Mazda CX-7 2007 Workshop Manual page 929

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 FUSE
• Turn the ignition switch to the LOCK position.
• Inspect METER IG 15 A fuse and TCM 10 A
fuse for malfunction.
• Is it normal?
4 INSPECT VOLTAGE OF POWER SUPPLY
CIRCUIT
• Turn the ignition switch to the ON position
(engine off).
• Inspect for voltage TCM connector terminal A1
and A11 (wiring harness-side).
• Is the voltage B+?
5 INSPECT POWER SUPPLY CIRCUIT FOR
SHORT TO GROUND
• Disconnect the positive battery cable.
• Inspect for continuity between the fuse
terminals and body ground.
— ROOM 15 A fuse terminal and body ground
— TCM 10 A fuse terminal and body ground
• Is there continuity?
6 INSPECT POWER SUPPLY CIRCUIT FOR OPEN
CIRCUIT
• Inspect for continuity between TCM connector
terminals and fuse terminals (wiring harness-
side).
— Terminal A1 and TCM 10 A fuse
— Terminal A11 and METER IG 15 A fuse
• Is there continuity?
7 INSPECT TCM CONNECTOR FOR POOR
CONNECTION
• Disconnect the TCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Are terminals normal?
8 INSPECT GROUND CIRCUIT FOR OPEN
CIRCUIT
• Inspect for continuity between TCM connector
terminal A9 (wiring harness-side) and body
ground.
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P0882
COMPLETED
• Make sure to reconnect all the disconnected
connectors.
• Clear the DTC from the memory using the M-
MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
10 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
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.
• If fuse has been melted, go to the next step.
No
• If fuse is not installed correctly, install it correctly, then
go to Step 9.
Yes Go to go to Step 7.
No Go to the next step.
Yes Repair or replace the wiring harness and install new fuse,
then go to Step 9.
No Go to the next step.
Yes Go to Step 8.
No Repair or replace the harness, then go to Step 9.
Yes Go to the next step.
No Replace the couple component, then go to Step 9.
Yes Go to the next step.
No Repair or replace the harness, then go to Step 9.
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
05-02–41
05-02