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Home >> Mazda >> 2021 >> CX-9 Signature >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic - Front Body Control Module (FBCM) >> DTC B1048-7B: Brake Fluid Level Sensor Circuit Malfunction [Front Body Control Module (FBCM)] >> Notes

DTC B1048-7B: Brake Fluid Level Sensor Circuit Malfunction [Front Body Control Module (FBCM)]: Notes

DTC B1048:7B [FRONT BODY CONTROL MODULE (FBCM)] DETECTION CONDITION AND POSSIBLE CAUSE

Description Brake fluid level sensor circuit malfunction
Detection condition
  • Front body control module (FBCM) detected that the brake fluid level is less than MIN with the ignition switched ON (engine off or on).
Fail-safe Not applicable
Possible cause
  • Insufficient brake fluid level
  • Brake fluid level sensor connector or terminal malfunction
  • Front body control module (FBCM) connector or terminal malfunction
  • Short to ground in wiring harness between brake fluid level sensor terminal A and front body control module (FBCM) terminal 2Q
  • Brake fluid level sensor malfunction
  • Front body control module (FBCM) malfunction
G13700536Courtesy of MAZDA MOTORS CORP.