Troubleshooting Wiring Problems - Chrysler 1998 Viper RT/10 Owner's Manual

8W -
01 -10
8W - 01 GENERAL INFORMATION
S R
D I A G N O S I S A N D T E S T I N G
(Continued)
(3) Supply power to the fuse by t u r n i n g O N the
ignition switch or re-connecting the battery.
(4) Start connecting the items i n the fuse circuit
one at a time. W h e n the fuse blows the circuit w i t h
the short to ground has been isolated.
T E S T I M G FOR A V O L T A G E DROP
(1) Connect the positive lead of the voltmeter to
the side of the circuit closest to the battery (Fig. 8).
(2) Connect the other lead of the voltmeter to the
other side of the switch or component.
(3) Operate the item.
(4) The voltmeter w i l l show the difference i n volt-
age between the two points.
r
JDL
+
948W-196
Fig. 8 Testing for Voltage Drop
TROUBLESHOOTING WIRING PROBLEMS
When troubleshooting w i r i n g problems there are
six steps w h i c h can aid i n the procedure. The steps
are listed and explained below. Always check for non-
factory items added to the vehicle before doing any
diagnosis. I f the vehicle is equipped w i t h these items,
disconnect t h e m to verify these add-on items are not
the cause of the problem.
(1) Verify the problem.
(2) Verify any related symptoms. Do this by per-
forming operational checks on components t h a t are
i n the same circuit. Refer to the w i r i n g diagrams.
(3) Analyze the symptoms. Use the w i r i n g dia-
grams to determine w h a t the circuit is doing, where
the problem most likely is occurring and where the
diagnosis w i l l continue.
(4) Isolate the problem area.
(5) Repair the problem.
(6) Verify proper operation. For this step check for
proper operation of a l l items on the repaired circuit.
Refer to the w i r i n g diagrams.
S E R V I C E P R O C E D U R E S
WIRING REPAIR
When replacing or repairing a wire, i t is i m p o r t a n t
t h a t the correct gage be used as shown i n the w i r i n g
diagrams. The wires must also be held securely i n
place to prevent damage to the insulation.
(1) Disconnect battery negative cable
(2) Remove 1 inch of insulation from each end of
the wire.
(3) Place a piece of heat s h r i n k t u b i n g over one
side of the wire. Make sure the t u b i n g w i l l be long
enough to cover and seal the entire repair area.
. (4) Spread the strands of the wire apart on each
p a r t of the exposed wire (example 1). (Fig. 9)
(5) Push the two ends of wire together u n t i l the
strands of wire are close to the insulation (example
2) (Fig. 9)
(6) Twist the wires together (example 3) (Fig. 9)
(7) Solder the connection together using rosin core
type solder only. D o n o t use a c i d c o r e solder.
(8) Center the heat shrink t u b i n g over the j o i n t ,
and heat using a heat gun. Heat the j o i n t u n t i l the
t u b i n g is t i g h t l y sealed and sealant comes out of both
ends of the tubing.
(9) Secure the wire to the existing ones to prevent
chafing or damage to the insulation
(10) Connect battery and test a l l affected systems.
918W-20
Fig. 9 Wire Repair