» » »

Chrysler Q&A

Ask Your Question

2004 Chrysler 300M Question: ENGINE CODES

 

Question

MICHAELP4514, Bay Shore, NY, September 30, 2009, 16:56
Profile_thumbnail
 Enthusiast

WHAT IS ENGINE CODE PO138?

2 Answers
Flag This
  • Medium-star Best Answer
    Bret Bodas from RepairPal Test Shop, September 30, 2009, 17:34
     Master

    Here is some info from the repair manual about this code. It is a bit technical, but the problem points to an issue with the oxygen sensor circuit. The sensor is supposed to operate within a specific voltage range, and the control module measured a voltage above that range, meaning there is a fault in the wiring, sensor or the control module.

    Trouble Code: P0138 (3.5L V6 VIN G Auto)
    O2 (B1 S2) Sensor Voltage High Condition:
    Trouble Code Conditions:
    Engine runtime for 119 seconds; O2 Sensor heater temperature is more than 662ºF (350ºC); Battery voltage more than 10.99v. O2 Sensor voltage is above 3.7v for 60 seconds (300M, Magnum, Pacifica), or 3.99v for 60 seconds (PT Cruiser, Sebring, Stratus)

    Possible Causes:
    * O2 Sensor signal circuit or return circuit shorted to voltage
    * O2 Sensor has failed
    * O2 Sensor signal circuit or return circuit open
    * PCM has failed

    Reply
    Flag This
  • Answer #2

    February 14, 2010, 13:42
     Rookie

    dos chiging timing belt cause shifting transmation

    Reply
    Flag This