Review on VSTM 3Meter OBD II Vehicle ECU Emergency Power Supply Cable Memory Saver with Alligator Clamps and 12V Car Battery Cigarette Lighter Power Extension Socket by Elmito Yeager

This VSTM OBD II Memory Saver Cable has a cigarette lighter plug on one end that plugs into another vehicle's battery or power port. The other end is an OBD-II male connector that plugs into an OBD-II socket on the vehicle, usually under the dash. The OBD-II system uses 16 pins in the receiver, with each pin assigned to a specific function via the vehicle's ECU (a very expensive component). Pin #16 is for the 12V power supply to the system. This is the pin where the 12 volt power supply should be connected. But the VSTM wire routes 12 volts to pin #9, which is known as the Monitor Select designation and is used by various companies to perform various tasks through the car's ECU. I explain this statement in the hope that the manufacturer of the product will read it. On three of my private vehicles, applying 12 volts to pin #9 will damage the ECU at great cost. I was warned to test the VSTM cable before connecting it to my machine which is why I found an issue with this product. I contacted the company who responded promptly and said they would send me another cable. The second cable arrived and upon testing found that it also conducts power to pin #9. I hate to think what would happen to one of my machines if I connected the VSTM cable as shown in the instructions . The VSTM cable looks well built, but either there is a serious quality control issue in the manufacturing process or the designers of this product have no idea what they are dealing with. Anyway, as an experienced car technician, I now have two scrap parts that don't fit in my tool box. Be careful with this product! Update: July 8, 2019 I have already stated that this company responded to my complaint in a timely manner. They sent me another cable but that was defective too. When I informed them about this they gave me a full refund for the product. It is a pity that the product they sell is of poor quality because when all is said and done the company has done a great job of meeting customer needs.