Ventrac 4500P - TCM (Tractor Control Module) Explanation; Replacing Fuses (Power Relay Module); Replacing Fuses (Front Fuse Panel)

SERVICE
Service - 59
TCM (Tractor Control Module) Explanation
The tractor control module (A) is a sealed
A
computer-
ized device designed
to control the elec-
tronic safety related
functions of this
power unit. Both solid
state and mechanical
components are used
to ensure the safe,
reliable operation of
this machine.
This TCM monitors
the electronic circuits
necessary for the
engine, the starter, and the PTO to function. These
input circuits include the PTO switch, the neutral
switch, the parking brake switch, the ignition switch,
the seat switch, and the generator presence. The TCM
is programmed to allow the engine, the starter, or
the PTO to operate only when specic input criteria
are satised. The engine, the starter, and the PTO are
controlled by outputs from the TCM.
For additional information, refer to the TCM section of
the troubleshooting guide.
Replacing Fuses (Power Relay Module)
1. Turn the battery disconnect switch to the O
position.
2. Tilt the seat forward and fasten in place with the
seat prop.
A
B
3. Remove the
sealed fuse cap
from the power
relay module.
4. Identify and re-
move the defec-
tive fuse from
the socket.
Power Relay Module (J-Case Fuse)
Position Fuse Circuit
Top (A) 50 amp Key Switch, TCM
Bottom (B) 50 amp Rear Fuse Panel Supply
5. Insert a new fuse into the socket. Be sure the fuse
is the correct amperage or damage may occur to
the power unit.
6. Reinstall the sealed fuse cap and lower the seat
back down to the operating position.
7. Turn the battery disconnect switch to the On
position.
Replacing Fuses (Front Fuse Panel)
1.
A
Turn the battery disconnect
switch to the O position.
2. Remove the sealed cover (A)
from the fuse panel.
3. Identify and remove the defec-
tive fuse from the socket.
Front Fuse Panel (Mini Fuse)
Position Fuse Circuit
1 15 amp PTO
2 5 amp Gauges
3 5 amp Engine
4 15 amp Lights
5 10 amp Fuel Pump
6* 15 amp Work/Strobe Light
7* 10 amp Back-up / Horn / Directional
8 5 amp Tractor Control Module 1
9^ 10 amp Diesel Stop
10 15 amp
Tractor Control Module 2
*Optional accessory
^Diesel only
4. Insert a new fuse into the socket. Be sure the fuse
is the correct amperage or damage may occur to
the power unit.
5. Reinstall the sealed cover onto the fuse panel.
6. Turn the battery disconnect switch to the On
position.
https://www.tractormanualpdf.info/