Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminal condition. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?

   YES 

   • Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO 

   • Go to Next procedure.

■ Check Short to Battery in Harness 

1. Ignition OFF
2. Disconnect safety plug from the main battery (Wait for more than 5 minutes after disconnecting).
3. Disconnect Drive Motor Position Sensor and MCU main harness connector.
4. Ignition ON
5. Measure voltage between Signal terminal of Drive Motor Position Sensor harness connector and chassis ground.

   Specification:  0V.

   Fig 1: Measuring Voltage Between Drive Motor Position Sensor Harness Connector And Chassis Ground

   Courtesy of HYUNDAI MOTOR AMERICA
6. Is the measured resistance within specifications?

   YES 

   • Go to Next procedure.

   NO 

   • Check for short to battery in harness.
   • Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Check for Open in Harness 

1. Ignition OFF
2. Disconnect safety plug from the main battery (Wait for more than 5 minutes after disconnecting).
3. Disconnect Generator (HSG) Position Sensor and MCU main harness connector.
4. Measure resistance between Signal terminal of Generator (HSG) Position Sensor harness connector and Signal terminal of MCU harness connector.

   Specification:  below 1

   Fig 2: Measuring Resistance Between Generator Position Sensor Harness Connector And MCU Harness Connector

   Courtesy of HYUNDAI MOTOR AMERICA
5. Is the measured resistance within specifications?

   YES 

   • Go to Next procedure.

   NO 

   • Check for open in harness.
   • Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Check for Short Between REZ + and REZ? Each Other. 

1. Ignition "OFF"
2. Disconnect safety plug from the main battery (Wait for more than 5 minutes after disconnecting).
3. Disconnect Generator (HSG) Position Sensor and MCU main harness connector.
4. Measure resistance between REZ + Signal terminal of MCU harness connector and REZ? Signal terminal of MCU harness connector.

   Specification:  below 1

   Fig 3: Measuring Resistance Between REZ (+) And REZ (-) Terminal Of MCU Harness Connector

   Courtesy of HYUNDAI MOTOR AMERICA
5. Is the measured resistance within specifications?

   YES 

   • Go to Next procedure.

   NO 

   • Check for Short between REZ + and REZ? each other.
   • Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.