Mazda CX-7 2007 Workshop Manual page 974

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]
Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Verify related Service Bulletins and/or on-line
repair information availability.
• Is any related repair information available?
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?
4 INSPECT RESISTANCE OF TCC CONTROL
SOLENOID CIRCUIT
• Inspect for resistance between couple
component terminals B9 and B4 (wiring
harness-side).
• Is resistance within 5.0— 5.6 ohms?
(See 05-17-20 SOLENOID VALVE
INSPECTION[AW6A-EL, AW6AX-EL].)
5 INSPECT TERMINAL TCC CONTROL
SOLENOID FOR POOR CONNECTION
• Disconnect the TCC control solenoid
connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Are terminals normal?
6 INSPECT TERMINAL COUPLE COMPONENT
CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between couple
component terminals and line pressure control
solenoid terminals (wiring harness-side).
— Terminal B9 and terminal B
— Terminal B4 and terminal A
• Is there continuity?
7 INSPECT TERMINAL COUPLE COMPONENT
CIRCUIT FOR SHORT TO GROUND
• Inspect for continuity between couple
component terminals (wiring harness-side).
— Terminal B9 and all terminals except B9/B4
— Terminal B4 and all terminals except B9/B4
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P2764
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?
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?
End Of Sie
05-02–86
INSPECTION
Yes Go to the next step.
No Record the FREEZE FRAME DATA on the repair order,
then go to the next step.
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.
Yes Go to the next step.
No Replace the couple component, then go to Step 8.
Yes Go to go to Step 8.
No Go to the next step.
Yes Go to the next step.
No Replace the couple component, then go to Step 8.
Yes Go to the next step.
No Repair or replace the couple component, then go to Step 8.
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].)
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.
Yes Go to the applicable DTC inspection.
(See 05-02-5 DTC TABLE[AW6A-EL, AW6AX-EL].)
No DTC troubleshooting completed.
ACTION