FAN CONTROL MODULE INSPECTION [MZR-CD 2.2]SM2444671
FAN CONTROL MODULE INSPECTION [MZR-CD 2.2]

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1.Connect the M-MDS to the DLC-2.
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2.Start and warm up the engine.

3.Monitor the engine coolant temperature with the M-MDS.

4.Measure the voltage at terminal A of the fan control module connector (2 terminals) as shown in the table.
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• If not within the specification, inspect the input signals from the following parts.
― Crankshaft Position (CKP) sensor
― Engine Coolant Temperature (ECT) sensor
― Refrigerant pressure switch

Fan control module No.1, No.2 [A/C OFF]

Inspection

Result

Engine coolant temp. (°C {°F})

PID FAN DUTY

Voltage
100 {212.EN_UK}
approx. 30 %
approx. 4.11 V
100—106 {212—222}
30—70 %
4.11—9.6 V
106 {223.EN_UK}
approx. 70 %
approx. 9.6 V

Fan control module No.1, No.2 [A/C ON (Engine coolant temp. less than 98 °C {208 °F} and idling)]

Inspection

Result

PID COLP

Refrigerant pressure (MPa{kgf/cm2, psi})

PID FAN DUTY

Voltage
OFF
approx. less than 1.23 {12.5, 178}
approx. 40 %
approx. 5.49 V
ON
approx. more than 1.52 {15.5, 220}
approx. 65 %
approx. 8.94 V

5.If all the above parts are normal, replace the fan control module.