Mazda CX-9 Grand Touring 2009 Manual page 1077

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Is other DTCs present?
CLEAR AND ATTEMPT TO
RETRIEVE THE DTC
Clear the DTC from the PCM
memory using the M-MDS.
Turn the ignition switch to the ON
4
position (Engine running).
Run the engine for approx. 10 s .
Check for continuous memory
DTCs.
Is the same DTC present?
INSPECT FUEL TANK PRESSURE
AND PCM SENSOR CONNECTOR
FOR POOR CONNECTION
Turn the ignition switch off.
5
Disconnect the MAF/IAT sensor
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Are there any malfunction?
INSPECT THE FUEL TANK
PRESSURE
Inspect the MAF sensor. (See FUEL
6
TANK PRESSURE SENSOR
INSPECTION [MZI-3.7] .)
Is there malfunction?
INSPECT FOR CORRECT PCM
OPERATION
Disconnect all the PCM connectors.
Visually inspect for:
Pushed out pins
7
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?
VERIFY TROUBLESHOOTING OF
2008 Mazda CX-9 Grand Touring
Yes Go to the next step.
No
Yes Repair or replace suspected part, then go to Step 8.
No
Replace evaporative hose component, then go to
Yes Step 8. (See FUEL TANK
REMOVAL/INSTALLATION [MZI-3.7] .)
No
Yes Go to the next step.
No The system is correctly. Go to the next step.
DTC troubleshooting completed.
Go to the next step.
Go to the next step.