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Home >> Kia >> 2021 >> Forte GT, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (4 Of 6) >> DTC P0420-00: Catalyst System Efficiency Below Threshold (Bank 1) >> System Inspection >> O2 Sensor Inspection
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O2 Sensor Inspection

Inspection Condition (+) Probe (-) Probe Reference
Connector Terminal Connector Terminal
  1. Engine "ON".
HO2S (Bank1, Sensor2) connector 1 (signal) HO2S (Bank1, Sensor2) connector 2 (ground) Fig.1
G13302615Courtesy of KIA MOTORS AMERICA, INC.

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