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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Engine Control System Diagnosis - 1.6L (3 Of 3) (Except HEV)) >> DTC P2270: O2 Sensor Signal Stuck Lean (Bank 1 Sensor 2) >> Wiring Inspection >> Ground Circuit Inspection

Ground Circuit Inspection

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

    Specification:  below 1 Ω

  3. Is the measured voltage within specification?

    YES 

    NO