Connecting the B&B OBDII Streamer
Connecting the B&B OBDII streamer involves a few simple steps:
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Hardware Connections: The AutoTap scanner has clearly marked “Vehicle” and “Computer” ends. Connect the OBD II cable to the “Vehicle” side of the scanner and the serial cable to the “Computer” side.
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Laptop Connection: Plug the other end of the serial cable into your laptop’s DB9 serial port. AutoTap offers USB adapters for laptops without a serial port, as well as serial extension cables for added flexibility.
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Vehicle Connection: Finally, connect the OBD II cable to the vehicle’s Data Link Connector (DLC). The red LED on the AutoTap hardware should illuminate, confirming power from the vehicle.
Understanding the AutoTap Software Interface
The AutoTap for Windows software provides a user-friendly interface for interpreting vehicle data. We’ll explore its functionality through a three-part diagnostic process.
Part 1: Retrieving Diagnostic Trouble Codes (DTCs)
The first step is to retrieve stored DTCs, which indicate the cause of the “Check Engine” light. After connecting the hardware and launching the software, click “Connect to a Vehicle.”
Potential connection issues, like conflicts with other serial port devices (e.g., Palm HotSync Manager), can be resolved by closing the conflicting application.
Once connected, the software displays the vehicle’s VIN, connection status, MIL (Malfunction Indicator Lamp) status, and any stored DTCs. In our example, a high Intake Air Temperature (IAT) sensor circuit was identified, indicating a potential open circuit. The software allows you to view DTC charts for detailed explanations.
Part 2: Advanced DTC Options
The “Advanced” function within the DTC window provides additional options. You can enable or disable DTC checking and MIL status monitoring, and even set the interval for these checks. This allows for continuous monitoring and automatic updates.
Part 3: Diagnosing the Problem
In our example, the high IAT code led to a visual inspection under the hood. A disconnected IAC (Idle Air Control) sensor was found. This exemplifies the B&B OBDII streamer’s ability to quickly pinpoint problems, even those as simple as a loose connection.
Conclusion
The B&B OBDII streamer, combined with intuitive software, offers a comprehensive and user-friendly solution for vehicle diagnostics. By providing real-time data and trouble codes, it empowers users to efficiently troubleshoot and resolve vehicle issues, from simple loose connections to more complex problems. This guide demonstrates the power and simplicity of using a B&B OBDII streamer for accurate and efficient car maintenance.
