Mazda CX-9 Grand Touring 2007 Manual page 399

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
INFORMATION AVAILABILITY
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related Service Bulletins
available?
3 INSPECT MAF SENSOR
CONNECTOR FOR POOR
CONNECTION
Turn the ignition switch off.
Disconnect the MAF/IAT sensor
connector.
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
Are there any malfunction?
4 INSPECT POWER SUPPLY
CIRCUIT FOR OPEN CIRCUIT
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between
MAF sensor terminal A and body
ground.
Is the voltage B+?
5 INSPECT PCM CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
Disconnect PCM connector.
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
Are there any malfunction?
6 INSPECT MAF SENSOR SIGNAL
CIRCUIT FOR OPEN CIRCUIT
Remove PCM with PCM
connector connected.
Inspect for continuity between the
following circuits:
2007 Mazda CX-9 Grand Touring
No
Yes
No
Yes
No
Yes
No
Yes
No
the available Service Bulletins.
If the vehicle is not repaired, go to
the next step.
Go to the next step.
Repair or replace suspected part, then go to
Step 10.
Go to the next step.
Go to the next step.
Repair or replace suspected part, then go to
Step 10.
Repair or replace suspected part, then go to
Step 10.
Go to the next step.
Go to the next step.
Repair or replace suspected part, then go to
Step 10.