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CAN Communication System Transmitting and Receiving Data Table

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
CAN COMMUNICATION SYSTEM TRANSMITTING AND RECEIVING DATA TABLE

  ECM TCM BCM Combination meter ESP® control module ABS control module 4WD control module Steering angle sensor SDM Yaw rate/G sensor keyless start control module
Engine Torque Signal T R - - R - - - - - -
Accelerator position signal T R - - R - R - - - -
Engine speed signal T R R R R - R - - - -
Throttle position signal T R - - - - - - - - -
Immobilizer indicator light control signal T - - R - - - - - - -
MIL control signal T - - R - - - - - - -
Engine coolant temperature signal T R R R - - - - - - -
Cruise control signal T R - - - - - - - - -
CRUISE/SET indicator light control signal T - - R - - - - - - -
CRUISE/SET indicator light lighting signal R - - T - - - - - - -
Vehicle speed signal* T - R R - - - - - - R
Fuel Consumption signal T - - R - - - - - - -
Brake light switch signal T R - - - - R - - - -
A/C compressor clutch signal T R R - - - - - - - -
A/C refrigerant pressure signal T - R - - - - - - - -
Torque reduction request signal R T - - - - - - - - -
Transmission malfunction signal - T - R - - - - - - -
Transmission shift position signal R T R R - - R - - - -
Transmission actual gear position signal - T - - R - R - - - -
Manual mode Indication request signal (for information display) - T - R - - - - - - -
Buzzer request signal - T T R - - - - - - -
Buzzer request signal - - R - - - - - - - T
Manual mode gear position signal (for information display) R T - R - - - - - - -
DRL indicator light control signal - - T R - - - - - - -
Brake fluid level switch signal - - T R - - - - - - -
Charging system signal - - T R - - - - - - -
Oil pressure switch signal - - T R - - - - - - -
Parking brake switch signal - - T R - - - - - - -
A/C ON signal R - T - - - - - - - -
Low tire pressure warning light control signal - - T R - - - - - - -
Electric load signal R - T R - - - - - - -
Driver seat belt switch signal (reminder light request) - - T R - - - - - - -
Trunk lid switch status (1) - - T - - - - - - - R
Door switch status - - T R - - - - - - R
Door lock status - - T - - - - - - - R
Outside air temperature signal - - T R - - - - - - -
BCM DTC - - T R - - - - - - -
Torque down request signal R - - - T - - - - - -
4WD clutch control request signal - - - - T - R - - - -
Wheel speed signal * (Front Right, Front Left, Rear Right, Rear Left) R R - - T T R - - - -
ESP® active signal R - - R T - R - - - -
ESP® Off light signal - - - R T - - - - - -
ABS active signal R R - - T T R - - - -
ESP® warning light control signal - - - R T - - - - - -
ABS warning light control signal - - - R T T - - - - -
Brake warning light control signal (EBD) - - - R T T - - - - -
4WD coupling control engagement percent - - - - R - T - - - -
4WD mode status R - - - - - T - - - -
4WD mode indicator control signal - - - R - - T - - - -
Steering angle signal - - - - R - - T - - -
Driver seatbelt switch signal - - R - - - - - T - -
Passenger seatbelt switch signal - - R - - - - - T - -
Passenger occupant signal - - R - - - - - T - -
Vehicle yaw rate signal - - - - R - - - - T -
Vehicle lateral G signal - - - - R - - - - T -
Key indicator light control signal - - - R - - - - - - T
Ignition knob switch signal - - R - - - - - - - T
Door lock/unlock request signal - - R - - - - - - - T
Panic alarm request signal - - R - - - - - - - T
Trunk lid opener request signal (1) - - R - - - - - - - T
Answer back request signal - - R - - - - - - - T
(1) Sedan model only
NOTE:
  • T (Transmitting): When two or more control modules start transmission at the same time, control module transmitting the highest priority information gets transmission right and all other control modules enter reception mode.
  • R (Receiving): All control modules connected with CAN communication lines receive all information CAN communication line. Each control module selects only what is necessary and use it for its control function.
  • *: ECM, using wheel speed signal transmitted from ABS/ESP® control module, calculates and determines vehicle speed and transmit that information to each control module.
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