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 Drive Motor temperature sensor and MCU main harness connector.
Ignition "ON"
Measure voltage between Signal terminal of Motor Temperature Sensor harness connector and chassis ground.
Specification: 0V

Fig 1: Measuring Voltage Between Motor 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 Drive Motor Temperature Sensor and MCU main harness connector.
Measure resistance between Signal (+) terminal of Drive Motor temperature sensor harness connector and Signal (+) terminal of MCU harness connector.
Specification: Below 1Ω

Fig 2: Measuring Resistance Between Drive Motor 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.