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Home >> Kia >> 2022 >> Sorento Plug-In Hybrid SX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (PHEV) (8 Of 10) >> DTC P2237-00: O2 Sensor Pumping Current Circuit-Open (Bank 1 Sensor 1) >> Wiring Inspection >> Circuit Inspection
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit Inspection

G14960847Courtesy of KIA MOTORS AMERICA, INC.
Inspection Condition (+) Probe (-) Probe Specification
Connector Terminal Connector Terminal
 
  1. Ignition "OFF".
  2. Disconnect the electrical connector(s) from the concerned component.
  3. Ignition "ON".
HO2S (Bank1, Sensor1) connector 1 (voltage Nernst) Chassis ground - Approx. 0.7V
HO2S (Bank1, Sensor1) connector 3 (virtual ground) Chassis ground - Approx. 0V
HO2S (Bank1, Sensor1) connector 4 (current adjust) Chassis ground - Approx. 0V
HO2S (Bank1, Sensor1) connector 6 (current pump) Chassis ground - Approx. 0V
 
  1. Ignition "OFF".
  2. Disconnect the electrical connector(s) from the concerned component.
HO2S (Bank1, Sensor1) connector 1 (voltage Nernst) Chassis ground - ∞ (infinity)Ω
HO2S (Bank1, Sensor1) connector 3 (virtual ground) Chassis ground - ∞ (infinity)Ω
HO2S (Bank1, Sensor1) connector 4 (current adjust) Chassis ground - ∞ (infinity)Ω
HO2S (Bank1, Sensor1) connector 6 (current pump) Chassis ground - ∞ (infinity)Ω
HO2S (Bank1, Sensor1) connector 1 (voltage Nernst) ECM connector 64 (voltage Nernst) Approx. below 1Ω
HO2S (Bank1, Sensor1) connector 3 (virtual ground) ECM connector 67 (virtual ground) Approx. below 1Ω
HO2S (Bank1, Sensor1) connector 4 (current adjust) ECM connector 65 (current adjust) Approx. below 1Ω
HO2S (Bank1, Sensor1) connector 6 (current pump) ECM connector 66 (current pump) Approx. below 1Ω

Good 

No Good