Chrysler RAM TRUCK 2500 1994 Service Manual page 531

8W - 2 WIRING DIAGRAMS
•
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18
LB/YL*
10) ( 8
© n r ©
5 1
5 9
10 8
LI
FRONT
OF
ENGINE
0
. 6
7 3
2
T
J948W-20
Fig. 3 Secondary Ignition Wiring 8.0L Engine
Diagram sheets show all information relating to
the system. This includes feeds, grounds, switch in­
ternal circuity, connectors, splices, and pin identifica­
tion for controllers and modules. A l l connectors,
switches, and relays are shown i n the at rest position
with the ignition switch removed and the doors
closed.
In certain instances a wire may be referenced to
another sheet. When this happens, the wire will be
identified as to where i t is going.
The index used for the diagrams is located at the
beginning of the diagrams. I t covers all systems
shown i n the diagrams and is i n alphabetical order.
WIRE CODE IDENTIFICATION
Each wire shown i n the diagrams contains a code
(Fig. 4) which identifies the main circuit, part of the
main circuit, gauge of wire, and color. The color is
shown as a two letter code which can be identified by
referring to the Wire Color Code Chart (Fig. 5). I f the
wire has a tracer and i t is a standard color an aster­
isk will follow the main wire color. I f the tracer is
non-standard the main wire color will have a slash (/)
after i t followed by the tracer color.
CIRCUIT IDENTIFICATION
A l l circuits i n the diagrams use an alpha/numeric
code to identify the wire and its function. To identify
which circuit code applies to a system, refer to the
Circuit Identification Code Chart. This chart shows
the main circuits only and does not show the second­
ary codes that may apply to some models.
LOCATING A SYSTEM OR COMPONENT
To locate a system or component i n the diagrams,
refer to the alphabetical index at the front of the di­
agrams. Determine the diagram sheet number. Sheet
numbers are located at the lower right or left hand
corner of each sheet. Page numbers at the top of
the page do not apply to diagram sheets.
COLOR O F WIRE
(Light Blue w i t h Yellow Tracer)
. G A U G E O F WIRE
(18 G a u g e )
PART O F AAAIN CIRCUIT
(Varies Depending o n Equipment)
AAAIN CIRCUIT IDENTIFICATION
918W-16
Fig. 4 Wire Color Code Identification
C O L O R
CODE
C O L O R
S T A N D A R D
TRACER
C O L O R
C O L O R
CODE
C O L O R
S T A N D A R D
TRACER
CODE
BL BLUE
WT OR ORANGE BK
BK
BLACK WT PK
PINK B K O R WT
BR BROWN
WT RD RED WT
DB DARK
BLUE
WT TN TAN WT
D G
DARK
GREEN
WT VT VIOLET WT
GY GRAY BK
WT
WHITE BK
LB LIGHT
BLUE
BK YL YELLOW BK
LG LIGHT
GREEN
BK
*
WITH TRACER
918W-136
Fig. 5 Wire Color Code Chart
The diagram index identifies the main system and
all components that relate to that system. There are
also sections of the index that identify specific com­
ponents only (for example modules, lamps, etc.). Re­
fer to a components name i n the index i f you are
unclear as to what a system may be called.
Diagram pages are arranged starting with the bat­
tery and fuses. Then working into charging, starting,
and ignition systems. After this they start at the
front of the vehicle and work to rear. The diagrams
end with connector identification pages.
COMPONENT IDENTIFICATION
l b find a components location on the vehicle refer
to the wiring and components section index. This sec­
tion shows the wire harness routing and the compo­
nents location i n the vehicle. When using this section