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: Measure Voltage Between Terminal 1 Of The Injector Harness Connector And 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. Turn ignition switch to OFF position and disconnect ECM connector.
2. Turn ignition switch to ON position.
3. Measure voltage between terminal 2 of the injector harness connector and chassis ground.

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

Courtesy of HYUNDAI MOTOR CO.

• Specification: below 0.5V 

Is voltage within specification? 

Yes: Go to next

No: Repair short to power in harness.

1. Turn ignition switch to OFF position and keep the injector and ECM connectors disconnected.
2. Measure resistance between terminal 2 of the injector harness connector and 62 of the ECM harness connector C83.

Fig 4: Measuring Resistance Between Terminal 2 Of Injector Harness Connector & 62 Of ECM Harness Connector C83

Courtesy of HYUNDAI MOTOR CO.

• Specification: below 1ohm 

Does resistance indicate continuity? 

Yes: Proceed with ECM PROBLEM PROCEDURE  .

No: Repair open in harness.