Scantools for OBDII vehicles
The BR-3 OBD-II Scan Tool supports VPW, PWM, and ISO protocols
The BR-CAN OBD-II Scan Tool supports CAN vehicles only
Description:
An interface between your personal or laptop computer and your vehicle's OBDII diagnostic bus. The hardware and software comprise a system which will read most standard OBDII data, as well as diagnostic trouble codes (DTC). Provides useful data for monitoring real time data, troubleshooting, and repair purposes.
The BR-3 interface supports three OBDII protocols commonly used in US vehicles: VPW (General Motors), PWM (Ford), and ISO9141 (Chrysler, Asian, and European), and ISO 14230 protocol (also called Keyword 2000 or KWP 2000). It does not support CAN protocol.
The BR-CAN interface supports CAN protocols only. Capable of both 11 bit and 29 bit ID fields, speeds of 500 k or 250 k bits per second (kbps), all automatically selected.
If your vehicle is earlier than 2004, it probably does NOT use CAN. Between 2004 and 2007, some vehicles may use CAN, depending on manufacturer, model, year and drivetrain. All 2008 or later cars use the CAN system.
If you are not sure, you should check to see if your vehicle(s) are listed as CAN models:
CAN Vehicle List
Features:
- Monitors general Obd-2 data: Fuel system (open/closed loop status), Engine load, Coolant temperature, Manifold Pressure, Engine Rpm, Vehicle speed, Timing advance, Intake air temperature, Intake air flow rate, Throttle position, Secondary air status.
- Multiple display modes; Digital, graph, or gauge style displays.
- Selectable units; Metric or English (U.S)
- Oxygen sensor Voltage / Current and Fuel trim plots. Works with conventional or wideband sensor types.
- On-board test results (also called Obd2 readiness); Indicates whether each test category or subsystem test has been completed (passed). Often used as a criterion in emission testing.
- On board tests (detailed report); Numeric values of individual test IDs that the vehicle has performed with test limits.
- Freeze frame; Standard data stored by the vehicle at the instant it set a diagnostic trouble code (DTC).
- Diagnostic trouble code reader; Displays "P" codes, including manufacturer specific codes reported under mode 3.
- Automatic or manual code definition lookup (all standard Obd II codes and most manufacterer specific dtc).
- Ability to enter any arbitrary code for lookup purposes.
- Ability to periodically poll for active trouble codes and malfunction indicator lamp status while simultaneously monitoring other types of data.
- Pending trouble codes: These are similar to normal trouble codes, but they are set after a single driving cycle, and usually before the check engine light is illuminated. Useful after repair work has been finished.
- Clear function; Requests vehicle to clear its diagnostic trouble codes, on board test results, and freeze frame data.
- DataLogger; Optionally records and reads back most raw data on disk drive.
- Timetag option to periodically insert computer time into data stream.
- Place Markers can be inserted into file to facilitate locating the same position later.
- Playback functions: Sequential (single step or continuous), Jump to record numbers or place markers, rewind.
- Printout; Option to send most data to the default system printer.
- Mileage monitor; Computes miles per gallon (instantaneous and averaged) as well as cumulative fuel used and distance travelled. Currently calibrated for gasoline engines only.
- Simulate mode; Runs without interface attached. Useful to explore and become familiar with the program.
Software for PCs:
These programs run on a PC and communicate with the interface. They will run on most computers which have a serial port. (Some PCs only have USB ports, but you may be able to use a USB/serial convertor cable) The programs can also run in a "simulated" mode even if there is no serial port, interface, or vehicle attached. This allows you to examine the program or learn how it works. The programs are free, and they are full versions, not Demos; they will work with BR interfaces.
Description, Downloads, Screenshots :
Software for Microsoft Windows
Version 4.1
Legacy Software for older MsDos computers
This program has very limited features. We recommend using the Windows software above if your computer has Win 95 or later operating system.
Ordering Information
Complete and ready to use interfaces and components
How to Order
Technical Information
Electronic hardware
View BR-3 Schematic Diagram
Download BR-3 Schematic and Data (pdf, 103 kb)
Software Information
Programer's data for BR-3 interfaces
Questions & Contact
If you have a question, the FAQ may have a quick answer.
Please Email your question if it isn't covered in the faq.
