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Home >> Kia >> 2018 >> Rio LX, 4D Hatchback, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0139-00: O2 Sensor Circuit Slow Response >> Wiring Inspection >> Basic Inspection >> Inspection Procedure

Inspection Procedure

  1. Check fuses and relays.
  2. Check battery terminals and charge status.
  3. Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

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