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Home >> Honda >> 2021 >> CR-V EX-L, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> VSA System - Testing & Troubleshooting (Except Hybrid) >> Description & Operation >> VSA System Description - System Diagram

VSA System Description - System Diagram

The system diagram of the VSA system is shown below.

For locations of each component on vehicle, refer to Component Location Index:

GHH431722Courtesy of HONDA, U.S.A., INC.

F-CAN Communication Data 

VSA System Receiving Signal 

Transmitting Unit Signal Name
PCM
  • VSA control enable/disable signal
  • Accelerator pedal position signal
  • Engine speed signal
  • Engine torque signal
  • Vehicle speed signal
  • Brake pedal position switch signal
  • Starting assist brake function activation request *1
  • Service check signal
  • System failure Information
TCM *2
  • Vehicle speed signal
  • Shift position signal
Gauge control module
  • VSA OFF switch signal
  • Brake fluid level switch signal
  • Automatic brake hold switch signal
SRS unit
  • Yaw rate signal
  • Lateral acceleration signal
  • Longitudinal acceleration signal
  • Driver's seat belt buckle switch status
EPS control unit
  • Steering angle signal
Electric brake booster
  • System operating state signal
  • System failure Information
  • Brake pedal stroke sensor state signal
Millimeter wave radar *3
  • Deceleration request signal
  • System operating state signal
  • System failure Information

*1: With auto idle stop system

*2: L15BE engine

*3: With ACC

VSA System Transmitting Signal 

Transmitting Unit Signal Name
VSA modulator-control unit
  • Engine torque control request signal
  • Shift control request signal
  • Wheel speed signals
  • Master cylinder pressure signal
  • Indicator drive signal
  • Buzzer request signal
  • Automatic brake hold request signal
  • Target brake pressure signal *1
  • System operating state signal
  • System failure Information

*1: With ACC