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DRIVING AIDS DESCRIPTION AND OPERATION 86-8-7 Inputs and Outputs The ECU receives inputs from the following: l Reverse lamp circuit – for system activation when reverse gear is selected l PDC switch – for activation and de-activation of the system l Ignition switch – power supply for system operation. The ECU outputs to the following: l Sensors – power and ground connections l Sensor – digital signal transmit and receive signals l Sounder – signal for sounder operation l PDC Switch – power supply for switch LED operation. Diagnostics If a PDC system fault has occurred, the sounder will emit a continuous tone for 3 seconds and the PDC switch LED |