z
Inspect for continuity between the
following circuit:
{
PCV valve heater control
terminal B (wiring harness-
side) and PCM terminal
2BL (wiring harness-side)
{
PCV valve heater fitting B
(wiring harness-side) and
PCM terminal 2AU (wiring
harness-side)
z
Are there continuity?
No
Repair or replace suspected part, then go to
Step 10.
9
INSPECT PCV VALVE HEATER
CONTROL AND PCV VALVE
HEATER FITTING
z
Inspect the PCV valve heater
control and PCV valve heater
fitting.
(see
POSITIVE CRANKCASE
VENTILATION (PCV) VALVE
INSPECTION [MZl-3.5].
)
(see
POSITIVE CRANKCASE
VENTILATION (PCV) VALVE
HEATER FITTING
INSPECTION [MZI-3.5].
)
z
Is there any malfunction?
Yes
Replace the malfunctioning part, then go
to the next step.
No
Go to the next step.
10
VERIFY TROUBLESHOOTING OF
DTC P053A HAS BEEN
COMPLETED
z
Verify that all disconnected
connectors reconnected.
z
Clear the DTC from the PCM
memory using the M-MDS.
z
Perform the "KOEO or KOER
self-test" using the M-MDS.
(See
KOEO/KOER SELF TEST
[MZI-3.5]
.)
z
Is the PENDING CODE for the
DTC present?
Yes
Replace the PCM, then go to the next step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
3.5]
.)
No
Go to the next step.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:34 AM
Page 269
© 2005 Mitchell Repair Information Company, LLC.
