2
AVAILABILITY
z
Verify related Service
Bulletins and/or on-line repair
information availability.
z
Is any related Service Bulletins
available?
Yes
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 10.
No
Go to the next step.
4
INSPECT POWER SUPPLY
CIRCUIT FOR OPEN CIRCUIT
z
Turn the ignition switch to the
ON position (Engine off).
z
Measure the voltage between
MAF sensor terminal A and
body ground.
z
Is the voltage B+?
Yes Go to the next step.
No
Repair or replace suspected part, then go to Step 10.
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?
Yes Repair or replace suspected part, then go to Step 10.
No
Go to the next step.
INSPECT MAF SENSOR
SIGNAL CIRCUIT FOR OPEN
CIRCUIT
z
Remove PCM with PCM
connector connected.
z
Inspect for continuity between
the following circuits:
Yes Go to the next step.
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 53
© 2005 Mitchell Repair Information Company, LLC.
