CAN Bus database

CAN bus mappings by OEM ECU and aftermarket device

BMW E46

Installation instructions

  • Baud Rate: 500K
BMW E46 (including M3)
Channel Units CAN Id Offset (bytes) Length (bytes) Conversion Notes
TPS % 809 6 1 (A / 255)
EngineTemp C 809 2 1 (A * 0.75) - 48.373 Convert to Farenheight: (temperatureC * 1.8) + 32
OilTemp C 1349 5 1 A - 48.373 Convert to Farenheight: (temperatureC * 1.8) + 32
RPM 790 3-4 1 ((byte4*256)+byte3)/6.4