Mazda X-5. Manual — part 55

04–00–1

04

BRAKES

SECTION

04–00

Toc of SCT

OUTLINE . . . . . . . . . . . . . . . . . . 04-00
ON-BOARD DIAGNOSTIC . . . . 04-02
CONVENTIONAL BRAKE

SYSTEM . . . . . . . . . . . . . . . . . 04-11

PARKING BRAKE SYSTEM . . . 04-12

ANTILOCK BRAKE

SYSTEM. . . . . . . . . . . . . . . . . 04-13

DYNAMIC STABILITY

CONTROL . . . . . . . . . . . . . . . 04-15

Toc of SCT

04–00

OUTLINE

BRAKE ABBREVIATIONS . . . . . . . . . . . . 04–00–1
BRAKE FEATURES . . . . . . . . . . . . . . . . . 04–00–2

BRAKE SPECIFICATIONS . . . . . . . . . . . 04–00–2

End of Toc

BRAKE ABBREVIATIONS

E5U040000000N01

End Of Sie

ABS

Antilock Brake System

AT

Automatic Transmission

CAN

Controller Area Network

CM

Control Module

DSC

Dynamic Stability Control

EBD

Electronic Brakeforce Distribution

HU

Hydraulic Unit

IG

Ignition

LF

Left Front

LR

Left Rear

MT

Manual Transmission

PID

Parameter Identification

RF

Right Front

RR

Right Rear

SW

Switch

TCS

Traction Control System

WDS

Worldwide Diagnostic System

OUTLINE

04–00–2

BRAKE FEATURES

E5U040000000N02

End Of Sie

BRAKE SPECIFICATIONS

E5U040000000N03

End Of Sie

Improved safety

• Intrusion minimizing brake pedal adopted

• Electronic brakeforce distribution (EBD) control adopted

• Antilock brake system (ABS) adopted

• Dynamic stability control (DSC) adopted

Improved braking force

• Large diameter front disc brakes adopted

• Large diameter rear disc brakes adopted

• Large diameter power brake unit adopted

Improved serviceability

• Combined sensor integrating the yaw rate and lateral-G sensors adopted

• Steering angle sensor that uses controller area network (CAN) adopted

• Enhanced malfunction diagnosis system for use with WDS or equivalent

Improved operability

• Center lever type parking brake, adjustable from vehicle interior, adopted

Size and weight reduction

• Integrated construction of the hydraulic unit (HU) and control module (CM) adopted for the

ABS HU/CM and DSC HU/CM

• Integrated construction of the front wheel hub component and front ABS wheel-speed sensor

adopted

Improved durability

• Plunger type master cylinder adopted

Improved reliability

• Semi-conductor element type front ABS wheel-speed sensor adopted

• Magnetic encoder type front ABS sensor rotor adopted

• DSC HU/CM with built-in brake fluid pressure sensor

Item

Specification

Brake pedal

Type

Suspended design

Pedal lever ratio

2.9

Max. stroke

(mm {in})

133 {5.24}

Master
cylinder

Type

Tandem (plunger type)

Cylinder bore

(mm {in})

22.2 {0.87}

Front brake
(disc)

Type

Ventilated disc

Cylinder bore

(mm {in})

54.0 {2.13}

Pad dimensions (area x thickness)

4,670 x 9 {7.472 x 0.35}

(mm

2

x mm {in

2

x in})

Disc plate dimensions
(outer diameter x thickness)

290 x 22 {11.4 x 0.87}

(mm {in})

Rear brake
(disc)

Type

Solid disc

Cylinder bore

(mm {in})

38.18 {1.5}

Pad dimensions (area x thickness)

2,470 x 7.5 {3.952 x 0.3}

(mm

2

x mm {in

2

x in})

Disc plate dimensions
(outer diameter x thickness)

280 x 10 {11.0 x 0.39}

(mm {in})

Power brake
unit

Type

Vacuum multiplier

Single diaphragm

Outer diameter

(mm {in})

248 {9.75}

Rear wheel
braking force
control device

Type

Without ABS/DSC: Dual proportioning valve

With ABS/DSC: EBD (Electronic brakeforce distribution)

Parking brake

Type

Mechanical two-rear-wheel control

Operation system

Center lever type

Brake fluid

Type

SAE J1703, FMVSS 116 DOT3

ON-BOARD DIAGNOSTIC

04–02–1

04–02

04–02

ON-BOARD DIAGNOSTIC

ON-BOARD DIAGNOSTIC SYSTEM

OUTLINE (ABS, DYNAMIC STABILITY
CONTROL) . . . . . . . . . . . . . . . . . . . . . . 04–02–2

Block Diagram . . . . . . . . . . . . . . . . . . . 04–02–2

ON-BOARD DIAGNOSTIC SYSTEM

FUNCTION (ABS, DYNAMIC
STABILITY CONTROL) . . . . . . . . . . . . . 04–02–3

Malfunction Detection Function . . . . . . 04–02–3
Memory Function . . . . . . . . . . . . . . . . . 04–02–3
Fail-safe Function. . . . . . . . . . . . . . . . . 04–02–3

ON-BOARD DIAGNOSTIC SYSTEM

PID/DATA MONITOR FUNCTION
(ABS, DYNAMIC STABILITY
CONTROL) . . . . . . . . . . . . . . . . . . . . . . 04–02–7

PID/DATA Monitor Table

(Vehicles with ABS) . . . . . . . . . . . . . . 04–02–7

PID/DATA Monitor Table

(Vehicles with DSC) . . . . . . . . . . . . . . 04–02–7

ON-BOARD DIAGNOSTIC SYSTEM

ACTIVE COMMAND MODES
FUNCTION (ABS, DYNAMIC
STABILITY CONTROL) . . . . . . . . . . . . . 04–02–8

Active Command Modes Table

(Vehicles with ABS) . . . . . . . . . . . . . . . 04–02–8

Active Command Modes Table

(Vehicles with DSC) . . . . . . . . . . . . . . 04–02–8

ON-BOARD DIAGNOSTIC SYSTEM

EXTERNAL TESTER COMMUNICATION
FUNCTION (ABS, DYNAMIC STABILITY
CONTROL) . . . . . . . . . . . . . . . . . . . . . . . 04–02–9

Connections and Communication

Contents . . . . . . . . . . . . . . . . . . . . . . . 04–02–9

Serial communication . . . . . . . . . . . . . . 04–02–9

DLC-2 CONSTRUCTION . . . . . . . . . . . . . 04–02–10

End of Toc

ON-BOARD DIAGNOSTIC

04–02–2

ON-BOARD DIAGNOSTIC SYSTEM OUTLINE (ABS, DYNAMIC STABILITY CONTROL)

E5U040243750N01

• The on-board diagnostic system consists of a malfunction detection system that detects abnormalities in input/

output signals when the ignition switch is at the ON position, a data monitor function that reads out specified
input/output signals and a simulation function that allows for override operation of output parts (such as
solenoid valves).

• The data link connector 2 (DLC-2), which groups together all the connectors used for malfunction diagnosis

and detecting/repair into a single location, has been adopted, thereby improving serviceability. Diagnosis is
performed by connecting the WDS or equivalent to the DLC-2.

• In addition to DTC read-out, the WDS or equivalent is used to clear DTCs using the display screen of the

diagnostic tester, and to access the PID/data monitor and simulation functions, providing enhanced malfunction
diagnosis and improved serviceability.

Block Diagram

End Of Sie

DLC-2

ON-BOARD DIAGNOSTIC FUNCTION

MEMORY
FUNCTION

MALFUNCTION DISPLAY
FUNCTION

SERIAL
COMMUNICATION

MALFUNCTION
DETECTION
FUNCTION

PID/DATA
MONITOR
FUNCTION

ACTIVE COMMAND
MODES FUNCTION

FAIL-SAFE
FUNCTION

HU
INSPECTION
FUNCTION

INPUT
DEVICE

NORMAL CONTROL AREA

OUTPUT
DEVICE

WDS OR EQUIVALENT

*ONLY VEHICLES WITH DSC

DSC
INDICATOR
LIGHT*

DSC OFF
LIGHT*

ABS
WARNING
LIGHT

BRAKE
SYSTEM
WARNING
LIGHT

E5U402ZS5001