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Home >> Chrysler >> 2004 >> Crossfire Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Electrical Diagnostics >> Diagnosis And Testing >> DTC P0137: O2 Sensor 2/2 Above Threshold >> Diagnostic Test >> 1. Check For Current DTC
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1. Check For Current DTC

NOTE: It is important to perform the diagnostics on the O2 Sensor that set the DTC.
NOTE: Check for contaminates that may have damaged the O2 Sensor: contaminated fuel, unapproved silicone, oil and coolant.
NOTE: If the PCM detects and stores a DTC, the PCM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the DRB III(R) at the same time the DTC is displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for an active DTC.

Turn the ignition on.

With the DRB III(R), erase PCM DTCs.

NOTE: It maybe necessary to road test the vehicle for this DTC to set.

With the DRB III(R), read the PCM DTCs.

Did this DTC set again? 

  1. Yes  >> Go To 2
  2. No  >> Go To 5 
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