Mazda CX 7. Manual — part 258

AUTOMATIC TRANSAXLE [AW6A-EL, AW6AX-EL]

05-17–21

05-17

TCM INSPECTION[AW6A-EL, AW6AX-EL]

id051723800300

TR Switch Operating Inspection

1. Verify that the starter operates only when the ignition switch is turned to the START position with the selector

lever in P or N position.

• If there is any malfunction, neutral position learning. (See 05-17-25 TCM REMOVAL/

INSTALLATION[AW6A-EL, AW6AX-EL].)

2. Verify that the back-up lights illuminate when shifted to R position with the ignition switch at the ON position.

• If there is any malfunction, neutral position learning. (See 05-17-25 TCM REMOVAL/

INSTALLATION[AW6A-EL, AW6AX-EL].)

3. Verify that the positions of the selector lever and

the indicator light correspond.

• If there is any malfunction, perform the neutral

position learning. (See 05-17-25 TCM
REMOVAL/INSTALLATION[AW6A-EL,
AW6AX-EL].)

4. Verify that the TR PID is normal.

• If there is any malfunction, perform the neutral

position learning. (See 05-17-25 TCM
REMOVAL/INSTALLATION[AW6A-EL,
AW6AX-EL].)

Control Module Inspection

1. Remove the air cleaner component. (See 01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH

TC].)

2. Measure the voltage at each TCM connector (wiring harness-side) terminal and refer to the terminal voltage

table.

• If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under

“Inspection item (s)”.

Warning

• Be careful not to damage the connector waterproofing when measuring the TCM terminal voltage.

If damaged, the waterproofing efficiency could be negatively affected.

Note

• Use the ground of terminal A9 of the TCM connector (wiring harness-side) when measuring terminal

voltage, as an error may occur when connecting the negative circuit tester to ground.

Terminal Voltage Table (Reference)

SELECTOR INDICATOR LIGHT

acxuuw00000412

Terminal

Signal

Connected to

Test condition

Voltage (V)

Inspection item (s)

A1

Battery back up
supply

Battery

Constant

B+

• Inspect battery

• Inspect related harness

A3

Up switch
(Selector lever
component)

Up switch
(Selector lever
component)

Shift up
(M range)

Below 1.0

• Inspect selector lever

component
(See 05-18-6 SELECTOR
LEVER COMPONENT
INSPECTION)

• Inspect related harness

Other ranges, all
positions

B+

A8 A7 A6 A5 A4 A3

A2 A1

A10 A9

A16 A15 A14 A13 A12 A11

TCM SHORT CORD CONNECTOR (TCM SIDE)

acxuuw00000521

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AUTOMATIC TRANSAXLE [AW6A-EL, AW6AX-EL]

05-17–22

3. Remove the TCM. (See05-17-25 TCM REMOVAL/INSTALLATION[AW6A-EL, AW6AX-EL].)
4. Verify that continuity or resistance at terminal is as indicated in the terminal continuity/resistance table.

• If there is any malfunction, inspect the parts under “Inspection item (s)”.

— If the system does not work properly even though the parts or related wiring harnesses do not have any

malfunction, replace the TCM. (See 05-17-25 TCM REMOVAL/INSTALLATION[AW6A-EL, AW6AX-
EL].)

A4

Down switch
(Selector lever
component)

Down switch
(Selector lever
component)

Shift down
(M range)

Below 1.0

• Inspect selector lever

component
(See 05-18-6 SELECTOR
LEVER COMPONENT
INSPECTION)

• Inspect related harness

Other ranges, all
positions

B+

A5

Starter relay

Starter relay

Shift the
selector
lever to
P or N
position.

Ignition
switch
ON

B+

• Inspect starter relay

• Inspect related harness

Ignition
switch
OFF

Below 1.0

A6

CAN_L

PCM

Because this
terminal is for serial
communication,
good/no good
judgment by
terminal voltage is
not possible. Carry
out inspection
according to DTCs.

—

• Inspect related harness

A7

M range switch

M range switch

M range

Below 1.0

• Inspect Selector lever

component
(See 05-18-6 SELECTOR
LEVER COMPONENT
INSPECTION)

• Inspect related harness

Other positions, all
ranges

B+

A11

Power supply

Ignition switch

Ignition switch ON

B+

• Inspect Ignition switch

• Inspect related harness

Ignition switch OFF

Below 1.0

A13

Back-up light relay

Back-up light relay

Ignition
switch
ON

Shift the
selector
lever to
R
position.

Below 1.0

• Inspect back-up light relay

(See 09-21-4 RELAY
INSPECTION)

• Inspect related harness

Other

B+

A14

CAN_H

PCM

Because this
terminal is for serial
communication,
good/no good
judgment by
terminal voltage is
not possible. Carry
out inspection
according to DTCs.

—

• Inspect related harness

Terminal

Signal

Connected to

Test condition

Voltage (V)

Inspection item (s)

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AUTOMATIC TRANSAXLE [AW6A-EL, AW6AX-EL]

05-17–23

05-17

Terminal Continuity/Resistance Table (Reference)

Terminal

Signal

Connected to

Test Condition

Continuity/

Resistance

Inspection item (s)

A9

System GND

GND

Constant

Continuity

• Inspect related harness

B1

Line pressure
control
solenoid
control GND

Line pressure
control
solenoid

• Inspect

resistance
between couple
component
terminals B3
and B1 (wiring
harness-side).

ATF
temperature:
20

°C {68°F}

5.0— 5.6

(ohms)

• Inspect line pressure

control solenoid
(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B2

Shift solenoid
B control

Shift solenoid
B

ATF temperature: 20

°C {68°F}

11— 15

(ohms)

• Inspect shift solenoid B

(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B3

Line pressure
control
solenoid
control

Line pressure
control
solenoid

• Inspect

resistance
between couple
component
terminals B3
and B1 (wiring
harness-side).

ATF
temperature:
20

°C {68°F}

5.0— 5.6

(ohms)

• Inspect line pressure

control solenoid
(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B4

TCC control
solenoid
control GND

TCC control
solenoid

• Inspect

resistance
between couple
component
terminals B9
and B4 (wiring
harness-side).

ATF
temperature:
20

°C {68°F}

5.0— 5.6

(ohms)

• Inspect TCC control

solenoid
(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B5

Shift solenoid
A control

Shift solenoid
A

ATF temperature: 20

°C {68°F}

11— 15

(ohms)

• Inspect shift solenoid A

(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B7

TFT sensor
GND

TFT sensor

• Inspect

resistance
between couple
component
terminals B7
and B8 (wiring
harness-side).

ATF
temperature:
10

°C {50°F}

5.62— 7.31
(kilohms)

• Inspect TFT sensor

(See 05-17-12
TRANSAXLE FLUID
TEMPERATURE (TFT)
SENSOR
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

ATF
temperature:
25

°C {77°F}

Approx. 3.5
(kilohms)

B8

TFT sensor

ATF
temperature:
110

°C {230°F}

0.22— 0.27
(kilohms)

COUPLE COMPONENT

B22

B18 B17 B16

B14 B13 B12

B11 B10 B9

B8

B7

B5

B1

B2

B3

B4

B21 B20 B19

A8 A7 A6 A5 A4 A3

A2 A1

A10 A9

A16 A15 A14 A13 A12 A11

TCM SHORT CORD CONNECTOR (TCM SIDE)

acxuuw00000522

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AUTOMATIC TRANSAXLE [AW6A-EL, AW6AX-EL]

05-17–24

B9

TCC control
solenoid
control

TCC control
solenoid

• Inspect

resistance
between couple
component
terminals B9
and B4 (wiring
harness-side).

ATF
temperature:
20

°C {68°F}

5.0— 5.6

(ohms)

• Inspect TCC control

solenoid
(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B10

Shift solenoid
C control GND

Shift solenoid
C

• Inspect

resistance
between couple
component
terminals B11
and B10 (wiring
harness-side).

ATF
temperature:
20

°C {68°F}

5.0— 5.6

(ohms)

• Inspect shift solenoid C

(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B11

Shift solenoid
C control

B12

Input/turbine
speed sensor
(–)

Input/turbine
speed sensor

• Inspect for continuity between

couple component terminals B12
and B13 (wiring harness-side).

Continuity

• Inspect input/turbine

speed sensor
(See 05-17-15 INPUT/
TURBINE SPEED
SENSOR
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B13

Input/turbine
speed sensor
(+)

B14

Shift solenoid
E control

Shift solenoid
E

• Inspect

resistance
between couple
component
terminals
B14and B22
(wiring harness-
side).

ATF
temperature:
20

°C {68°F}

5.0— 5.6

(ohms)

• Inspect shift solenoid E

(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B16

Shift solenoid
F control GND

Shift solenoid
F

• Inspect

resistance
between couple
component
terminals
B21and B16
(wiring harness-
side).

ATF
temperature:
20

°C {68°F}

5.0— 5.6

(ohms)

• Inspect shift solenoid F

(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B17

Shift solenoid
D control

Shift solenoid
D

• Inspect

resistance
between couple
component
terminals
B17and B18
(wiring harness-
side).

ATF
temperature:
20

°C {68°F}

5.0— 5.6

(ohms)

• Inspect shift solenoid D

(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B18

Shift solenoid
D control GND

B19

Vehicle speed
(–)

VSS

• Inspect for continuity between

couple component terminals B19
and B20 (wiring harness-side).

Continuity

• Inspect VSS

(See 05-17-18
VEHICLE SPEED
SENSOR (VSS)
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

B20

Vehicle speed
(+)

VSS

B21

Shift solenoid
F control

Shift solenoid
F

• Inspect

resistance
between couple
component
terminals
B21and B16
(wiring harness-
side).

ATF
temperature:
20

°C {68°F}

5.0— 5.6

(ohms)

• Inspect shift solenoid F

(See 05-17-20
SOLENOID VALVE
INSPECTION[AW6A-EL,
AW6AX-EL])

• Inspect related harness

Terminal

Signal

Connected to

Test Condition

Continuity/

Resistance

Inspection item (s)

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