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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 P0141: -O2 Sensor 1/2 Heater Performance >> Possible Causes

Possible Causes

POSSIBLE CAUSES
(K299) O2 1/2 HEATER CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
GROUND CIRCUIT OPEN OR HIGH RESISTANCE
OXYGEN SENSOR 1/2
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.  Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .