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Home >> Jeep >> 2015 >> Compass Limited, AWD, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 2.0L & 2.4L - DTCS P000A To P0302 >> DTC Troubleshooting >> DTC P0139: -O2 Sensor 1/2 Slow Response >> Set Condition

Set Condition

The O2 signal voltage does not switch quickly enough from rich to lean when the fuel is turned off during a coast with the throttle closed. Two Trip Fault. Three good trips to turn off the MIL.