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COMMUNICATION ZC600339 ETACS-ECU Heater control panel SRS-ECU ECM Combination meter A/C-ECU : Interactive communication CAN communication SERIAL communication 0000 A/C-ECU performs the signal transmission and transmits and receives signals via serial communication. NOTE: : For details of CAN communication, refer to GROUP 54D - Controller Area Network P.54D-2. CAN COMMUNICATION INPUT SIGNALS TABLE Signal Transmitter ECU Engine coolant temperature signal ECM Vehicle speed signal ETACS-ECU Wiper signal COMBINATION METER DIAGNOSTIC FUNCTION A/C-ECU has the following functions for easier system ⦆ Diagnostic function ⦆ Service data output ⦆ Actuator test NOTE: For each item, refer to the Service Manual. HEATER, AIR CONDITIONING AND VENTILATION 55-9 DUCT |