Defender 90 (LD) V8-4.0L (1997)
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All components are identified by a letter followed by an arbitrary number assigned to the component. The letter assigned to the component indicates the
type of component.
B
Bulbs, Heated Screens, Mirror Demisters, Cigar Lighters, and Heated Washer Jets
K
Relays, Solenoids, Speakers, and Resistors
M
Motors
P
Fuse Boxes and Fusible Links
X
Switches and Sensors
Z
Electronic Control Units, Modules, Shields, Diodes, and Capacitors
Wire Colors
All wires are identified by letters which indicates a certain color. Wire color and size will only be shown once if it does not change throughout the
circuit. The following chart explains the wire color abbreviations.
Wire Color Chart
B -
Black
G -
Green
K -
Pink
L
-
Light
N -
Brown
O -
Orange
P
-
Purple
R -
Red
S
-
Grey
U -
Blue
W -
White
Y -
Yellow
Previous And Next Arrows
Schematic pages which follow another schematic page of the same chapter will have an arrow in the upper left had corner. There is no arrow on the first
schematic page of a chapter. Schematic pages which are followed by another schematic page will have an arrow in the lower right hand comer. If the
page is the last page of the chapter, there will be a square instead of an arrow.
Circuit Qualifiers
Certain abbreviations are used throughout the Electrical Troubleshooting Manual as circuit qualifiers The following list explains all abbreviations used
as qualifiers in the Circuit Diagrams.
ABS
Anti-Lock Braking System
CPU
Central Processing Unit
LHD
Left hand Drive
RHD
Right hand Drive
LWB
Long Wheel Base
SWB
Short Wheel Base
NAS
North American Spec.
MFI-V8
Multiport Fuel Injection (MFI-V8)
A/C
Air Conditioning
Switch Positions
Certain abbreviations are used throughout the Electrical Troubleshooting Manual as Switch Position notes. The following list explains all abbreviations
used as Switch Position notes in the Circuit Diagrams.
< 100°
Less Than 100°
> 100°
More than 100°
