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Home >> Mazda >> 2017 >> 5 GT, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Symptom Troubleshooting - Instrument Cluster >> No. 5 Brake System Warning Light Illuminates >> Notes

No. 5 Brake System Warning Light Illuminates: Notes

NO. 5 BRAKE SYSTEM WARNING LIGHT ILLUMINATES (INSTRUMENT CLUSTER) POSSIBLE CAUSE

5 Brake system warning light illuminates
POSSIBLE CAUSE
  • DSC HU/CM malfunction
  • Brake fluid level is low
  • Brake fluid level sensor malfunction
  • Parking brake switch malfunction
  • Short to ground in wiring harness between brake fluid level sensor and BCM terminal 1N
  • Short to ground in wiring harness between parking brake switch and BCM terminal 2Q
  • Instrument cluster malfunction
  • Connector or pin malfunction
  • Short circuit in wiring harness between CAN-L, CAN-H and ground
  • Open circuit in CAN wiring harness (CAN-L, CAN-H)
  • CAN wiring harness (CAN-L, CAN-H) short each other
  • Malfunction in brake switch signal input to PCM (PCM stores DTC P0571:00 and/or P0703:00.) (without malfunction warning light)