Mazda CX-5 Service & Repair Manual: ABS Control
Outline
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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
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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.
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The ABS control system has independent front wheel control and unified control (select low) for the rear wheels.
NOTE:
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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.
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Construction
Block Diagram
Operation
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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
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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:
Main Relay [Skyactiv G 2.0]
Purpose/Function
Supplies power to each part.
Supplies battery voltage to each part based on the signals from the PCM even
though the ignition is switched on or off.
Construction
Installed to the relay and fuse block.
Operation
After the contact poin ...
Lighting System Personalization
A personalization function has been adopted with which settings for each
function can be changed.
The following settings for the auto light system and interior light control
system can be changed as desired.
There are two types of customization procedures; one using the M ...
SRS Air Bag Deployment Criteria
This chart indicates the applicable SRS equipment that will deploy depending
on the type of collision.
(The illustrations are the representative cases of collisions.)
X: The SRS air bag equipment is designed to deploy in a collision.
*1 (With Driver and Front Passenger Occupant Classification ...
