{"product_id":"tikscience-ls-gen-iii-ecm-bench-harness-blue-delphi-connector-12v-power-obd2-for-1999-2007-ls-ecms","title":"TIKSCIENCE LS Gen III ECM Bench Harness — Blue Delphi Connector, 12V Power \u0026 OBD2 for 1999–2007 LS ECMs","description":"\u003cp\u003e\u003cstrong\u003eThe TIKSCIENCE LS Gen 3 ECM Bench Harness is a plug-and-play programming and testing rig that powers and communicates with 1999–2007 GM Gen III (LS1\/4.3\/4.8\/5.3\/5.7\/6.0\/8.1L) ECMs via OBD2 for bench tuning, diagnostics, and flashing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you remove an ECM\/PCM from a vehicle for tuning, repair, or bench testing, you need a reliable way to supply 12 volts and provide OBD2 communications without the car. This harness package includes a new Delphi\/Aptiv BLUE connector, a full-size OBDII port, an automotive-grade 12V power supply, and robust 18‑gauge TXL wiring in high-temp nylon split loom so you can program or read the module safely using popular tuning tools.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this harness let me program an LS Gen III ECM off the vehicle?\u003c\/h3\u003e\n\u003cp\u003eThe harness provides the correct pin-to-pin connections, fused 12V power, and an OBD2 interface so the ECM thinks it is installed in a car. It supports the Blue\/Red and Blue\/Green Gen III PCMs produced between 1999 and 2007 and works with standard OBDII tuning workflows.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSupplies regulated 12V to the BLUE PCM connector and OBDII port\u003c\/li\u003e\n  \u003cli\u003eIncludes OBDII port compatible with EFI Live, HP Tuners, Tuner Cats, and other software\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play setup with tested ECM compatibility\u003c\/li\u003e\n  \u003cli\u003eAll-new Delphi\/Aptiv components and 18 AWG TXL wiring for durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it work with my tuning software and which PCMs are supported?\u003c\/h3\u003e\n\u003cp\u003eThis bench harness is software-agnostic and communicates through the OBDII protocol, so it works with most commercial tuning suites that expect a standard OBD2 connection. It supports Gen III LS family modules (LS1, 4.3, 4.8, 5.3, 5.7, 6.0, 8.1 liters) produced between 1999–2007, including blue\/red and blue\/green style PCMs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with EFI Live, HP Tuners, Tuner Cats, and common OBDII tools\u003c\/li\u003e\n  \u003cli\u003eWorks with both blue\/red and blue\/green Gen III PCM variants\u003c\/li\u003e\n  \u003cli\u003eDesigned for 1999–2007 LS family ECM\/PCMs\u003c\/li\u003e\n  \u003cli\u003eIncludes power, OBDII, and BLUE connector for full bench communication\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat safety and durability features are built into this bench harness?\u003c\/h3\u003e\n\u003cp\u003eThe harness uses automotive-rated materials and a new 12V power supply to minimize risk when powering an ECM outside the vehicle. The assembly is protected with high-temperature nylon split loom and tested on an ECM prior to shipping to ensure reliability during programming and diagnostics.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-temp nylon split loom protects wiring from heat and abrasion\u003c\/li\u003e\n  \u003cli\u003e18 gauge TXL wiring matches automotive standards for power and signal\u003c\/li\u003e\n  \u003cli\u003eAll-new Delphi\/Aptiv connectors resist wear and intermittent contact\u003c\/li\u003e\n  \u003cli\u003ePre-shipped ECM tests verify harness functionality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This bench harness is aimed at professional tuners, performance shops, and experienced DIY enthusiasts who remove Gen III LS ECMs for flashing, calibration, or detailed diagnostics. If you routinely bench-program PCMs, validate custom tunes, or need a safe, repeatable way to communicate with LS1\/Gen III computers outside a vehicle, the TIKSCIENCE harness supplies the wiring, power, and OBD2 interface required to integrate with mainstream tuning software and shop workflows.\u003c\/p\u003e\n\n\u003cp\u003ePackage contents include one Gen 3 LS bench-top harness with the BLUE side connector for the LS computer, a full-size OBDII port, and a 12V wall power adapter. Installation is plug-and-play—connect the harness to the PCM, plug in the power supply, and connect your tuning laptop or scan tool to the OBDII port to begin programming or reading data.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this harness with EFI Live or HP Tuners?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The harness provides a standard OBDII interface compatible with EFI Live, HP Tuners, and most tuning software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which ECMs does this bench harness support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It supports Gen III LS family ECMs (1999–2007) including LS1, 4.3, 4.8, 5.3, 5.7, 6.0, and 8.1L PCMs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TIKSCIENCE","offers":[{"title":"Default Title","offer_id":55168349372759,"sku":"B087P84G95","price":53.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/tikscience-ls-gen3-front-view.jpg?v=1790401291","url":"https:\/\/britishgarage.co.uk\/products\/tikscience-ls-gen-iii-ecm-bench-harness-blue-delphi-connector-12v-power-obd2-for-1999-2007-ls-ecms","provider":"British Garage","version":"1.0","type":"link"}