Component Inspection

■ Check fuel pump relay 

1. IG "OFF". Remove Fuel Pump Relay.
2. Measure resistance between battery power supply and power supply to fuel pump motor terminals of fuel pump relay. (Measurement "A")
3. Measure resistance between battery power supply and fuel pump relay control terminals of fuel pump relay. (Measurement "B")

   Specification: 

   Terminal	Continuity
   Battery power supply - Power supply to Fuel pump motor	NO
   Battery power supply - Fuel pump relay control	Yes (Approx. 70Ω ~ 120Ω)

   Fig 1: Measuring Resistance Between Battery Power Supply And Power Supply To Fuel Pump Motor Terminals Of Fuel Pump Relay (Measurement A)

   Courtesy of HYUNDAI MOTOR AMERICA
4. Is the measured resistance within specification?

   YES 

   • Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair " procedure.

   NO 

   • Substitute with a known - good Fuel Pump Relay and check for proper operation. If the problem is corrected, replace Fuel Pump Relay and go to "Verification of Vehicle Repair " procedure.