Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Jeep Cherokee XJ 1988-1989.1993-1995 Approved 1995 XJ Jeep Cherokee 95XJ_8J
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J TURN SIGNAL AND HAZARD WARNING SYSTEMS 8J - 1
TURN SIGNAL AND HAZARD WARNING SYSTEMS
CONTENTS
page page
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SERVICE PROCEDURES ................... 5
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . 1
GENERAL INFORMATION
Following are general descriptions of the major TURN SIGNAL FLASHER (YJ ONLY)
components in the XJ (Cherokee)/YJ (Wrangler) The turn signal flasher is located in the fuseblock
model turn signal and hazard warning systems. Refer module. It contains one fixed contact point and one
to Group 8W - Wiring Diagrams for complete circuit contact point attached to a flexible bimetal arm. The
descriptions and diagrams. contact points are normally closed. When a turn sig-
nal is activated, current flows through the flasher. As
TURN SIGNAL SYSTEM current flows through the bimetal arm it heats and
With the ignition switch in the ON or ACCESSORY flexes to pull the contact points open, stopping cur-
position and the turn signal switch lever (YJ) or rent flow. As the bimetal arm cools it straightens,
multi-function switch control lever (XJ) moved up until the contact points close and the cycle repeats.
(right turn) or down (left turn), the turn signal sys- The standard flasher is designed to handle the cur-
tem is activated.
rent flow requirements of the factory installed light-
When the turn signal system is activated, the se-
ing. If supplemental lighting is added to the turn
lected (right or left) turn signal indicator lamp, front
signal circuits such as when towing a trailer with
park/turn signal lamp and rear tail/stop/turn signal
lights, the current flow through the flasher increases.
lamp bulb filaments will flash. With the headlamp
switch in the OFF position, the turn and front side This causes the flash rate to increase. It is recom-
marker lamps flash in unison. With the headlamp mended that the standard flasher be replaced with a
switch in the ON position, the turn and front side heavy-duty (hazard warning) flasher when supple-
marker lamps flash alternately. mental lighting is added.
However, when a turn signal bulb fails with a stan-
HAZARD WARNING SYSTEM dard flasher, the remaining bulbs in that circuit will
The hazard warning is activated by a switch button light, but not flash. This will give the driver an indi-
located below the ignition lock cylinder (YJ) or on the cation to check the turn signal bulbs. Because a
top of the steering column (XJ) between the steering heavy-duty flasher has different internal circuitry, a
wheel and the instrument panel. The hazard warning failed bulb will not prevent the remaining bulbs in
flasher (YJ) or combination flasher (XJ) receives bat- the circuit from flashing. Therefore, it is recom-
tery feed at all times, and the system is functional mended that an occasional visual inspection of exte-
regardless of ignition switch position. The hazard rior turn signal lamp operation be performed when a
warning switch button is identified with a double heavy-duty flasher is installed.
triangle. On YJ models, push the switch button in to
activate the hazard warning system and pull the HAZARD WARNING FLASHER (YJ ONLY)
button out to turn system off. On XJ models, push in The hazard warning flasher is located in the fuse-
on the switch button to latch the switch and activate block module. The hazard warning flasher contains
the hazard warning system, and push in on the two normally open contact points mounted to two
switch button again to unlatch the switch and turn flexible arms. A bimetal strip is attached between the
the system off. two arms. When the hazard warning is activated,
When the hazard warning system is activated, all current flows through the flasher. As the current
(right and left) turn signal indicator, front park/turn flows through the bimetal strip it heats and pulls the
signal lamp and rear tail/stop/turn signal lamp bulb flexible arms together until the contact points close,
filaments will flash.
8J - 2 TURN SIGNAL AND HAZARD WARNING SYSTEMS J
allowing current flow to the lamps. As the bimetal ◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo