been recorded?
then go to the next step.
2
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
z
Verify related Service Bulletins
and/or on-line repair
information availability.
z
Is any related Service Bulletins
available?
Yes
Perform repair or diagnosis according to the available
Service Bulletins.
z
If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT MAF SENSOR
CONNECTOR FOR POOR
CONNECTION
z
Turn the ignition switch off.
z
Disconnect the MAF/IAT
sensor connector.
z
Inspect for poor connection
(such as damaged/pulled-out
pins, corrosion).
z
Are there any malfunction?
Yes Repair or replace suspected part, then go to Step 7.
No
Go to the next step.
4
INSPECT MAF SIGNAL
CIRCUIT FOR SHORT TO
POWER SUPPLY
z
Turn the ignition switch to the
ON position (Engine off).
z
Measure voltage between MAF
sensor terminal D (wiring
harness-side) and body ground.
z
Is voltage B+?
No Repair or replace suspected part, then go to Step 7.
Yes
Go to the next step.
5
INSPECT PCM CONNECTOR
FOR POOR CONNECTION
z
Turn the ignition switch off.
z
Disconnect PCM connector.
z
Inspect for poor connection
(such as damaged/pulled-out
pins, corrosion).
z
Are there any malfunction?
No Repair or replace suspected part, then go to Step 7.
Yes
Go to the next step.
6
INSPECT THE MAF SENSOR
z
Inspect the MAF sensor. (See
MASS AIR FLOW (MAF)
SENSOR INSPECTION
Yes
Replace the MAF/IAT sensor (See
MASS AIR FLOW
(MAF)/INTAKE AIR TEMPERATURE (IAT)
SENSOR REMOVAL/INSTALLATION [MZI-
3.7]
.), then go to Step 7.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:34 AM
Page 57
© 2005 Mitchell Repair Information Company, LLC.
