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⚡ Unlock your LS engine’s full potential—tune smarter, not harder!
The LS Gen 3 ECM Programming Control Module Reader Bench Harness is a 12V wall-powered diagnostic and tuning tool designed for GM Chevy LS engines (1999-2007). It connects via OBDII port and supports all major tuning software, enabling professional-grade ECM programming and testing outside the vehicle with reliable power and precise pinout compatibility.
| ASIN | B087P84G95 |
| Best Sellers Rank | #53,717 in Automotive ( See Top 100 in Automotive ) #260 in Automotive OBD-II Engine System Diagnostic Tools |
| Brand Name | TIKSCIENCE |
| Customer Reviews | 3.9 3.9 out of 5 stars (311) |
| Manufacturer | Gen 3 Bench Top Harness |
| Operating System | Windows XP |
| Power Source | Corded Electric |
| UPC | 750466796695 |
R**N
MARCH 2026!! Purchased for my 2003 suburban. I was getting a "Controller Unlocker: Timed Out" error while trying to tune the truck with HP Tuners. I removed my PCM and used this harness to try and get my laptop to communicate with the PCM and it worked perfect. Other reviews talk about wrong pinout and the power supply not working. Mine was pinned correctly and the power supply that is provided worked flawlessly as well. If you are having issues with HP Tuners try this. You probably have some interference in your wiring harness causing it not to work. 10/10 would recommend this harness!
R**L
Muy practico!
J**N
I was a bit hesitant after reading a few negative reviews, but the unit I received works perfectly. I checked for the issues others mentioned—Pines in wrong order, and bare connections—and mine had none of those problems. Build quality seems solid, and it's doing exactly what it’s supposed to. Glad I took the chance on this one.
A**R
Had to completely re-wire. Came with power supply positive and ground reversed as well as ground pin in incorrect location. Very poor quality product.
C**S
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.
Trustpilot
1 month ago
1 month ago