WIRING DIAGRAM INFORMATION
HOW TO READ WIRING DIAGRAM
The electric circuit diagram and other electric informations contained
in this book use abbreviations, symbols, and numbers. This chapter
explains their meanings and how to read the circuit diagrams.
NOTE : Other detail electric information of chassis-cab, please refer to
the “NISSAN DIESEL MOTOR CO., LTD. SERVICE MANUAL”
Parts Abbreviation
The parts abbreviation indicates the name, location and condition of each
part, such as a switch, meter or light.
Circuit Connection
A circuit connection is indicated by lines showing the electric wires
connecting the electrical devices.
Wire Size and Color code
The number indicates the size of the wire (nominal sectional area of the
conductor, mm
2
), and the letter at the end of each number indicates the
color of the covering.
ABBREVIATION MEANINGS
ON Switch on
OFF Switch off
ACC Accessory
ST Start
RH Right hand
LH Left hand
AOH Air-over-hydraulic brake
TEMP Engine coolant temperature
W/L Warning light
I/L Indicator light
MAIN H. Main harness
CHASSIS H. Chassis harness
ENGINE H. Engine harness
TAIL H. Tail harness
FLOOR UPPER H. Floor upper harness
FLOOR H. Floor harness
BODY SIDE H. Body side harness
DOOR H. Door harness
ABBREVIATION MEANINGS
EXH Exhaust
IGN Ignition
M/G VALVE Magnetic valve
WAT Water
SW Switch
BATT Battery
SMJ Super multiple junction
C28
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