Mazda 5. Manual — part 20

GENERAL INFORMATION

00–00–11

00

#6 : Part name of diesel engine

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ABBREVIATIONS

B3E000000011A01

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ATF

Automatic Transaxle Fluid

AT

Automatic Transaxle

CAN

Controller Area Network

SST

Special Service Tools

TFT

Transaxle Fluid Temperature

05–17–1

05

TRANSMISSION/TRANSAXLE

SECTION

05

Toc of SCT

AUTOMATIC TRANSAXLE . . . 05-17
TECHNICAL DATA. . . . . . . . . . 05-50

SERVICE TOOLS . . . . . . . . . . . 05-60

Toc of SCT

05–17

AUTOMATIC TRANSAXLE

AUTOMATIC TRANSAXLE OUTLINE . . 05–17–1
AUTOMATIC TRANSAXLE FEATURES . 05–17–2
AUTOMATIC TRANSAXLE

CROSS-SECTIONAL VIEW . . . . . . . . . 05–17–3

OUTLINE OF OPERATION . . . . . . . . . . . 05–17–4
EC-AT OPERATION CHART . . . . . . . . . . 05–17–6
TORQUE CONVERTER OUTLINE . . . . . 05–17–7
TORQUE CONVERTER STRUCTURE . . 05–17–8
POWER FLOW OUTLINE . . . . . . . . . . . . 05–17–9
POWER FLOW STRUCTURE . . . . . . . . . 05–17–9
POWER FLOW OPERATION . . . . . . . . . 05–17–11
FORWARD CLUTCH, 3-4 CLUTCH, REVERSE

CLUTCH, LOW AND REVERSE BRAKE
OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 05–17–18

FORWARD CLUTCH, 3-4 CLUTCH, REVERSE

CLUTCH, LOW AND REVERSE BRAKE
OPERATION . . . . . . . . . . . . . . . . . . . . . 05–17–18

CENTRIFUGAL BALANCE CLUTCH

OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 05–17–20

CENTRIFUGAL BALANCE CLUTCH

STRUCTURE . . . . . . . . . . . . . . . . . . . . . 05–17–20

CENTRIFUGAL BALANCE CLUTCH

OPERATION . . . . . . . . . . . . . . . . . . . . . 05–17–21

2-4 BRAKE BAND OUTLINE . . . . . . . . . 05–17–21
2-4 BRAKE BAND STRUCTURE . . . . . . 05–17–21
2-4 BRAKE BAND OPERATION. . . . . . . 05–17–21
ONE-WAY CLUTCH OUTLINE . . . . . . . . 05–17–22
ONE-WAY CLUTCH STRUCTURE . . . . . 05–17–22
ONE-WAY CLUTCH OPERATION . . . . . 05–17–22
PLANETARY GEAR OUTLINE . . . . . . . . 05–17–23
PLANETARY GEAR STRUCTURE . . . . . 05–17–24
PLANETARY GEAR OPERATION . . . . . 05–17–24
PARKING MECHANISM OUTLINE . . . . . 05–17–29
PARKING MECHANISM STRUCTURE. . 05–17–29
PARKING MECHANISM OPERATION . . 05–17–29
OUTPUT GEAR OUTLINE . . . . . . . . . . . 05–17–30
OIL PUMP OUTLINE . . . . . . . . . . . . . . . . 05–17–31
OIL PUMP STRUCTURE. . . . . . . . . . . . . 05–17–32
OIL PUMP OPERATION . . . . . . . . . . . . . 05–17–33
FORWARD CLUTCH, 3-4 CLUTCH

HYDRAULIC CIRCUIT OUTLINE . . . . . 05–17–33

CONTROL VALVE BODY OUTLINE . . . . 05–17–34
SHIFT SOLENOID A, B AND C

(DUTY-CYCLE TYPE) OUTLINE . . . . . 05–17–36

SHIFT SOLENOID A, B AND C

(DUTY-CYCLE TYPE) FUNCTION . . . . 05–17–36

SHIFT SOLENOID A, B AND C (DUTY-CYCLE

TYPE) OPERATION . . . . . . . . . . . . . . . . 05–17–36

SHIFT SOLENOID D, AND E (ON/OFF TYPE)

OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 05–17–37

SHIFT SOLENOID D, AND E (ON/OFF TYPE)

FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 05–17–37

SHIFT SOLENOID D, AND E (ON/OFF TYPE)

OPERATION . . . . . . . . . . . . . . . . . . . . . . 05–17–37

PRESSURE CONTROL SOLENOID (LINEAR TYPE)

OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 05–17–38

PRESSURE CONTROL SOLENOID

(LINEAR TYPE) OPERATION . . . . . . . . 05–17–38

AUTOMATIC TRANSAXLE CLEANING. . 05–17–38
AUTOMATIC TRANSAXLE

DISASSEMBLY. . . . . . . . . . . . . . . . . . . . 05–17–39

ACCUMULATORS

DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–52

OIL PUMP DISASSEMBLY/ASSEMBLY . 05–17–53
FORWARD CLUTCH

DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–56

CLUTCH COMPONENT

DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–60

FRONT INTERNAL GEAR ONE-WAY CLUTCH

COMPONENT
DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–68

BAND SERVO

DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–70

LOW AND REVERSE BRAKE AND ONE-WAY

CLUTCH INNER RACE DISASSEMBLY/
ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . 05–17–72

PARKING MECHANISM

DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–76

SECONDARY GEAR AND OUTPUT GEAR

DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–78

PRIMARY GEAR

DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–80

CONTROL VALVE BODY

DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–81

DIFFERENTIAL

DISASSEMBLY/ASSEMBLY . . . . . . . . . 05–17–92

SECONDARY GEAR BEARING

PRELOAD . . . . . . . . . . . . . . . . . . . . . . . . 05–17–96

DIFFERENTIAL BEARING PRELOAD . . 05–17–99
AUTOMATIC TRANSAXLE ASSEMBLY . 05–17–102
AUTOMATIC TRANSAXLE

INSPECTION . . . . . . . . . . . . . . . . . . . . . 05–17–123

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AUTOMATIC TRANSAXLE OUTLINE

B3E051701030A01

• An electronically controlled automatic transaxle with FN4A-EL type four-speed torque converter clutch

05–17–2

AUTOMATIC TRANSAXLE

combining advanced electronic and mechanical technologies has been adopted.

• In the FN4A-EL type automatic transaxle, the part count is greatly reduced to lessen its size and weight. Also, a

well-balanced powertrain mechanism with high reliability is adopted to improve marketability.

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AUTOMATIC TRANSAXLE FEATURES

B3E051701030A02

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Realization of excellent shift quality

• Electronic pressure-adjusting control of line pressure by a

liner type solenoid (pressure control solenoid) adopted

• Electronic control (direct electric shift control) of clutch

pressure by duty-cycle type solenoids (shift solenoid A, B,
and C) adopted

• Centrifugal balance clutch chamber adopted

High efficiency, compactness, and light weight

• Miniature trochoid gear type oil pump with torque converter

direct drive adopted

• Bonded seal piston adopted

• Tow-step final gear drive mechanism adopted

Improved reliability, reduced NVH (noise, vibration and
harshness)

• Double arranged gears with a single planetary gear unit

adopted

AUTOMATIC TRANSAXLE

05–17–3

05

AUTOMATIC TRANSAXLE CROSS-SECTIONAL VIEW

B3E051701030A03

.

6

8

7

4

3

9

12

10

5

1

2

14

11

13

B3E0517T002

1

Torque converter

2

Oil pump

3

Forward clutch

4

Front planetary gear

5

Rear planetary gear

6

3-4 clutch

7

Reverse clutch

8

2-4 brake band

9

Low and reverse brake

10

One-way clutch

11

Primary gear

12

Secondary gear

13

Output gear

14

Differential