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Home >> Lexus >> 2011 >> GX 460 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Dynamic Radar Cruise Control System (Diagnostics - Introduction) >> Dynamic Radar Cruise Control System >> System Diagram >> System Diagram
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System Diagram

Fig 1: Identifying Dynamic Radar Cruise Control System Diagram
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COMMUNICATION TABLE

Sender Receiver Signal Line
Spiral with Sensor Cable Sub-assembly Driving Support ECU
  • Steering angle sensor signal
  • Steering angle sensor malfunction signal
  • Steering angle sensor zero point signal
CAN
Yaw Rate Sensor Driving Support ECU
  • Yaw rate sensor signal
  • Yaw rate sensor voltage signal
CAN
Skid Control ECU Driving Support ECU
  • Brake component malfunction signal
  • Warning buzzer malfunction signal
  • Wheel speed signal
  • Speed sensor power drop signal
  • Speed sensor condition signal
  • Yaw rate sensor signal
  • Yaw rate sensor zero point error signal
CAN
ECM Driving Support ECU
  • Cruise control switch signal
  • Automatic transmission signal
  • Cruise control operation signal
  • Current vehicle speed signal
  • Brake control operation signal
CAN
Main Body ECU (Multiplex Network Body ECU) Driving Support ECU Country specification information signal CAN
ECM Combination Meter Assembly
  • Vehicle-to-vehicle distance control signal
  • Millimeter wave radar sensor grime signal
  • Bad weather detection signal
  • Approach warning signal
  • Preceding vehicle detection signal
  • Millimeter wave radar sensor beam axis deviation signal
  • Dynamic radar cruise warning signal
  • Cruise control indicator light signal
  • Cruise control SET indicator light signal
  • Cruise control set speed signal
  • Constant speed cruise signal
  • Dynamic radar cruise control diagnostic signal
CAN
Driving Support ECU ECM
  • Distance control switch signal
  • Millimeter wave radar sensor assembly beam axis deviation signal
  • Millimeter wave radar sensor assembly malfunction signal
  • Communication error signal (from driving support ECU to millimeter wave radar sensor assembly)
  • Communication error signal (from ECM to driving support ECU)
  • Communication error signal (from skid control ECU to driving support ECU)
  • Yaw rate communication error signal
  • Steering angle sensor communication error signal
  • Dynamic radar cruise designation response signal
  • Vehicle-to-vehicle distance control signal
  • Brake control demand signal
  • Throttle fully closed demand signal
  • Approach warning signal
  • Cruise target deceleration gradient signal
  • Vehicle-to-vehicle distance control acceleration signal
CAN
ECM Skid Control ECU
  • Cruise target deceleration gradient signal
  • Cruise target deceleration signal
  • Throttle fully closed demand signal
  • Brake control demand signal
  • Cruise control operation signal
  • Approach warning signal (skid control buzzer demand signal)
CAN
Skid Control ECU ECM
  • Brake component malfunction signal
  • Brake control malfunction signal
  • Cruise control cancel signal
  • Communication logic error signal
  • Brake demand response signal
  • Brake control operation signal
CAN
Millimeter Wave Radar Sensor Assembly Driving Support ECU
  • Forward vehicle detection signal
  • Relative speed
  • Cruise control diagnosis signal
CAN
Four Wheel Drive Control ECU ECM Cruise control cancel signal CAN
Driving Support Switch Control ECU ECM Multi-terrain select mode information signal CAN