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Home >> Kia >> 2021 >> Rio LX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (6 Of 6) >> DTC P2271-00: O2 Sensor Stuck Rich - Bank 1 Sensor 2 >> Wiring Inspection >> Circuit Inspection
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit Inspection

G13709344Courtesy of KIA MOTORS AMERICA, INC.
G13709345Courtesy of KIA MOTORS AMERICA, INC.
G13709346Courtesy of KIA MOTORS AMERICA, INC.
G13709347Courtesy 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 (B1/S2) connector 1 (signal) Chassis ground - Approx. 2.3V
HO2S (B1/S2) connector 2 (ground) Chassis ground - Approx. 0.6V
  1. Ignition "OFF".
  2. Disconnect the electrical connector (s) from the concerned component.
HO2S (B1/S2) connector 1 (signal) PCM connector 39 (signal) Approx. below 1Ω
HO2S (B1/S2) connector 1 (signal) ECM connector 49 (signal) Approx. below 1Ω
HO2S (B1/S2) connector 2 (ground) PCM connector 40 (ground) Approx. below 1Ω
HO2S (B1/S2) connector 2 (ground) ECM connector 48 (ground) Approx. below 1Ω

Good 

No Good