LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2015 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) - 2.4L (Except HEV) >> DTC P0136: O2 Sensor Circuit (Bank 1/Sensor 2) >> Wiring Inspection >> Signal Circuit Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Signal Circuit Inspection

  1. Ignition "ON" & Engine "OFF".
  2. Measure voltage between signal terminal of HO2S (B1S2) harness connector and chassis ground.

    Specification :  Approx. 0.4 ~ 0.5V

  3. Is voltage within the specification?

    YES 

    • Go to next step as indicated below.

    NO 

    • Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
      NOTE:

      HO2S must have a clean air specified 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.

scientia non olet · About LEMON Manuals