DTC P0133: Front Ho2S Circuit Slow Response

Fig 1: DTC P0133 Detection Condition & Possible Causes Chart

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Diagnostic Procedure 

Fig 2: DTC P0133 Diagnostic Procedure Chart (Step 1-5)

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Fig 3: DTC P0133 Diagnostic Procedure Chart (Step 6-15)

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Fig 4: DTC P0133 Diagnostic Procedure Chart (Step 16-17)

Courtesy of MAZDA MOTORS CORP.