Overdrive Control (A140L/3S-FE)

Overdrive Control (A140L/3S-FE):

CIRCUIT

INSPECTION OF ELECTRIC CONTROL COMPONENTS
1. INSPECT O/D SOLENOID




a. Disconnect the solenoid connector.
b. Apply voltage between terminals 1 and 2.
At this time, confirm that a solenoid operation sound in heard.




c. Using an ohmmeter, measure the solenoid coil resistance between terminals 1 and 2.
Resistance: 13±2 ohm
d. Connect the solenoid connector.




e. Turn on the ignition switch and disconnect the thermo switch wire.
f. Confirm that the operation sounds of the solenoid can be heard if the O/D main switch is repeatedly turn on and off.
g. Turn off the ignition switch and connect the thermo switch wire.




2. INSPECT O/D MAIN SWITCH
a. Remove the console box.
b. Using an ohmmeter, measure the resistance between terminals 1 and 3.
- Switch ON - Resistance: Infinity ohm
- Switch OFF - Resistance: 0 ohm




3. INSPECT O/D OFF INDICATOR
a. Turn on the ignition switch.
b. Turn off the O/D main switch.
c. Check that the O/D OFF indicator lights.




4. INSPECT WATER THERMO SWITCH
a. Disconnect the thermo switch connector.
b. Using an ohmmeter, measure the resistance between terminal 1 and body ground.

Coolant temperature:
Below 43 °C (109 °F) 0 ohm
Above 55 °C (131°F) Infinity ohm

c. Connect the thermo switch connector.