Chrysler Town & Country/Voyager, Dodge Caravan, Plymouth Voyager. Manual — part 218
(c) If continuity, refer to Stop Lamp Switch Test.
(d) If stop lamp switch test OK, Test continuity
between pin 6 of stop lamp switch and ground.
(14) Using an ohmmeter, touch one lead to a good
body ground and touch the other lead to pin 30. The
meter should show no continuity when transmission is
in DRIVE and continuity when in PARK or NEUTRAL.
If not test Neutral Start and Back-Up switch using
DRB II.
SPEED CONTROL SWITCH TEST
WARNING: IF REMOVAL OF AIR BAG MODULE IS
NECESSARY, REFER TO GROUP 8M, RESTRAINT
SYSTEMS.
(1) Remove the switch and disconnect 4-way connec-
tor.
(2) Using an ohmmeter, test continuity at the four
pins of the speed control switch. Refer to Speed Control
Switch Continuity (Fig. 9).
(3) If there is no continuity or incorrect continuity at
any one of the switch positions, replace the switch.
STOP LAMP SPEED CONTROL SWITCH TEST
(1) Disconnect the six way connector at the stop
lamp switch (Fig. 10). Using an ohmmeter, continuity
may be checked at the switch side of the connector as
follows:
(a) With brake pedal released, there should be
continuity:
• Between pin 1 and pin 4.
• Between pin 3 and pin 6.
• No continuity between pin 2 and pin 5.
(b) With brake pedal depressed, there should be no
continuity:
• Between pin 1 and pin 4.
• Between pin 3 and pin 6.
• Continuity between pin 2 and pin 5.
(2) If the above results are not obtained, the stop
lamp switch is defective or out of adjustment.
(3) Stop lamp switch adjustment is detailed in
Group 5, Brakes.
VACUUM SUPPLY TEST
(1) Disconnect vacuum hose at the servo and install
a vacuum gauge in the hose (Fig. 11).
(2) Start engine and observe gauge at idle. Vacuum
gauge should read at least ten inches of mercury. Shut
off engine, the vacuum should continue to hold 10
inches of mercury.
Fig. 9 Speed Control Switch Continuity
Fig. 10 Stop Lamp and Speed Control Switch Wiring
Fig. 11 Vacuum Gauge Test
.
SPEED CONTROL SYSTEM
8H - 7
(3) If vacuum does not meet this requirement, check
and correct the following vacuum leaks:
• Vacuum lines
• Check valve
• Vacuum reservoir
• Servo Vacuum, refer to Servo Vacuum Test
• Poor engine performance.
SERVO VACUUM TEST
(1) Remove the speed control cable at the throttle
body end.
(2) Disconnect the 4-way electrical connector and
the vacuum harness at the servo (Refer to Fig. 6).
(3) Connect battery voltage to pin 2 of the servo.
(4) Ground the remaining three servo pins 1, 3 and
4.
(5) Connect a hand held vacuum pump to the servo
vacuum nipple and apply 10 to 15 inches of vacuum.
(6) The cable should pull in and hold for as long as
vacuum is applied.
SERVO UNIT
REMOVAL
(1) Remove two nuts attaching speed control cable
and mounting bracket to servo.
(2) Remove
screws
attaching
servo
mounting
bracket.
(3) Remove servo mounting bracket.
(4) Disconnect electrical connectors and vacuum
hose.
(5) Pull cable away from servo to expose retaining
clip and remove clip attaching cable to servo.
INSTALLATION
(1) With throttle in full open position align hole in
speed control cable sleeve with hole in servo pin and
install retaining clip.
(2) Connect vacuum hose to servo.
(3) Connect electrical connector.
(4) Position mounting bracket and install screws
attaching bracket. Tighten screws to 12 N
Im (105 in.
lbs.), if mounted to shock tower 5 N
Im (45 in. lbs.).
(5) Insert servo studs through holes in speed control
cable and mounting bracket.
(6) Install nuts, tighten to 7 N
Im (60 in. lbs.).
SPEED CONTROL SWITCH
The speed control switch is mounted in the steering
wheel and wired through the clock spring device under
the steering wheel hub (Fig.1).
WARNING: IF REMOVAL OF AIR BAG MODULE IS
NECESSARY, REFER TO GROUP 8M, RESTRAINT
SYSTEMS.
REMOVAL
(1) Turn off ignition.
(2) Remove two (2) screws from back side of steering
wheel.
(3) Rock switch away from air bag or horn pad while
lifting switch out of steering wheel.
(4) Disconnect 4-way electrical connector.
INSTALLATION
(1) Turn off ignition.
(2) Connect 4-way electrical connector from clock
spring to switch.
(3) Place switch in steering wheel, sliding the for-
ward edge of switch under air bag or horn pad. Line up
locating pins on switch with holes in steering wheel
frame.
(4) Attach switch to wheel with two screws starting
with the screw at the left end of the switch.
8H - 8
SPEED CONTROL SYSTEM
.
TURN SIGNALS AND HAZARD WARNING FLASHER
CONTENTS
page
page
CHIME FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . 1
ELECTRONIC COMBINATION FLASHER
. . . . . . . 1
FLASHER SYSTEM DIAGNOSIS
. . . . . . . . . . . . . 3
GENERAL INFORMATION
. . . . . . . . . . . . . . . . . . 1
HAZARD WARNING SWITCH
. . . . . . . . . . . . . . . 1
MULTI-FUNCTION SWITCH
. . . . . . . . . . . . . . . . 1
GENERAL INFORMATION
WARNING: ON VEHICLES EQUIPPED WITH AIRBAG,
SEE GROUP 8M, RESTRAINT SYSTEMS FOR AIRBAG
REMOVAL PROCEDURES.
The turn signals are apart of the multi-function
switch. The switch contains the turn signal, headlamp
beam select, headlamp optical horn, windshield wiper,
pulse wipe and windshield washer controls. The inte-
grated switch is mounted on the left side of the steering
column. The driver moves the lever upward for the
right signal and downward for the left signal to flash.
After completion of a turn the system is canceled
automatically.
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 the lever is
released.
Activate the system and the indicator lamps will
flash in unison with the turn signal lamps. This shows
that the system is operating.
HAZARD WARNING SWITCH
Refer to Group 8E, Instrument Panel, Headlamp
Switch.
CHIME FUNCTION
The chime will sound after the vehicle has traveled a
distance of 0.6 miles at a speed above 15 miles per
hour.
MULTI-FUNCTION SWITCH
The multi-function switch contains:
• Electrical circuitry for turn signal
• Headlamp beam select
• Headlamp optical horn
• Windshield wiper
• Pulse wipe
• Windshield washer switching
This integrated switch assembly is mounted to the
left hand side of the steering column. If any function of
the switch fails, the entire switch assembly must be
replaced. Refer to Fig. 1 for diagnosis.
SWITCH TEST
(1) Disconnect the negative battery cable.
(2) Remove the upper and lower column covers to
gain access to the switch connector.
(3) Remove switch connector.
(4) Using an ohmmeter, test for continuity between
the terminals of the switch as shown in the following
continuity charts (Fig 2 and 3).
(5) If reading are incorrect, replace switch.
REMOVAL
(1) Disconnect battery negative cable.
(2) Tilt column only remove tilt lever.
(3) Remove both upper and lower steering column
covers.
(4) Remove multi-function switch tamper proof
mounting screws (Fig.4).
(5) Gently pull switch away from column and loosen
connector screw. The screw will remain in the connec-
tor.
(6) Remove wiring connector from multi-function
switch.
INSTALLATION
(1) Install wiring connector to switch and tighten
connector retaining screw to 2 N
Im (17 in. lbs.) torque.
(2) Mount multi-function switch to column and
tighten retaining screws to 2 N
Im (17 in. lbs.) torque.
(3) Install steering column covers. Tighten retaining
screws to 2 N
Im (17 in. lbs.) torque.
(4) Tilt column only, install the tilt lever.
(5) Connect battery negative cable.
(6) Check the switch functions for proper operation.
ELECTRONIC COMBINATION FLASHER
The module provides both turn signal and hazard
flasher operation. The flasher plugs into the lower left
corner of relay bank to the left of the fuse block. To gain
access to the flasher, remove the lower steering column
cover. The flash rate for the turn signal and hazard
warning flasher is constant for any number of lamps.
Depending on exact current draw of lamps, there
should be between 60 and 120 flashes per minute. If a
lamp or circuit to a lamp is open, the
.
TURN SIGNALS AND HAZARD WARNING FLASHER
8J - 1
Fig. 1 Turn Signal and Hazard Warning Flasher Diagnosis
8J - 2
TURN SIGNALS AND HAZARD WARNING FLASHER
.
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