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2. Electronic control unit - Wikipedia

   en.wikipedia.org/wiki/Electronic_control_unit

   An ECU from a Geo Storm. An electronic control unit (ECU), also known as an electronic control module (ECM), is an embedded system in automotive electronics that controls one or more of the electrical systems or subsystems in a car or other motor vehicle.

3. OBD-II PIDs - Wikipedia

   en.wikipedia.org/wiki/OBD-II_PIDs

   VIN Message Count in PID 02. Only for ISO 9141-2, ISO 14230-4 and SAE J1850. Usually the value will be 5. 02: 17 Vehicle Identification Number (VIN) 17-char VIN, ASCII-encoded and left-padded with null chars (0x00) if needed to. 03: 1 Calibration ID message count for PID 04. Only for ISO 9141-2, ISO 14230-4 and SAE J1850.

4. Engine control unit - Wikipedia

   en.wikipedia.org/wiki/Engine_control_unit

   An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine. Systems commonly controlled by an ECU include the fuel injection and ignition systems.

5. 10 Best Free VIN Check Sites To Use Before Buying a Car - AOL

   www.aol.com/finance/10-best-free-vin-check...

   10 Best Free VIN Check Sites. Here is a quick look at ten of the best free VIN check sites. National Insurance Crime Bureau . iSeeCars. CARFAX. Vehicle History. VINFreeCheck. AutoCheck. EpicVIN ...

6. What is a Vehicle Identification Number (VIN)? - AOL

   www.aol.com/finance/vehicle-identification...

   A VIN — or vehicle identification number — is a 17-figure sequence of numbers and letters exclusive to your vehicle. It’s used by entities like the Department of Motor Vehicles, your auto ...

7. On-board diagnostics - Wikipedia

   en.wikipedia.org/wiki/On-board_diagnostics

   VIN (Vehicle Identification Number): Vehicle ID CALID (Calibration Identification): ID for the software installed on the ECU CVN (Calibration Verification Number): Number used to verify the integrity of the vehicle software.