Electrical Component Inspection

INSPECTION OF A/T CONTROL UNIT




^ Measure voltage between each terminal and terminal (15) or (48) by following "A/T CONTROL UNIT INSPECTION TABLE".




^ Pin connector terminal layout.

1 Of 3:

2 Of 3:

3 Of 3:

A/T Unit Control Inspection Table

OVERDRIVE SWITCH








^ Check continuity between two terminals.

THROTTLE POSITION SWITCH (Idle Position)
^ Refer to Electrical Components Inspection. Throttle Position Sensor Circuit Check

INHIBITOR SWITCH










1. Check continuity between terminals (1) and (2) and between terminals (3) and (4), (5), (6), (7), (8), (9) while moving selector lever through each position.




2. If NG, check again with manual control linkage disconnected from manual shaft of A/T assembly. Refer to step 1.
3. If OK on step 2, adjust manual control linkage.




4. If NG on step 2, remove inhibitor switch from A/T and check continuity of inhibitor switch terminal. - Refer to step 1.
5. If OK on step 4, adjust inhibitor switch. - Refer to "ON- VEHICLE SERVICE". On Vehicle Service
6. If NG on step 4, replace inhibitor switch.

REVOLUTION SENSOR








^ Check resistance between terminals (1), (2) and (3).

FLUID TEMPERATURE SENSOR







^ Check resistance between two terminals while changing temperature as shown in the first image.

TORQUE CONVERTER CLUTCH SOLENOID VALVE




^ Check resistance between two terminals.
- Resistance: Torque converter clutch solenoid valve 10 - 20 ohms

3-UNIT SOLENOID ASSEMBLY (Shift solenoid valves A, B and overrun clutch solenoid valve) & LINE PRESSURE SOLENOID VALVE







^ Check resistance between terminals of each solenoid.

DROPPING RESISTOR




^ Check resistance between two terminals.
- Resistance: 11.2 - 12.8 ohms