Signal Circuit Inspection

WARNING: This page is about a different variant/trim than selected.

■ Check Short to Battery in Harness

Ignition OFF
Disconnect safety plug from the main battery (Wait for more than 5 minutes after disconnecting).
Disconnect Generator (HSG) Temperature Sensor and MCU main harness connector.
Ignition ON
Measure voltage between Signal terminal of Generator (HSG) Temperature Sensor harness connector and chassis ground.
Specification: 0V

Fig 1: Measuring Voltage Between Generator (HSG) Temperature Sensor Harness Connector And Chassis Ground
Courtesy of HYUNDAI MOTOR AMERICA
Is the measured voltage 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

Ignition OFF
Disconnect safety plug from the main battery (Wait for more than 5 minutes after disconnecting).
Disconnect Generator (HSG) Temperature Sensor and MCU main harness connector.
Measure resistance between Signal (+) terminal of Generator Temperature Sensor harness connector and Signal (+) terminal of MCU harness connector.
Specification: Below 1Ω

Fig 2: Measuring Resistance Between Generator Temperature Sensor Harness Connector And MCU Harness Connector
Courtesy of HYUNDAI MOTOR AMERICA
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.