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Home >> Chrysler >> 2009 >> 300 LX >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P000B To P0118 >> P0038-O2 Sensor 1/2 Heater Circuit High >> Possible Causes

Possible Causes

Possible Causes 
(K299) O2 1/2 HEATER CONTROL CIRCUIT SHORTED TO VOLTAGE
(K299) O2 1/2 HEATER CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
(Z904/Z920) GROUND CIRCUIT OPEN OR HIGH RESISTANCE
1/2 OXYGEN SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  . 

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