Signal Circuit Inspection

2013 Hyundai Genesis Coupe 2.0T PremiumSECTION 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

    Fig 1: Measuring Voltage Between Signal Terminal Of HO2S (B1S2) Harness Connector & Chassis Ground
    G00541052Courtesy of HYUNDAI MOTOR CO.
  3. Is voltage within the specification?

    YES 

    • Go to the next Inspection procedure.

    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.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.