Mazda CX-5 Service & Repair Manual: ABS Control
Outline
-
ABS control occurs when wheel slip is determined by the DSC CM (based on the four ABS wheel-speed sensors). Then, the DSC HU inlet and outlet solenoid valves are operated and brake fluid pressure is controlled accordingly to prevent wheel lock-up.
Feature
-
Use of ABS control during emergency braking or on slippery road surfaces allows directional stability to be maintained, steerability ensured, and stopping distance to be reduced.
-
The ABS control system has independent front wheel control and unified control (select low) for the rear wheels.
NOTE:
-
Select low control: A control system in which the left and right vehicle wheel speeds are compared and brake fluid pressure is controlled according to the wheel most likely to lock-up.
-
Construction
Block Diagram
Operation
-
When the DSC CM determines wheel slip conditions based on the signals from the ABS wheel-speed sensors during braking, the DSC CM operates the DSC HU inlet and outlet solenoid valves, reducing and maintaining brake fluid pressure in accordance with the wheel slip factors. Then, when the wheel slip condition has passed, brake fluid pressure is increased and maintained, ensuring braking with a constantly stable brake force.
Control condition transition diagram
ABS
...
ABS Wheel Speed Sensor And ABS Sensor Rotor
Purpose/Function
The ABS wheel-speed sensor and ABS sensor rotor detect the rotation condition
of each wheel and transmit this information to the DSC HU/CM.
The signal from the ABS w ...
Other materials:
Lap Pre Tensioner Seat Belt [Two Step Deployment Control System]
Purpose
The lap pre-tensioner seat belts retract and tighten the seat belt webbing
to protect the front passengers during a collision.
Function
The lap pre-tensioner seat belts operate (deploy) based on the operation
signal from the SAS control module to instantly retract a ...
Rear Shock Absorber Disposal
WARNING:
Whenever drilling into a rear shock absorber, wear protective eye wear. The
gas in the rear shock absorber is pressurized, and could spray metal chips into
the eyes and face when drilling.
1. Clamp a rear shock absorber on a flat surface or with the piston pointing
...
PID/Data Monitor Inspection [Start Stop Unit]
1. Connect the M-MDS to the DLC?2.
2. After the vehicle is identified, select the following items from the initialization
screen of the M-MDS.
Select “DataLogger”.
Select “Modules”.
Select “SSU”.
3. Select the applicable PID from the PID table.
4. Veri ...
