Jeep Cherokee 2000 Service Manual - page 432
(7) Turn the ignition switch to the Off position.
Place the hazard warning switch in the On position.
Check for battery voltage again at the fused B+ cir-
cuit cavity in the combination flasher wire harness
connector. If OK, go to Step 8. If not OK, go to Step 9.
(8) Disconnect and isolate the battery negative
cable. Check for continuity between the ground cir-
cuit cavity of the combination flasher wire harness
connector and a good ground. There should be conti-
nuity. If OK, go to Step 9. If not OK, repair the open
ground circuit to ground as required.
(9) Disconnect the instrument panel wire harness
connector from the multi-function switch connector
receptacle. Check for continuity between the turn sig-
nal output circuit cavities in the combination flasher
wire harness connector and in the instrument panel
wire harness connector for the multi-function switch.
There should be continuity. If OK, go to Step 10. If
not OK, repair the open turn signal output circuit as
required.
(10) Check for continuity between the hazard
warning output circuit cavities in the combination
flasher wire harness connector and in the instrument
panel wire harness connector for the multi-function
switch. There should be continuity. If OK, refer to
Turn Signal Switch and Hazard Warning Switch
in the Diagnosis and Testing section of this group. If
not OK, repair the open hazard warning output cir-
cuit as required.
TURN SIGNAL SWITCH AND HAZARD
WARNING SWITCH
The turn signal switch and the hazard warning
switch are integral to the multi-function switch.
Refer to Turn Signal and Hazard Warning Sys-
tems in the Diagnosis and Testing section of this
group before testing the multi-function switch. For
complete circuit diagrams, refer to Turn Signals 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 PRECAUTIONS
COULD RESULT IN ACCIDENTAL AIRBAG DEPLOY-
MENT AND POSSIBLE PERSONAL INJURY.
(1) Disconnect and isolate the battery negative
cable. Disconnect the instrument panel wire harness
connector from the multi-function switch connector
receptacle.
(2) Using an ohmmeter, perform the switch conti-
nuity checks at the connector receptacle terminals as
shown in the Multi-Function Switch Continuity chart
(Fig. 3).
(3) If the turn signal switch or hazard warning
switch fails any of the continuity checks, replace the
faulty multi-function switch assembly as required. If
the switch circuits are OK, repair the lighting cir-
cuits as required.
REMOVAL AND INSTALLATION
COMBINATION FLASHER
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.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the knee blocker from the instrument
panel. Refer to Knee Blocker in the Removal and
Installation section of Group 8E - Instrument Panel
Systems for the procedures.
(3) Reach through the outboard side of the steer-
ing column opening to access and disengage the com-
bination flasher wire harness connector retainer from
SWITCH POSITION
CONTINUITY
BETWEEN
TURN
SIGNAL
HAZARD
WARNING
NEUTRAL
OFF
F and H
F and K
A and E
LEFT
OFF
F and H
C and K
C and I
A and E
RIGHT
OFF
F and K
C and H
C and J
A and E
NEUTRAL
ON
B and E
C and H
C and K
C and I
C and J
Fig. 3 Multi-Function Switch Continuity
XJ
TURN SIGNAL AND HAZARD WARNING SYSTEMS
8J - 5
DIAGNOSIS AND TESTING (Continued)