DTC P0571: Brake Switch Input Circuit Problem

Fig 1: DTC P0571 Detection Condition & Possible Causes Chart (1 Of 2)

Courtesy of MAZDA MOTORS CORP.

Fig 2: DTC P0571 Detection Condition & Possible Causes Chart (2 Of 2)

Courtesy of MAZDA MOTORS CORP.

Diagnostic Procedure 

Fig 3: DTC P0571 Diagnostic Procedure Chart (Step 1-9)

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Fig 4: DTC P0571 Diagnostic Procedure Chart (Step 10-12)

Courtesy of MAZDA MOTORS CORP.