Are all items normal?
10
Connect the M-MDS to the DLC-2.
Turn the ignition switch to the ON
position (Engine off).
Retrieve any DTCs.
Are there any DTCs displayed?
Yes
DTC is displayed:
z
Go to the appropriate DTC inspection.
(See
DTC TABLE [MZI-3.7]
.)
Communication error message is
displayed:
Inspect for the following:
z
Open circuit in wiring harness between
main relay and PCM terminal 1 BO or
1BJ
z
Open main relay GND circuit
z
Open or short circuit in wiring harness
between the DLC-2 and PCM terminal
1BL or 1BG
z
Main relay is stuck open.
z
Open or poor GND circuit (PCM
terminal 1D, 1J, 1BP, 1BK)
z
Poor connection of vehicle body GND
No
No DTC is displayed:
Go to the next step.
11
Connect the M-MDS to the DLC-2.
Access the APP1 and APP2, APP3
PIDs. Crank the engine with accelerator
pedal released.
Are the APP1 and APP2, APP3 PIDs
indicating that the accelerator pedal is in
the released position?
Yes
Go to the next step.
No
Inspect for the following:
z
APP sensor
z
Wiring harnesses and connectors for
following:
{
PCM terminal 1 AC-APP sensor
terminal B
{
PCM terminal 1 AH-APP sensor
terminal C
{
PCM terminal 1Y-APP sensor
terminal D
{
PCM terminal 1AK-APP sensor
terminal E
{
PCM terminal 1BA-APP sensor
terminal F
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:10:05 AM
Page 37
© 2005 Mitchell Repair Information Company, LLC.
