SOLENOID VALVE INSPECTION[GF4AX-EL]

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Resistance Inspection (On‐vehicle Inspection)

1.  Disconnect the negative battery cable.

2.  Remove the battery tray and battery.

3.  Remove the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION[L3].)

4.  Disconnect the coupler component connector.

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5.  Measure the resistance between the following terminals.

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•  If there is any malfunction, inspect the ground, then perform the operating inspection.

ATF temperature: -40—160 °C {-40—320 °F}

Terminal

Solenoid valve

Resistance (ohm)
A
Shift solenoid A
11—27
B
Shift solenoid B
11—27
C
Shift solenoid C
11—27
D
TCC control
11—27
E
3-2 timing
11—27
G
Pressure control
9—18

6.  Connect the coupler component connector.

7.  Install the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION[L3].)

8.  Install the battery tray and battery.

9.  Connect the negative battery cable.


Operating Inspection (On‐vehicle Inspection)

1.  Disconnect the negative battery cable.

2.  Remove the battery tray and battery.

3.  Remove the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION[L3].)

4.  Disconnect the coupler component connector.

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Caution
•  Do not apply battery position voltage to each terminal for more than 3 s.
Note
•  Because the operation sound of the valves is small, perform inspection in a quiet place.

5.  Apply battery voltage to each terminal.

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6.  Verify that each control valve operates with a “click”.

•  If the “click” is not heard, replace the solenoid valve. (See SOLENOID VALVE REMOVAL/INSTALLATION[GF4AX-EL].)

7.  Connect the coupler component connector.

8.  Install the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION[L3].)

9.  Install the battery tray and battery.

10.  Connect the negative battery cable.


Resistance Inspection (Off‐vehicle Inspection)

1.  Remove the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION[GF4AX-EL].)

2.  Remove the solenoid valve(s).

3.  Measure the resistance of each solenoid valve individually.

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•  If not as specified, replace the solenoid valve. (See SOLENOID VALVE REMOVAL/INSTALLATION[GF4AX-EL].)
•  If the solenoid valve normal, inspect the wiring harness. (Solenoid valve—Coupler component)
Solenoid valve resistance
Shift solenoid A, B, C, TCC control solenoid valve, and 3-2 timing solenoid valve:
11—27 ohms
Pressure control solenoid: 9—18 ohms

4.  Install the solenoid valve(s).

5.  Install the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION[GF4AX-EL].)


Output Duty Inspection


Pressure control solenoid

1.  Connect the (+) terminal of a dwell meter to terminal 91 at the PCM and the (-) terminal to a ground. Set the dwell meter selector to the 4 cylinder position.

2.  Apply parking brake and use wheel chocks at the front and rear of the wheels.

3.  Start the engine.

4.  Depress the brake pedal firmly.

5.  Shift the selector lever to D range.

Caution
•  If the accelerator pedal is depressed for longer then 5 s while the brake pedal is depressed, the transaxle could be damaged. Therefore, do Step 6 within 5 s of each other.
Note
•  The dwell meter indicates the OFF duty ratio.

6.  Depress the accelerator pedal slowly and verify that the duty ratio charges as shown in the graph.

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•  If not as specified, inspect the pressure control solenoid. (See Resistance Inspection (On‐vehicle Inspection).)