Mazda 2006 MX-5 - Operating Condition Transition Diagram; Abs Wheel-Speed Sensor and Abs Sensor Rotor Function; Controller Area Network (Can) Outline; Data Received

ANTILOCK BRAKE SYSTEM
04–13–10
Operating Condition Transition Diagram
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CONTROLLER AREA NETWORK (CAN) OUTLINE
E5U041343750N09
• The ABS HU/CM sends and receives data to and from other modules via the CAN system. Refer to Section 09
for a detailed explanation of the CAN. (See 09–40–1 CONTROLLER AREA NETWORK (CAN) SYSTEM
OUTLINE.)
Data sent
• Brake system condition
• Wheel speeds of all four wheels
• Brake system warning light illumination request
• ABS warning light illumination request
Data received
• Brake pedal position
• Tire size
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ABS WHEEL-SPEED SENSOR AND ABS SENSOR ROTOR FUNCTION
E5U041343720N01
• The ABS wheel-speed sensor and ABS sensor rotor detect the rotation condition of each wheel and transmit
this information to the ABS HU/CM.
• The signal from the ABS wheel-speed sensor is the primary signal that the ABS HU/CM uses when carrying
out control.
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43210
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0
VEHICLE SPEED
REAR
WHEEL SPEED
FRONT
WHEEL SPEED
FRONT BRAKE
FLUID PRESSURE
REAR BRAKE
FLUID PRESSURE
EBD INITIAL CONTROL VALUE
EBD CONTROL AREA
ABS INITIAL CONTROL VALUE
ABS CONTROL AREA
SPEED
REAR SOLENOID
VALVE CONTROL
BRAKE FLUID
PRESSURE
PRESSURE REDUCTION
TIME
PRESSURE MAINTAINED
PRESSURE INCREASE
HIGH
TIME
HIGH
C3U0413S012