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Home >> Hyundai >> 2025 >> Kona SEL, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 2.0 (3 Of 15) >> DTC P0139-00: O2 Sensor Circuit Slow Response (Bank 1/Sensor 2) >> DTC Information >> DTC Setting Condition

DTC Setting Condition

Item DTC setting condition
Main Action Signal monitoring
Prerequisite Condition Engine coolant temperature over 73°C
Downstream oxygen readiness detection status
Preheating of the Downstream oxygen sensor
Catalyst temperature model above 400°C
When entering the fuel cutoff, the Downstream oxygen sensor signal is over 0.6V
no related errors
Battery Voltage 11 ~ 16V
Trouble Determination If the average percentage of the maximum permissible time to switch from rich to lean during fuel cutoff is greater than 1
Diagnosis Time Detected during 4 or more fuel cuts
Threshold Value for Warning Light 2nd drive cycle
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