Key-In Ignition Switch Diagnosis And Testing; Headlamp Switch Diagnosis And Testing; Instrument Cluster - Jeep 200 Cherokee Service Manual

XJ
DIAGNOSIS AND TESTING (Continued)
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL,
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) Disconnect and isolate the battery negative
cable. Unplug the driver seat belt switch wire har-
ness connector on the floor under the driver seat
near the seat belt buckle-half anchor. Check for con-
tinuity between the seat belt switch sense circuit and
the ground circuit cavities of the seat belt half of the
driver seat belt switch wire harness connector. There
should be continuity with the seat belt unbuckled,
and no continuity with the seat belt buckled. If OK,
go to Step 2. If not OK, replace the faulty seat belt
buckle-half assembly.
(2) Check for continuity between the ground cir-
cuit cavity in the body half of the driver seat belt
switch wire harness connector and a good ground.
There should be continuity. If OK, see the Instru-
ment Cluster diagnosis in this group. If not OK,
repair the circuit to ground as required.
KEY-IN IGNITION SWITCH
For circuit descriptions and diagrams, refer to
8W-40 - Instrument Cluster or 8W-44 - Interior
Lighting in Group 8W - Wiring Diagrams.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL,
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) Disconnect and isolate the battery negative
cable. Remove the steering column shrouds. Refer to
Group 8D - Ignition Systems for the procedures.
Unplug the key-in ignition switch wire harness con-
nector from the ignition switch.
(2) Check for continuity between the key-in switch
sense circuit and the left front door jamb switch
sense circuit terminals of the key-in ignition switch.
There should be continuity with the key in the igni-
tion lock cylinder, and no continuity with the key
removed from the ignition lock cylinder. If OK, go to
Step 3. If not OK, replace the faulty ignition switch
assembly.
GROUP 8M - PASSIVE
STEERING COLUMN,
GROUP 8M - PASSIVE
STEERING COLUMN,
CHIME/BUZZER WARNING SYSTEMS
(3) Check for continuity between the left front door
jamb switch sense circuit cavity of the key-in ignition
switch wire harness connector and a good ground.
OR There should be continuity with the driver door open,
and no continuity with the driver door closed. If OK,
see the diagnosis for Instrument Cluster in this
group. If not OK, repair the circuit to the driver door
jamb switch as required.
HEADLAMP SWITCH
For circuit descriptions and diagrams, refer to
8W-40 - Instrument Cluster or 8W-44 - Interior
Lighting in Group 8W - Wiring Diagrams.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL,
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) Disconnect and isolate the battery negative
cable. Remove the headlamp switch from the instru-
ment panel. Refer to Group 8E - Instrument Panel
Systems for the procedures. Unplug the headlamp
switch wire harness connectors. Check for continuity
between the left front door jamb switch sense circuit
cavity of the headlamp switch wire harness connector
and a good ground. There should be continuity with
the driver door closed, and no continuity with the
driver door open. If OK, go to Step 2. If not OK,
repair the circuit to the driver door jamb switch as
required.
(2) Check for continuity between the key-in switch
OR
sense circuit terminal and the left front door jamb
switch sense terminal of the headlamp switch. There
should be no continuity with the switch in the Off
position, and continuity with the switch in the park
or head lamps On position. If OK, see the diagnosis
for the Instrument Cluster in this group. If not OK,
replace the faulty headlamp switch.

INSTRUMENT CLUSTER

Before performing this test, complete the testing of
the hard-wired chime warning system switches as
described in this group. For circuit descriptions and
diagrams, refer to 8W-40 - Instrument Cluster or
8W-44 - Interior Lighting in Group 8W - Wiring Dia-
grams.
TO GROUP 8M -
STEERING COLUMN,
8U - 3
PASSIVE
OR