In order to simplify this process we have broken down your options (Bluetooth, Wifi or USB) in the following table which describes their compatibilities.
J1850 PWM - The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.The ELM327 can be paired with a number of different devices including Laptop Computers, iPhones, iPad, Samsung Galaxy Smartphones and Tablets, Android Smartphones and Tablets as well as OSX computers.įor the best experience we recommend pairing a Bluetooth ELM with a Samsung Galaxy Smartphone or Samsung Galaxy Tab that has the Torque App installed. ISO 9141–2 - The connector should have metallic contacts in pins 4, 5, 7, 15, and 16. J1850 VPW - The connector should have metallic contacts in pins 2, 4, 5, and 16, but not 10. On 1996 and later vehicles, you can tell which protocol is used by examining the OBDII connector: There are some variations among captive imports such as the Cadillac Catera, a German Opel derivative, which uses the European ISO 9141 protocol. Fords use SAE J1850 PWM (Pulse Width Modulation) communication patterns. Chrysler products and all European and most Asian imports use ISO 9141 circuitry. What Communications Protocol does my vehicle use?Īs a rule of thumb, GM cars and light trucks use SAE J1850 VPW (Variable Pulse Width Modulation). Naturally, each felt they had the one true way, so we have three different OBDII communications protocols in use. While the parameters, or readings, required by OBDII regulations are uniform, the auto manufacturers had some latitude in the communications protocol they used to transmit those readings to scanners.
Where is the connector located? The connector must be located within three feet of the driver and must not require any tools to be revealed.
ScanTest for Pocket PC by Ivan Ganev aka a-serĪll cars and light trucks built and sold in the United States after Januwere required to be OBDII equipped.pyOBD by Donour Sizemore for MacOSX and Linux.OBD-II ScanMaster by Wladimir Gurskij (ScanMaster 3.52 – local copy).OBD Gauge for PalmOS and Pocket PC by Dana Peters.
Since our scanner is a portable device, the buyer can connect the scan tool to the vehicle and in a few seconds determine if the vehicle has detected a problem. Used vehicles can have all sorts of expensive mechanical or electrical problems. This OBDII Scan Tool turns off the Check Engine light.Īnother highly useful application for the scan tool is purchasing used vehicles. In areas that require a smog test, an illuminated Check Engine light fails the emission test, even if the repaired vehicle might otherwise pass inspection. Once the vehicle is repaired, the Diagnostic Trouble Code(s) can be erased and the Check Engine light turned off using this scan tool. Even if you don't repair your vehicle yourself, knowing the Diagnostic Trouble Code number before taking the vehicle in for repair is good knowledge to have.