Mazda Protege 5. Manual — part 224

ON-BOARD DIAGNOSTIC

05–02–24

End Of Sie

DTC P0731

A3U050201030W12

Diagnostic procedure

10

VERIFY TROUBLESHOOTING OF DTC P0715
COMPLETED

•

Make sure to reconnect all disconnected
connectors.

•

Clear DTC from memory using WDS or
equivalent.

•

Drive vehicle with vehicle speed 40 km/h {25
mph} or above for 0.7 second or more.

•

Is same DTC present?

Yes Replace PCM, then go to next step.

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

No

Go to next step.

11

VERIFY AFTER REPAIR PROCEDURE

•

Perform “After Repair Procedure”.

(See 05–02–6 AFTER REPAIR PROCEDURE.)

•

Are any DTCs present?

Yes Go to applicable DTC inspection.

No

Troubleshooting completed.

STEP

INSPECTION

ACTION

DTC P0731

Gear 1 incorrect (Incorrect Gear Ratio Detected)

DETECTION

CONDITION

•

PCM monitors revolution ratio of forward clutch drum revolution to differential gear case revolution when
the following monitoring conditions are met. If revolution ratio is below 2.157, PCM determines that there is
malfunction.

Monitoring condition:

— ATF temperature 20

°°°°

C {68

°°°°

F} or above.

— Driving in 1GR in D range.
— Engine run.
— Turbine speed within 225—4,988 rpm.
— Throttle opening angle 3.13% or above (FS engine)
— Throttle opening angle 3.91% or above (ZM engine)
— Differential gear case (output) revolution speed 35 rpm or above.
— Any of the following not generated: DTC P0500, P0705, P0706, P0710, P0715, P0751, P0752, P0753,

P0756, P0757, P0758, P0761, P0762, P0763, P0766, P0767, P0768, P0771, P0772, P0773.

Diagnostic support note:

•

This is a continuous monitor (CCM).

•

MIL does not illuminate.

•

O/D OFF indicator light flashes if PCM detects the above malfunction condition during first drive cycle.

•

FREEZE FRAME DATA is not available.

•

Pending code is not available.

•

DTC stored in the PCM memory.

POSSIBLE

CAUSE

•

ATF level low

•

Deteriorated ATF

•

Shift solenoid A stuck

•

Pressure control solenoid stuck

•

Line pressure low

•

One-way clutch slipping

•

Forward clutch slipping

•

Control valve stuck

•

Oil pump

•

PCM malfunction

STEP

INSPECTION

ACTION

1

VERIFY RELATED REPAIR INFORMATION
AVAILABILITY

•

Check for related Service Bulletins availability.

•

Is any related repair information available?

Yes Perform repair or diagnosis according to available repair

information.

No

Go to next step.

2

CHECK ATF CONDITION

•

Check ATF condition.
(See 05–17–17 AUTOMATIC TRANSAXLE
FLUID (ATF) INSPECTION.)

•

Is it okay?

Yes Go to next step.

No

Replace transaxle, then go to Step 8.

3

CHECK ATF LEVEL

•

Start engine.

•

Warm up ATX.

•

Is ATF level within specification?
(See 05–17–17 AUTOMATIC TRANSAXLE
FLUID (ATF) INSPECTION.)

Yes Go to next step.

No

Adjust ATF level, then go to Step 8.

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ON-BOARD DIAGNOSTIC

05–02–25

05–02

End Of Sie

4

INSPECT SHIFT SOLENOID VALVE A

•

Perform inspection of operation. (See 05–17–
28 SOLENOID VALVES INSPECTION.)

•

Verify the click sound of shift solenoid A when
applying B+ to transaxle connector terminal A.

•

Was click heard from solenoids?

Yes Go to next step.

No

Replace solenoid that you could not hear click sound, then
go to Step 8.
(See 05–17–30 SOLENOID VALVES REMOVAL/
INSTALLATION.)

5

INSPECT LINE PRESSURE

•

Start engine.

•

Measure line pressures.

Specification
FS engine
Idle: 330—470 kPa {3.4—4.7 kgf/cm

2

, 49—66

psi}
Stall: 1,160—1,320 kPa {11.9—13.4 kgf/cm

2

,

170—190 psi}
ZM engine
Idle: 330—470 kPa {3.4—4.7 kgf/cm

2

, 49—66

psi}
Stall: 1,200—1,360 kPa {12.3—13.8 kgf/cm

2

,

175—196 psi}

•

Is line pressure within specification?

(See 05–17–12 Line Pressure Test.)

Yes Go to next step.

No

All ranges: Replace oil pump, then go to Step 8.
Any ranges: Replace control valve body, then go to Step 8.
(See 05–17–36 CONTROL VALVE BODY REMOVAL/
INSTALLATION.)

6

INSPECT STALL SPEED

•

Measure stall speed in D range.
(See 05–17–13 Stall Test.)

Specification
FS engine: 2,200—2,500 rpm
ZM engine: 2,300—2,600 rpm

•

Is stall speed within specification?

Yes Go to next step.

No

Replace automatic transaxle, then go to Step8.
(See 05–17–31 AUTOMATIC TRANSAXLE (ATX)
REMOVAL/INSTALLATION.)

7

INSPECT FREQUENCY OF INPUT/TURBINE
SPEED SENSOR WHEN DRIVING VEHICLE

•

Turn ignition key to OFF.

•

Connect WDS or equivalent.

•

Start engine.

•

Measure frequency of input/turbine speed
sensor while driving vehicle under the following
conditions:
— Vehicle speed (VSS PID): 20 km/h {12

mph}

— Drive in D range, 1st gear
— Throttle opening angle (TP PID): about 25%

•

Was frequency of input/turbine speed sensor at
approx. 1,087 Hz?

Yes Go to next step.

No

Replace control valve body, then go to next step.
(See 05–17–36 CONTROL VALVE BODY REMOVAL/
INSTALLATION.)

8

VERIFY REPAIR OF DTC P0731

•

Make sure to reconnect all disconnected
connectors.

•

Clear DTC using WDS or equivalent.

•

Start engine.

•

Warm up transaxle.

•

Drive vehicle under the following conditions for
more than 15 seconds.
— ATF temperature: 20

°°°°

C {68

°°°°

F} or above

— Drive in D range, 1st gear
— Throttle opening angle (TP PID): 3.13% or

above (FS engine)

— Throttle opening angle (TP PID): 3.91% or

above (ZM engine)

— Vehicle speed (VSS PID): 4 km/h {3 mph}

or above

•

Are any DTCs present?

Yes Replace PCM, then go to next step.

No

Go to next step.

9

VERIFY AFTER REPAIR PROCEDURE

•

Perform “After Repair Procedure”.
(See 05–02–6 AFTER REPAIR
PROCEDURE.)

•

Are any DTCs present?

Yes Go to applicable DTC inspection.

No

Troubleshooting completed.

STEP

INSPECTION

ACTION

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ON-BOARD DIAGNOSTIC

05–02–26

DTC P0732

A3U050201030W13

Diagnostic procedure

DTC P0732

Gear 2 incorrect (Incorrect Gear Ratio Detected)

DETECTION

CONDITION

•

PCM monitors revolution ratio of forward clutch drum revolution to differential gear case revolution when
the following monitoring conditions are met. If revolution ratio is below 1.249 or above 2.157, PCM
determines that there is malfunction.

Monitoring condition:

— ATF temperature 20

°°°°

C {68

°°°°

F} or above.

— Driving in 2 GR in D range.
— Engine run.
— Turbine speed within 225—4,988 rpm.
— Differential gear case (output) revolution speed 35 rpm or above.
— Any of the following not generated: DTC P0500, P0705, P0706, P0710, P0715, P0751, P0752, P0753,

P0756, P0757, P0758, P0761, P0762, P0763, P0766, P0767, P0768, P0771, P0772, P0773.

Diagnostic support note:

•

This is a continuous monitor (CCM).

•

MIL does not illuminate.

•

O/D OFF indicator light flashes if PCM detects the above malfunction condition during first drive cycle.

•

FREEZE FRAME DATA is not available.

•

Pending code is not available.

•

DTC stored in the PCM memory.

POSSIBLE

CAUSE

•

ATF level low

•

Deteriorated ATF

•

Shift solenoids A, B or C stuck

•

Pressure control solenoid stuck

•

Line pressure low

•

2-4 brake band slipping

•

Forward clutch slipping

•

Control valve stuck

•

Oil pump

•

PCM malfunction

STEP

INSPECTION

ACTION

1

VERIFY RELATED REPAIR INFORMATION
AVAILABILITY

•

Check for related Service Bulletins availability.

•

Is any related repair information available?

Yes Perform repair or diagnosis according to available repair

information.

No

Go to next step.

2

CHECK ATF CONDITION

•

Check ATF condition.
(See 05–17–17 AUTOMATIC TRANSAXLE
FLUID (ATF) INSPECTION.)

•

Is it okay?

Yes Go to next step.

No

Replace transaxle, then go to Step 8.

3

CHECK ATF LEVEL

•

Start engine.

•

Warm up ATX.

•

Is ATF level within specification?
(See 05–17–17 AUTOMATIC TRANSAXLE
FLUID (ATF) INSPECTION.)

Yes Go to next step.

No

Adjust ATF level, then go to Step 8.

4

INSPECTION SHIFT SOLENOID VALVE A, B
AND C FOR CLICK SOUND

•

Perform inspection of operation. (See 05–17–
28 SOLENOID VALVES INSPECTION.)

•

Verify the click sound of shift solenoid A, B,
and C when applying B+ to each transaxle
connector terminal.

•

Was click heard from solenoids?

Yes Go to next step.

No

Replace solenoid that you could not hear click sound, then
go to Step 8.
(See 05–17–30 SOLENOID VALVES REMOVAL/
INSTALLATION.)

1712-1U-01G(05-02).fm 26 ページ ２００１年６月２９日 金曜日 午後４時３５分

ON-BOARD DIAGNOSTIC

05–02–27

05–02

End Of Sie

5

INSPECT LINE PRESSURE

•

Start engine.

•

Measure line pressures.

Specification
FS engine
Idle: 330—470 kPa {3.4—4.7 kgf/cm

2

, 49—66

psi}
Stall: 1,160—1,320 kPa {11.9—13.4 kgf/cm

2

,

170—190 psi}
ZM engine
Idle: 330—470 kPa {3.4—4.7 kgf/cm

2

, 49—66

psi}
Stall: 1,200—1,360 kPa {12.3—13.8 kgf/cm

2

,

175—196 psi}

•

Is line pressure within specification?

(See 05–17–12 Line Pressure Test.)

Yes Go to next step.

No

All ranges: Replace oil pump, then go to Step 8.
Any ranges: Replace control valve body, then go to Step 8.
(See 05–17–36 CONTROL VALVE BODY REMOVAL/
INSTALLATION.)

6

INSPECT STALL SPEED

•

Measure stall speed in D range.
(See 05–17–13 Stall Test.)

Specification
FS engine: 2,200—2,500 rpm
ZM engine: 2,300—2,600 rpm

•

Is stall speed within specification?

Yes Go to next step.

No

Replace automatic transaxle, then go to Step8.
(See 05–17–31 AUTOMATIC TRANSAXLE (ATX)
REMOVAL/INSTALLATION.)

7

INSPECT FREQUENCY OF INPUT/TURBINE
SPEED SENSOR WHEN DRIVING VEHICLE

•

Turn ignition key to OFF.

•

Connect WDS or equivalent.

•

Start engine.

•

Measure frequency of input/turbine speed
sensor while driving vehicle under the following
conditions:
— Vehicle speed: 40 km/h {24 mph} (VSS

PID)

— Drive in D range, 2nd gear
— Throttle opening angle: about 25% (TP PID)

•

Was frequency of input/turbine speed sensor at
approx. 1,156 Hz?

Yes Go to next step.

No

Replace control valve body, then go to next step.
(See 05–17–36 CONTROL VALVE BODY REMOVAL/
INSTALLATION.)

8

VERIFY REPAIR OF DTC P0732

•

Make sure to reconnect all disconnected
connectors.

•

Clear DTC using WDS or equivalent.

•

Start engine.

•

Warm up transaxle.

•

Drive vehicle under the following conditions for
more than 15 seconds.
— ATF temperature: 20

°°°°

C {68

°°°°

F} or above

— Drive in D range, 2nd gear
— Vehicle speed (VSS PID): 3.8 km/h {2.4

mph} or above

•

Are any DTCs present?

Yes Replace PCM, then go to next step.

No

Go to next step.

9

VERIFY AFTER REPAIR PROCEDURE

•

Perform “After Repair Procedure”.
(See 05–02–6 AFTER REPAIR
PROCEDURE.)

•

Are any DTCs present?

Yes Go to applicable DTC inspection.

No

Troubleshooting completed.

STEP

INSPECTION

ACTION

1712-1U-01G(05-02).fm 27 ページ ２００１年６月２９日 金曜日 午後４時３５分