SERVICE MANUAL
  Applies to: Hyundai Coupe/Tiburon 1998-2000
GROUP
Fuel System MFI Control System
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HARNESS INSPECTION PROCEDURE 
MFI CONTROL RELAY INSPECTION
  1. Check continuity of relay contacts between terminal 4 (+) and 2 (-).

    Relay coil (between terminal 5 & 1)
    Continuity
    When de-energized
    No. (infinite O)
    When energized
    Yes (0 O)
    Relay coil (between terminal 5 & 3)
    Continuity
    When de-energized
    No. (infinite O)
    When energized
    Yes (0 O)
  1. If faulty, replace the MFI control relay.

    TORQUE SPECIFICATION
    MFI control relay 7-11 Nm ( 7-110 kg·cm, 5.2-8.1 lb·ft )
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MFI CONTROL RELAY 

When the ignition switch is on, battery power is supplied to the ECM, the injector, the mass air flow sensor, etc. When the ignition switch is turned on, current flows from the ignition switch through the current relay coil to ground.

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CIRCUIT DIAGRAM