JLG 1850SJ Service Manual - Manual (Page 373)

SECTION 7 - BASIC ELECTRICAL INFORMATION & ELECTRICAL SCHEMATICS
3121619 – JLG Lift – 7-13
7.6 WIRING HARNESS CONNECTOR LABELS
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