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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 1/2 Below Threshold › Diagnostic Test › 1. Check For Current DTC

1. Check For Current DTC

Turn the ignition on.

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

Is this DTC present? 

  1. Yes  >> For complete diagnosis of this DTC, see DTC P0137: O2 SENSOR 1/2 ABOVE THRESHOLD  .
  2. No  >> Go To 2
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