LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hyundai >> 2015 >> Equus Signature >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0123: Throttle Position Sensor 1 Signal Circuit High Input >> Wiring Inspection >> Signal Circuit Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Signal Circuit Inspection

  1. IG "OFF".
  2. Disconnect ETC Motor & TPS connector.
  3. IG "ON" & ENG "OFF".
  4. Measure the voltage between TPS1 signal terminal of ETC Motor & TPS harness connector and chassis ground.

    Specification:  Approx. 0V

  5. Is the measured voltage within specification?

    YES 

    NO