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:
Engine
Special Features
For SKYACTIV-G 2.0, the following is performed to lower fuel consumption.
Improvement of mechanical resistance loss
Narrowed down crankshaft journal
Optimized piston skirt shape
Lowered piston ring tension
...
Wheels And Tires
Outline
An adhesive-type balance weights has been adopted to the outer side of the
aluminum alloy wheels. Due to this, a stylish wheel design is realized.
In consideration of the environment, steel balance weights have been adopted
to reduce the use of lead in the vehicle.
...
Clutch Pedal Position (CPP) Switch Inspection [Skyactiv G 2.0]
Continuity Inspection
1. Verify that the CPP switch is installed properly..
2. Disconnect the negative battery cable..
3. Disconnect the CPP switch connector.
4. Verify that the continuity between CPP switch terminals A and B when the clutch
pedal is depressed and when it is released is acc ...
