Mazda CX-9 Grand Touring 2009 Manual page 1217

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
INSPECT PSP SWITCH CONNECTOR
FOR POOR CONNECTION
Turn the ignition switch off.
3
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT PSP SWITCH CIRCUIT FOR
SHORT TO GROUND
Turn the ignition switch off.
4
Inspect for continuity between PSP
switch terminal A (wiring harness-side)
and body ground.
Is there continuity?
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
5
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT PSP SWITCH CIRCUIT FOR
OPEN CIRCUIT
Inspect for continuity between PSP
6
switch terminal A (wiring harness-side)
and PCM terminal 21 (wiring harness-
side)
Is there continuity?
INSPECT FOR CORRECT PCM
OPERATION
Disconnect all the PCM connectors.
Visually inspect for:
7
Pushed out pins
Corrosion
Connect all the PCM connectors and
verify that they seat correctly.
Retrieve DTCs using the M-MDS.
2008 Mazda CX-9 Grand Touring
Repair or replace suspected part, then go to
Yes
Step 8.
No
Repair or replace suspected part, then go to
Yes
Step 8.
No
Repair or replace suspected part, then go to
Yes
Step 8.
No
Yes Go to the next step.
Repair or replace suspected part, then go to
No
Yes Go to the next step.
No The system is correctly. Go to the next step.
Go to the next step.
Go to the next step.
Go to the next step.
Step 8.