Maxima V6-2960cc 3.0L SOHC MFI (VG30E) (1990)
ECCS (Engine Management) Relay: Description and Operation
Engine Management (ECCS-EFI) Relay
The ECCS/EFI relay, located in the relay box in the engine compartment, supplies voltage to the ECU. When the ignition key is in the ON or START
position, battery voltage is supplied to the relay. This closes the relay allowing battery voltage to to supplied to the ECU.