ignition coil terminal C (wiring
harness-side) and body ground.
z
Is the voltage
B+
?
No
Go to the next step.
6
INSPECT IGNITION COIL SIGNAL
CIRCUIT FOR SHORT TO
GROUND
z
Turn the ignition switch to the ON
position (Engine off).
z
Inspect continuity between
ignition coil terminal C (wiring
harness-side) and body ground.
z
Is there continuity?
Yes
Repair or replace suspected part, then go to
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?
Yes
Repair or replace suspected part, then go to
Step 10.
No
Go to the next step.
8
INSPECT IGNITION COIL SIGNAL
CIRCUIT FOR OPEN CIRCUIT
z
Inspect continuity between the
following circuits:
{
Ignition coil No.1 terminal
C (wiring harness-side) and
PCM terminal 2A (wiring
harness-side)
{
Ignition coil No.2 terminal
C (wiring harness-side) and
PCM terminal 2F (wiring
harness-side)
{
Ignition coil No.3 terminal
C (wiring harness-side) and
PCM terminal 2K (wiring
harness-side)
{
Ignition coil No.4 terminal
C (wiring harness-side) and
PCM terminal 2W (wiring
harness-side)
{
Ignition coil No.5 terminal
Yes
Go to the next step.
No
Repair or replace suspected part, then go to
Step 10.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:32 AM
Page 209
© 2005 Mitchell Repair Information Company, LLC.