Mazda CX-9 Grand Touring 2009 Manual page 1179

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Turn the ignition switch off.
Inspect continuity between MAF sensor
terminal C (wiring harness-side) and
7
PCM terminal 1AJ (wiring harness-
side).
Is there continuity?
INSPECT MAF SENSOR
Inspect the MAF sensor. (See MASS
8
AIR FLOW (MAF) SENSOR
INSPECTION [MZI-3.7] .)
Is there any malfunction?
INSPECT FOR CORRECT PCM
OPERATION
Disconnect all the PCM connectors.
Visually inspect for:
Pushed out pins
9
Corrosion
Connect all the PCM connectors and
verify that they seat correctly.
Retrieve DTCs using the M-MDS.
Is the PENDING CODE for this DTC
present?
VERIFY TROUBLESHOOTING OF DTC
P1101 HAS BEEN COMPLETED
Verify that all disconnected connectors
reconnected.
Clear DTC from memory using M-MDS.
10
Start engine.
Perform "KOEO/KOER self-test" (See
KOEO/KOER SELF TEST [MZI-
3.7].)
Is same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Perform "AFTER REPAIR
11
PROCEDURE". (See AFTER REPAIR
PROCEDURE [MZI-3.7].)
Are any DTC present?
2008 Mazda CX-9 Grand Touring
Yes Go to the next step.
Repair or replace suspected part, then go to
No
Replace the MAF/IAT sensor, then go to Step
Yes
10.
No
Yes Go to the next step.
No The system is correctly. Go to the next step.
Replace PCM, then go to the next step. (See
Yes PCM REMOVAL/INSTALLATION [MZI-
3.7] .)
No
Go to the applicable DTC inspection. (See
Yes
DTC TABLE [MZI-3.7].)
No
Step 10.
Go to the next step.
Go to the next step.
Troubleshooting completed.