Mazda CX-9 Grand Touring 2009 Manual page 924

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Has FREEZE FRAME DATA been
1
recorded?
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
Verify related Service Bulletins
2
availability.
Is any related Service Bulletins
available?
VERIFY RELATED PENDING CODE
OR STORED DTC
3
Verify the related PENDING CODE or
stored DTCs.
Are other DTCs present?
INSPECT AIR SUCTIONING
BETWEEN MAF SENSOR AND TP
SENSOR
4
Inspect for major leaks, cracks and
openings between MAF sensor and
throttle body.
Are there any malfunction?
INSPECT MAF SENSOR CONNECTOR
FOR POOR CONNECTION
Turn the ignition switch off.
Disconnect the MAF/IAT sensor
5
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Are there any malfunction?
INSPECT MAF SIGNAL CIRCUIT FOR
SHORT TO POWER SUPPLY
Turn the ignition switch to the ON
position (Engine off).
6
Measure voltage between the following
terminals:
MAF sensor terminal C (wiring
harness-side) and body ground
MAF sensor terminal D (wiring
harness-side) and body ground
2008 Mazda CX-9 Grand Touring
Record FREEZE FRAME DATA on the repair
No
Perform repair or diagnosis according to
available Service Bulletins.
Yes
No
Go to appropriate DTC inspection. (See DTC
Yes
TABLE [MZI-3.7].)
No
Repair or replace the malfunctioning part, then
Yes
go to Step 10.
No
Repair or replace the malfunctioning part, then
Yes
go to Step 10.
No
Repair or replace the malfunctioning part, then
Yes
go to Step 10.
No
order, then go to next step.
If vehicle is not repaired, go to next step.
Go to next step.
Go to next step.
Go to next step.
Go to next step.
Go to next step.