Mazda CX-9 Grand Touring 2009 Manual page 917

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
AVAILABILITY
Verify related Service
Bulletins and/or on-line repair
2
information availability.
Is any related Service Bulletins
available?
INSPECT MAF SENSOR
CONNECTOR FOR POOR
CONNECTION
Turn the ignition switch off.
Disconnect the MAF/IAT
3
sensor connector.
Inspect for poor connection
(such as damaged/pulled-out
pins, corrosion).
Are there any malfunction?
INSPECT POWER SUPPLY
CIRCUIT FOR OPEN CIRCUIT
Turn the ignition switch to the
ON position (Engine off).
4
Measure the voltage between
MAF sensor terminal A and
body ground.
Is the voltage B+?
INSPECT PCM CONNECTOR
FOR POOR CONNECTION
Turn the ignition switch off.
Disconnect PCM connector.
5
Inspect for poor connection
(such as damaged/pulled-out
pins, corrosion).
Are there any malfunction?
INSPECT MAF SENSOR
SIGNAL CIRCUIT FOR OPEN
CIRCUIT
Remove PCM with PCM
connector connected.
Inspect for continuity between
the following circuits:
2008 Mazda CX-9 Grand Touring
Service Bulletins.
Yes
If the vehicle is not repaired, go to the next step.
No
Yes Repair or replace suspected part, then go to Step 10.
No
Yes Go to the next step.
No Repair or replace suspected part, then go to Step 10.
Yes Repair or replace suspected part, then go to Step 10.
No
Yes Go to the next step.
Go to the next step.
Go to the next step.
Go to the next step.