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Home >> Hyundai >> 2006 >> Santa Fe Limited, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3.5L) (1 Of 2) >> DTC Troubleshooting >> DTC P0121 Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance >> Monitor Scan Tool Data

Monitor Scan Tool Data

  1. Install Scan Tool and monitor the "TPS 2 (Sub) or TP Sensor (ECM)" parameter on scan tool.

    Test Condition: Ignition "ON" & Engine "OFF"

    MONITOR SCAN TOOL DATA

    TPS Voltage
    Fully Closed 4.2 ~ 4.8V
    Fully Open 0.3 ~ 1.0V
    TPS signal should decrease smoothly as throttle is opened.
    Fig 1: Scan Tool Display - TPS 2 (SUB) OR TP SENSOR (ECM)
    G04931711Courtesy of HYUNDAI MOTOR CO.
  2. Is TPS signal within specifications?

    YES:  

    • Fault is intermittent caused by poor contact in the sensor' s and/or PCM' s connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO:  

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