Chassis Wiring Harness; Main Harness Connector; Fusible Link Replacement (Chassis Wiring Harness) - Jeep 1979 CJ-5 Technical & Service Manual

3R-14 LIGHTING SYSTEMS
C H A S S I S W I R I N G H A R N E S S
P a p P a p
Circuit Breakers 3R-16 Specifications 3R-17
Fuse Panel 31-18 Wiring Harness Components 3R-14
Ignition Switch 3R-15
WIRING HARNESS COMPONENTS
Main Harness Connector
All models have a main wiring harness connector lo-
cated at the left upper corner of the dash panel. This
connector is made up of the engine and forward lamp
harness at the engine compartment and the fuse and
i n s t r u m e n t panel harness at the passenger com-
partment side.
The connector can be removed from the dash panel by
removing the center bolt from the engine compartment
side and the two attaching screws from the driver's side.
Be careful not to bend the male spade terminals when
removing or installing the connector. The center of the
connector is filled with a non-conductive grease to pre-
vent corrosion of the terminals. If any wires are re-
placed on the engine compartment side, the terminal
opening must be resealed with a durable waterproof
sealer. Do not use string-type body caulk as a sealer.
Fusible Links
Fusible links are harness wires covered with a special
non-flammable insulation. The links protect circuits
which are not normally fused due to carrying high am-
perage loads or because of their location in the chassis.
They are used to prevent major harness damage in the
event a short circuit, short to ground or overload condi-
tion occurs.
All Jeep models are equipped with fusible links, lo-
cated in the engine compartment, which protect the
circuits shown in the Wiring Diagrams.
Each link is of a fixed value for the specific load.
Replacement links are listed in the parts catalog.
O S T A R T
O N
LOCKQ 1
ACC-O I
C A S E
G N D .
NOTE: Failure of a fusible link is often caused by a
grounded circuit; therefore, the cause of the failure
must be determined prior to installing a new link.
Fusible Link Replacement
(1) Disconnect battery negative cable.
(2) Follow one end of the link to the terminal end.
Follow the remaining end to wire harness.
(3) Remove harness tape approximately 2 inches
from where link enters harness; the soldered splice will
be visible.
6 0 1 4 0
Fig 3R-25 Ignition Switch Terminals