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Home >> Kia >> 2017 >> Niro FE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 6) >> DTC P0121-00: Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Perform >> Wiring Inspection >> Circuit Inspection
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Circuit Inspection

Fig 1: ECM System Circuit
G12325187Courtesy of KIA MOTORS AMERICA, INC.
INSPECTION PART - TPS (THROTTLE POSITION SENSOR) INSPECTION

Inspection Condition (+) Probe (-) Probe Specification
Connector Terminal Connector Terminal
  1. Ignition "OFF".
  2. Disconnect the battery (-) cable.
  3. Disconnect the electrical connector(s) from the component and ECM.
TPS connector 4 (TPS 1) Chassis ground - ∞ (infinite)Ω
TPS connector 5 (TPS 2) Chassis ground - ∞ (infinite)Ω
  1. Disconnect the electrical connector(s) from the concerned component.
  2. Ignition "ON".
TPS connector 1 (ground) Chassis ground - Approx. 0V
TPS connector 2 (power) Chassis ground - Approx. 5V
TPS connector 3 (ETC +) Chassis ground - Approx. 1.8V
TPS connector 4 (TPS 1) Chassis ground - Approx. 4.8V
TPS connector 5 (TPS 2) Chassis ground - Approx. 0V
TPS connector 6 (ETC -) Chassis ground - Approx. 0.08V
Good 
No Good