Are the TP1, TP2 PID indicates the
closed throttle position?
z
TP sensor
z
Wiring harnesses and connectors
for following:
{
PCM terminal 2BO-TP
sensor terminal A
{
PCM terminal 2BR-TP
sensor terminal B
{
PCM terminal 2AD-TP
sensor terminal C
{
PCM terminal 2D-TP sensor
terminal D
{
PCM terminal 2AH-TP
sensor terminal E
{
PCM terminal 2Z-TP sensor
terminal F
12
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:
Go to appropriate DTC inspection.
(see
DTC TABLE [MZI-3.5]
.)
Communication error message is
displayed:
z
Inspect for the following: Open
circuit in wiring harness between
main relay and PCM terminal 1BO
or 1BJ
z
Open main relay GND circuit
z
Main relay is stuck open.
z
Open or short circuit in wiring
harness between the DLC-2 and
PCM terminals 1BL or 1BG
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.
13
Attempt to start engine at part throttle.
Does engine run smoothly at part
throttle?
Yes
Inspect electronic throttle control system
operation.
(See
ENGINE CONTROL SYSTEM
OPERATION INSPECTION [MZI-
3.5]
.)
No
Go to the next step.
14
Connect the M-MDS to the DLC-2.
Yes
Go to the next step.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Symptom Troubleshooting (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:27:37 AM
Page 26
© 2005 Mitchell Repair Information Company, LLC.
