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Home >> Hyundai >> 2016 >> Genesis 3.8, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 3.8L (1 Of 3) >> DTC P0123: Throttle Position Sensor 1 Signal Circuit - High Input >> Component Inspection

Component Inspection

■ Check TPS Resistance 

  1. IG "OFF". Disconnect ETC Motor & TPS connector.
  2. Measure resistance between TPS power and TPS ground terminals of ETC Motor & TPS connector (component side).

    Specification:  1.6 ~ 2.4kΩ

  3. Is the measured resistance within specification?

    YES 

    • Substitute with a known - good ECM (PCM) and check for proper operation. If the problem is corrected, replace ECM (PCM) and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Substitute with a known - good ECT motor & TPS and check for proper operation. If the problem is corrected, replace ECT motor & TPS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

* Procedure of ETS Initialization

  1. Erase the trouble codes in ECM (PCM)
  2. Turn the Ignition Key "OFF" until the main relay turns "OFF". (It will take about 10 sec.).
  3. Turn Ignition Key "ON" for more than 1 second to record the throttle motor position in the EEPROM.
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