5
{
APP2
{
APP3
{
ECT
{
MAF
{
TP_REL
{
VSS
z
Are the PIDs normal?
No
Inspect the malfunctioning part according to
the inspection results. Then go to Step 13.
6
VERIFY CURRENT INPUT SIGNAL
STATUS UNDER FREEZE FRAME
DATA CONDITION
z
Connect the M-MDS to the DLC-2.
z
Verify the following PIDs under the
FREEZE FRAME DATA condition.
(See
PCM INSPECTION [MZI-3.7]
.)
{
APP1
{
APP2
{
APP3
{
ECT
{
MAF
{
TP_REL
z
Are the PIDs normal?
Yes Go to the next step.
No
Inspect the malfunctioning part according to
the inspection results. Then go to Step 13.
7
INSPECT INTAKE AIR SYSTEM FOR
EXCESSIVE AIR SUCTION
z
Visually inspect for looseness, cracks or
damage to the hoses in the intake-air
system.
z
Is there any malfunction?
Yes
Repair or replace the malfunctioning part, then
go to Step 13.
No
Go to the next step.
8
VERIFY CURRENT INPUT SIGNAL
STATUS OF MAF SENSOR
z
Connect the M-MDS to the DLC-2.
z
Start the engine.
z
Access the MAF PID.
z
Verify that the MAF PID changes
quickly according to the engine speed.
z
Is the PID normal?
Yes Go to the next step.
No Replace the MAF/IAT sensor, then go to Step
13.
INSPECT FRONT HO2S
z
Inspect the front HO2S (RH) (with
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:43 AM
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© 2005 Mitchell Repair Information Company, LLC.