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Home >> Dodge and Ram >> 2011 >> Nitro Detonator, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0016 To P0206 >> Diagnosis And Testing >> P0155-O2 Sensor 2/1 Heater Performance >> Possible Causes

Possible Causes

Possible Causes 
(K199) O2 2/1 HEATER CONTROL CIRCUIT OPEN
(Z933) O2 HEATER GROUND CIRCUIT OPEN
2/1 O2 SENSOR HEATER
POWERTRAIN CONTROL MODULE (PCM)

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

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