POWER STEERING SYSTEM SYSTEM DIAGRAM

A004RQME02
Communication Table

Transmitting ECU

(Transmitter)

 Receiving ECU Signal Communication Method
ECM Power steering ECU

  • Engine variation information signal

  • Transaxle information signal

  • Gear information signal

  • Drive train information signal

  • Engine speed signal

  • TC terminal condition

 CAN
Skid control ECU Power steering ECU

  • Vehicle speed (SP1) status signal

  • Vehicle speed (SP1) signal

  • Each wheel speed sensor signal

  • Each wheel speed sensor error signal

  • Each wheel sensor power supply decline status signal

  • VSC controlling signal

  • ABS controlling signal

  • STP switch signal

  • Test mode signal

  • Brake control identification signal

  • Yaw rate 1 zero point signal

  • GL1 zero point value signal

  • Yaw G sensor installation information signal

  • Yaw rate zero point error signal

  • Driving wheel slip signal

  • VDM controlling signal

  • TRC operating signal

  • Vehicle state quantity signal

  • Target additional torque signal

  • Target steering angle, target additional torque validity signal

 CAN
Steering angle sensor Power steering ECU

  • Data continuity (valid/invalid) signal

  • +B open circuit signal

  • Sensor malfunction signal

  • Steering angle signal

  • Zero point memory (in steering angle sensor) valid/invalid signal

  • Zero point (in steering angle sensor) signal

 CAN
Yaw rate sensor Power steering ECU

  • Yaw rate sensor signal

  • Yaw rate sensor 1 (valid/invalid) signal

  • Sensor power supply voltage (IG) (valid/invalid) signal

  • Yaw rate sensor 1 error signal

  • GL1 (GX) and GL2 (GY) sensor signal

  • GL1 (GX) and GL2 (GY) sensor (valid/invalid) signal

  • GL1 (GX) and GL2 (GY) sensor error signal

  • Data output response (non-request/request) signal

  • Sensor type identification signal

  • YG sensor CPU monitor signal

  • Yaw difference value signal

 CAN
Combination meter Power steering ECU Transmitting system diagnosis No. signal CAN
Engine stop and start ECU Power steering ECU Stop and start control mode signal CAN
Power steering ECU ECM EPS idle up request signal CAN
Power steering ECU Air conditioning amplifier Loading control level signal CAN
Power steering ECU Combination meter

  • EPS warning light on request signal

  • EPS diagnosis code signal

  • Transmitting system diagnosis No. signal

 CAN