SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 550 (ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM L3))DTC P0571 [L3]NOTES
2010 Mazda 5 Sport, 2.3 L, Standard

DTC P0571 [L3]: Notes

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Notes
WARNING: This page is about a different car, the 2008 Mazda 5. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0571 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES

DTC P0571 Brake switch circuit malfunction
DETECTION CONDITION 
  • The PCM monitors changes in input voltage for brake switch No.1 and No.2 (signal from instrument cluster). If the PCM detects that both brake switches No.1 and No.2 remain on or off for 15 s, it determines that the brake switch circuit has a malfunction.

Diagnostic support note 
  • This is a continuous monitor (Other).
  • The MIL does not illuminate.
  • FREEZE FRAME DATA is not available.
  • DTC is stored in PCM memory.
POSSIBLE CAUSE 
  • Brake switch malfunction
  • Open circuit between brake switch terminal C and instrument cluster terminal 2M
  • Open circuit between brake switch terminal B and body ground
  • Short to power between brake switch terminal C and instrument cluster terminal 2M
  • Short to ground circuit between brake switch terminal C and instrument cluster terminal 2M
  • Communication error between PCM and instrument cluster
  • PCM malfunction
G05542972
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.