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Home >> Kia >> 2009 >> Sorento Base, A5SR2 >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (1 Of 3) >> P0139: O2 Sensor Circuit Slow Response (Bank 1/Sensor 2) >> DTC Description

DTC Description

Checking output signals from HO2S under detecting condition, if the HO2S's response time is too long, ECM sets P0139. MIL (Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving cycle.