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Home >> Chrysler >> 2005 >> 300 Base >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0122 To P0175 >> Diagnosis And Testing >> P0141-O2 Sensor 1/2 Heater Performance >> Possible Causes
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Possible Causes

Possible Causes 
(K299) O2 1/2 HEATER CONTROL CIRCUIT OPEN
(Z902) O2 HEATER GROUND CIRCUIT OPEN
O2 SENSOR HEATER ELEMENT
PCM

Always perform the  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  before proceeding. 

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