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Home >> Chrysler >> 2007 >> 300 SRT-8 >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0125 To P0175 >> P0153-O2 Sensor 2/1 Slow Response >> Possible Causes
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Possible Causes

Possible Causes 
INTERMITTENT DTC
EXHAUST LEAK
(K43) O2 2/1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K902) O2 RETURN (UP) CIRCUIT SHORTED TO VOLTAGE
(K43) O2 2/1 SIGNAL CIRCUIT SHORTED TO GROUND
(K902) O2 RETURN (UP) CIRCUIT SHORTED TO GROUND
(K43) O2 2/1 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
(K902) O2 RETURN (UP) CIRCUIT OPEN OR HIGH RESISTANCE
2/1 OXYGEN SENSOR

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

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