SECTION 7 - BASIC ELECTRICAL INFORMATION & ELECTRICAL SCHEMATICS
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7.8
WIRING HARNESS
Connector Labels
Connectors between harnesses are identified by the prefix “X”
and a sequentially assigned number. An optional suffix (letters
& numbers) may be added when multiple terminations occur
at one device or when there are optional connections.
Examples:
X25 connects to X25 in another harness.
X65A, X65B connect to different portions of one device
X163 connects to X163A in ANSI and X163B in CE machines
Component Labels
Every component on the vehicle has a unique identification. A
standard prefix letter is assigned according to the table below,
followed by a unique sequential number. An optional suffix
(letters & numbers) may be added when multiple terminations
occur at one device.
Terminals that are not loaded into connectors are considered
independent components and labeled in the same fashion.
Table 7-1. Wiring Harness Connector Labels
Component
Category
Label
Audible
Alarms
AH
Horns
Battery
Batteries
BT
Battery Terminals
Control Module
Ground
CO
LSS
Platform
Engine
Alternator
EC
Cold Start
Controller
Coolant Temp
Fuel Pump
Fuel Solenoid
Glow Plugs
Oil Pressure
Starter
Fuse & CB Fuse FC
Fuse
FC
Fusible Link
FC
Circuit Breaker
CB
Gauge & Display
Board
GD
Cluster
Hour meter
LMI
Speedometer
Inline
Resistor
R
Diode
D
Joystick & Steering
Electronic
JS
Hydraulic
Lights
Dome
LB
Headlights
Simple
Taillights
Membrane Panel
MP
Miscellaneous
Radio
MS
Speakers
Splice Blocks
T-Connectors
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