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Home >> Kia >> 2021 >> Forte FE, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 2.0L (6 Of 6) >> DTC P2251-00: O2 Sensor Reference Ground Circuit/Open - Bank 1 Sensor 1 >> Component Inspection
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Component Inspection

Inspection Condition (+) Probe (-) Probe Reference
Connector Terminal Connector Terminal
  1. Ignition "ON", engine "ON". (Warm up condition)
HO2S (B1/S1) harness connector 1 (Nernst Voltage) HO2S (B1/S1) harness connector 6 (Pumping Current) Fig.1
HO2S (B1/S1) harness connector 3 (Virtual ground) HO2S (B1/S1) harness connector 4 (Trim Resistor)
G13299284Courtesy of KIA MOTORS AMERICA, INC.

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