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Mazda
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2004
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3 i, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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On-Board Diagnostic [Engine Control System]
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DTC P0043: Rear Ho2S Heater Circuit Low Input
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Diagnostic Procedure
Diagnostic Procedure
Fig 1: DTC P0043: Diagnostic Procedure Chart (Steps 1 & 2)
Courtesy of MAZDA MOTORS CORP.
Fig 2: DTC P0043: Diagnostic Procedure Chart (Steps 3-8)
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.