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Home >> Kia >> 2009 >> Rio Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (1 Of 2) >> DTC P0121 Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance >> Terminal And Connector Inspection >> TPS Circuit Inspection
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TPS Circuit Inspection

  1. Key "OFF".
  2. Disconnect TPS connector.
  3. Key "ON".
  4. Measure the voltage between terminal 1, 2, 3 of TPS harness connector and chassis ground.

    Specification:

    Terminal 1 Approx. 5V

    Terminal 2 Approx. 5V

    Terminal 3 Approx. 0V

  5. Is the measured voltage within specifications?

    YES 

    NO