Chrysler New Yorker. Manual — part 77
SERVO VACUUM TEST
(1) Turn ignition switch to the ON position with-
out starting engine. Activate speed control ON
switch.
(2) Disconnect the four-way electrical connector
and the vacuum harness at the servo (Fig. 4).
(3) Connect a jumper wire from Pin 3 of the servo
to Pin 3 of the wire connector.
(4) Ground Pins 2 and 4 in the servo. Do not con-
nect pin 1.
(5) Connect a hand held vacuum pump to the vac-
uum nipple and apply 10 - 15 inches of vacuum.
(6) If servo pulls cable, replace servo.
(7) Ground Pin 1 on servo.
(8) Check that the throttle cable pulls in and holds
as long as the vacuum pump is connected. After one
minute, check if cable is still holding. If cable does
not hold replace the servo.
(9) Disconnect jumper from pin 3. Cable should
return to rest position. If not, replace servo.
(10) Connect 4 way electrical connector and vac-
uum harness to servo.
STOP LAMP SWITCH TEST
(1) Remove the stop lamp switch refer to Stop
Switch Removal/Installation in this section. Discon-
nect connector from stop lamp switch (Fig. 5). Using
an ohmmeter, switch continuity may be checked as
follows:
(2) With switch plunger released, there should be
continuity between Pin 5 and Pin 6.
(3) With switch plunger depressed, there should be
continuity:
• Between Pin 1 and Pin 2.
• Between Pin 3 and Pin 4.
(4) If the above results are not obtained, the stop
lamp switch is defective or out of adjustment.
(5) 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. 6).
(2) Start engine and observe gauge at idle. Vac-
uum gauge should read at least ten inches of mer-
cury. Shut off engine, the vacuum should continue to
hold 10 inches of mercury.
(3) If vacuum does not meet this requirement,
check and correct the following vacuum leaks in the
vacuum lines, check valve, vacuum reservoir or check
for poor engine performance.
Fig. 4 Servo Harness Connector
Fig. 5 Stop Lamp Wiring
Fig. 6 Vacuum Gauge Test—Typical
8H - 6
VEHICLE SPEED CONTROL SYSTEM
300M
DIAGNOSIS AND TESTING (Continued)
REMOVAL AND INSTALLATION
SERVO
REMOVAL
(1) Disconnect the negative battery cable.
(2) Remove three bolts from servo bracket.
(3) Disconnect electrical connectors and vacuum
hose.
(4) Remove two nuts attaching speed control cable
and mounting bracket to servo.
(5) Remove servo mounting bracket.
(6) 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) Insert servo studs through holes in speed con-
trol cable and mounting bracket.
(5) Install nuts, tighten to 6.7 N·m (60 in. lbs.).
(6) Install servo and bracket and tighten bolt and
nuts.
(7) Connect negative battery cable.
SPEED CONTROL SWITCH
REMOVAL
The speed control switch is mounted in the steer-
ing wheel and wired through the clock spring device
under the airbag module.
WARNING:
IF REMOVAL OF AIRBAG MODULE IS
NECESSARY, REFER TO GROUP 8M, RESTRAINT
SYSTEMS.
(1) Turn off ignition.
(2) Remove two screws from side of the switch.
(3) Rock switch away from airbag and steering
wheel.
(4) Disconnect two-way electrical connector.
(5) Repeat for the other switch.
INSTALLATION
(1) For installation, turn off ignition and reverse
above procedures.
STOP LAMP SWITCH
REMOVAL
Remove the switch from the bracket by depressing
the brake pedal and rotating the switch in a counter-
clockwise direction approximately 30 degrees. Pull
the switch rearward and remove from bracket. Dis-
connect wiring harness connector.
INSTALLATION
Before installing the switch, reset the adjustable
switch plunger by pulling on the plunger head until
the plunger reaches the end of its travel. A ratchet-
ing sound will be heard during this procedure.
Connect the wiring harness to the switch. Mount
the switch into the bracket by holding the switch
with the plunger facing forward in car. There is an
index key on the switch that mates with the bracket
slot at the top of the square hole. Align key and push
switch into square hole in bracket while depressing
the brake pedal. Once the switch is seated in the
hole, rotate clockwise approximately 30 degrees to
lock into place. The switch will automatically adjust
when the pedal is released. Pull back on the pedal to
assure correct adjustment.
SPEED CONTROL SERVO CABLE—2.7L
REMOVAL
(1) Disconnect the negative battery cable.
(2) Remove speed control cable from throttle cam
by sliding clasp out hole used for throttle cable.
(3) Compress the retaining tabs on the cable and
slide cable out of bracket.
(4) Remove 2 nuts and 1 bolt from servo bracket.
(5) Disconnect electrical connectors and vacuum
hose.
(6) Remove two nuts attaching speed control cable
and mounting bracket to servo.
(7) Pull cable away from servo to expose retaining
clip and remove clip attaching cable to servo.
(8) Remove servo mounting bracket.
INSTALLATION
(1) Slide cable into throttle cable bracket and
engage retaining tabs.
(2) Rotate the throttle cam forward to the wide
open position and install speed control cable clasp
(Fig. 7).
(3) Rotate the throttle cam forward to the wide
open position and install throttle cable clasp.
(4) Install retaining clip to cable at servo.
(5) Insert servo studs through holes in the mount-
ing bracket and speed control cable.
(6) Install nuts, tighten to 6.7 N·m (60 in. lbs.).
(7) Connect vacuum hose to servo.
(8) Connect electrical connector.
(9) Install servo and bracket and tighten nuts and
bolt.
(10) Connect negative battery cable.
300M
VEHICLE SPEED CONTROL SYSTEM
8H - 7
SPEED CONTROL SERVO CABLE—3.2/3.5L
REMOVAL
(1) Disconnect the negative battery cable.
(2) Remove throttle cable bracket from intake
manifold.
(3) Remove speed control cable from throttle cam
by sliding clasp out hole used for throttle cable.
(4) Remove the throttle cable (with retaining tab)
and then slide cable speed control cable out from
bracket.
(5) Remove one bolt and two nuts from servo
bracket.
(6) Disconnect electrical connectors and vacuum
hose.
(7) Remove two nuts attaching mounting bracket
and speed control cable to servo.
(8) Pull cable away from servo to expose retaining
clip and remove clip attaching cable to servo.
(9) Remove servo mounting bracket.
INSTALLATION
(1) Slide speed control cable into bracket and with
locator positioned into notch in bracket, then slide
throttle cable into bracket and engage retaining tab.
(2) Rotate the throttle cam forward to the wide
open position and install speed control cable clasp
(Fig. 7).
(3) Rotate the throttle cam forward to the wide
open position and install throttle cable clasp.
(4) Install throttle cable bracket and tighten bolts.
(5) Route cable through bracket and install retain-
ing clip to cable at servo.
(6) Insert servo studs through holes in mounting
bracket and speed control cable.
(7) Install nuts, tighten to 6.7 N·m (60 in. lbs.).
(8) Connect vacuum hose to servo.
(9) Connect electrical connector.
(10) Install servo and bracket and tighten bolts.
(11) Connect negative battery cable.
POWERTRAIN CONTROL MODULE
For Removal/Installation refer to Powertrain Con-
trol Module in Group 14, Fuel Injection System.
USE THE DRB SCAN TOOL TO REPROGRAM
THE NEW PCM WITH THE VEHICLE’S ORIGI-
NAL IDENTIFICATION NUMBER (VIN) AND
THE VEHICLE’S ORIGINAL MILEAGE. IF THIS
STEP IS NOT DONE A DIAGNOSTIC TROUBLE
CODE (DTC) MAY BE SET.
VACUUM RESERVOIR
REMOVAL
(1) Disconnect the negative battery cable.
(2) Remove the Powertrain Control Module (PCM)
refer to Group 14, Fuel Injection System.
(3) Remove and reposition coolant reservoir.
(4) Remove PDC and bracket.
(5) Remove vacuum reservoir.
(6) Disconnect vacuum hose
INSTALLATION
(1) Connect vacuum hose.
(2) Install vacuum reservoir and tighten fasteners.
(3) Install PDC and bracket and tighten fasteners.
(4) Install coolant reservoir.
(5) Install PCM refer to Group 14, Fuel Injection
System.
(6) Connect the negative battery cable.
SPECIFICATIONS
TORQUE
DESCRIPTION
TORQUE
Vacuum Resevoir Screws . . . . . . 12 N·m (8.8 ft. lbs.)
Servo Mounting Bracket Nuts . 14 N·m (10.3 ft. lbs.)
Servo Mounting Bracket Bolts . . . . . . . . . . . 14 N·m
(10.3 ft. lbs.)
Servo Mounting Nuts . . . . . . . . 6.7 N·m (60 in. lbs.)
Fig. 7 Disconnecting Throttle Cable—Typical
8H - 8
VEHICLE SPEED CONTROL SYSTEM
300M
REMOVAL AND INSTALLATION (Continued)
TURN SIGNAL AND FLASHERS
CONTENTS
page
page
GENERAL INFORMATION
HAZARD WARNING SYSTEM . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1
DESCRIPTION AND OPERATION
COMBINATION FLASHER LOCATION . . . . . . . . . 1
DIAGNOSIS AND TESTING
MULTI-FUNCTION SWITCH TESTS . . . . . . . . . . 1
REMOVAL AND INSTALLATION
MULTI-FUNCTION SWITCH . . . . . . . . . . . . . . . . 3
GENERAL INFORMATION
INTRODUCTION
WARNING:
ON VEHICLES EQUIPPED WITH AIR-
BAG, SEE GROUP 8M, RESTRAINT SYSTEMS FOR
AIRBAG REMOVAL PROCEDURES.
The turn signals are part of the multi-function
switch. Which contains:
• Electrical circuitry for turn signals
• Hazard warning switch
• Headlamp beam select switch
• Headlamp optical horn
• Windshield wiper switch
• Pulse wipe and windshield washer switching
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 direction 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 deac-
tivated automatically. As the steering wheel returns to
the straight ahead position, a canceling 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.
HAZARD WARNING SYSTEM
The hazard warning system is actuated by a push
button located 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 top of the button. Push and release the
button to turn the hazard function ON or OFF. The
button will move out from the steering column in the
ON position and will remain in toward the column in
the OFF position.
DESCRIPTION AND OPERATION
COMBINATION FLASHER LOCATION
The Turn Signal and Hazard Warning Flasher is
combined into one unit called a Combination Flasher
(Combo-Flasher).
The
combo-flasher
controls
the
flashing of the hazard warning system and the turn
signal system. An inoperative bulb or incomplete
turn signal circuit will result in an increase in
flasher speed.
The
combo-flasher
is
mounted
to
the
in-line
bracket which is located to the right of the Junction
Block. The flasher can be removed by pulling in an
rearward direction. The left under panel silencer
duct must be removed to access the flasher. The com-
bo-flasher is black in color for ease of identification.
DIAGNOSIS AND TESTING
MULTI-FUNCTION SWITCH TESTS
The multi-function switch contains electrical circuitry
for turn signal, hazard warning, headlamp beam select,
headlamp optical horn, windshield wiper, pulse wipe,
and windshield washer switching. Refer to Group 8K,
Windshield Wiper and Washer Systems for Wiper and
Washer functions. This integrated switch assembly is
mounted to the left hand side of the steering column.
Should any function of the switch fail, the entire switch
assembly must be replaced. Refer to Combination
Flasher Diagnosis table.
To test the switch, the switch must first be
removed. Refer to Multi-function Switch Removal
and Installation procedures within this section.
300M
TURN SIGNAL AND FLASHERS
8J - 1
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