--- product_id: 205005485 title: "LS Gen 3 ECM Engine Programming Control Module Reader Diagnostic PCM Bench" brand: "tikscience" price: "366096 ₮" currency: MNT in_stock: true reviews_count: 13 category: "Tikscience" url: https://mongolia.desertcart.com/products/205005485-ls-gen-3-ecm-engine-programming-control-module-reader-diagnostic store_origin: MN region: Mongolia --- # Works with all major tuning software 12V power supply included Plug & play Gen 3 LS ECM compatibility LS Gen 3 ECM Engine Programming Control Module Reader Diagnostic PCM Bench **Brand:** tikscience **Price:** 366096 ₮ **Availability:** ✅ In Stock ## Summary > ⚡ Unlock pro-level LS tuning anywhere, anytime! ## Quick Answers - **What is this?** LS Gen 3 ECM Engine Programming Control Module Reader Diagnostic PCM Bench by tikscience - **How much does it cost?** 366096 ₮ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [mongolia.desertcart.com](https://mongolia.desertcart.com/products/205005485-ls-gen-3-ecm-engine-programming-control-module-reader-diagnostic) ## Best For - tikscience enthusiasts ## Why This Product - Trusted tikscience brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Premium Build:** High-temp nylon loom and 18-gauge TXL wiring ensure longevity beyond factory parts. - • **Cross-Software Support:** Compatible with EFI Live, HP Tuners, Tuner Cats, and any OBDII-based tuning software. - • **Advanced ECU Diagnostics:** Enables self-diagnosis, fault code reading, and ECU self-learning for optimized engine tuning. - • **Complete Plug & Play Setup:** Includes power supply and harness for instant bench-top tuning—no vehicle needed. - • **Universal Gen 3 LS ECM Compatibility:** Seamlessly programs 1999-2007 LS1, 4.8L, 5.3L, 5.7L, 6.0L ECMs with ease. ## Overview The LS Gen 3 ECM Engine Programming Control Module Reader is a premium bench-top harness designed for professional-grade tuning and diagnostics of Gen 3 LS engines (1999-2007). Featuring a robust 12V power supply, durable wiring, and universal compatibility with all major OBDII tuning software, it empowers millennial automotive pros to fine-tune ECMs outside the vehicle with plug-and-play convenience and advanced ECU self-diagnostic capabilities. ## Description GM LS1, Gen III Programming Harness Application: Allows programming of Gen III (LS1, 4.3, 4.8, 5.3, 5.7, 6.0, 8.1L) ECMs out of the vehicle.Works for all Blue/Red and Blue/Green 1999-2007 PCM/ECMs. Contains all new Delphi/Aptiv parts. OBD2 port, 18 gauge TXL automotive rated wiring. High temp nylon split loom and new 12 volt power supply. Will work with any tuning software, including but not limited to EFI Live, HP Tuners, Tuner Cats. Function: The ECU receives the working status information of each part, continuously adjusts the injection quantity and ignition timing, and protects the engine. In addition to the above-mentioned basic control functions of the engine, it also has some other important functions, such as: - Self-diagnosis function: ECU generally has fault self-diagnosis and protection functions. When the system generates a fault, it can also automatically record the fault code in RAM and adopt protective measures to read the replacement program from the above-mentioned inherent program to maintain the engine operation . At the same time, these fault messages will be displayed on the instrument panel and remain unchanged, which can enable the owner to find the problem in time - Self-learning function: Under normal circumstances will also keep recording your driving data and become the ECU learning program to provide the best control state for your driving habits. Installation: Plug and play Package Content: 1x Gen 3 LS Bench Top Harness Review: Check the wiring! - 5 stars because it does what it's intended. However, check the wiring before using. Mine was wired in reverse polarity, therefore, would not work. Furthermore, the ground pin was in the wrong spot and needed to be moved to pin one. I referred to the sloppy mechanics wiki to get the proper pin connections. Additionally, the connector to the PCM is pretty cheap and doesn't fit great. Lastly, this works just fine and does exactly what you expect it to do. I was able to read and write without upgrading the power supply though I was fully prepared and okay with doing so. UPDATE 4-16-2024, I ended up upgrading to a larger power supply as the one supplied would not work on the P59 pcm. If your on a 512 P01 pcm it should work but be ready to upgrade the power supply potentially. Review: Worked great for bench flashing my 1999 5.3 truck PCM - I bought this harness to power up and reflash the PCM from a 1999 1500 truck with a 5.3 LS engine, and it worked exactly like I needed it to. I used it as a bench harness with my laptop and tuning/programming equipment. The PCM powered up properly, connected without any issues, and I was able to complete the reflash successfully. This saved me from having to build my own temporary wiring setup or install the PCM in the vehicle just to program it. For anyone working with an early Gen 3 LS truck PCM and needing a simple way to power it on the bench for flashing, tuning, or diagnostics, this is a very handy harness. Mine worked right out of the box and did exactly what I bought it for. ## Features - Gen 3 LS ECM Programming Bench Harness Application - This bench-top harness that plugs into a standard wall outlet and allows you to connect a Gen 3 LS 4.8L, 5.3L, 6.0L computers (1999-2007) for tuning or testing via the OBDII port. Will work with any tuning software, including but not limited to EFI Live, HP Tuners, Tuner Cats. - LS LS1 Gen III Bench Harness Fitment - This works with HP Tuners, OBDII scan tools, and other programming methods that use the OBDII port for communication with the computer. The 12V adapter supplies power to both the BLUE PCM/Computer connector and the OBDII port. The 3 connections included on the harness are the 12V wall plug adapter, the OBDII port, and the BLUE side connector for the LS computer (green/red is not required for tuning). - Gen III Programming Harness Tool Function - The electronic control unit of the automobile electrical system collects part of the working status information, and the transmission line is sent to the ECU to protect the engine, etc - Premium Quality LS1 OBDII Bench Harness - This LS LS1 OBDII Bench Harness features a redesigned housing to insure it lasts longer than the factory part and includes the power supply and bolts for a complete trouble-free replacement. Each harness is tested on an ECM before shipping. - What Will You Get: One set OBDII Gen 3 Programming Bench Harness with Power Supply fits for GM Chevy LS LS1 5.3 5.7 6.0 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B087P84G95 | | Best Sellers Rank | #25,866 in Automotive ( See Top 100 in Automotive ) #163 in Code Readers & Scan Tools | | Brand | TIKSCIENCE | | Brand Name | TIKSCIENCE | | Customer Reviews | 4.2 out of 5 stars 374 Reviews | | Item Highlight | Harness w/Power Supply, Fit for GM Chevy all Blue/Red & Blue/Green 1999-2007, OBD2 Port, 18 Gauge, 12 Volt Item Highlight Harness w/Power Supply, Fit for GM Chevy all Blue/Red & Blue/Green 1999-2007, OBD2 Port, 18 Gauge, 12 Volt See more | | Manufacturer | Gen 3 Bench Top Harness | | Manufacturer Part Number | 60550 | | Model Number | Gen 3 Bench Top Programming Harness | | Operating System | Windows XP | | Power Source | Corded Electric | | UPC | 750466796695 | ## Product Details - **Brand:** TIKSCIENCE - **Operating System:** Windows XP - **Power Source:** Corded Electric - **UPC:** 750466796695 ## Images ![LS Gen 3 ECM Engine Programming Control Module Reader Diagnostic PCM Bench - Image 1](https://m.media-amazon.com/images/I/61xTQrHpzqL.jpg) ![LS Gen 3 ECM Engine Programming Control Module Reader Diagnostic PCM Bench - Image 2](https://m.media-amazon.com/images/I/71ul3i-J5gL.jpg) ![LS Gen 3 ECM Engine Programming Control Module Reader Diagnostic PCM Bench - Image 3](https://m.media-amazon.com/images/I/719EYggM+UL.jpg) ![LS Gen 3 ECM Engine Programming Control Module Reader Diagnostic PCM Bench - Image 4](https://m.media-amazon.com/images/I/71XORcAqD0L.jpg) ![LS Gen 3 ECM Engine Programming Control Module Reader Diagnostic PCM Bench - Image 5](https://m.media-amazon.com/images/I/71XjvddbgOL.jpg) ## Questions & Answers **Q: what interface and software do i need for LS tuning and programming?** A: Hp tuners **Q: Does this work for a cadillac deville 02 instead of taking it to a dealer ? Dash board is on theft and wont turn on or turn over** A: Depending on the computer output connection, but this works with GM vehicles And Chevrolet; I used to program the computer of a 2004 Silverado 5.3L Vortec Engine. Hope this explains a little about your question. **Q: Can this remove vats** A: It's for bench tuning. To tune out of the vehicle. This just connects to your PCM, you'll need HPtuners to do VATS. **Q: what interface do i need to buy to tune my ls 02' computer** A: HPtuners is the best to deal with for LS engines ## Customer Reviews ### ⭐⭐⭐⭐⭐ Check the wiring! *by C***S on April 15, 2024* 5 stars because it does what it's intended. However, check the wiring before using. Mine was wired in reverse polarity, therefore, would not work. Furthermore, the ground pin was in the wrong spot and needed to be moved to pin one. I referred to the sloppy mechanics wiki to get the proper pin connections. Additionally, the connector to the PCM is pretty cheap and doesn't fit great. Lastly, this works just fine and does exactly what you expect it to do. I was able to read and write without upgrading the power supply though I was fully prepared and okay with doing so. UPDATE 4-16-2024, I ended up upgrading to a larger power supply as the one supplied would not work on the P59 pcm. If your on a 512 P01 pcm it should work but be ready to upgrade the power supply potentially. ### ⭐⭐⭐⭐⭐ Worked great for bench flashing my 1999 5.3 truck PCM *by K***Y on October 3, 2026* I bought this harness to power up and reflash the PCM from a 1999 1500 truck with a 5.3 LS engine, and it worked exactly like I needed it to. I used it as a bench harness with my laptop and tuning/programming equipment. The PCM powered up properly, connected without any issues, and I was able to complete the reflash successfully. This saved me from having to build my own temporary wiring setup or install the PCM in the vehicle just to program it. For anyone working with an early Gen 3 LS truck PCM and needing a simple way to power it on the bench for flashing, tuning, or diagnostics, this is a very handy harness. Mine worked right out of the box and did exactly what I bought it for. ### ⭐⭐⭐⭐⭐ works great *by M***E on August 13, 2026* don't listen to all the bad reviews !, this baby worked perfect out of the box for p59 2004 silverado HP Tunners plenty of power dont know what the other guys using this plugs into wall better than a batt , god speed - ## Frequently Bought Together - LS Gen 3 ECM Engine Programming Control Module Reader Diagnostic PCM Bench Harness w/Power Supply Fits for GM Chevy All Blue/Red & Blue/Green 1999-2007, OBD2 Port, 18 Gauge, 12 Volt - HP Tuners PROLINK+ Cable with Analog and CAN Bus inputs for External Sensors Using MPVI2+ and MPVI3 OBD2 Scan Tools, Cable Only - HP MPVI3 Pro Diagnostic Code Scanner and Tool | 0 Credits | M03-000-00 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://mongolia.desertcart.com/products/205005485-ls-gen-3-ecm-engine-programming-control-module-reader-diagnostic](https://mongolia.desertcart.com/products/205005485-ls-gen-3-ecm-engine-programming-control-module-reader-diagnostic) --- *Product available on Desertcart Mongolia* *Store origin: MN* *Last updated: 2026-10-14*