Page 289 of 1285

INSTALLATION
(1) Install retaining clip to cable at servo.
(2) Install 2 nuts at cable to servo and servo
bracket, tighten to 7 N´m (60 ins. lbs.).
(3) Connect electrical connector to servo.
(4) Connect vacuum hose to servo
SPEED CONTROL SWITCH
The speed control switches are mounted in the
steering wheel and wired through the clock spring
device under the airbag module (Fig. 1).
WARNING: IF REMOVAL OF AIRBAG MODULE IS
NECESSARY, REFER TO THE RESTRAINT SYS-
TEMS.
REMOVAL
(1) Turn off ignition.
(2) Remove two screws from side of each switch.
(3) Rock switch away from airbag and steering
wheel.
(4) Disconnect two-way electrical connector.
(5) Repeat for the other switch.
INSTALLATION
(1) Install switches.
(2) Connect two-way electrical connector.
(3) Install two screws to the side of each switch.
(4) Install airbag, refer to the Restraint Systems
SPEED CONTROL SERVO CABLE
REMOVAL
(1) Disconnect the negative battery cable.
(2) Remove the throttle cable cover.
(3) Remove speed control cable from throttle lever
by sliding clasp out of the hole (Fig. 4).
(4) Lift the retaining tab on the throttle cable and
slide cable out of bracket. Lift the retaining tab on
the speed control cable and slide cable out of bracket.
(5) Disconnect electrical connector from servo.
(6) Disconnect vacuum hose from servo
(7) Remove 2 nuts retaining bracket to servo (Fig.
3).
(8) Remove push nuts holding cable housing to
servo.
(9) Remove retaining clip holding cable to servo.
INSTALLATION
(1) Install retaining clip to cable at servo.
(2) Slide cable bell housing over servo mounting
studs.
(3) Install servo mounting studs into bracket.
(4) Install 2 nuts at cable to servo and servo
bracket, tighten to 7 N´m (60 ins. lbs.).
(5) Connect electrical connector to servo.
(6) Connect vacuum hose to servo
(7) Rotate the throttle lever forward to the wide
open position and install speed control cable clasp.
(8) Slide speed control cable into throttle cable
bracket and engage retaining tab. Slide throttle cable
into throttle cable bracket and engage retaining tab.
(9) Install the Throttle cable cover.
(10) Connect the negative battery cable.
Fig. 3 Speed Control Servo
Fig. 4 Speed Control Cable
8H - 4 VEHICLE SPEED CONTROL SYSTEMPL
REMOVAL AND INSTALLATION (Continued)
Page 290 of 1285
VACUUM RESERVOIR
REMOVAL
(1) Raise and support vehicle.
(2) Remove screws on top of vacuum reservoir.
(3) Remove vacuum hose.
(4) Remove vacuum reservoir (Fig. 5).
INSTALLATION
(1) Install vacuum reservoir, install screws and
tighten to 5 N.m (44 in. lbs.).
(2) Install vacuum hose.
(3) Lower vehicle.
Fig. 5 Vacuum Reservoir
PLVEHICLE SPEED CONTROL SYSTEM 8H - 5
REMOVAL AND INSTALLATION (Continued)
Page 291 of 1285
Page 292 of 1285

TURN SIGNAL and HAZARD WARNING SYSTEMS
TABLE OF CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION..........................1
DESCRIPTION AND OPERATION
HAZARD WARNING SYSTEM................2
HEADLAMP SWITCH......................2
COMBINATION FLASHER...................2DIAGNOSIS AND TESTING
MULTI-FUNCTION SWITCH.................3
REMOVAL AND INSTALLATION
COMBINATION FLASHER...................5
MULTI-FUNCTION SWITCH.................5
GENERAL INFORMATION
INTRODUCTION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAG, SEE GROUP 8M, PASSIVE RESTRAINT SYS-
TEMS FOR AIRBAG REMOVAL.
The turn signals are part of the multi-function
switch (Fig. 1), which contains:
²Electrical circuitry for turn signals
²Hazard warning switch²Headlamp switch
²Fog Lamp Switch
²Headlamp beam select switch
²Optical Horn
²Instrument Panel Lamp Dimmer/Interior Lamp
Switch
²Combination Flasher
Fig. 1 Mutli-Function Switch
1 ± TURN SIGNAL CONTROL STALK
2 ± HAZARD WARNING SWITCH
3 ± WINDSHIELD WIPER/WASHER CONTROL
4 ± WINDSHIELD WIPER/WASHER SWITCH RETAINING
SCREWS5 ± CANCELLING CAM
6 ± PANEL DIMMER/INTERIOR LIGHT SWITCH
7 ± EXTERIOR LIGHTING CONTROL/FOG LAMP
PLTURN SIGNAL and HAZARD WARNING SYSTEMS 8J - 1
Page 293 of 1285

The integrated switch assembly is mounted to the
left hand side of the steering column. When the
driver wishes to signal his intentions to change direc-
tion of travel, he moves the lever upward to cause
the right signals to flash and downward to cause the
left signals to flash. After completion of a turn the
system is deactivated automatically. As the steering
wheel returns to the straight ahead position, a can-
celing cam molded to the clockspring mechanism
comes in contact with the cancel actuator on the turn
signal multi-function switch assembly. The cam lobe,
pushing on the cancel actuator, returns the switch to
the off position.
If only momentary signaling such as indication of a
lane change is desired, the switch is actuated to a
left or right intermediate detent position. In this
position the signal lamps flash as described above,
but the switch returns to the OFF position as soon as
the lever is released.
When the system is activated, one of two indicator
lamps mounted in the instrument cluster flashes in
unison with the turn signal lamps, indicating to the
driver that the system is operating.
DESCRIPTION AND OPERATION
HAZARD WARNING SYSTEM
The hazard warning system is actuated by a push
button located in the muti-function switch (Fig. 1) on
the top of the steering column between the steering
wheel and the instrument panel. The hazard switch
is identified with a double triangle on front of the
button.
HEADLAMP SWITCH
The headlamp switch is part of the Multi-Function
Switch (Fig. 1). Refer to Multi-Function Switch Diag-
nosis and Testing, Turn Signal and Hazard Warning
Flasher Diagnosis table in this section.
COMBINATION FLASHER
The turn signal flasher and the hazard warning
flasher are combined into one unit called a combina-
tion flasher (combo-flasher). The combo- flasher con-
trols the flashing of the hazard warning system and
the turn signal system. An inoperative bulb or incom-
plete turn signal circuit will cause the flasher rate to
double.
The combo-flasher is located on the back of the
multi-function switch (Fig. 2). The combo-flasher is
black in color and has a dampener material wrapped
on it.
Fig. 2 Combination-Flasher
1 ± COMBINATION FLASHER
2 ± MULTI-FUNCTION SWITCH
8J - 2 TURN SIGNAL and HAZARD WARNING SYSTEMSPL
GENERAL INFORMATION (Continued)
Page 294 of 1285

DIAGNOSIS AND TESTING
MULTI-FUNCTION SWITCH
Should any function of the multi-function switch
fail, the entire switch assembly must be replaced.
Refer to Turn Signal and Hazard Warning Flasher
Diagnosis table.
TURN SIGNAL AND HAZARD WARNING FLASHER DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
TURN SIGNAL FLASHES AT
TWICE THE NORMAL RATE.(1) FAULTY EXTERNAL LAMP.
(2) POOR GROUND AT LAMP.
(3) OPEN CIRCUIT IN WIRING TO
EXTERNAL LAMP.
(4) FAULTY CONTACT IN SWITCH.(1) REPLACE LAMP.
(2) CHECK AND/OR REPAIR WIRING
(3) REPAIR WIRING HARNESS.
CHECK CONNECTORS.
(4) REPLACE MULTI FUNCTION
SWITCH.
INDICATOR LAMP ILLUMINATED
BRIGHTLY, EXTERNAL LAMP
GLOWS DIMLY AT A RAPID
RATE.(1) LOOSE OR CORRODED
EXTERNAL LAMP CONNECTION.
(2) POOR GROUND CIRCUIT AT
EXTERNAL LAMP.
(3) OPEN INSTRUMENT CLUSTER.(1) REPLACE SOCKET CONNECTION.
(2) REPAIR WIRING HARNESS.
CHECK CONNECTORS.
(3) REPLACE INSTRUMENT
CLUSTER.
HAZARD WARNING SYSTEM
DOES NOT FLASH.(1) FAULTY FUSE.
(2) FAULTY FLASHER.
(3) OPEN CIRCUIT IN FEED WIRE TO
SWITCH.
(4) FAULTY CONTACT IN SWITCH.
(5) OPEN OR GROUNDED CIRCUIT
IN WIRING TO EXTERNAL LAMPS.(1) REPLACE FUSE.
(2) REPLACE FLASHER.
(3) REPAIR WIRING HARNESS,
CHECK CONNECTORS.
(4) REPLACE MULTI FUNCTION
SWITCH.
(5) REPAIR WIRING HARNESS.
INDICATOR LAMP ILLUMINATES
BRIGHTLY, EXTERNAL LAMP
DOES NOT LIGHT.(1) OPEN CIRCUIT IN WIRE TO
EXTERNAL LAMP.
(2) BURNED OUT LAMP.(1) REPAIR WIRING HARNESS.
(2) REPLACE LAMP.
SYSTEM DOES NOT FLASH ON
EITHER SIDE.(1) FAULTY FUSE.
(2) FAULTY FLASHER UNIT.
(3) LOOSE BULKHEAD CONNECTOR.
(4) LOOSE OR FAULTY REAR
WIRING HARNESS OR TERMINALS.
(5) OPEN CIRCUIT TO FLASHER
UNIT.
(6) OPEN CIRCUIT IN FEED WIRE TO
TURN SIGNAL SWITCH.
(7) FAULTY SWITCH CONNECTION IN
SWITCH.
(8) OPEN OR GROUNDED CIRCUIT
IN WIRING TO EXTERNAL LAMPS.(1) REPLACE FUSE.
(2) REPLACE FLASHER.
(3) TIGHTEN CONNECTOR.
(4) REPAIR WIRING HARNESS
(5) CHECK CONNECTORS, REPAIR
WIRING HARNESS.
(6) CHECK CONNECTORS, REPAIR
WIRING HARNESS.
(7) REPLACE MULTI FUNCTION
SWITCH.
(8) REPAIR WIRING HARNESS.
SYSTEM DOES NOT CANCEL
AFTER COMPLETION OF THE
TURN.(1) BROKEN CANCELLING FINGER
ON SWITCH.
(2) BROKEN OR MISSING
CANCELLING CAM ON
CLOCKSPRING.(1) REPLACE MULTI FUNCTION
SWITCH.
(2) REPLACE CLOCKSPRING.
EXTERNAL LAMPS OPERATE
PROPERLY, NO INDICATOR
LAMP OPERATION.(1) FAULTY INDICATOR LAMP IN
INSTRUMENT CLUSTER.
(2) OPEN CIRCUIT OR WIRING.(1) REPLACE LAMP.
(2) REPAIR WIRING HARNESS.
PLTURN SIGNAL and HAZARD WARNING SYSTEMS 8J - 3
Page 295 of 1285

To test the switch, first disconnect the negative
battery cable, then remove the upper and lower col-
umn shrouds to gain access to the switch connector.
Remove switch connector. Using an ohmmeter, testfor continuity (no resistance) between the terminals
of the switch as shown in the Multi-Function Switch
Continuity Test Chart for diagnosis. Refer to (Fig. 3),
(Fig. 4), and (Fig. 5) for connector terminal locations.
MULTI-FUNCTION SWITCH CONTINUITY TEST
SWITCH POSITION MODE CONTINUITY BETWEEN
TURN SIGNAL IN NEUTRAL
HAZARD WARNING SWITCH OFFNEUTRAL B-1 AND B-4
B-1 AND B-5
TURN SIGNAL ON
HAZARD WARNING SWITCH OFFLEFT TURN A-2 AND B-2
A-2 AND B-4
B-1 AND B-5
RIGHT TURN A-2 AND B-5
A-2 AND B-6
B-1 AND B-4
TURN SIGNAL IN NEUTRAL
HAZARD WARNING SWITCH ONNEUTRAL A-2 AND B-2
A-2 AND B-4
A-2 AND B-5
A-2 AND B-6
A-3 AND A-5
A-3 AND B-7
HEADLAMP BEAM ON PARK B-9 AND B-20
LOW B-16 AND B-18
B-16 AND B-19
HIGH B-17 AND B-18
B-17 AND B-19
OPTICAL HORN ON B-17 AND B-18
B-17 AND B-19
FRONT FOG ON B-13 AND B-14
INSTRUMENT PANEL DIMMER DETENT 6 DIMMEST B-7 AND B-8 3181 OHMS
5 B-7 AND B-8 1851 OHMS
4 B-7 AND B-8 1202 OHMS
3 B-7 AND B-8 598 OHMS
2 BRIGHTEST B-7 AND B-8 250 OHMS
1 PARADE B-7 AND B-8 100 OHMS
0 DOME LAMP ON B-7 AND B-8 LESS THAN 1 OHM
WIPER OFF PIN C-1 AND C-6
LOW/ MIST PIN C-4 AND C-6
HIGH PIN C-4 AND C-5
WASH PIN C-4 AND C-3
INTERMITTENT CANNOT BE CHECKED
8J - 4 TURN SIGNAL and HAZARD WARNING SYSTEMSPL
DIAGNOSIS AND TESTING (Continued)
Page 296 of 1285

REMOVAL AND INSTALLATION
COMBINATION FLASHER
The flasher is mounted to the back side of the
multi-function switch (Fig. 2). To gain access the
upper steering column shroud must be removed.
Refer to Group 8E Instrument Panel Systems, Steer-
ing Column Shroud Removal and Installation. The
flasher can be removed by pulling it toward the
instrument cluster (forward). The flasher is serviced
separately from the multi-function switch.
MULTI-FUNCTION SWITCH
REMOVAL
(1) Disconnect and isolate the battery negative
cable (Fig. 6).
(2) Remove both upper and lower steering column
shrouds. Refer to Group 8E Instrument Panel Sys-
tems, Steering Column Shroud Removal and Instal-
lation.
Fig. 3 Combination Flasher Connector (A)
Fig. 4 Multi-Function Switch Connector (B)
Fig. 5 Windshield Wiper/Washer Switch Connector
(C)
Fig. 6 Battery Negative Cable Remove/Install
1 ± NEGATIVE CABLE
2 ± NEGATIVE BATTERY POST
PLTURN SIGNAL and HAZARD WARNING SYSTEMS 8J - 5
DIAGNOSIS AND TESTING (Continued)