SOLENOID VALVE INSPECTION [FN4A-EL]

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Caution
•  Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it.
•  Do not damage the terminals.

On-Vehicle Inspection

1.  Perform the following procedures.

(1)  Disconnect the negative battery cable.
(2)  Disconnect the coupler component connector.
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2.  Measure the resistance between the coupler component terminals.

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•  If there is any malfunction, inspect the coupler component for continuity.
•  If coupler component has no malfunction, perform the “Off-Vehicle Inspection“. (See Off-Vehicle Inspection.)

Solenoid valve specification

Solenoid valve

Terminal

Resistance (ohm)
Pressure control solenoid
D—I
2.4—7.3
Shift solenoid A
A—GND
1.0—4.2
Shift solenoid B
C—GND
1.0—4.2
Shift solenoid C
G—GND
1.0—4.2
Shift solenoid D
B—GND
10.9—26.2
Shift solenoid E
F—GND
10.9—26.2


Operating Inspection

Caution
•  Do not apply battery position voltage to terminals for more than three seconds.
Note
•  Because the operation sound of the valves is small, perform inspection in a quiet place.

1.  Perform the following procedures.

(1)  Disconnect the negative battery cable.
(2)  Disconnect the coupler component connector.
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2.  Apply battery positive voltage to terminals A, B, C, F or G and battery negative voltage to GND, and verify that operating sound is heard from solenoid.

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•  If the operation sound is not heard, inspect the coupler component for continuity.
•  If coupler component has no malfunction, perform the “Off-Vehicle Inspection“. (See Off-Vehicle Inspection.)

3.  Apply battery positive voltage to terminal D and battery negative voltage to terminal I, and verify that operating sound is heard from solenoid.

•  If the operation sound is not heard, inspect the coupler component for continuity.
•  If coupler component has no malfunction, perform the “Off-Vehicle Inspection“. (See Off-Vehicle Inspection.)


Off-Vehicle Inspection

1.  Measure the resistance between the solenoid valve terminals.

•  If there is any malfunction, replace the solenoid valve. (See SOLENOID VALVE REMOVAL/INSTALLATION [FN4A-EL].)

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Pressure control solenoid specification
2.4—7.3 ohms
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Shift solenoid A, B, C specification
1.0—4.2 ohms
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Shift solenoid D, E specification
10.9—26.2 ohms