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DTC B1048 7B: Brake Fluid Level Sensor Circuit Malfunction: Notes

DTC B1048 7B 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 function  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
G09771786Courtesy of MAZDA MOTORS CORP.