Dodge RAM TRUCK 1500 1995 Service Manual page 527

BR
8W-01 GENERAL INFORMATION—WIRING D1AGRA1S 8W - 01 - 1
GENERAL INFORMATION—WIRING DIAGRAMS
INDEX
page
Circuit Identification . . *. . . . . . . . . . . 1
Connector and Terminal Replacement 7
Connector Replacement
6
Connectors 2
Diode Replacement 8
Electrostatic Discharge (ESD) Sensitive Devices . . . 2
Intermittent and Poor Connections 4
Notes, Cautions, and Warnings 1
Symbols
2
NOTES, CAUTIONS, and WARNINGS
Throughout this group additional important infor­
mation is presented in three ways; Notes, Cautions,
and Warnings.
NOTES are used to help describe how switches or
components operate to complete a particular circuit.
They are also used to indicate different conditions
that may appear on the vehicle. For example, an
up-to and after condition.
CAUTIONS are used to indicate information that
could prevent making an error that may damage the
vehicle.
WARNINGS provide information to prevent per­
sonal injury and vehicle damage. Below is a list of
general warnings that should be followed any time a
vehicle is being serviced.
ALWAYS WEAR S A F E T Y G L A S S E S FOR E Y E PRO­
TECTION.
USE SAFETY STANDS ANYTIME A P R O C E D U R E
R E Q U I R E S B E I N G UNDER A VEHICLE.
B E S U R E THAT THE IGNITION SWITCH ALWAYS IS
IN THE O F F POSITION, U N L E S S THE P R O C E D U R E
R E Q U I R E S IT TO B E ON.
S E T THE PARKING B R A K E W H E N WORKING ON
ANY VEHICLE. AN AUTOMATIC TRANSMISSION
SHOULD B E IN PARK. A MANUAL TRANSMISSION
SHOULD B E IN NEUTRAL.
O P E R A T E THE ENGINE ONLY IN A WELL-VENTI­
LATED A R E A .
K E E P AWAY FROM MOVING PARTS W H E N THE E N ­
GINE IS RUNNING, E S P E C I A L L Y THE FAN AND
B E L T S .
page
Take Outs 2
Terminal Replacement 8
Terminal/Connector Repair—Molex Connectors . . . . 6
Troubleshooting Tests 4
Troubleshooting Tools 4
Troubleshooting Wiring Problems 5
Wire Code Identification 1
Wiring Repair 6
TO P R E V E N T S E R I O U S B U R N S , AVOID CONTACT
WITH HOT PARTS S U C H A S THE RADIATOR, E X ­
HAUST MANIFOLD(S), TAIL P I P E , CATALYTIC CON­
V E R T E R , AND M U F F L E R .
DO NOT A L L O W FLAME OR S P A R K S NEAR THE
BATTERY. G A S E S A R E ALWAYS P R E S E N T IN AND
AROUND THE BATTERY.
ALWAYS REMOVE RINGS, WATCHES, L O O S E
HANGING J E W E L R Y , AND LOOSE CLOTHING.
WIRE CODE IDENTIFICATION
Each wire shown in the diagrams contains a code
(Fig. 1) 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. 2).
A 2 18 LB/YL
I
COLOR OF WIRE
(Light Blue with Yellow Tracer)
GAUGE OF WIRE
(1 8 Gauge)
I PART OF MAIN CIRCUIT
(Varies Depending on Equipment)
— MAIN CIRCUIT IDENTIFICATION
J958W-37
Fig. 1 Wire Color Code Identification
CIRCUIT IDENTIFICATION
All circuits in the diagrams use an alpha/numeric
code to identify the wire and its function (Fig. 3). To