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Home >> Subaru >> 2007 >> Outback F4-2.5L SOHC >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Diagnostic Trouble Code Descriptions >> Diagnostic Trouble Code (DTC) Detecting Criteria >> P0138

P0138

DTC P0138 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 2)

NOTE: For the diagnostic procedure, refer to DTC P0137.