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Home >> Mazda >> 2016 >> 6 Touring, Standard Trans >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> On-Board Diagnostics [Dynamic Stability Control] >> DTC C0044-14; C0044-1C; C0044-65; C0044-66; C0044-67: Brake Fluid Pressure Sensor >> Notes

DTC C0044-14; C0044-1C; C0044-65; C0044-66; C0044-67: Brake Fluid Pressure Sensor: Notes

DTC C0044:14, C0044:1C, C0044:65, C0044:66, C0044:67 Brake fluid pressure sensor
DETECTION CONDITION 
  • C0044:14
    • With the DSC HU/CM terminal voltage within the normal range, the brake fluid pressure sensor power supply voltage is 4.7 V or less  , or 5.3 V or higher  for a continuous 1.2 s  , or the brake fluid pressure sensor output value is less than the specified value or exceeds than the specified value for a continuous 1.2 s  .
  • C0044:1C

    0-point output 

    • The brake fluid pressure sensor output value is less than the specified value or it exceeds than specified value for a continuous 5 s  with the brake switch in the off condition.

    Output increase 

    • The following condition is detected 9 times  continuously (One detection period is when ignition is switched from ON to off).
      • While the vehicle is traveling at a speed of 7 km/h {4 mph} or more  , the deceleration rate calculated from the brake fluid pressure sensor signal value is detected 5 times or more  at 1/4 or less  than the normal value for a continuous 1 s  .
  • C0044:65, C0044:67

    Sticking 

    • While the vehicle is traveling at a speed of 7 km/h {4 mph} or more  , no fluctuation in the output value at 0.048 MPa {0.49 kgf/cm 2  , 7.0 psi} or higher  is detected with the brake fluid pressure sensor output value exceeding specified value.

    Sticking during braking 

    • While the vehicle is traveling at a speed of 40 km/h {25 mph} or more,  the amount of fluctuation in the brake fluid pressure sensor value is detected 5 times  to be 0.048 MPa {0.49 kgf/cm 2  , 7.0 psi} or less  until the vehicle speed reaches 0 km/h {0 mph}  and with the brake switch on.
  • C0044:66
    • While the vehicle is traveling at a speed of 10 km/h {6.2 mph} or more,  a brake fluid pressure sensor signal value of 1000 MPa/s or more  is detected 7 times or more  during a 5 s  period.
FAIL-SAFE FUNCTION 
POSSIBLE CAUSE 
  • DSC HU/CM malfunction
    • Brake fluid pressure sensor malfunction
    • Short or open circuit in brake fluid pressure sensor circuit
  • Brake switch malfunction
  • PCM malfunction
SYSTEM WIRING DIAGRAM  -