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Home >> Kia >> 2021 >> Niro Plug-In Hybrid LXS >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Diagnosis (PHEV) (5 Of 6) >> DTC P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1) >> Component Inspection
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Component Inspection

Inspection Condition (+) Probe (-) Probe Reference
Connector Terminal Connector Terminal
  1. Engine "ON" (warm up condition).
HO2S (bank1, sensor1) connector 3 (pumping line) HO2S (bank1, sensor1) connector 2 (nernst voltage) Fig.1
HO2S (bank1, sensor1) connector 1 (virtual ground) HO2S (bank1, sensor1) connector 6 (trim resistor)
G13355363Courtesy of KIA MOTORS AMERICA, INC.

Good 

No Good