MAIN RELAY CONTROL OPERATION [ZY]

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• When the ignition switch is turned to the ON position, the main relay turns on and power is supplied to sensors and devices.

• When the ignition switch is turned from on to off, a main relay on command signal is received the main relay turns on and the following actions take place:

1. Throttle valve control: Fully closed throttle learning function (See DRIVE-BY-WIRE CONTROL OPERATION [ZY].)

• When the on request signal from the controls stop, the main relay turns off.