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System Diagram [11/2013 - ]

Fig 1: Power Steering System Diagram
GTY310190Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
COMMUNICATION TABLE

Sender Receiver Signal Communication Line
Skid Control ECU Power Steering ECU ABS controlling signal (FL wheel) CAN
ABS controlling signal (FR wheel) CAN
ABS controlling signal (RL wheel) CAN
ABS controlling signal (RR wheel) CAN
VSC operation prohibited signal CAN
Yaw rate deviation signal CAN
TRC controlling signal (FL wheel) CAN
TRC controlling signal (FR wheel) CAN
Estimated brake hydraulic pressure difference (between FR and FL wheels) signal CAN
Steering Angle Sensor Power Steering ECU Data continuity (valid/invalid) signal CAN
+B open circuit signal CAN
Sensor malfunction signal CAN
Steering angle abnormal signal CAN
Zero point memory (in sensor) valid/invalid signal CAN
Zero point (stored in steering angle sensor) signal CAN
Power Steering ECU ECM PS idle up request signal CAN
Power Steering ECU Combination Meter Assembly EPS warning light and buzzer signal CAN
ECM Power Steering ECU Engine speed signal CAN