Mazda CX 7. Manual — part 236
ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]
05-02–53
05-02
End Of Sie
DTC P0976[AW6A-EL, AW6AX-EL]
id050211803600
6
INSPECT TERMINAL COUPLE COMPONENT
CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between couple
component terminal B5 (wiring harness-side)
and shift solenoid A terminal A wiring harness-
side).
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the couple component, then go to Step 8.
7
INSPECT TERMINAL COUPLE COMPONENT
CIRCUIT FOR SHORT TO POWER
• 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].)
8
VERIFY TROUBLESHOOTING OF DTC P0974
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.
9
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 P0976
Shift solenoid B circuit malfunction (short to ground)
DETECTION
CONDITION
• Short to ground in shift solenoid B signal system (The solenoid remains off continuously for 100 ms or
more even if the TCM sends a solenoid on command).
Diagnostic support note:
• 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 B terminal A and TCM terminal B2
• Shift solenoid B malfunction
• Damaged connector between shift solenoid B and TCM
• TCM malfunction
1871-1U-06B(05-02).fm 53 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]
05-02–54
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 B
CIRCUIT
• Inspect for resistance between couple
component terminal B2 (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.
DTC P0976
Shift solenoid B circuit malfunction (short to ground)
A
B2
TCM
A
SHIFT SOLENOID B
SHIFT SOLENOID B WIRING
HARNESS-SIDE CONNECTOR
COUPLE COMPONENT CONNECTOR
6
3
5
4
COUPLE COMPONENT
B2
1871-1U-06B(05-02).fm 54 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]
05-02–55
05-02
End Of Sie
DTC P0977[AW6A-EL, AW6AX-EL]
id050211803700
5
INSPECT TERMINAL SHIFT SOLENOID B FOR
POOR CONNECTION
• Disconnect the shift solenoid B 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 GROUND
• Inspect for continuity between couple
component terminal B2 and all terminals
except B2 (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 P0976
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 P0977
Shift solenoid B circuit malfunction (short to power/open circuit)
DETECTION
CONDITION
• Open or short circuit in shift solenoid B signal system (The solenoid remains on continuously for 100 ms or
more even if the TCM sends a solenoid off command).
Diagnostic support note:
• 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 B terminal A and TCM terminal B2
• Short to power in wiring harness between shift solenoid B terminal A and TCM terminal B2
• Shift solenoid B malfunction
• Damaged connector between shift solenoid A and TCM
• TCM malfunction
1871-1U-06B(05-02).fm 55 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]
05-02–56
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 B
CIRCUIT
• Inspect for resistance between couple
component terminal B2 (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.
DTC P0977
Shift solenoid B circuit malfunction (short to power/open circuit)
A
B2
TCM
A
SHIFT SOLENOID B
COUPLE COMPONENT CONNECTOR
7
6
3
5
4
COUPLE COMPONENT
B2
SHIFT SOLENOID B WIRING
HARNESS-SIDE CONNECTOR
1871-1U-06B(05-02).fm 56 ページ 2006年3月15日 水曜日 午前11時18分
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