Jeep Cherokee 2000 Service Manual - page 382
proceed with lamp diagnosis. Refer to Washer Sys-
tem in the Diagnosis and Testing section of Group
8K - Wiper and Washer Systems for more informa-
tion. For complete circuit diagrams, refer to Instru-
ment Cluster in the Contents of Group 8W - Wiring
Diagrams.
(1) Check the fused ignition switch output (run/
start) fuse in the junction block. If OK, go to Step 2.
If not OK, repair the shorted circuit or component as
required and replace the faulty fuse.
(2) Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run/start) fuse in the junction block. If OK,
go to Step 3. If not OK, repair the open fused ignition
switch output (run/start) circuit to the ignition switch
as required.
(3) Turn the ignition switch to the Off position.
Disconnect the wire harness connector from the
washer fluid level sensor. Install a jumper wire
between the two cavities of the washer fluid level
sensor wire harness connector. Turn the ignition
switch to the On position. About thirty seconds after
the ignition switch is turned to the On position, the
low washer fluid warning lamp should light. Remove
the jumper wire and the lamp should go off. If OK,
replace the faulty washer fluid level sensor. If not
OK, go to Step 4.
(4) Turn the ignition switch to the Off position.
Check for continuity between the ground circuit cav-
ity of the washer fluid level sensor wire harness con-
nector
and
a
good
ground.
There
should
be
continuity. If OK, go to Step 5. If not OK, repair the
open ground circuit to ground as required.
(5) Disconnect and isolate the battery negative
cable. Remove the instrument cluster. The washer
fluid level sensor wire harness connector is still dis-
connected. Check for continuity between the low
washer fluid level sense circuit cavity of the instru-
ment cluster wire harness connector B and a good
ground. There should be no continuity. If OK, go to
Step 6. If not OK, repair the shorted low washer
fluid level sense circuit as required.
(6) Check for continuity between the low washer
fluid level sense circuit cavities of the instrument
cluster wire harness connector B and the washer
fluid level sensor wire harness connector. There
should be continuity. If OK, replace the faulty bulb.
If not OK, repair the open low washer fluid level
sense circuit as required.
TURN SIGNAL INDICATOR LAMP
The diagnosis found here addresses an inoperative
turn signal indicator lamp condition. For any other
turn signal problem, refer to Turn Signal and Haz-
ard Warning Systems in the Diagnosis and Testing
section of Group 8J - Turn Signal and Hazard Warn-
ing Systems for further diagnosis. If no turn signal or
hazard warning system problem is found, the follow-
ing procedure will help locate a short or open in the
indicator lamp circuit. For complete circuit diagrams,
refer to Instrument Cluster in the Contents of
Group 8W - Wiring Diagrams.
(1) Disconnect and isolate the battery negative
cable. Remove the instrument cluster.
(2) Connect the battery negative cable. Activate
the hazard warning system by moving the hazard
warning switch button to the On position. Check for
battery voltage at the inoperative (right or left) turn
signal circuit cavity of the instrument cluster wire
harness connector (connector A - left, or connector B -
right). There should be a switching (on and off) bat-
tery voltage signal. If OK, replace the faulty (right or
left) indicator lamp bulb. If not OK, repair the open
(right or left) turn signal circuit to the turn signal/
hazard warning (multi-function) switch as required.
INSTRUMENT PANEL CIGAR LIGHTER
For complete circuit diagrams, refer to Horn/Ci-
gar Lighter in the Contents of Group 8W - Wiring
Diagrams.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS,
REFER
TO
GROUP
8M
-
PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING
WHEEL,
STEERING
COLUMN,
OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Remove the cigar lighter knob and element
from the cigar lighter receptacle shell. Check for con-
tinuity between the inside circumference of the cigar
lighter receptacle shell and a good ground. there
should be continuity. If OK, go to Step 2. If not OK,
go to Step 3.
(2) Turn the ignition switch to the On position.
Check for battery voltage at the insulated contact
located at the back of the cigar lighter receptacle
shell. If OK, replace the faulty cigar lighter knob and
element. If not OK, go to Step 3.
(3) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Remove the instrument panel accessory switch bezel.
Check for continuity between the ground circuit cav-
ity of the cigar lighter wire harness connector and a
good ground. There should be continuity. If OK, go to
Step 4. If not OK, repair the open ground circuit to
ground as required.
(4) Connect the battery negative cable. Turn the
ignition switch to the Accessory or On positions.
Check for battery voltage at the cigar lighter relay
XJ
INSTRUMENT PANEL SYSTEMS
8E - 11
DIAGNOSIS AND TESTING (Continued)