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.

On-Vehicle Inspection

1.  Perform the following procedures.

(1)  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].)
(2)  Remove the front under cover No.2. (See FRONT UNDER COVER No.2 REMOVAL/INSTALLATION.)
(3)  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 positive voltage to terminals for more than 3 s.
Note
•  Because the operation sound of the solenoid valve is small, perform inspection in a quiet place.

1.  Perform the following procedures.

(1)  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].)
(2)  Disconnect the coupler component connector.
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2.  Apply battery positive voltage to the coupler component terminals A, B, C, F or G and battery negative voltage to GND, and verify that operating sound is heard from solenoid valve.

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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 the coupler component terminal D and battery negative voltage to terminal I, and verify that operating sound is heard from solenoid valve.

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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.)


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