Mazda CX-9 Grand Touring 2009 Manual page 1071

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Turn the ignition switch off.
Inspect for continuity between
6
purge solenoid valve control
terminal B and body ground.
Is there continuity?
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
Disconnect PCM connector.
7
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
Is there any malfunction? v
INSPECT PURGE SOLENOID
VALVE CONTROL CIRCUIT FOR
OPEN CIRCUIT
Turn the ignition switch off.
8
Inspect continuity between purge
solenoid valve terminal B and PCM
terminal 1BC.
Is there continuity?
INSPECT PURGE SOLENOID
VALVE
Inspect the purge solenoid valve.
9
(See PURGE SOLENOID
VALVE INSPECTION [MZI-
3.7] .)
Is there any malfunction?
VERIFY TROUBLESHOOTING OF
DTC P0443 COMPLETED
Make sure to reconnect all
disconnected connectors.
Clear DTC from PCM memory
10
using M-MDS.
Perform the "KOEO or KOER self-
test" using the M-MDS. (See
KOEO/KOER SELF TEST
[MZI-3.7].)
Is the PENDING CODE same DTC
2008 Mazda CX-9 Grand Touring
Step 10.
No
Repair or replace suspected part, then go to Step
Yes
10.
No
Yes Go to the next step.
Repair or replace suspected part, then go to the
No
Replace purge solenoid valve (See PURGE
SOLENOID VALVE
Yes
REMOVAL/INSTALLATION [MZI-3.7] .), then
go to Step 10.
No
Replace PCM, then go to the next step. (See PCM
Yes
REMOVAL/INSTALLATION [MZI-3.7] .)
No
Go to the next step.
Go to the next step.
Step 10.
Go to the next step.
Go to the next step.