Shift Solenoid: Testing and Inspection
SOLENOID VALVE INSPECTIONResistance Inspection (On-Vehicle)
1. Disconnect the negative battery cable.
2. Disconnect the terminal component No. 1 connector.
3. Measure the resistance between the following terminals.
^ If not as specified, inspect each solenoid valve.
ATF temperature an 20°C (68°F)
4. Connect the terminal component No. 1 connector.
5. Connect the negative battery cable.
Operating Inspection (On-Vehicle)
1. Disconnect the terminal component No. 1 connector.
Caution:
^ Do not apply battery positive voltage to terminals for more than three seconds.
Note:
^ Because the operation sound of the valves is small, inspect in a quiet place.
2. Apply battery positive voltage to terminals A, B, C, D, E, F, G, H, I and battery negative voltage to GND, and verify that operating sound is heard from solenoid.
^ If the "click" is not heard, inspect the transaxle harness.
- If the transaxle harness is okay, perform the resistance inspection (off-vehicle inspection).
- If there is a problem, repair or replace the transaxle harness.
3. Connect the terminal component No. 1 connector.
Resistance Inspection (Off-Vehicle)
1. Remove each solenoid valve.
2. Measure the resistance of each solenoid valve individually.
^ If not specified, replace the solenoid valve.
^ If it is normal, replace the harness.
Pressure control solenoid, 2-4 brake solenoid valve, and high clutch solenoid valve
Resistance: 2.6 - 3.2 ohms (20°C {68°F})
Shift solenoid A, B. C, neutral shift solenoid valve, and reduction timing solenoid valve
Resistance: 14 - 18 ohms (20°C {68°F})
TCC solenoid valve
Resistance: 12 - 13.2 ohms (20°C {68°F})
3. Install each solenoid valve.