airport parking<\/a>,\u00a0<a tabindex=\"-1\" title=\"https:\/\/www.way.com\/cities\" href=\"https:\/\/www.way.com\/cities\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Link the best parking spots in your city\">the best parking spots in your city<\/a>, affordable\u00a0<a tabindex=\"-1\" title=\"https:\/\/www.way.com\/auto-insurance\" href=\"https:\/\/www.way.com\/auto-insurance\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Link auto insurance\">auto insurance<\/a>, easy\u00a0<a tabindex=\"-1\" title=\"https:\/\/www.way.com\/auto-refinance\" href=\"https:\/\/www.way.com\/auto-refinance\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Link auto refinance\">auto refinance<\/a>,\u00a0and\u00a0<a tabindex=\"-1\" title=\"https:\/\/www.way.com\/car-wash-near-me\" href=\"https:\/\/www.way.com\/car-wash-near-me\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Link high-quality car washes near you\">high-quality car washes near you<\/a>.\u00a0<\/em><\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The OBD-II code P0602 error code implies a Control Module Programming Error. This is one of the most common OBD2 error codes. Wondering how to fix this engine code? Read to know more.\u00a0 What is the P0602 error code?\u00a0 A P0602 code happens when the Engine Control Module (ECM) gets a message from the Powertrain&hellip; <a class=\"more-link\" href=\"https:\/\/dev.way.com\/journal\/p0602-error-code\/\">Continue reading <span class=\"screen-reader-text\">P0602 Error Code: Causes, Symptoms, Diagnosis, and How to Fix It<\/span><\/a><\/p>\n","protected":false},"author":49,"featured_media":44919,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1,5676],"tags":[],"class_list":["post-44891","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cars-explained","category-engine-codes","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.3 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>P0602 Error Code: Causes, Symptoms, Diagnosis, and How to Fix It &#187; Way Blog<\/title>\n<meta name=\"description\" content=\"The OBD-II code P0602 implies a Control Module Programming Error. 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