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Home >> Dodge and Ram >> 2012 >> Challenger SXT Plus >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 3.6L - DTCS P000A To P0157 >> Diagnosis And Testing >> P0157-O2 Sensor 2/2 Circuit Low >> Possible Causes
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Possible Causes

Possible Causes 
(K904) O2 SENSOR 2/2 RETURN CIRCUIT SHORTED TO GROUND
(K243) O2 SENSOR 2/2 SIGNAL CIRCUIT SHORTED TO GROUND
(K243) O2 SENSOR 2/2 SIGNAL CIRCUIT SHORTED TO THE (K904) O2 SENSOR 2/2 RETURN CIRCUIT
(K243) O2 SENSOR 2/2 SIGNAL CIRCUIT SHORTED TO THE O2 SENSOR 2/2 HEATER GROUND CIRCUIT
O2 SENSOR 2/2
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  .