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Home >> Chrysler >> 2007 >> Sebring Base, 2.4 K >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTCS P0131 To P0204 - NGC >> P0157-O2 Sensor 2/2 Circuit Low >> Possible Causes
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Possible Causes

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

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

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