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Home >> Jeep >> 2014 >> Cherokee Trailhawk, 3.2L Eng VIN S >> Repair and Diagnosis >> Engine Performance >> System >> 3.2L - DTCS P0157 To P0480 >> Diagnosis And Testing >> P0161-O2 Sensor 2/2 Heater Performance >> When Monitored

When Monitored

Engine running and heater duty cycle greater than 0%. Battery voltage greater than 11.0 Volts.