The 2022+ Subaru BRZ and Toyota GR86 lack CAN bus access through the standard OBD2 port, limiting data acquisition for track use. Utilizing the older OBD2 protocol results in slow data transfer speeds and omits crucial telemetry inputs found within the CAN data stream. A CAN bus harness adapter solves this issue.
This harness taps into the CAN network via a module located behind the glovebox on the passenger side. It introduces a secondary OBD2 connector specifically for datalogging purposes, positioned conveniently within the glovebox. This dedicated connection enables high-speed access to essential vehicle telemetry, including engine RPM, speed, steering angle, brake pressure, throttle position, and coolant temperature.
Harnessing this wealth of data provides invaluable insights to optimize on-track performance. Installation is straightforward and doesn’t interfere with other vehicle systems. The glovebox installation utilizes an existing OEM screw and includes a self-tapping screw for secure and discreet mounting. Importantly, this harness connector exclusively supports CAN bus communication. For standard OBD2 functions like retrieving and clearing diagnostic trouble codes, continue using the factory port located beneath the steering column.
Compatibility with devices like the OBXLink MX+, RaceCapture, and similar CAN-enabled data acquisition tools is recommended for optimal performance.
When selecting a harness, consider engine sound preferences. The “ASC Bypass (Active)” option retains the Active Sound Control (engine sound generator), while the “ASC Delete” option eliminates it, often at a lower cost. Note that the OBXLink MX+ depicted in accompanying images is not included with the harness.
A demonstration video showcasing the RaceChrono app paired with an OBXLink MX+ and a Racebox Mini provides a practical application example.
A detailed installation guide for the 2022+ Subaru BRZ/Toyota GR86 CAN Bus Harness is available for reference. This guide provides step-by-step instructions for a seamless installation process.
