Inspection Procedures

1. Connect a Hi-Scan (Pro) to the data link connector.
2. Start the engine.
3. Using the Hi-Scan (Pro), monitor the signal waveform of the injector.

   Is the signal waveform normal? 

No: Go to next

Yes: Problem is intermittent or was repaired and engine control module memory was not cleared. Proceed with INTERMITTENT PROBLEM PROCEDURE  .

1. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

   Are all connectors good? 

Yes: Go to next

No: Repair or replace it.

1. Turn ignition switch to OFF position and disconnect injector connector.
2. Measure resistance between terminals 1 and 2 of the injector connector.

Fig 1: Measuring Resistance Between Terminals 1 & 2 Of Injector Connector

Courtesy of HYUNDAI MOTOR CO.

• 13.8~15.2ohm at 20°C (68°F) 

Is resistance within specification? 

Yes: Go to next

No: Replace injector.

1. Turn ignition switch to ON position and measure voltage between terminal 1 of the injector harness connector and chassis ground.

Fig 2: Measuring Voltage Between Terminal 1 Of Injector Harness Connector & Chassis Ground

Courtesy of HYUNDAI MOTOR CO.

• Specification: approximately B+ 

Is voltage within specification? 

Yes: Go to next

No: Repair open or short to chassis ground in harness.

1. Disconnect the ECM connector.
2. Measure resistance between terminal 2 of the injector harness connector and chassis ground.

Fig 3: Measuring Resistance Between Terminal 2 Of Injector Harness Connector & Chassis Ground

Courtesy of HYUNDAI MOTOR CO.

Is resistance open loop? 

Yes: Proceed with ECM PROBLEM PROCEDURE  .

No: Repair short to chassis ground in harness.