Mazda CX-9 Grand Touring 2009 Manual page 1201

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Connect all disconnected connectors
and hoses.
Perform the EVAP system leak test.
8
(See ENGINE CONTROL
SYSTEM OPERATION
INSPECTION [MZI-3.7] .)
Are the test results normal?
VERIFY TROUBLESHOOTING OF
DTC P1450 HAS BEEN COMPLETED
Verify that all disconnected
connectors are reconnected.
Turn the ignition switch to the ON
position (Engine off).
9
Clear the DTC from the PCM
memory using the M-MDS.
Start the engine and the perform
"EVAP system monitor drive cycle"
Retrieve DTCs using the M-MDS.
Is the PENDING CODE for this
DTC present?
VERIFY AFTER REPAIR
PROCEDURE
Perform "AFTER REPAIR
10
PROCEDURE".
(See AFTER REPAIR
PROCEDURE [MZI-3.7].)
Are any DTC present?
DTC P145E [MZI-3.7]
DTC P145E (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DTC P145E
DETECTION
CONDITION
2008 Mazda CX-9 Grand Touring
Yes Go to the next step.
No
Yes
No
Yes
No
PCV heater control circuit
This DTC sets when the PCM detects a PCV valve heater circuit malfunction.
Open circuit between PCV valve heater control terminal A and main relay
No.1
Open circuit between PCV valve heater fitting terminal A and main relay
No.1
Short to ground circuit between PCV valve heater control terminal B and
PCM terminal 2BL
Leakage still exists. Locate leak point and repair.
Repeat this step.
Replace the PCM, then go to the next step. (See
PCM REMOVAL/INSTALLATION [MZI-
3.7] .)
Go to the next step.
Go to the applicable DTC inspection. (See DTC
TABLE [MZI-3.7].)
Troubleshooting completed.