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Home >> Kia >> 2019 >> Soul Base, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Engine Control System Diagnosis (1 Of 3)) >> DTC P0139-00: O2 Sensor Circuit Slow Response (Bank 1/Sensor 2) >> DTC Information >> DTC Description

DTC Description

WARNING: This page is about a different car, the 2018 Hyundai Accent. However, it is still accessible from the selected car via links, so may be relevant.

ECM checks output signals from HO2S under detecting condition. ECM judges it's signals too slow and sets P013900, if output signal from rear HO2S isn't increased up to specification level within a short time after fuel cut.

(This DTC might be caused by the malfunction of Heater circuit, so, check the heater circuit first.)

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