Specifications

Power Train Testing and Adjusting

Electric Control System Tests

Tools Needed

Digital Multimeter 1

NOTE : Refer to Schematic.

Checks on the transmission directional control

electrical circuit can be done with a Digital Multimeter.

All voltage checks are made at the wiring harness

connectors with the ignition switch ON, DO NOT start

the engine. All continuity checks are done with the

ignition switch OFF.

A beginning check of the direction control system

should be performed before testing the individual

components and wiring

harness. When the direction solenoids are energized

they become magnetized. By holding a metal

screwdriver next to the solenoids it can be

determined whether they are energized or not.

Turn the ignition switch ON, DO NOT start the engine.

Release the parking brake. Place the

direction control switch in forward and check the

forward solenoid for magnetism. Do the same for the

reverse direction.

z If the solenoids didn’t energize begin testing the

control system with step 1.

z If the solenoids did energize, go to step 10.

Power To Directional Control Switch Check

1. Put the directional control lever in neutral. Remove

the cover from the front side of the steering

support assembly.

2. Disconnect harness connector (2) from directional

control switch connector(1).

Directional Control Switch Connector

(1) Directional Control Switch Connector.

(2) Harness Connector.

3. Engage the parking brake and turn the ignition

switch ON, DO NOT start the engine. Put the

multimeter on the 20 volt range.

Power To Directional Control Switch Check

(2) Harness Connector.

4. Put the (-) probe on a good ground. Put the (+)

probe on socket 1 of harness connector (2).

a. If the indication is battery volts, do Step 5.

b. If the indication is 0 volts, check the

Forward/Reverse fuse (No.3) located in the fuse

box and check the connecting wires for continuity.