Gen2/Main Bike Board/Limitations

From Unofficial Zero Manual
Jump to navigation Jump to search

The board design is very modest and seems to prioritize light weight and simplicity over robustness.

Take as much care as possible when troubleshooting in and around this module.
A professional-grade application of dielectric grease around the connectors seems advisable.
  • NOTE: Ensure that the entire connector and pins are clean and dry before applying.
Performance and Lockup
The board communicates with the bike's other systems via CAN Bus, which is a 2-wire Multi-master bus.
  • This means that multiple nodes on the bus must initiate a transfer.
The board also has limited memory, I/O dispatching, and computational performance.
  • So, it can get clogged with requests for data outside its designed parameters.
  • So, running any telemetry while in drive mode through the OBD-II serial console or using the Bluetooth transmitter will meaningfully increase the load on the board.
    In some cases prevent it from acting on rider inputs, including safety interlocks like the cutout switch or kickstand interlocks.
Reportedly, 2017 and newer models have increased performance and doubled memory capacity.
  • This enables an onboard upgrade with an atomic swap of versions by holding new and old firmware versions simultaneously.
  • There's no known means of using these in older models.
Electrical Vulnerability
The circuits connected to the pins seem to lack significant protection against shorting faults, which could be a source of breakages while dealing with connected systems.
OBD-II Serial Output
The use of the non-standard OBD-II port most easily draws power from a very limited internal circuit.
The OBD-II port as a result is typically not usable over a long cable without an external power supply and good quality connections.