DTC P0571-00: Brake Switch Input Circuit Problem: Outline
DTC P0571:00 (PCM, VINs 7, L, M) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Brake switch input circuit problem |
| Detection condition |
- The brake switch does not switch even though the vehicle is stopped 8 times repeatedly from a vehicle speed of 30 km/h {19 mph} or more.
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| Fail-safe |
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| Possible cause |
CAUTION:
- Inspect the brake switch with it installed to the brake pedal, otherwise the brake switch may not operate normally. If the brake switch is removed from the brake pedal, replace the brake switch with a new one.
- Brake switch connector or terminals malfunction
- Open circuit in brake switch No. 2 ground circuit
- PCM connector or terminals malfunction
- Short to ground in brake switch No. 2 signal circuit
- Short to power supply in any of the following brake switch No. 2 circuits.
- Signal circuit
- Ground circuit
- Open circuit in any of the following brake switch No. 2 circuits.
- Signal circuit
- Ground circuit
- Brake switch No. 2 malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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