Hyundai GENESIS COUPE BK 2010 Manual page 921

3. Measure voltage between power terminal of injector harness connector and chassis ground.
Specification : Approx. B+
4. Is the measured voltage within specification ?
▶ Go to "Control Circuit Inspection" procedure.
▶ Check open or connection of the fuse connected to injector power supply.
▶ Repair open or short to ground in harness, and go to "Verification of Vehicle Repair' procedure.
Control Circuit Inspection
■ Check short to ground in harness
1. IG "OFF" and disconnect injector connector and ECM connector.
2. Measure resistance between injector control terminal of injector harness connector and chassis ground.
Specification : Infinite
3. Is the measured resistance within specification ?
▶ Go to "Check open in harness" as follows.
▶ Repair short to ground in harness, and go to "Verification of Vehicle Repair" procedure.
■ Check open in harness
1. IG "OFF" and disconnect injector connector and ECM connector.
2. Measure resistance between injector control terminal of injector harness connector and injector control terminal of
ECM harness connector.
Specification : Below 1Ω
3. Is the measured resistance within specification ?
▶ Go to "Component Inspection" procedure.
▶ Repair open in harness, and go to "Verification of Vehicle Repair" procedure.
Component Inspection
■ Check injector
1. IG "OFF" and disconnect injector connector.
2. Measure resistance between power and control terminals of injector connector.(Component side)
Specification : 11.4 ~ 12.6Ω ( at 20°C/ 68°F)
3. Is the measured resistance within specification ?
▶ Substitute with a known - good ECM and check for proper operation. If the problem is
corrected,
replace ECM and go to "Verification of Vehicle Repair" procedure.