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Home >> Mazda >> 2004 >> 3 s, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System] >> On-Board Diagnostic Test >> DTC Reading Procedure
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DTC Reading Procedure

  1. Perform the necessary vehicle preparation and visual inspection.
  2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver compartment.
  3. Retrieve the DTCs using the WDS or equivalent.
    Fig 1: Identifying DLC-2 Connector Location
    G00974362Courtesy of MAZDA MOTORS CORP.
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