General

General

When the ignition is switched on, the interface ECU receives a power feed from the main relay and initialises the MFL serial link to the ECM. The ECM is in the normal fuelling mode and outputs the cruise control inactive message on the CAN bus. The interface ECU ignores inputs from the steering wheel switches.

When the master switch is pressed, the LED in the master switch illuminates and a second power feed is connected to the interface ECU to enable the system.