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Home >> Mazda >> 2012 >> 6 s Touring Plus >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Symptom Troubleshooting [Instrument Cluster (With Malfunction Warning Light)] >> No. 5 Brake System Warning Light Illuminates [Instrument Cluster (With Malfunction Warning Light)] >> Notes

No. 5 Brake System Warning Light Illuminates [Instrument Cluster (With Malfunction Warning Light)]: Notes

5 Brake system warning light illuminates
POSSIBLE CAUSE 
  • Instrument cluster and DSC HU/CM configuration data do not coincide
  • Instrument cluster configuration incomplete or in error
  • BCM malfunction
  • DSC HU/CM malfunction
  • DSC HU/CM stores DTC
  • Brake fluid level sensor malfunction (BCM)
  • Parking brake switch malfunction (BCM)
  • 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