buttons CHRYSLER VOYAGER 1996 Service Manual

The instrument cluster is equipped with the follow-
ing warning lamps.
²Lift Gate Ajar
²Low Fuel Level
²Low Windshield Washer Fluid Level
²Cruise
²Battery Voltage
²Fasten Seat Belt
²Door Ajar
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
NS vehicle instrument clusters are equipped with a
self diagnostic test feature to help identify electronic
problems. Prior to any test, perform Self Diagnostic
Test. The self diagnostic system monitors the CCD
bus messages. If an electronic problem occurs, a
Diagnostic Trouble Code (DTC) will be displayed in
the odometer window of the cluster.
The following CCD bus messages are continuously
monitored by the diagnostic system:
²Body Control Module
²Powertrain Control Module
²Transmission Control Module, if equipped
HEADLAMP SWITCH
Using a Digital Multimeter, equipped with a diode
test to perform the Headlamp Switch Test below (Fig.
1).
Switch position possibilities are open (no continu-
ity), continuity, resistance value in ohms, or diode
test. Use the values in the third column to determine
meter setting. If Headlamp Switch is not within spec-
ifications replace as necessary.
The Chrysler Town and Country is available with
optional Automatic Headlamps. For diagnosis, refer
to the proper Body Diagnostic Procedures Manual.
SELF DIAGNOSTIC TEST
To activate self diagnostic program:
(1) With the ignition switch in the OFF position,
depress the TRIP and RESET buttons.
(2) While holding the TRIP and RESET button
turn the ignition switch to the ON position.
(3) Continue to hold the TRIP and RESET buttons
until the word CODE appears in the odometer win-
dows (about five seconds) then release the buttons. If
a problem exists, the system will display Diagnostic
Trouble Codes (DTC's). If no problem exists, the code
999 (End Test) will momentarily appear.
DIM TEST
When CHEC-0 is displayed in the odometer win-
dow, the cluster's vacuum fluorescent (VF) displayswill dim down. If the VF display brightness does no
change, a problem exists in the cluster.
Fig. 1 Headlamp Switch Test
8E - 2 INSTRUMENT PANEL AND SYSTEMSNS
DESCRIPTION AND OPERATION (Continued)

SELF DIAGNOSTIC TEST
With the ignition switch in the OFF position,
depress the TRIP and RESET buttons. While holding
the TRIP and RESET button turn the ignition switch
ON. Continue to hold the TRIP and RESET buttons
until the word CODE appears in the odometer win-
dows (about five seconds). If a problem exists, the
system will display diagnostic trouble codes. If no
problem exists the code 999 (End Test) will momen-
tarily appear.
DIM TEST
When CHEC-0 is displayed in the odometer win-
dow, the cluster's vacuum fluorescent (VF) displays
will dim down. If the VF display brightness does not
change, a problem exists in the cluster.
CLUSTER CALIBRATION TABLE
Speedometer Calibration Point
1 ...........................0Km/h (0 mph)
2 .........................40Km/h (20 mph)
3 .........................80Km/h (55 mph )
4 ........................120Km/h (75 mph)
Tachometer Calibration Point
1 ...................................0rpm
2 ................................1000 rpm
3 ................................3000 rpm
4 ................................4000 rpm
Fuel Gauge Calibration Point
1 ...............................Empty (E)
2 ................................1/8Filled
3 ................................1/4Filled
4..................................Full (F)
Temp Gauge Calibration Point
1 .................................Cold (C)
2 ..............................LowNormal
3 .............................High Normal
4 ..................................Hot(H)
Fig. 3 Headlamp Switch Test
INSTRUMENT CLUSTER DTC CHART
DTC DESCRIPTION
110 Memory Fault in cluster
111 Calibration fault in cluster
921 Odometer fault from BCM
940 No tachometer messages from BCM
NS/GSINSTRUMENT PANEL AND SYSTEMS 8E - 3
DIAGNOSIS AND TESTING (Continued)

TEST 2
Test 2 checks the antenna for an open circuit as
follows:
(1) Unplug the antenna coaxial cable connector
from the radio chassis.
(2) Connect one ohmmeter test lead to the tip of
the antenna mast. Connect the other test lead to the
center pin of the antenna coaxial cable connector.
(3) Continuity should exist (the ohmmeter should
only register a fraction of an ohm). High or infinite
resistance indicates damage to the base and cable
assembly. Replace the faulty base and cable, if
required.
TEST 3
Test 3 checks the condition of the vehicle body
ground connection. This test should be performed
with the battery positive cable removed from the bat-
tery. Disconnect both battery cables, the negative
cable first. Reconnect the battery negative cable and
perform the test as follows:
(1) Connect one ohmmeter test lead to the vehicle
fender. Connect the other test lead to the battery
negative post.
(2) The resistance should be less than (1) ohm.
(3) If the resistance is more than (1) ohm, check
the braided ground strap connected to the engine and
the vehicle body for being loose, corroded, or dam-
aged. Repair the ground strap connection, if required.
TEST 4
Test 4 checks the condition of the ground between
the antenna base and the vehicle body as follows:(1) Connect one ohmmeter test lead to the vehicle
fender. Connect the other test lead to the outer crimp
on the antenna coaxial cable connector.
(2) The resistance should be less then (1) ohm.
(3) If the resistance is more then (1) ohm, clean
and/or tighten the antenna base to fender mounting
hardware.
AUDIO SYSTEM
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.
RADIO
If the vehicle is equipped with remote radio
switches located on the backs of the steering wheel
spokes, and the problem being diagnosed is related to
one of the symptoms listed below, be certain to check
the remote radio switches and circuits as described
in this group, prior to attempting radio diagnosis or
repair.
²Stations changing with no remote radio switch
input
²Radio memory presets not working properly
²Volume changes with no remote radio switch
input
²Remote radio switch buttons taking on other
functions
²CD player skipping tracks
²Remote radio switch inoperative.
For circuit descriptions and diagrams, refer to
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 PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
CAUTION: The speaker output of the radio is a
ªfloating groundº system. Do not allow any speaker
lead to short to ground, as damage to the radio
may result.
Fig. 7 Antenna Tests
8F - 4 AUDIO SYSTEMSNS
DIAGNOSIS AND TESTING (Continued)

VEHICLE SPEED CONTROL SYSTEM
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DESCRIPTION AND OPERATION
AUTOMATIC SPEED CONTROL OVERSPEED
REDUCTION........................... 2
POWERTRAIN CONTROL MODULE.......... 2
SERVO CABLE.......................... 2
SPEED CONTROL SERVO.................. 1
SPEED CONTROL SWITCHES.............. 1
STOP LAMP SWITCH..................... 2
VACUUM RESERVOIR.................... 3
VEHICLE SPEED AND DISTANCE............ 3
DIAGNOSIS AND TESTING
CHECKING FOR DIAGNOSTIC CODES........ 3
ELECTRICAL TESTS AT POWERTRAIN
CONTROL MODULE..................... 6OVERSHOOT/UNDERSHOOT FOLLOWING
SPEED CONTROL SET................... 3
ROAD TEST............................ 3
SERVO VACUUM TEST.................... 6
SPEED CONTROL ELECTRICAL TEST........ 4
SPEED CONTROL SWITCH TEST............ 6
STOP LAMP SWITCH TEST................ 6
VACUUM SUPPLY TEST................... 8
VEHICLE SPEED SENSOR................. 8
REMOVAL AND INSTALLATION
POWERTRAIN CONTROL MODULE.......... 9
SPEED CONTROL CABLE.................. 9
SPEED CONTROL SERVO.................. 8
SPEED CONTROL SWITCHES.............. 9
STOP LAMP SWITCH.................... 9
VACUUM RESEROIR..................... 10
VEHICLE SPEED SENSOR................ 10
GENERAL INFORMATION
INTRODUCTION
The speed control system is electronically con-
trolled and vacuum operated. The electronic control
is integrated into the powertrain control module,
located next to battery. The controls are located on
the steering wheel and consist of the ON/OFF, SET,
RESUME/ACCEL, CANCEL and DECEL buttons
(Fig. 1).
DESCRIPTION AND OPERATION
SPEED CONTROL SERVO
The servo unit consists of a solenoid valve body,
and a vacuum chamber. The PCM controls the sole-
noid valve body. The solenoid valve body controls the
application and release of vacuum to the diaphragm
of the vacuum servo. The servo unit cannot be
repaired and is serviced only as a complete assembly.
SPEED CONTROL SWITCHES
There are two separate switch pods that operate
the speed control system. The steering-wheel-
mounted switches use multiplexed circuits to provide
inputs to the PCM for ON, OFF, RESUME, ACCEL-
ERATE, SET, DECEL and CANCEL modes. Refer to
the owner's manual for more information on speed
control switch functions and setting procedures.
When speed control is selected by depressing the
ON switch, the PCM allows a set speed to be stored
in RAM for speed control. To store a set speed,
depress the SET switch while the vehicle is moving
at a speed between 30 and 85 mph. In order for the
speed control to engage, the brakes cannot be
applied, nor can the gear selector be indicating the
transmission is in Park or Neutral.
The speed control can be disengaged manually by:
²Stepping on the brake pedal
Fig. 1 Speed Control Switches
NSVEHICLE SPEED CONTROL SYSTEM 8H - 1

REMOTE KEYLESS ENTRY
INDEX
page page
DESCRIPTION AND OPERATION
INTRODUCTION......................... 5
VEHICLE ACCESS CODE (VAC)
PROGRAMMING........................ 5
DIAGNOSIS AND TESTING
RKE DIAGNOSTICS....................... 5
SERVICE PROCEDURES
HORN CHIRP DISABLE OR ENABLE.......... 6REMOVAL AND INSTALLATION
RKE MODULE........................... 6
ADJUSTMENTS
PROGRAMMING RKE MODULE.............. 6
SPECIFICATIONS
RKE TRANSMITTER BATTERY.............. 6
RKE TRANSMITTER RANGE................ 6
DESCRIPTION AND OPERATION
INTRODUCTION
The key fob transmitter has three buttons to actu-
ate and program the Remote Keyless Entry (RKE)
system (Fig. 1).
²UNLOCK: Pressing the UNLOCK button once
will unlock the driver door and activate the illumi-
nated entry system and disarm Vehicle Theft Secu-
rity System, if equipped. Pressing the UNLOCK
button twice within five seconds will unlock all doors
and activate the illuminated entry system.
²LOCK: Pressing the LOCK button locks all
doors and sounds horn (chirp) and arm the Vehicle
Theft Security System. The chirp verifies the door
lock operation.
²PANIC: Pressing the PANIC button sounds the
horns at half second intervals, flashes the exterior
lamps, and turns ON the interior lamps. The panic
alarm will remain on for three minutes, or until the
PANIC button is actuated again or the ignition
switch is turned to the RUN position.
²The Remote Keyless Entry Module is capable of
retaining the transmitter Vehicle Access Code(s)
(VAC) in its memory even after vehicle power has
been interrupted.
²The RKE system activates the optional memory
seat and mirror system, if equipped. Two primary
key fob transmitters can be programmed to actuate
memory seat and mirror setting 1 or 2. Two addi-
tional key fob transmitters can be added, but they
will not be able to operate the memory seat and mir-
ror system. Refer to Group 8R, Power Seats and
Group 8T, Power Mirrors for memory system infor-
mation.
VEHICLE ACCESS CODE (VAC) PROGRAMMING
The RKE module is capable of retaining up to four
different Vehicle Access Codes. Whenever the vehicle
battery power is interrupted the RKE Module willretain all vehicle access codes in its memory. When
replacing or adding a key fob transmitter (maximum
4) a functional key fob transmitter is required to pro-
gram the RKE Module to accept the new Vehicle
Access Code. If a functional key fob transmitter is
not available, a scan tool (DRB) can be used to pro-
gram the RKE Module. Refer to the proper Body
Diagnostic Procedures manual for Vehicle Access
Code programming procedures using a scan tool.
DIAGNOSIS AND TESTING
RKE DIAGNOSTICS
Refer to Group 8W, Wiring Diagrams for circuit
information and component locations. Refer to the
proper Body Diagnostic Procedures manual for test-
ing the Remote Keyless Entry system using a scan
tool (DRB). Also refer to other interrelated systems
groups within this manual:
²Group 8Q, Vehicle Theft Security System
²Group 8R, Power Seats
²Group 8T, Power Mirrors
Fig. 1 Key Fob Transmitter
NSPOWER DOOR LOCKS 8P - 5

ACTIVATION-Press and hold the S and 1 buttons
for 5 seconds to enter diagnostic mode 1. This mode
is exited at the completion of the mode 1 tasks or
upon grounding the RKE input to the Memory Seat/
Mirror Module.
Mode 1 will:
²Clear all soft limits to their default hard limit
values
²Load memory 1 with default settings corre-
sponding to horizontal rearward, front down, rear
down, and recliner rearward positions²Load memory 2 with default settings corre-
sponding to horizontal forward, front up, rear up,
and recliner forward positions
MODE 2
Diagnostic mode 2 provides a way to determine if
the seat/mirror motors and position sensors are con-
nected properly.
ACTIVATION-Press and hold the S and 2 buttons
for 5 seconds to enter diagnostic mode 2. This mode
is exited after 5 seconds of switch inactivity or upon
grounding the RKE input by moving the transmis-
sion out of the PARK position.
Mode 2 will:
²Place the seat and mirror motors at their mid-
point
²When a single axis of seat or mirror motion is
requested by pressing a switch, the corresponding
motor is energized. This tests switch input and motor
output
²When the switch is released, the motor will
automatically return to its original position. If the
corresponding sensor is out of range, then the motor
will not return to its original position. This tests the
integrity of the sensors and motor outputs. Refer to
(Fig. 3), (Fig. 4), (Fig. 5) and (Fig. 6) for module con-
nector call outs.
Fig. 3 Memory Seat/Mirror Module
Fig. 4 Memory Seat/Mirror Module 10-Way Connector
8R - 6 POWER SEATSNS
DIAGNOSIS AND TESTING (Continued)

OVERHEAD CONSOLE
CONTENTS
page page
DESCRIPTION AND OPERATION
COMPASS MINI-TRIP COMPUTER (CMTC).... 1
COMPASS/TEMPERATURE MINI TRIP
COMPUTER SELF-DIAGNOSTIC TEST....... 1
THERMOMETER AND COMPASS............ 2
UNIVERSAL TRANSMITTER................ 2
DIAGNOSIS AND TESTING
READING/DOME LAMP DIAGNOSIS......... 3
TRAVELER MESSAGES.................... 3
UNIVERSAL TRANSMITTER................ 3
SERVICE PROCEDURES
COMPASS CALIBRATION PROCEDURE (FAST
METHOD)............................. 4
COMPASS CALIBRATION PROCEDURE....... 4
DEMAGNETIZING PROCEDURE............. 4UNIVERSAL TRANSMITTER................ 5
REMOVAL AND INSTALLATION
AMBIENT TEMPERATURE SENSOR.......... 5
COMPASS MINI-TRIP COMPUTER (CMTC)
LAMP BULBS......................... 6
COMPASS MINI-TRIP COMPUTER (CMTC)
MODULE............................. 6
FRONT HEADER READING/COURTESY LAMP . . 6
OVERHEAD CONSOLE.................... 6
READING/COURTESY LAMP ASSEMBLY...... 7
READING/COURTESY LAMP............... 6
UNIVERSAL TRANSMITTER................ 7
SPECIAL TOOLS
SPECIAL TOOL.......................... 9
DESCRIPTION AND OPERATION
COMPASS/TEMPERATURE MINI TRIP COMPUTER
SELF-DIAGNOSTIC TEST
The CMTC is capable of performing a diagnostic
self check on many of its internal functions. CMTC
diagnostics may be performed using a scan tool
(DRB) and the proper Body Diagnostic Procedures
manual or by the following procedure.
(1) With the ignition switch in the OFF position,
press both the US/M and STEP button.
(2) Turn ignition switch to the ON position.
The CMTC will perform internal checks while
lighting all segments of the vacuum florescent dis-
play. Upon completion of the internal check, the
CMTC will display.
²PASS
²FAIL
²CCd
If any segment of the CMTC fails to light replace
the module.
If FAIL is displayed, replace the module.
If CCd is displayed, check the CCD and Body Con-
trol Module (BCM) for proper operation, refer to the
appropriate diagnostic test procedures manual If the
CCD and the BCM are OK, replace the CMTC mod-
ule.
For additional diagnostic information on the CMTC
and for identifying CMTC problems, refer to the
proper Body Diagnostic Procedures manual.
COMPASS MINI-TRIP COMPUTER (CMTC)
The Compass Mini-Trip Computer (CMTC) system
is located in the overhead console. CMTC consists of
a electronic control module with a vacuum fluores-
cent display (VFD) and function switches. The CMTC
consists of a electronic module that displays compass,
trip computer, and temperature features. Actuating
the STEP switch will cause the CMTC to change
mode of operation when ignition is ON. Example:
²Compass/Temperature
²Trip odometer (ODO)
²Average miles per gallon (ECO)
²Instant miles per gallon (ECO)
²Distance to empty (DTE)
²Elapsed time (ET)
²Off
The CMTC module in the overhead console has
three buttons used to select various functions. The
CMTC selector buttons will not operate until the
ignition is in the RUN position (Fig. 1).
When the ignition switch is first turned to the
RUN position the CMTC display;
²Blanks momentarily
²All segments of the VFD will light for one sec-
ond
²Blanks momentarily
²Returns to the last mode setting selected before
the ignition was last switched OFF.
NSOVERHEAD CONSOLE 8V - 1

²Rotate your hand-held transmitter end-over-end
and train again. For best results, place the end oppo-
site from the battery compartment against the uni-
versal transmitter while training.
²The frequency of the hand-held transmitter may
not be in the desired frequencies between 286MHz
and 399MHz set by FCC.
SERVICE PROCEDURES
COMPASS CALIBRATION PROCEDURE
Variance is the difference between magnetic North
and geographic North (Fig. 4). To adjust the compass
variance set the CMTC to Compass/Temperature
mode and press RESET buttons for 5 seconds. The
symbol VAR and the current variance zone number
will be displayed. Press the STEP button to select
the proper variance zone as shown in (Fig. 4). Press
the US/Metric button to save the new variance zone
and normal CMTC operation. If both buttons are
held for 10 seconds instead 5 seconds the CMTC will
set variance to 8 and enter the fast calibration mode.
COMPASS CALIBRATION PROCEDURE (FAST
METHOD)
When the compass is subjected to excessive mag-
netic fields, the CMTC automatically enters a fast
calibration mode where is tries to compensate for the
large magnetic shifts.If the compass is inaccurate, appears to be inaccu-
rate and the CAL is not illuminated the fast calibra-
tion mode may be manually entered by using the
following procedure.
(1) Set the CMTC to Compass/Temperature mode
and press the reset button for 10 continuous seconds.
Manual activation of the fast calibration is generally
not required.
(2) Compass variance sets to the default of 8 after
the fast calibration is manually activated.
(3) Complete the compass variance setting proce-
dure by referring to the Compass Variance Procedure
in this section
(4) Drive the vehicle in three 360É turns in an area
free from large metal objects. If the CAL symbol
remains lit after completing this step, the roof panel
may need demagnetizing
DEMAGNETIZING PROCEDURE
A magnetic field can adversely affect the compass.
Magnetic interference can magnetize the roof panel.
Magnetizing can be caused by placing a permanent
magnet in contact with the roof panel. Example:
²Magnetic Base Antenna
²Magnetic screwdriver
²Audio speakers
²Refrigerator magnets.
²Pizza Signs
²Bubble gum flasher lights
Fig. 4 Variance Settings
8V - 4 OVERHEAD CONSOLENS
DIAGNOSIS AND TESTING (Continued)

Removing magnetic interfering objects will usually
restore normal compass operation. If the compass
display remains blank while the CAL label is illumi-
nated, then the roof panel requires demagnetizing. To
demagnetize use Special Tool 6029 for demagnetizing
the roof panel. The demagnetizing procedure will
demagnetize the roof and mounting screws in the
overhead console. It is important that you follow the
instructions below exactly. The mounting screws and
the mounting brackets around the compass area are
steel, and therefore aid in the demagnetizing of the
roof panel.
(1) Be sure the ignition switch is in the OFF posi-
tion before you begin the demagnetize procedure.
(2) Plug the demagnetizing tool into a standard
110/115 volt AC outlet, keeping the demagnetizing
tool at least 12 inches away from the compass area
when plugging it in.
(3) Slowly approach and contact the console
mounting screw with the plastic coated tip of the tool
for at least two seconds.
(4) With the demagnetizing tool still energized,
slowly back it away from the screw until the tip is at
least 12 inches from the screw head.
(5) Repeat the last step with all the console
mounting screws.
(6) After you have pulled at least 12 inches from
the last screw, remove the demagnetizing tool from
inside vehicle and disconnect it from the electrical
outlet.
(7) Place an 8 1/2 X 11 inch piece of paper length-
wise on the roof of vehicle directly above compass.
The purpose of the paper is to protect the roof panel
from scratches and define the area to be demagne-
tized.
(8) Plug in the demagnetizing tool, keeping it at
least two feet away from the compass unit.
(9) Slowly approach the center of the roof panel at
the windshield with the demagnetizing tool plugged
in.
(10) Contact the roof panel with the tip of the tool.
Using slow sweeping motions of 1/2 inch between
sweeps. Move the tool approximately four inches
either side of the center line and at least 11 inches
back from the windshield.
(11) With the demagnetizing tool still energized,
slowly back away from the roof panel until the tip is
at least two feet from the roof before unplugging the
tool.
(12) Recalibrate compass, refer to the compass cal-
ibration procedure in this section.
UNIVERSAL TRANSMITTER
TRAINING
(1) Turn off the engine.(2) Erase the factory test codes by pressing the
two outside buttons. Release the buttons when the
red light begins to flash (about 20 seconds).
(3) Choose one of the three buttons to train. Place
the hand-held transmitter within one inch of the uni-
versal transmitter and push the buttons on both
transmitters. The red light on the universal trans-
mitter will begin to flash slowly.
(4) When the red light on the universal transmit-
ter begins to flash rapidly (this may take as long as
60 seconds), release both buttons. Your universal
transmitter is now ªtrainedº. To train the other but-
tons, repeat Step 3 and Step 4. Be sure to keep your
hand-held transmitter in case you need to retrain the
universal transmitter.
ERASING
To erase the universal transmitter codes, simply
hold down the two outside buttons until the red LED
begins to flash.
NOTE: Individual channels cannot be erased. Eras-
ing the transmitter codes will erase ALL pro-
grammed codes.
REMOVAL AND INSTALLATION
AMBIENT TEMPERATURE SENSOR
REMOVAL
(1) Raise and support vehicle on safety stands.
(2) From behind front bumper fascia, remove
screw holding sensor to radiator closure panel.
(3) Remove sensor from vehicle.
INSTALLATION
For installation, reverse the above procedures.
Fig. 5 Universal Transmitter
NSOVERHEAD CONSOLE 8V - 5
SERVICE PROCEDURES (Continued)

HEATING AND AIR CONDITIONING
CONTENTS
page page
FRONT HEATING AND AIR CONDITIONING
SYSTEM............................... 1REAR HEATING AND AIR CONDITIONING
SYSTEM.............................. 41
FRONT HEATING AND AIR CONDITIONING SYSTEM
INDEX
page page
GENERAL INFORMATION
INTRODUCTION......................... 2
SAFETY PRECAUTIONS AND WARNINGS...... 2
DESCRIPTION AND OPERATION
A/C PRESSURE TRANSDUCER.............. 2
A/C SERVICE PORTS..................... 2
AIR DISTRIBUTION DUCTS................. 2
COMPRESSOR HIGH-PRESSURE RELIEF
VALVE................................ 3
CONDENSATE DRAIN..................... 3
ENGINE COOLING SYSTEM REQUIREMENTS . . 3
EVAPORATOR PROBE..................... 3
HANDLING TUBING AND FITTINGS........... 3
HVAC CONTROL MODULE................. 4
REAR BLOWER SPEED SWITCH............ 3
SIDE DOOR HEATER A/C OUTLETS.......... 4
SIDE WINDOW DEMISTER................. 4
SYSTEM AIRFLOW....................... 4
SYSTEM OIL LEVEL...................... 5
DIAGNOSIS AND TESTING
A/C PERFORMANCE TEST................ 12
A/C PRESSURE TRANSDUCER............. 12
ACTUATOR CALIBRATION/DIAGNOSTICS AND
COOLDOWN TEST...................... 6
BLOWER MOTOR AND WHEEL ASSEMBLY.... 13
COMPRESSOR CLUTCH/COIL.............. 13
COMPRESSOR NOISE DIAGNOSIS.......... 13
EXPANSION VALVE...................... 13
HEATER PERFORMANCE TEST............ 15
HVAC CONTROL DIAGNOSTIC CONDITIONS . . . 9
SYSTEM CHARGE LEVEL TEST............ 16SERVICE PROCEDURES
CHARGING REFRIGERANT SYSTEM........ 17
EVACUATING REFRIGERANT SYSTEM....... 18
R-134a REFRIGERANT................... 16
STICKING HVAC CONTROL MODULE PUSH
BUTTONS............................ 19
SYSTEM LEAK CHECKING................ 19
THERMOCOUPLE PROBE................. 19
REMOVAL AND INSTALLATION
A/C PRESSURE TRANSDUCER............. 20
A/C SERVICE PORTS.................... 20
BLEND-AIR DOOR ACTUATOR............. 20
BLOWER MOTOR AND WHEEL ASSEMBLY.... 21
BLOWER MOTOR RESISTOR BLOCK........ 21
BLOWER MOTOR WHEEL................. 22
COMPRESSOR CLUTCH/COIL.............. 23
COMPRESSOR......................... 23
CONDENSER ASSEMBLY................. 25
DISCHARGE LINE....................... 26
EVAPORATOR PROBE.................... 27
EXPANSION VALVE...................... 28
FILTER-DRIER ASSEMBLY................. 28
HEATER A/C UNIT HOUSING............... 29
HEATER CORE......................... 30
HEATER HOSES........................ 31
LIQUID LINE........................... 32
MODE DOOR ACTUATOR................. 32
RECIRC DOOR ACTUATOR................ 34
SIDE WINDOW DEMISTER DUCTS.......... 33
SUCTION LINE.......................... 33
DISASSEMBLY AND ASSEMBLY
HEATER A/C UNIT RECONDITION........... 34
NSHEATING AND AIR CONDITIONING 24 - 1