LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) (PHEV) >> DTC P0122-00: Throttle Pedal Position Sensor Switch 'A' Circuit Low Input >> Wiring Inspection >> Signal Circuit Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Signal Circuit Inspection

  1. Ignition "OFF".
  2. Refer to ETC (ELECTRONIC THROTTLE CONTROL) SYSTEM and disconnect Throttle Body connector.
  3. Ignition "ON"
  4. Measure voltage between Pin No. 6 (TPS1 Signal) terminal of Throttle Body harness connector and chassis ground.

    Specification:  Approx. 4V

  5. Ignition "OFF"
  6. Disconnect Battery (-) terminal.
  7. Refer to ETC (ELECTRONIC THROTTLE CONTROL) SYSTEM and disconnect Throttle Body connector.
  8. Measure resistance between Pin No. 6 (TPS1 Signal) terminal of Throttle Body harness connector and chassis ground.

    Specification:  ∞ (infinite)Ω

  9. Is the measured value within specification?

    YES 

    NO 

scientia non olet · About LEMON Manuals