Mazda CX-9 Grand Touring 2007 Manual page 677

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
CIRCUIT FOR OPEN CIRCUIT
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between PCM
terminal 1 BD (wiring harness-side)
and body ground.
Is the voltage B+ ?
6 INSPECT FOR CORRECT PCM
OPERATION
Disconnect all the PCM connectors.
Visually inspect for:
Pushed out pins
Corrosion
Connect all the PCM connectors
and verify that they seat correctly.
Retrieve DTCs using the M-MDS.
Is the PENDING CODE for this
DTC present?
7 VERIFY TROUBLESHOOTING OF
DTC P0689 HAS BEEN COMPLETED
Verify that all disconnected
connectors reconnected.
Clear the DTC from the PCM
memory using the M-MDS.
Perform the "KOEO or KOER self-
test" using the M-MDS.
(See KOEO/KOER SELF TEST
[MZI-3.5].)
Is the PENDING CODE for the
DTC present?
8 VERIFY AFTER REPAIR
PROCEDURE
Perform the "AFTER REPAIR
PROCEDURE". (See AFTER
REPAIR PROCEDURE [MZI-
3.5].)
Are any DTCs present?
2007 Mazda CX-9 Grand Touring
No
Yes
No
Yes
No
Yes
No
Repair or replace suspected part, then go
to Step 7.
Go to the next step.
The system is correctly. Go to the next
step.
Replace the PCM, then go to the next step.
(see PCM
REMOVAL/INSTALLATION [MZI-
3.5] .)
Go to the next step.
Go to the applicable DTC inspection. (See
DTC TABLE [MZI-3.5].)
Troubleshooting completed.