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Home >> Kia >> 2015 >> Soul Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) - 1.6L >> DTC P0037: HO2S Heater Control Circuit Low (Bank 1/Sensor 2) >> Wiring Inspection >> Control Circuit Inspection

Control Circuit Inspection

  1. IG "OFF" & Disconnect HO2S (S2) connector.
  2. IG "ON".
  3. Measure voltage between Pin No. 4 (Control) terminal of HO2S (S2) harness connector and chassis ground.

    Specification:  Approx. 3.5V

  4. IG "OFF" & Disconnect PCM connector.
  5. Measure resistance between Pin No. 4 (Control) terminal f HO2S (S2) harness connector and chassis ground.

    Specification: 

  6. Is the measured Value within specification?

    YES 

    NO