Service Manual

627333-A 6-7
Electrical Sysem
ELECTRICAL SYSEM
DESCRIPTION
Manual has been written as an aid in troubleshooting
problems that may occur in machine CAN bus electrical
system. Manual is arranged in order or error codes with
some additional sections following for circuits that are
not associated with a code.
REQUIREMENTS
This manual is to be used by a qualified technician with
basic knowledge of electrical systems.
Technician must have a multimeter and experience in
using the meter.
Technician must have proper tooling and repair
supplies for various connectors described throughout
this manual.
IMPORTANT: CAN bus system must be rebooted
connection has been altered. This is
accomplished by disconnecting battery with
negative cable disconnect assembly located in
battery box. Often problems are fixed by
simply rebooting.
DEFINITION
FIG. 1: CAN (Controller Area Network) is a method of
communication which allows a large amount of data to
be transferred through two which wires. A CAN network
is similar to a computer network, using a server(s)
(master module), and terminals (I/O Input / Output
interface modules) to communicate in a controlled and
standardized binary code. Use of a CAN network
allows greatly reduced amount of wiring in many
electrical circuits.
Machine chassis and system will use CAN bus for
following functions:
1. All lighting circuits;
2. Sensors;
• Air Pressure;
• Fuel Level;
• Hydraulic Level;
• Radar.
3. Engine;
4. Transmission;
5. Drive lever.
FIG. 1
Q000084S