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Home >> Hyundai >> 2004 >> XG350 L >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> MULTIPORT Fuel Injection (MFI) >> Other Control Functions

Other Control Functions

  1. Fuel Pump Control:

    Turns the fuel pump relay ON so that current is supplied to the fuel pump while the engine is cranking or running.

  2. A/C Compressor Clutch Relay Control:

    Turns the compressor clutch of the A/C ON and OFF.

  3. Fan Relay Control:

    The radiator fan and condenser fan speeds are controlled in response to the engine coolant temperature and vehicle speed.

  4. Evaporative Emission Purge Control. Refer to EMISSIONS CONTROL .