Mazda CX-9 Grand Touring 2009 Manual page 1403

1. Verify the clicking sound of the cooling fan relay when the ignition switch is turned from the
off to the ON position.
2. If there is no the clicking sound, inspect the cooling fan relay for an open circuit between the
ignition switch and the cooling fan relay.
If there is a clicking sound, go to the next step.
Inspect the following parts in the indicated order in accordance with fan operation conditions.
Cooling fans do not operate
Open circuit between the fan control module and the cooling fan relay
Open circuit between fan control module and ground
Poor connection of the fan control module connector
Fan control module (See FAN CONTROL MODULE INSPECTION [MZI-3.7] .)
Cooling fan motor No.1 does not operate
Open or short to ground circuit between the fan control module and cooling fan motor No.1
Poor connection of the fan control module connector or cooling fan motor No.1 connector
Cooling fan motor No.1 (See FAN MOTOR INSPECTION [MZI-3.7] .)
Fan control module (See FAN CONTROL MODULE INSPECTION [MZI-3.7] .)
Cooling fan motor No.2 does not operate
Open or short to ground circuit between the fan control module and the cooling fan motor No.2
Poor connection of the fan control module connector or the cooling fan motor No.1 connector
Cooling fan motor No.2 (See FAN MOTOR INSPECTION [MZI-3.7] .)
Fan control module (See FAN CONTROL MODULE INSPECTION [MZI-3.7] .)
VARIABLE VALVE TIMING CONTROL SYSTEM OPERATION INSPECTION
When idling cannot be continued
NOTE:
Inspect for each bank
1. Remove the OCV and verify that the spool valve is at maximum retard position.
If the spool valve is stuck in advance direction, replace the OCV. (See OIL CONTROL VALVE
(OCV) REMOVAL/INSTALLATION [MZI-3.7] .)
2. Connect the OCV.
3. Turn the ignition switch to ON position.
4. Verify that the spool valve is at max. retard position.
If the spool valve is stuck in advance direction, inspect the following:
Short circuit in harnesses or connectors between the OCV and the PCM.
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9