1. Connect the M-MDS to the DLC-2.
2. Start and warm up the engine.
3. Monitor the engine coolant temperature with the M-MDS.
Fig. 25: Connecting M-MDS To DLC-2
Courtesy of MAZDA MOTORS CORP.
4. Measure the voltage at terminal A of the fan control module connector (2 terminals) as shown in the
table.
z
If not within the specification, inspect the input signals from the following parts.
Cylinder Head Temperature (CHT) sensor
Refrigerant pressure switch (middle)
Fig. 26: Identifying Fan Control Module Connector
Courtesy of MAZDA MOTORS CORP.
Single fan control module
SINGLE FAN CONTROL MODULE RESULT REFERENCE
Inspection
Result
Condition
A/C
Engine coolant temp.
IG SW ON or idling OFF Less than 96°C {205°F} 0 V (Fan stops.)
Idling
OFF 96-106°C {205-223°F}
4.11-10.29 V
Idling
ON
(1)
96-106°C {205-223°F}
Approx. 6.4 V
2008 Mazda CX-9 Grand Touring
2008 ENGINE Cooling System (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 9:57:25 AM
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© 2005 Mitchell Repair Information Company, LLC.
