Mazda Protege 5. Manual — part 254

AUTOMATIC TRANSAXLE

05–17–25

05–17

TRANSAXLE FLUID TEMPERATURE (TFT) SENSOR INSPECTION

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1. Measure the resistance between the terminals E

and H.

•

If it is out of specifications, replace the TFT
sensor. (See 05–17–25 TRANSAXLE FLUID
TEMPERATURE (TFT) SENSOR REMOVAL/
INSTALLATION.)

End Of Sie

TRANSAXLE FLUID TEMPERATURE (TFT) SENSOR REMOVAL/INSTALLATION

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Warning

••••

When the transaxle and ATF are hot, they can badly burn. Turn off the engine and wait until they
are cool before performing this procedure.

1. Remove the oil pan. (See 05–17–36 On-vehicle Removal.)
2. Disconnect the TFT sensor connector.

ATF temperature (

°°°°

C {

°°°°

F})

Resistance (kilohm}

–20 {–4}

236—324

0 {32}

84.3—110

20 {68}

33.5—42.0

40 {104}

14.7—17.9

60 {140}

7.08—8.17

80 {176}

3.61—4.15

100 {212}

1.96—2.24

120 {248}

1.13—1.28

130 {266}

0.87—0.98

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AUTOMATIC TRANSAXLE

05–17–26

3. Remove the TFT sensor.
4. Install a new TFT sensor.
5. Connect the TFT sensor connector.
6. Install the oil pan. (See 05–17–38 On-vehicle

Installation.)

7. Carry out the mechanical system test. (See 05–

17–11 MECHANICAL SYSTEM TEST.)

End Of Sie

INPUT/TURBINE SPEED SENSOR INSPECTION

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Resistance Inspection

1. Measure the resistance between the terminals of

the input/turbine speed sensor.

Resistance

250—600 ohms (ATF temperature:–40—160

°°°°

C {–40—320

°°°°

F})

•

If not as specified, replace the input/turbine
speed sensor. (See 05–17–26 INPUT/
TURBINE SPEED SENSOR REMOVAL/
INSTALLATION.)

End Of Sie

INPUT/TURBINE SPEED SENSOR REMOVAL/INSTALLATION

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1. Disconnect the negative battery cable.
2. Remove the air cleaner component. (See 01–13A–5 INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [ZM].)

(See 01–13B–6 INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [FS].)

3. Disconnect the input/turbine speed sensor connector.
4. Remove the input/turbine speed sensor.
5. Apply ATF to a new O-ring and install it on a new

input/turbine speed sensor.

6. Install the input/turbine speed sensor.

Tightening torque

7.9—10.7 N·m {80—110 kgf·cm, 69.5—95.4

in·lbf}

7. Connect the input/turbine speed sensor

connector.

8. Install the air cleaner component. (See 01–13A–5

INTAKE-AIR SYSTEM REMOVAL/
INSTALLATION [ZM].) (See 01–13B–6
INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [FS].)

9. Connect the negative battery cable.

End Of Sie

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AUTOMATIC TRANSAXLE

05–17–27

05–17

VEHICLE SPEEDOMETER SENSOR (VSS) INSPECTION [ATX]

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Visual Inspection

1. Remove the VSS. (See 05–17–28 VEHICLE SPEEDOMETER SENSOR (VSS) REMOVAL/INSTALLATION

[ATX].)

2. Make sure that the sensor is free of any metallic shavings or particles.

•

If any are found on the sensor, clean them off.

3. Install the VSS. (See 05–17–28 VEHICLE SPEEDOMETER SENSOR (VSS) REMOVAL/INSTALLATION

[ATX].)

Wave profile Inspection

1. Remove the PCM. (See 01–40A–7 PCM REMOVAL/INSTALLATION [ZM].) (See 01–40B–7 PCM REMOVAL/

INSTALLATION [FS].)

2. Connect WDS or equivalent to DLC-2 connector.
3. Connect the SST (104 Pin Breakout Box) to the

PCM as shown.

4. Connect osilloscope test leads to the following

PCM connector terminals.

•

(+) lead: PCM terminal 58

•

(-) lead: PCM terminal 103

5. Start the engine.
6. Monitor VSS PID.

7. Inspect wave profile.

•

PCM terminal: 58 (+)-103(-)

•

Oscilloscope setting: 1 V/DIV(Y), 2.5 ms/
DIV(X), DC range

•

Vehicle condition: drive the vehicle with 32
km/h{20 mph}
— If wave profile or voltage are out of

specifications, carry out the “Open Circuit
Inspection” or “Short Circuit Inspection”

Power Supply Voltage Inspection

1. Disconnect the VSS connector.
2. Turn the ignition switch to ON.
3. Measure voltage at VSS connector terminal B

(wiring harness side).

Specification

4.5—5.5 V

•

If voltage is okay, go to “See 05–17–27 Open
Circuit Inspection” and “Short Circuit
Inspection”.

•

If voltage is wrong, repair wiring harness
between VSS and PCM.

Open Circuit Inspection

1. Inspect the following circuit for open.

•

Power circuit (VSS connector terminal A to main relay terminal D)

•

Ground circuit (VSS connector terminal C to GND)

•

If an open circuit or short circuit is found, repair the malfunctioning wiring harness.

•

If there are no open or short circuits, perform the sensor rotor inspection. (See 05–17–28 Sensor Rotor
Inspection.)

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AUTOMATIC TRANSAXLE

05–17–28

Short Circuit Inspection

1. Inspect the following circuit for short.

•

Power circuit (VSS connector terminal A to
main relay terminal D)

•

If an open circuit or short circuit is found,
repair the malfunctioning wiring harness.

•

If there are no open or short circuits, perform
the sensor rotor inspection. (See 05–17–28
Sensor Rotor Inspection.)

Sensor Rotor Inspection

1. Remove the VSS. (See 05–17–28 VEHICLE SPEEDOMETER SENSOR (VSS) REMOVAL/INSTALLATION

[ATX].)

2. Shift the selector lever to N position.
3. Inspect sensor rotor surface via VSS installation hole while rotating the front tire manually.

(1) Is sensor rotor free of damage and cracks?
(2) Is sensor rotor free of any metallic shavings or particles?

•

If sensor rotor is okay, replace VSS.

•

If there is a problem, clean or replace the sensor rotor.

End Of Sie

VEHICLE SPEEDOMETER SENSOR (VSS) REMOVAL/INSTALLATION [ATX]

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1. Disconnect the negative battery cable.
2. Disconnect the VSS connector.
3. Remove the VSS.
4. Apply ATF to a new O-ring and install it on a new

VSS.

5. Install the VSS.

Tightening torque

7.9—10.7 N·m {80—110 kgf·cm, 69.5—95.4

in·lbf}

6. Connect the VSS connector.
7. Connect the negative battery cable.

End Of Sie

SOLENOID VALVES INSPECTION

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Inspection of Resistance (On-vehicle)

1. Measure the resistances between the following

terminals.

•

If any resistances are out of specifications,
inspect the ground, then perform the
operation and the part inspection.

ATF temperature: –40—150

°°°°

C {–40—302

°°°°

F}

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Termina

l

Solenoid valve

Resistance

(ohm)

A-GND

Shift solenoid A

1.0—4.2

B-GND

Shift solenoid D

10.9—26.2

C-GND

Shift solenoid B

1.0—4.2

D-I

Pressure control solenoid

2.4—7.3

F-GND

Shift solenoid E

10.9—26.2

G-GND

Shift solenoid C

1.0—4.2

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