Signal Circuit Inspection

■ Check voltage
1. IG "OFF" and disconnect ETC Motor & TPS connector.
2. IG "ON".
3. Measure voltage between TPS1 signal terminal of ETC Motor & TPS harness connector and chassis ground.
  Specification: Approx. 5V
  
  Fig 1: Measuring Voltage Between TPS1 Signal Terminal Of ETC Motor & TPS Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
4. Is the measured voltage within specification?
  YES
  - Go to " CHECK OPEN IN HARNESS" as follows.
  NO
  - Go to " CHECK SHORT TO BATTERY IN HARNESS" as follows.
■ Check open in harness
1. IG "OFF" and disconnect ETC Motor & TPS connector and PCM connector.
2. Measure resistance between TPS1 signal terminal of ETC Motor & TPS harness connector and TPS1 signal terminal of PCM harness connector.
  Specification: Below 1Ω
  
  Fig 2: Measuring Resistance Between TPS1 Signal Terminal Of ETC Motor & TPS Harness Connector And TPS1 Signal Terminal Of PCM Harness Connector
  Courtesy of HYUNDAI MOTOR AMERICA
3. Is the measured resistance within specification?
  YES
  - Go to "GROUND CIRCUIT INSPECTION " procedure.
  NO
  - Repair open in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
■ Check short to battery in harness
1. IG "OFF" and disconnect ETC Motor & TPS connector and PCM connector.
2. Measure resistance between TPS1 signal and TPS power terminals of ETC Motor & TPS harness connector. (Measurement "A")
3. Measure resistance between TPS1 signal and ETC motor (+) terminals of ETC Motor & TPS harness connector. (Measurement "B")
4. Measure resistance between TPS1 signal and ETC motor (-) terminals of ETC Motor & TPS harness connector. (Measurement "B")
  Specification: Infinite
  
  Fig 3: Measuring Resistance Between TPS1 Signal And TPS Power Terminals Of ETC Motor & TPS Harness Connector (Measurement A)
  Courtesy of HYUNDAI MOTOR AMERICA
  
  Fig 4: Measuring Resistance Between TPS1 Signal And ETC Motor (+) Terminals Of ETC Motor & TPS Harness Connector (Measurement B)
  Courtesy of HYUNDAI MOTOR AMERICA
5. Is the measured resistance within specification?
  YES
  - Go to "GROUND CIRCUIT INSPECTION " procedure.
  NO
  - Repair short to battery in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.