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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 >> P0151-O2 Sensor 2/1 Circuit Low >> Possible Causes
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Possible Causes

Possible Causes 
(K902) O2 SENSOR 2/1 RETURN CIRCUIT SHORTED TO GROUND
(K43) O2 SENSOR 2/1 SIGNAL CIRCUIT SHORTED TO GROUND
(K43) O2 SENSOR 2/1 SIGNAL CIRCUIT SHORTED TO THE (K902) O2 SENSOR 2/1 RETURN CIRCUIT
(K43) O2 SENSOR 2/1 SIGNAL CIRCUIT SHORTED TO THE HEATER GROUND CIRCUIT
O2 SENSOR 2/1
POWERTRAIN CONTROL MODULE (PCM)

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