{"id":534811,"date":"2026-07-17T17:59:59","date_gmt":"2026-07-17T21:59:59","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=534811"},"modified":"2026-07-17T17:59:59","modified_gmt":"2026-07-17T21:59:59","slug":"2013-scion-iq-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2013-scion-iq-pcm-replacement-guide\/","title":{"rendered":"2013 Scion iQ Powertrain and Engine Control Module Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2013 Scion iQ Powertrain and Engine Control Module Guide<\/h1>\n<p class=\"hero-subtitle\">In the 2013 Scion iQ, the powertrain and engine control modules manage fuel delivery, ignition timing, and transmission shifting. A malfunction can disrupt engine operation, trigger diagnostic codes, and prevent the vehicle from starting or running smoothly.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>Module failure often triggers a P0606 code and loss of powertrain control.<\/li>\n<li>Factory removal requires 1.5\u202fhours for each module and a short relearn step.<\/li>\n<li>Access is gained by removing the washer jar and the first air\u2011cleaner inlet.<\/li>\n<li>Flagship One units arrive VIN\u2011programmed, eliminating post\u2011install coding.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>When a 2013 Scion iQ exhibits erratic performance, the powertrain and engine control modules are common culprits. This guide explains what those computers do, where they sit, and how a replacement is performed. You will learn the typical labor effort, the steps needed to reach the modules, and why a VIN\u2011programmed unit from Flagship One can simplify the rebuild process.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2013 Scion iQ<\/h2>\n<p>The powertrain control module and engine control module in a 2013 Scion iQ coordinate engine speed, fuel injection, and transmission engagement. They translate sensor data into precise actuator commands, ensuring smooth acceleration and efficient fuel use. A fault can cause no\u2011start conditions, rough idle, or loss of gear changes. Understanding their role helps you see why a failure often leads to diagnostic trouble codes. The vehicle relies on <a href=\"https:\/\/www.fs1inc.com\/toyota-ecm-pcm-ecu-engine-computer\/scion-ecm-pcm-ecu-engine-computer\/iq-engine-computers.html\">replacement engine modules for 2013 iQ<\/a> to restore full functionality after a malfunction.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>The modules sit beside the air\u2011cleaner assembly, reachable after the factory removal steps. Technicians first detach the windshield washer jar assembly, then remove the No.\u202f1 air cleaner inlet to expose the control unit. Replacing the powertrain control module typically requires 1.5\u202fhours of labor, followed by a 0.5\u2011hour relearn procedure. The engine control module uses the same access path and also calls for 1.5\u202fhours plus a 0.5\u2011hour relearn step. No torque specifications are listed, so standard fastener tightening applies.<\/p>\n<figure style=\"margin:22px auto;text-align:center;max-width:720px\"><img decoding=\"async\" style=\"max-width:100%;height:auto;border:1px solid #e2e6ec;border-radius:8px\" src=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2013-scion-iq-ecm-location-card.webp\" alt=\"2013 Scion iQ PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">Typical PCM mounting area on the 2013 Scion iQ (reference).<\/figcaption><\/figure>\n<div style=\"background:#f7f9fc;border:1px solid #e2e8f2;border-radius:10px;padding:18px 24px;margin:18px 0\">\n<h3 style='margin-top:0'>How to Reach the PCM on the 2013 Scion iQ<\/h3>\n<ol style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> windshield washer jar assembly.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Pull<\/b> up the lever to loosen the lock and disconnect the 2 connectors from the ECM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the 5 bolts and the ECM from the fan shroud.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> ecu bracket.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the 2 screws and the ECU bracket from the ECM.<\/li>\n<\/ol>\n<p style='margin:10px 0 0 0'><em>Work with the ignition off, and treat the module as static-sensitive: avoid touching the connector pins at any point.<\/em><\/p>\n<\/div>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Operation<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Configuration<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Book Time<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">1.5 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain Control Module Relearn<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.5 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module Relearn<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.5 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">1.5 hr<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After installing a new module, the factory service routine calls for a powertrain control module relearn and an engine control module relearn, each taking half an hour. Flagship One units arrive as <a href=\"https:\/\/www.fs1inc.com\/2013-scion-iq-1-3l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\">a VIN-programmed replacement unit<\/a> so those programming steps are already completed, allowing you to skip the post\u2011install coding.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>Owners of a 2013 Scion iQ may notice the engine refusing to start, frequent stalling, or a loss of transmission shifting when the modules fail. Diagnostic scans often reveal the internal fault code <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\">internal error<\/a> which points directly to a control\u2011module issue. Communication with scan tools may be absent, and the check\u2011engine light will illuminate, prompting further investigation.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2013 Scion iQ<\/h2>\n<p>The following internal trouble codes have been documented for the 2013 Scion iQ&#8217;s control modules.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Code<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Meaning<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Full Guide<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0606<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module processor failure<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#0563C1\"><b><u>Full P0606 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 2013 Scion iQ<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Maintain a healthy charging system to avoid voltage drops.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect and clean ground connections regularly.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Protect the vehicle from jump\u2011start voltage spikes.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address diagnostic codes promptly before they worsen.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure connector seals stay intact to prevent moisture ingress.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>What does a P0606 code indicate for my 2013 Scion iQ?<\/h3>\n<p>The P0606 code signals an internal malfunction within the powertrain control module. It often results in loss of engine control and may require module replacement.<\/p>\n<h3>How long does it take to replace the engine control module on a 2013 Scion iQ?<\/h3>\n<p>Factory labor time lists 1.5\u202fhours for removal and installation, plus an additional 0.5\u202fhour for the relearn procedure.<\/p>\n<h3>Can I use a refurbished module instead of a new one for my 2013 Scion iQ?<\/h3>\n<p>Refurbished units can be a cost\u2011effective option, but they must be VIN\u2011programmed to match your vehicle\u2019s specifications.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>When the powertrain or engine control module fails in a 2013 Scion iQ, you can choose a direct repair or install a refurbished replacement. Both approaches address the root cause, but a VIN\u2011programmed unit eliminates the need for post\u2011install coding, saving time and reducing complexity.<\/p>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2013-scion-iq-1-3l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2013 Scion iQ<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/toyota-ecm-pcm-ecu-engine-computer\/scion-ecm-pcm-ecu-engine-computer\/iq-engine-computers.html\">Scion iQ module lineup<\/a> covers other engine configurations as well.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Final Thoughts<\/h2>\n<p>If your 2013 Scion iQ is showing control\u2011module symptoms, consider a replacement that matches the vehicle\u2019s specifications. A properly installed unit restores performance and helps keep the iQ reliable for years ahead.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>If your 2013 Scion iQ shows no\u2011start or stalling, beware of PCM\/ECM failure; proper repair restores performance and drivability.<\/p>\n","protected":false},"author":1,"featured_media":522487,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,462],"tags":[307,1576,463],"class_list":["post-534811","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-scion","tag-307","tag-iq","tag-scion"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2013 Scion iQ Powertrain and Engine Control Module Guide - Flagship One Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fs1inc.com\/blog\/2013-scion-iq-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2013 Scion iQ Powertrain and Engine Control Module Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"If your 2013 Scion iQ shows no\u2011start or stalling, beware of PCM\/ECM failure; 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