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Home >> Genesis >> 2021 >> G90 5.0 Ultimate, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Control System Diagnosis - 3.3L (3 Of 9)) >> DTC P0156-00: O2 Sensor Circuit (Bank 2/Sensor 2) >> Wiring Inspection >> Ground Circuit Inspection >> Check resistance

Check resistance

WARNING: This page is about a different variant/trim than selected.
  1. IG "OFF". Disconnect HO2S connector.
  2. Measure resistance between ground terminal of HO2S (B2/S2) harness connector and chassis ground.

    Specification:  Approx. 0Ω

  3. Is resistance within the specification?

    YES 

    NO 

    • Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
      NOTE: HO2S must have a clean air reference to function properly. The air is obtained by way of the sensor wire(s). Do not attempt to repair the wire(s), connector, or the terminals.
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