Mazda CX 7. Manual — part 235

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]

05-02–49

05-02

End Of Sie

DTC P0973[AW6A-EL, AW6AX-EL]

id050211803400

5

INSPECT TERMINAL LINE PRESSURE
CONTROL SOLENOID FOR POOR
CONNECTION

• Disconnect the line pressure control solenoid

connector.

• Inspect for poor connection (such as damaged/

pulled-out pins, corrosion).

• Are terminals normal?

Yes

Go to the next step.

No

Replace the couple component, then go to Step 7.

6

INSPECT TERMINAL COUPLE COMPONENT
CIRCUIT FOR SHORT TO POWER

• Inspect for continuity between couple

component terminals (wiring harness-side).
— Terminal B3 and all terminals except B3/B1

— Terminal B1 and all terminals except B3/B1

• Is there continuity?

Yes

Repair or replace the couple component, then go to the
next step.

No

Replace the control valve body, then go to the next step.
(See 05-17-38 CONTROL VALVE BODY REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)

7

VERIFY TROUBLESHOOTING OF DTC P0963
COMPLETED

• Make sure to reconnect all the disconnected

connectors.

• Clear the DTC from the memory using the M-

MDS.

• Drive the vehicle in D range and make sure

that gears shift smoothly from 1GR to 6GR.

• Is same DTC present?

Yes

Replace the TCM, then go to the next step.
(See 05-17-25 TCM REMOVAL/INSTALLATION[AW6A-EL,
AW6AX-EL].)

No

Go to the next step.

8

VERIFY AFTER REPAIR PROCEDURE

• Perform the “After Repair Procedure”.

(See 05-02-4 AFTER REPAIR
PROCEDURE[AW6A-EL, AW6AX-EL].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.
(See 05-02-5 DTC TABLE[AW6A-EL, AW6AX-EL].)

No

DTC troubleshooting completed.

STEP

INSPECTION

ACTION

DTC P0973

Shift solenoid A circuit malfunction (short to ground)

DETECTION

CONDITION

• Short to ground in shift solenoid A signal system (The solenoid remains off continuously for 100 ms or

more even if the TCM sends a solenoid on command).

Diagnostic support note:

• This is continuous monitor (CCM).

• The MIL illuminates if the TCM detects the above malfunction condition during first drive cycle.

• A PENDING CODE is not available.

• FREEZE FRAME DATA is available.

• The AT warning light illuminates.

• The DTC is stored in the TCM memory.

POSSIBLE

CAUSE

• Short to ground in wiring harness between shift solenoid A terminal A and TCM terminal B5

• Shift solenoid A malfunction

• Damaged connector between shift solenoid A and TCM

• TCM malfunction

1871-1U-06B(05-02).fm 49 ページ ２００６年３月１５日 水曜日 午前１１時１８分

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]

05-02–50

Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED

• Has the FREEZE FRAME DATA been

recorded?

Yes

Go to the next step.

No

Record the FREEZE FRAME DATA on the repair order,
then go to the next step.

2

VERIFY RELATED REPAIR INFORMATION
AVAILABILITY

• Verify related Service Bulletins and/or on-line

repair information availability.

• Is any related repair information available?

Yes

Perform repair or diagnosis according to the available
repair information.

• If the vehicle is not repaired, go to the next step.

No

Go to the next step.

3

INSPECT TERMINAL COUPLE COMPONENT
FOR POOR CONNECTION

• Turn the ignition switch to the LOCK position.

• Remove the TCM.

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

• Inspect for poor connection (such as damaged/

pulled-out pins, corrosion).

• Are terminals normal?

Yes

Go to the next step.

No

Replace the couple component, then go to Step 7.

4

INSPECT RESISTANCE OF SHIFT SOLENOID A
CIRCUIT

• Inspect for resistance between couple

component terminal B5 (wiring harness-side)
and ground.

• Is resistance within 11— 15 ohms?

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

Yes

Go to go to Step 7.

No

Go to the next step.

5

INSPECT TERMINAL SHIFT SOLENOID A FOR
POOR CONNECTION

• Disconnect the shift solenoid A connector.

• Inspect for poor connection (such as damaged/

pulled-out pins, corrosion).

• Are terminals normal?

Yes

Go to the next step.

No

Replace the couple component, then go to Step 7.

DTC P0973

Shift solenoid A circuit malfunction (short to ground)

A

B5

TCM

A

SHIFT SOLENOID A

SHIFT SOLENOID A WIRING
HARNESS-SIDE CONNECTOR

COUPLE COMPONENT CONNECTOR

7

6

3

5

4

COUPLE COMPONENT

B5

1871-1U-06B(05-02).fm 50 ページ ２００６年３月１５日 水曜日 午前１１時１８分

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]

05-02–51

05-02

End Of Sie

DTC P0974[AW6A-EL, AW6AX-EL]

id050211803500

6

INSPECT TERMINAL COUPLE COMPONENT
CIRCUIT FOR SHORT TO GROUND

• Inspect for continuity between couple

component terminal B5 and all terminals
except B5 (wiring harness-side).

• Is there continuity?

Yes

Repair or replace the couple component, then go to the
next step.

No

Replace the control valve body, then go to the next step.
(See 05-17-38 CONTROL VALVE BODY REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)

7

VERIFY TROUBLESHOOTING OF DTC P0973
COMPLETED

• Make sure to reconnect all the disconnected

connectors.

• Clear the DTC from the memory using the M-

MDS.

• Drive the vehicle in D range and make sure

that gears shift smoothly from 1GR to 6GR.

• Is same DTC present?

Yes

Replace the TCM, then go to the next step.
(See 05-17-25 TCM REMOVAL/INSTALLATION[AW6A-EL,
AW6AX-EL].)

No

Go to the next step.

8

VERIFY AFTER REPAIR PROCEDURE

• Perform the “After Repair Procedure”.

(See 05-02-4 AFTER REPAIR
PROCEDURE[AW6A-EL, AW6AX-EL].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.
(See 05-02-5 DTC TABLE[AW6A-EL, AW6AX-EL].)

No

DTC troubleshooting completed.

STEP

INSPECTION

ACTION

DTC P0974

Shift solenoid A circuit malfunction (short to power/open circuit)

DETECTION

CONDITION

• Open or short circuit in shift solenoid A signal system (The solenoid remains on continuously for 100 ms or

more even if the TCM sends a solenoid off command).

Diagnostic support note:

• This is continuous monitor (CCM).

• The MIL illuminates if the TCM detects the above malfunction condition during first drive cycle.

• A PENDING CODE is not available.

• FREEZE FRAME DATA is available.

• The AT warning light illuminates.

• The DTC is stored in the TCM memory.

POSSIBLE

CAUSE

• Open circuit in wiring harness between shift solenoid A terminal A and TCM terminal B5

• Short to power in wiring harness between shift solenoid A terminal A and TCM terminal B5

• Shift solenoid A malfunction

• Damaged connector between shift solenoid A and TCM

• TCM malfunction

1871-1U-06B(05-02).fm 51 ページ ２００６年３月１５日 水曜日 午前１１時１８分

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]

05-02–52

Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED

• Has the FREEZE FRAME DATA been

recorded?

Yes

Go to the next step.

No

Record the FREEZE FRAME DATA on the repair order,
then go to the next step.

2

VERIFY RELATED REPAIR INFORMATION
AVAILABILITY

• Verify related Service Bulletins and/or on-line

repair information availability.

• Is any related repair information available?

Yes

Perform repair or diagnosis according to the available
repair information.

• If the vehicle is not repaired, go to the next step.

No

Go to the next step.

3

INSPECT TERMINAL COUPLE COMPONENT
FOR POOR CONNECTION

• Turn the ignition switch to the LOCK position.

• Remove the TCM.

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

• Inspect for poor connection (such as damaged/

pulled-out pins, corrosion).

• Are terminals normal?

Yes

Go to the next step.

No

Replace the couple component, then go to Step 8.

4

INSPECT RESISTANCE OF SHIFT SOLENOID A
CIRCUIT

• Inspect for resistance between couple

component terminal B5 (wiring harness-side)
and ground.

• Is resistance within 11— 15 ohms?

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

Yes

Go to go to Step 8.

No

Go to the next step.

5

INSPECT TERMINAL SHIFT SOLENOID A FOR
POOR CONNECTION

• Disconnect the shift solenoid A connector.

• Inspect for poor connection (such as damaged/

pulled-out pins, corrosion).

• Are terminals normal?

Yes

Go to the next step.

No

Replace the couple component, then go to Step 8.

DTC P0974

Shift solenoid A circuit malfunction (short to power/open circuit)

A

B5

TCM

A

SHIFT SOLENOID A

SHIFT SOLENOID A WIRING
HARNESS-SIDE CONNECTOR

COUPLE COMPONENT CONNECTOR

7

6

3

5

4

COUPLE COMPONENT

B5

1871-1U-06B(05-02).fm 52 ページ ２００６年３月１５日 水曜日 午前１１時１８分