6
z
Turn the ignition switch off.
z
Inspect for continuity between
purge solenoid valve control
terminal B and body ground.
z
Is there continuity?
Step 10.
No
Go to the next step.
7
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
z
Turn the ignition switch off.
z
Disconnect PCM connector.
z
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
z
Is there any malfunction? v
Yes Repair or replace suspected part, then go to Step
10.
No
Go to the next step.
8
INSPECT PURGE SOLENOID
VALVE CONTROL CIRCUIT FOR
OPEN CIRCUIT
z
Turn the ignition switch off.
z
Inspect continuity between purge
solenoid valve terminal B and PCM
terminal 1BC.
z
Is there continuity?
Yes Go to the next step.
No
Repair or replace suspected part, then go to the
Step 10.
9
INSPECT PURGE SOLENOID
VALVE
z
Inspect the purge solenoid valve.
(See
PURGE SOLENOID
VALVE INSPECTION [MZI-
3.7]
.)
z
Is there any malfunction?
Yes
Replace purge solenoid valve (See
PURGE
SOLENOID VALVE
REMOVAL/INSTALLATION [MZI-3.7]
.), then
go to Step 10.
No
Go to the next step.
10
VERIFY TROUBLESHOOTING OF
DTC P0443 COMPLETED
z
Make sure to reconnect all
disconnected connectors.
z
Clear DTC from PCM memory
using M-MDS.
z
Perform the "KOEO or KOER self-
test" using the M-MDS. (See
KOEO/KOER SELF TEST
[MZI-3.7]
.)
z
Is the PENDING CODE same DTC
Yes
Replace PCM, then go to the next step. (See
PCM
REMOVAL/INSTALLATION [MZI-3.7]
.)
No
Go to the next step.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:38 AM
Page 207
© 2005 Mitchell Repair Information Company, LLC.
