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Home >> Dodge and Ram >> 2008 >> Magnum Base >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0123 To P0175 >> P0131-O2 Sensor 1/1 Circuit Low >> Possible Causes
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Possible Causes

Possible Causes 
INTERMITTENT DTC
(K41) O2 1/1 SIGNAL CIRCUIT SHORTED TO GROUND
(K902) O2 RETURN (UP) CIRCUIT SHORTED TO GROUND
(K41) O2 1/1 SIGNAL CIRCUIT SHORTED TO THE (K902) O2 RETURN (UP) CIRCUIT
1/1 OXYGEN SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Perform *PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .