{"id":22941,"date":"2025-06-16T07:38:11","date_gmt":"2025-06-16T07:38:11","guid":{"rendered":"https:\/\/www.obd2tool.com\/blog\/?p=22941"},"modified":"2025-06-19T07:49:09","modified_gmt":"2025-06-19T07:49:09","slug":"how-to-fix-jcb-excavator-p0615-13-starter-relay-open-circuit-fault","status":"publish","type":"post","link":"https:\/\/www.obd2tool.com\/blog\/how-to-fix-jcb-excavator-p0615-13-starter-relay-open-circuit-fault\/","title":{"rendered":"How to Fix JCB Excavator P0615-13 Starter Relay Open Circuit Fault"},"content":{"rendered":"<p>This guide provides step-by-step instructions for diagnosing and resolving the P0615-13 fault code related to a starter relay open circuit in JCB excavators.<\/p>\n<div>\n<h3>Related Contents:<\/h3>\n<p><a href=\"https:\/\/www.obd2tool.com\/blog\/jcb-servicemaster-4-free-download-for-win-7win-8win-10\/\">2025\u2002JCB ServiceMaster 4 v25.1.0\u2002Free Download for Win 10 Win11<\/a><br \/>\n<a href=\"https:\/\/www.obd2tool.com\/goods-10442-JCB-Service-Parts-Pro-JCB-Parts-Catalog.html\">2017 JCB Parts Plus+ and Repair Service Manual Free Download<\/a><br \/>\n<a href=\"https:\/\/www.obd2tool.com\/goods-10761-JCB-Heavy-Duty-Truck-Diagnostic-Tool.html\">JCB Diagnostic tool<\/a><\/p>\n<\/div>\n<h3>Possible Causes:<\/h3>\n<ol start=\"1\" data-spread=\"false\">\n<li>Faulty starter relay<\/li>\n<li>Starter relay not properly connected to the machine<\/li>\n<li>Damaged or faulty wire harness<\/li>\n<li>Terminal backed out from the starter relay base<\/li>\n<li>Terminal backed out from the MECU (Machine Electronic Control Unit) wire harness connector<\/li>\n<\/ol>\n<div><\/div>\n<h3>Diagnostic Steps:<\/h3>\n<ol start=\"1\" data-spread=\"true\">\n<li><strong>Measure Starter Relay Coil Resistance<\/strong>\n<ul data-spread=\"false\">\n<li>Use a multimeter to check the resistance of the starter relay coil.<\/li>\n<li>The resistance should be approximately <strong>220 ohms<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Verify Starter Relay Connection<\/strong>\n<ul data-spread=\"false\">\n<li>Ensure the starter relay is securely connected to the relay box. Refer to the image below for reference.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-22943\" src=\"https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-1.jpg\" alt=\"\" width=\"814\" height=\"295\" srcset=\"https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-1.jpg 814w, https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-1-300x109.jpg 300w, https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-1-768x278.jpg 768w\" sizes=\"(max-width: 814px) 100vw, 814px\" \/><\/li>\n<\/ul>\n<\/li>\n<li><strong>Inspect MECU Connector Wiring<\/strong>\n<ul data-spread=\"false\">\n<li>Check the connectivity between <strong>wire no. 8065<\/strong> and <strong>wire no. 8067<\/strong> at the MECU wire harness connector.<\/li>\n<li>Look for terminal back-out or disconnection. Refer to the image below for guidance.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-22944\" src=\"https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-2.jpg\" alt=\"\" width=\"985\" height=\"195\" srcset=\"https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-2.jpg 985w, https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-2-300x59.jpg 300w, https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-2-900x178.jpg 900w, https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-2-768x152.jpg 768w\" sizes=\"(max-width: 985px) 100vw, 985px\" \/><\/li>\n<\/ul>\n<\/li>\n<li><strong>Inspect Relay Base Wiring<\/strong>\n<ul data-spread=\"false\">\n<li>Check the continuity between <strong>wire no. 8065<\/strong> and <strong>wire no. 8067<\/strong> at the starter relay base (Relay Box).<\/li>\n<li>Verify if terminals have backed out. See the photograph for clarification.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-22945\" src=\"https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-3.jpg\" alt=\"\" width=\"757\" height=\"231\" srcset=\"https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-3.jpg 757w, https:\/\/www.obd2tool.com\/blog\/wp-content\/uploads\/2025\/06\/How-to-Solve-JCB-Excavator-P0615-13-Starter-Relay-Open-Circuit-Error-3-300x92.jpg 300w\" sizes=\"(max-width: 757px) 100vw, 757px\" \/><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<div><\/div>\n<h3>Corrective Actions:<\/h3>\n<ol start=\"1\" data-spread=\"true\">\n<li><strong>Replace the Starter Relay<\/strong>\n<ul data-spread=\"false\">\n<li>If the relay is faulty, install a new one with the correct specifications.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Repair or Replace the Wire Harness<\/strong>\n<ul data-spread=\"false\">\n<li>If there\u2019s an open circuit or terminal back-out in the wire harness, repair the damaged section or replace the entire harness as needed.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>Following these steps should resolve the P0615-13 fault code and restore normal starting operation for your JCB excavator.<\/p>\n<p>More topics for JCB machine,please refer to:<a href=\"https:\/\/www.obd2tool.com\/blog\/category\/jcb-machine-trouble-repair\/\">JCB Machine Trouble Repair<\/a>.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>This guide provides step-by-step instructions for diagnosing and resolving the P0615-13 fault code related to a starter relay open circuit<!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":1,"featured_media":22943,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2959],"tags":[2651,2960],"views":1570,"_links":{"self":[{"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/posts\/22941"}],"collection":[{"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/comments?post=22941"}],"version-history":[{"count":1,"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/posts\/22941\/revisions"}],"predecessor-version":[{"id":22946,"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/posts\/22941\/revisions\/22946"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/media\/22943"}],"wp:attachment":[{"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/media?parent=22941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/categories?post=22941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.obd2tool.com\/blog\/wp-json\/wp\/v2\/tags?post=22941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}