change wheel CHRYSLER CARAVAN 2005 Owner's Guide

CAUTION: Over-torquing the sensor nut by as little
as 12 N´m (106 in. lbs.) may result in sensor sepa-
ration from the valve stem. Under this condition,
the sensor may still function, however, the condi-
tion should be corrected immediately.
(4) Mount tire on wheel following tire changer
manufacturers instructions, paying special attention
to the following to avoid damaging tire pressure sen-
sor:
(a) Rotating Wheel Tire Changers - Once the
wheel is mounted to the changer, position the sen-
sor valve stem approximately 210É from the head
of the changer in a clockwise direction before rotat-
ing the wheel (also in a clockwise direction) to
mount the tire (Fig. 19). Use this procedure on
both the upper and lower tire beads.
(b) Rotating Tool Tire Changers - Position the
wheel on the changer so that the sensor valve stem
is approximately 210É from the head of the changer
in a clockwise direction from the mounting end of
the tool (Fig. 20) Make sure the sensor is clear of
the lower bead breaker area to avoid damaging the
sensor when the breaker rises (Fig. 20). Rotate the
tool in a counterclockwise direction to mount the
tire. Use this procedure on both the upper and
lower tire beads.
(5) Install wheel and tire assembly on vehicle.
(Refer to 22 - TIRES/WHEELS - INSTALLATION)
Fig. 18 Sensor Mounting To Wheel
1 - TIRE PRESSURE SENSOR
2 - WHEEL
3 - NUT
Fig. 19 Mounting Tire Using Rotating Wheel
Machine
1 - HEAD OF CHANGER LOCATED HERE
2 - VALVE STEM
Fig. 20 Mounting Tire Using Rotating Tool Machine
1 - VALVE STEM
2 - MOUNTING END OF TOOL
3 - BEAD BREAKER (KEEP CLEAR OF SENSOR)
22 - 12 TIRES/WHEELSRS
SENSOR - TPM (Continued)

REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the center bezel from the instrument
panel (Refer to 23 - BODY/INSTRUMENT PANEL/
INSTRUMENT PANEL CENTER BEZEL -
REMOVAL).
(3) Place the instrument panel center bezel unit
face down on a suitable work surface. Take the
proper precautions to protect the center bezel from
cosmetic damage.
(4) If the vehicle is equipped with the optional
Automatic Temperature Control (ATC) system, dis-
connect the infrared sensor jumper harness connector
from the receptacle on the back of the A/C-heater
control (Fig. 9).
(5) Remove the six screws that secure the A/C-
heater control to the back of the instrument panel
center bezel.
(6) Remove the A/C-heater control from the instru-
ment panel center bezel.
INSTALLATION
(1) Position the A/C-heater control onto the back of
instrument panel center bezel.
(2) Install the six screws that secure the A/C-
heater control to the back of the instrument panel
center bezel. Tighten the screws to 2 N´m (17 in.
lbs.).
(3) If the vehicle is equipped with the optional
ATC system, reconnect the infrared sensor jumper
harness connector to A/C-heater control.
(4) Install the center bezel onto the instrument
panel (Refer to 23 - BODY/INSTRUMENT PANEL/
INSTRUMENT PANEL CENTER BEZEL - INSTAL-
LATION).
(5) Reconnect the battery negative cable.
A/C PRESSURE TRANSDUCER
DESCRIPTION
The A/C pressure transducer is a switch that is
installed on a fitting located on the refrigerant liquid
line between the receiver/drier and the expansion
valve in the right rear corner of the engine compart-
ment. An internally threaded hex fitting on the
transducer connects it to the externally threaded
Schrader-type fitting on the liquid line. A rubber
O-ring seals the connection between the transducer
and the liquid line fitting. Three terminals within a
molded plastic connector receptacle on the top of the
transducer connect it to the vehicle electrical system
through a wire lead and connector of the headlamp
and dash wire harness.
The A/C pressure transducer cannot be adjusted or
repaired and, if faulty or damaged, it must be
replaced.
OPERATION
The A/C pressure transducer monitors the pres-
sures in the high side of the refrigerant system
through its connection to a fitting on the liquid line.
The transducer will change its internal resistance in
response to the pressures it monitors. The power-
train control module (PCM) provides a five volt ref-
erence signal and a sensor ground to the transducer,
then monitors the output voltage of the transducer
on a sensor return circuit to determine refrigerant
pressure. The PCM is programmed to respond to this
and other sensor inputs by controlling the operation
of the A/C compressor clutch and the radiator cooling
fan to help optimize air conditioning system perfor-
Fig. 9 A/C-Heater Control ± ATC shown, MTC typical
1 - INFRARED SENSOR CONNECTOR (ATC ONLY)
2 - INFRARED SENSOR HARNESS (ATC ONLY)
3 - A/C-HEATER CONTROL
4 - SCREW (6)
5- INSTRUMENT PANEL CENTER BEZEL
24 - 20 CONTROLS - FRONTRS
A/C HEATER CONTROL (Continued)

BLEND DOOR ACTUATOR
DESCRIPTION
The blend door actuators are reversible, 12-volt
Direct Current (DC), servo motors. Models with the
single zone heater and air conditioner system have a
single blend air door, which is controlled by a single
blend door actuator. Models with the optional dual
zone front heater and air conditioner system have
dual blend air doors, which are controlled by two
blend door actuators. The single zone blend door
actuator is located on the driver's side end of the
HVAC housing, close to the middle of the distribution
housing. In the dual zone system, the same blend
door actuator used for the single zone system
becomes the passenger blend door actuator, and is
mechanically connected to only the passenger side
blend air door. In the dual zone system, a second sep-
arate blend door actuator is also located on the
driver side end of the HVAC housing, close to the
middle of the distribution housing, and is mechani-
cally connected to only the driver's side blend air
door.
The blend door actuators are interchangeable with
each other, as well as with the actuators for the
mode door and the recirculation air door. Each actua-
tor is contained within an identical black molded
plastic housing with an integral wire connector
receptacle. Two integral mounting tabs allow the
actuator to be secured with two screws to the distri-
bution housing. Each actuator also has an identical
output shaft with splines that connects it to the link-
age that drives the proper blend air door. The blend
door actuators do not require mechanical indexing to
the blend door linkage, as they are electronically cal-
ibrated by the heater-A/C control module.
OPERATION
The blend door actuators are connected to the A/C-
heater control through the vehicle electrical system
by a dedicated two-wire lead and connector of the
HVAC wire harness. The blend door actuator(s) can
move the blend-air door(s) in two directions. When
the A/C-heater control pulls the voltage on one side
of the motor connection high and the other connec-
tion low, the blend-air door will move in one direc-
tion. When the A/C-heater control reverses the
polarity of the voltage to the motor, the blend-air
door moves in the opposite direction.
When the A/C-heater control makes the voltage to
both connections high or both connections low, the
blend-air door stops and will not move. The A/C-
heater control uses a feedback signal positioning sys-
tem to monitor the operation and relative position of
the blend door actuator(s) and the blend-air door(s).
The A/C-heater control learns the blend-air door stoppositions during the calibration procedure and will
store a diagnostic trouble code (DTC) for any prob-
lems it detects in the blend door actuator circuits.
The blend door actuators are diagnosed using a
scan tool (Refer to 24 - HEATING & AIR CONDI-
TIONING - DIAGNOSIS AND TESTING and to 24 -
HVAC Electrical Diagnostics for more information).
The blend door actuators cannot be adjusted or
repaired and, if faulty or damaged, they must be
replaced.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
NOTE: The single zone heating and air conditioning
system is equipped with a single blend door actua-
tor. The dual zone system has two blend door
actuators, one for the driver side blend air door and
one for the passenger side blend air door. The
same service procedures can be used for each of
these actuators.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the silencer from beneath the driver
side end of the instrument panel. (Refer to 23 -
BODY/INSTRUMENT PANEL/INSTRUMENT
PANEL SILENCER - REMOVAL).
(3) Disconnect the wire harness connector from the
blend door actuator(s) (Fig. 11).
(4) Remove the two screws that secure the blend
door actuator to the distribution housing.
(5) Remove the blend door actuator.
INSTALLATION
(1) Position the blend door actuator onto the distri-
bution housing. If necessary, rotate the actuator
slightly to align the splines on the actuator output
shaft with those in the blend air door linkage.
(2) Install the two screws that secure the blend
door actuator to the housing. Tighten the screws to 2
N´m (17 in. lbs.).
24 - 22 CONTROLS - FRONTRS

each of which will reduce the current flow through
the blower motor to change the blower motor speed.
The blower motor switch in the manual heater-A/C
system directs the ground path for the blower motor
through the correct resistor wire to obtain the
selected speed.
With the blower motor switch in the lowest speed
position, the ground path for the motor is applied
through all of the resistor wires. Each higher speed
selected with the blower motor switch applies the
blower motor ground path through fewer of the resis-
tor wires, increasing the blower motor speed.
The blower motor resistor cannot be adjusted or
repaired and, if faulty or damaged, it must be
replaced.
DIAGNOSIS AND TESTING
FRONT BLOWER MOTOR RESISTOR BLOCK
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
For circuit descriptions and diagrams, refer to the
appropriate wiring information. The wiring informa-
tion includes wiring diagrams, proper wire and con-
nector repair procedures, further details on wire
harness routing and retention, as well as pin-out and
location views for the various wire harness connec-
tors, splices and grounds.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the glove box from the instrument
panel (Refer to 23 - BODY/INSTRUMENT PANEL/
GLOVE BOX - REMOVAL).
(3) Disconnect the two wire harness connectors
from the blower motor resistor block.
(4) Check for continuity between each of the
blower motor switch input terminals of the resistor
and the resistor output terminal. In each case there
should be continuity. If OK, repair the wire harness
circuits between the blower motor switch and the
blower motor resistor, blower motor or blower motorrelay as required. If not OK, replace the faulty
blower motor resistor block.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
WARNING: THE BLOWER MOTOR RESISTOR
BLOCK MAY GET VERY HOT DURING NORMAL
OPERATION. IF THE BLOWER MOTOR WAS
TURNED ON PRIOR TO SERVICING THE BLOWER
MOTOR RESISTOR BLOCK, WAIT FIVE MINUTES
TO ALLOW THE BLOWER MOTOR RESISTORS TO
COOL BEFORE PERFORMING DIAGNOSIS OR SER-
VICE. FAILURE TO TAKE THIS PRECAUTION CAN
RESULT IN PERSONAL INJURY.
CAUTION: Do not operate the blower motor with the
blower motor resistor removed from the circuit.
Failure to take this precaution can result in vehicle
damage.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the glove box from the instrument
panel (Refer to 23 - BODY/INSTRUMENT PANEL/
GLOVE BOX - REMOVAL).
(3) Disconnect the two wire harness connectors
from the blower motor resistor block (Fig. 14).
(4) Remove the two screws that secure the blower
motor resistor block to the HVAC housing.
(5) Remove the resistor block from the HVAC
housing.
INSTALLATION
(1) Position the blower motor resistor block into
the HVAC housing.
(2) Install the two screws that secure the blower
motor resistor block to the HVAC housing. Tighten
the screws to 2 N´m (17 in. lbs.).
(3) Connect the two wire connectors to the resistor
block.
RSCONTROLS - FRONT24-25
BLOWER MOTOR RESISTOR BLOCK (Continued)

MODE DOOR ACTUATOR
DESCRIPTION
The mode door actuator is a reversible, 12-volt
Direct Current (DC), servo motor. The single mode
door actuator is located on the driver's side end of
the HVAC housing, close to the top of the distribution
housing. The mode door actuator is mechanically con-
nected to the mode door.
The mode door actuator is interchangeable with
the actuators for the blend air door(s) and the recir-
culation air door. Each actuator is contained within
an identical black molded plastic housing with an
integral wire connector receptacle. Two integral
mounting tabs allow the actuator to be secured with
two screws to the distribution housing. Each actuator
also has an identical output shaft with splines that
connects it to the linkage that drives the mode door.
The mode door actuator does not require mechanical
indexing to the mode door linkage, as it is electroni-
cally calibrated by the heater-A/C control module.
OPERATION
The mode door actuator is connected to the A/C-
heater control through the vehicle electrical system
by a dedicated two-wire lead and connector from the
HVAC wire harness. The mode door actuator can
move the mode door in two directions. When the A/C-
heater control pulls the voltage on one side of the
motor connection high and the other connection low,
the mode door will move in one direction. When the
A/C-heater control reverses the polarity of the volt-
age to the motor, the mode door moves in the oppo-
site direction. When the A/C-heater control makes
the voltage to both connections high or both connec-
tions low, the mode door stops and will not move.
These same motor connections also provide a feed-
back signal to the A/C-heater control. This feedback
signal allows the A/C-heater control to monitor the
operation and relative position of the mode door
actuator and the mode door. The A/C-heater control
learns the mode door stop positions during the cali-
bration procedure and will store a diagnostic trouble
code (DTC) for any problems it detects in the mode
door actuator circuits.
The mode door actuator can be diagnosed using a
DRBIIItscan tool. Refer to Body Diagnostic Proce-
dures for more information. The mode door actuator
cannot be adjusted or repaired and, if damaged or
faulty, it must be replaced.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the silencer from beneath the driver
side end of the instrument panel (Refer to 23 -
BODY/INSTRUMENT PANEL/INSTRUMENT
PANEL SILENCER - REMOVAL).
(3) Disconnect the wire harness connector from the
mode door actuator (Fig. 20).
(4) Remove the two screws that secure the mode
door actuator to the HVAC distribution housing.
(5) Remove the mode door actuator from the distri-
bution housing.
Fig. 20 Mode Door Actuator - LHD Shown, RHD
Typical
1 - WIRE HARNESS CONNECTOR
2 - MODE DOOR ACTUATOR
3 - SCREW (2)
4 - DRIVER BLEND DOOR ACTUATOR (DUAL-ZONE)
5 - HEATER CORE
6 - BLEND DOOR ACTUATOR (SINGLE ZONE) OR PASSENGER
BLEND DOOR ACTUATOR (DUAL-ZONE)
RSCONTROLS - FRONT24-29

INSTALLATION
(1) Position the mode door actuator onto the HVAC
distribution housing. If necessary, rotate the actuator
slightly to align the splines on the actuator output
shaft with those in the mode door linkage.
(2) Install the two screws that secure the mode
door actuator to the distribution housing. Tighten the
screws to 2 N´m (17 in. lbs.).
(3) Connect the wire harness connector to the
mode door actuator.
(4) Install the silencer under the driver side end of
the instrument panel (Refer to 23 - BODY/INSTRU-
MENT PANEL/INSTRUMENT PANEL SILENCER -
INSTALLATION).
(5) Reconnect the negative battery cable.
(6) Perform the A/C-heater control calibration pro-
cedure (Refer to 24 - HEATING & AIR CONDITION-
ING/CONTROLS - FRONT/A/C-HEATER CONTROL
- STANDARD PROCEDURE - HEATER-A/C CON-
TROL CALIBRATION).
POWER MODULE - BLOWER
MOTOR
DESCRIPTION
A blower motor power module is used on this
model when it is equipped with the optional Auto-
matic Temperature Control (ATC) system. Models
equipped with the standard manual heater-A/C sys-
tem use a blower motor resistor block, instead of the
blower motor power module (Refer to 24 - HEATING
& AIR CONDITIONING/CONTROLS/BLOWER
MOTOR RESISTOR BLOCK - DESCRIPTION).
The blower motor power module is mounted to the
rear of the HVAC housing, directly behind the glove
box opening in the instrument panel. The module
consists of a molded plastic mounting plate with two
integral connector receptacles. Concealed behind the
mounting plate is the power module electronic cir-
cuitry and a large finned, heat sink. The blower
motor power module is accessed for service by remov-
ing the glove box from the instrument panel.
OPERATION
The blower motor power module is connected to the
vehicle electrical system through a dedicated lead
and connector from the instrument panel wire har-
ness. A second connector receptacle receives a wire
lead connector from the blower motor. The blower
motor power module allows the microprocessor-based
Automatic Temperature Control (ATC) heater-A/C
control module to calculate and provide infinitely
variable blower motor speeds based upon either man-
ual blower switch input or the ATC programming
using a Pulse Width Modulated (PWM) circuit strat-
egy. The PWM voltage is applied to a comparator cir-
cuit which compares the PWM signal voltage to the
blower motor feedback voltage. The resulting output
drives the power module circuitry, which adjusts the
voltage output received from the blower motor relay
to change or maintain the desired blower speed. The
blower motor power module is diagnosed using a
DRBIIItscan tool. Refer to Body Diagnostic Proce-
dures.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
WARNING: THE HEAT SINK FOR THE BLOWER
MOTOR POWER MODULE MAY GET VERY HOT
DURING NORMAL OPERATION. IF THE BLOWER
MOTOR WAS TURNED ON PRIOR TO SERVICING
THE BLOWER MOTOR POWER MODULE, WAIT
FIVE MINUTES TO ALLOW THE HEAT SINK TO
COOL BEFORE PERFORMING DIAGNOSIS OR SER-
VICE. FAILURE TO TAKE THIS PRECAUTION CAN
RESULT IN PERSONAL INJURY.
24 - 30 CONTROLS - FRONTRS
MODE DOOR ACTUATOR (Continued)

(5) Install the rear evaporator line extension onto
the expansion valve (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - REAR/EVAPORA-
TOR - INSTALLATION - EVAPORATOR LINE
EXTENSION).
(6) Install the foam insulator wrap over the rear
expansion valve.
(7) Install the rear HVAC housing (Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
HVAC HOUSING - INSTALLATION).
(8) Run the HVAC Cooldown Test to verify proper
operation.
HEATER CORE
DESCRIPTION
The rear heater core is located near the front of
the rear HVAC housing, behind the right rear wheel
house. It is a heat exchanger made of rows of tubes
and fins. One end of the core is fitted with a molded
plastic tank that includes integral heater core inlet
and outlet nipples. The rear heater core can be ser-
viced without removing the rear HVAC housing from
the vehicle.
OPERATION
Engine coolant is circulated through underbody
heater hoses to the rear heater core at all times. As
the coolant flows through the rear heater core, heat
removed from the engine is transferred to the heater
core fins and tubes. Air directed through the heater
core picks up the heat from the heater core fins. The
rear blend door allows control of the rear heater out-
put air temperature by controlling how much of the
air flowing through the rear HVAC housing is
directed through the heater core.
The rear heater core cannot be repaired and, if
faulty or damaged, it must be replaced.
STANDARD PROCEDURE
REAR HEATER CORE FILLING
In its final installed position, the rear heater core
is positioned higher than the radiator fill cap. There-
fore, when the cooling system is drained and refilled,
gravity will not refill the heater core with coolant to
the proper level. This may result in two problems:1.
Insufficient coolant level in the engine cooling sys-
tem, which may result in engine overheating.2.Air
entrapped within the rear heater core, which may
result in insufficient rear heater performance. There
are two methods that may be employed to prevent
these problems:1.Pre-filling of the rear heater core.
2.Thermal cycling of the engine cooling system. Fol-lowing are descriptions of both prevention methods,
as well as a method to verify rear heater perfor-
mance.
WARNING: REFER TO THE APPLICABLE WARN-
INGS AND CAUTIONS FOR THIS SYSTEM BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING
FRONT - WARNING - HEATER PLUMBING).
PRE-FILLING
If the rear heater core or the rear HVAC housing
have been removed from the vehicle for service, the
rear heater core may be pre-filled with the proper
engine coolant mixture prior to reconnecting the
heater hoses to the heater core hose fittings.
(1) The heater core should be installed in the rear
HVAC housing, and the rear HVAC housing should
be installed in the vehicle.
(2) Take the proper precautions to protect the car-
peting below the rear heater core from spilled engine
coolant and have absorbent toweling readily avail-
able to mop up any spills.
(3) Insert the small end of an appropriate funnel
into the upper hose fitting of the heater core (Fig. 4).
(4) Carefully pour the proper pre-mixed engine
coolant solution into the rear heater core through a
funnel until coolant begins to appear at the lower
hose fitting of the heater core.
(5) Use absorbent toweling to clean up any engine
coolant spills from the preceding operation.
(6) Reconnect the heater hoses to the rear heater
core (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING - REAR/HEATER HOSE - INSTAL-
LATION).
Fig. 4 Pre-Filling Heater Core - Typical
1 - REAR HEATER CORE
24 - 102 PLUMBING - REARRS
A/C EXPANSION VALVE (Continued)

CABLE END CLEANING ANDLUBRICATION - STANDARD
PROCEDURE ......................... 5-65
CABLE RESISTANCE, SPECIFICATIONS - SPARK PLUG ......................... 8I-2
CABLES - ADJUSTMENT, PARKING BRAKE .............................. 5-65
CABLES - DESCRIPTION, BATTERY .......8F-16
CABLES - OPERATION, BATTERY ........8F-17
CABLES, DIAGNOSIS AND TESTING - BATTERY ........................... 8F-17
CALIBRATION, STANDARD PROCEDURE - A/C-HEATER CONTROL ................24-19
CALIBRATION, STANDARD PROCEDURE - COMPASS ........................... 8M-4
CALIPER - CLEANING ..............5-25,5-29
CALIPER - INSPECTION ............5-25,5-29
CALIPER - INSTALLATION, REAR DISC BRAKE .............................. 5-30
CALIPER - REMOVAL, REAR DISC BRAKE .............................. 5-28
CALIPER ADAPTER - INSTALLATION, FRONT DISC BRAKE ................... 5-31
CALIPER ADAPTER - REMOVAL, FRONT DISC BRAKE ......................... 5-31
CALIPER (CONTINENTAL TEVES BRAKES) - INSTALLATION, FRONT
DISC BRAKE ......................... 5-27
CALIPER (CONTINENTAL TEVES BRAKES) - REMOVAL, FRONT DISC
BRAKE .............................. 5-24
CALIPER GUIDE PIN BUSHINGS (CONTINENTAL TEVES BRAKES) -
ASSEMBLY ............................ 5-25
CALIPER GUIDE PIN BUSHINGS (CONTINENTAL TEVES BRAKES) -
DISASSEMBLY ........................ 5-24
CALIPER GUIDE PINS (TRW BRAKES) - INSTALLATION, DISC BRAKE ............5-32
CALIPER GUIDE PINS (TRW BRAKES) - REMOVAL, DISC BRAKE ................5-31
CALIPER PISTON AND SEAL - ASSEMBLY ...................... 5-26,5-30
CALIPER PISTON AND SEAL - DISASSEMBLY .................... 5-24,5-28
CALIPER (TRW BRAKES) - INSTALLATION, FRONT DISC BRAKE ......5-27
CALIPER (TRW BRAKES) - REMOVAL, FRONT DISC BRAKE ................... 5-24
CAMSHAFT & BEARINGS (IN BLOCK) - DESCRIPTION ....................... 9-118
CAMSHAFT & BEARINGS (IN BLOCK) - INSPECTION ........................ 9-118
CAMSHAFT & BEARINGS (IN BLOCK) - INSTALLATION ....................... 9-118
CAMSHAFT & BEARINGS (IN BLOCK) - OPERATION ......................... 9-118
CAMSHAFT & BEARINGS (IN BLOCK) - REMOVAL .......................... 9-118
CAMSHAFT END PLAY - STANDARD PROCEDURE, MEASURING ..............9-29
CAMSHAFT OIL SEAL(S) - INSTALLATION . . 9-29
CAMSHAFT OIL SEAL(S) - REMOVAL ......9-28
CAMSHAFT POSITION SENSOR - DESCRIPTION ......................... 8I-4
CAMSHAFT POSITION SENSOR - OPERATION .......................... 8I-4
CAMSHAFT SPROCKET - INSTALLATION, TIMING CHAIN ....................... 9-160
CAMSHAFT SPROCKET - REMOVAL, TIMING CHAIN ....................... 9-159
CAMSHAFT SPROCKETS - INSTALLATION . . 9-67
CAMSHAFT SPROCKETS - REMOVAL ......9-66
CAMSHAFT(S) - CLEANING ..............9-30
CAMSHAFT(S) - DESCRIPTION ...........9-29
CAMSHAFT(S) - INSPECTION ............9-30
CAMSHAFT(S) - INSTALLATION ..........9-31
CAMSHAFT(S) - OPERATION .............9-29
CAMSHAFT(S) - REMOVAL ..............9-30
CANISTER - DESCRIPTION, VAPOR ......25-19
CANISTER - INSTALLATION, REAR EVAP . . 25-21
CANISTER - OPERATION, VAPOR ........25-19
CANISTER - REMOVAL, REAR EVAP ......25-20
CAP - DESCRIPTION, FUEL FILLER .......25-13
CAP - DESCRIPTION, RADIATOR PRESSURE .......................... 7-27
CAP - INSTALLATION, INSTRUMENT PANEL RIGHT END ................... 23-72CAP - OPERATION, FUEL FILLER
........25-13
CAP - OPERATION, RADIATOR PRESSURE .......................... 7-27
CAP - REMOVAL, INSTRUMENT PANEL RIGHT END ......................... 23-72
CAP TESTING - DIAGNOSIS AND TESTING, COOLING SYSTEM
PRESSURE .......................... 7-28
CAP TO FILLER NECK SEAL - DIAGNOSIS AND TESTING, RADIATOR .....7-28
CAPACITIES - SPECIFICATIONS, FLUID ......0-6
CARE, CLEANING - WHEEL AND WHEEL TRIM .............................. 22-19
CARGO - INSTALLATION, AWD, HEAVY DUTY ............................... 2-36
CARGO - INSTALLATION, SPRING ........2-40
CARGO - REMOVAL, AWD, HEAVY DUTY . . . 2-36
CARGO - REMOVAL, SPRING ............2-40
CARPET INSERT - FOLD-IN-FLOOR - INSTALLATION, SECOND ROW FLOOR
TUB ............................... 23-98
CARPET INSERT - FOLD-IN-FLOOR - REMOVAL, SECOND ROW FLOOR TUB ....23-98
CARPET TRIM RING AND COVER - FOLD-IN-FLOOR - INSTALLATION ........23-84
CARPET TRIM RING AND COVER - FOLD-IN-FLOOR - REMOVAL ............23-84
CARPETS - FOLD-IN-FLOOR - INSTALLATION ....................... 23-83
CARPETS - FOLD-IN-FLOOR - REMOVAL . . 23-82
CARPETS AND FLOOR MATS - INSTALLATION ....................... 23-81
CARPETS AND FLOOR MATS - REMOVAL . 23-81
CARPETS INSERT - FOLD-IN-FLOOR - INSTALLATION, REAR FLOOR TUB .......23-96
CARPETS INSERT - FOLD-IN-FLOOR - REMOVAL, REAR FLOOR TUB ...........23-95
CARRIER ASSEMBLY - DESCRIPTION, BALANCE SHAFTS ..................... 9-71
CARRIER ASSEMBLY - INSTALLATION, BALANCE SHAFTS ..................... 9-73
CARRIER ASSEMBLY - OPERATION, BALANCE SHAFTS ..................... 9-71
CARRIER ASSEMBLY - REMOVAL, BALANCE SHAFTS ..................... 9-71
CATALYTIC CONVERTER - DESCRIPTION . . . 11-4
CATALYTIC CONVERTER - INSPECTION ....11-6
CATALYTIC CONVERTER - INSTALLATION . . . 11-6
CATALYTIC CONVERTER - OPERATION .....11-4
CATALYTIC CONVERTER - REMOVAL ......11-5
CAUTION, A/C SYSTEM ................24-66
CAUTION, DESCRIPTION .................5-4
CAUTION, DESCRIPTION ...............19-37
CAUTION, OPERATION .................5-90
CAUTION, SENSOR - TPM ..............22-11
CAUTIONS, WARNING - WARNINGS . 19-10,19-26
CD CHANGER - DESCRIPTION ..........8A-11
CD CHANGER - INSTALLATION ..........8A-11
CD CHANGER - OPERATION ............8A-11
CD CHANGER - REMOVAL .............8A-11
CENTER - DESCRIPTION, ELECTRONIC VEHICLE INFO ....................... 8M-7
CENTER - INSTALLATION, MESSAGE ......8M-1
CENTER - OPERATION, ELECTRONIC VEHICLE INFO ....................... 8M-7
CENTER - REMOVAL, MESSAGE .........8M-1
CENTER BEZEL - INSTALLATION, INSTRUMENT PANEL .................. 23-72
CENTER BEZEL - REMOVAL, INSTRUMENT PANEL .................. 23-71
CENTER BEZEL OUTLETS, INSTALLATION - FRONT ............................ 24-45
CENTER BEZEL OUTLETS, REMOVAL - FRONT ............................. 24-44
CENTER CONSOLE LAMP - INSTALLATION ....................... 8L-21
CENTER CONSOLE LAMP - REMOVAL ....8L-21
CENTER CONSOLE LAMP SWITCH - INSTALLATION ....................... 8L-21
CENTER CONSOLE LAMP SWITCH - REMOVAL .......................... 8L-21
CENTER, DIAGNOSIS AND TESTING - ELECTRONIC VEHICLE INFORMATION .....8M-8
CENTER HIGH MOUNTED STOP LAMP - INSTALLATION ........................ 8L-6
CENTER HIGH MOUNTED STOP LAMP - REMOVAL ........................... 8L-6CENTER HIGH MOUNTED STOP LAMP
UNIT - INSTALLATION .................. 8L-6
CENTER HIGH MOUNTED STOP LAMP UNIT - REMOVAL ..................... 8L-6
CENTER HINGE - INSTALLATION .........23-24
CENTER HINGE - REMOVAL ............23-24
CENTER LAP BELT - FOLD-IN-FLOOR - INSTALLATION, SEAT BELT ............23-157
CENTER LAP BELT - FOLD-IN-FLOOR - REMOVAL, SEAT BELT ................23-157
CENTER PROGRAMMING, STANDARD PROCEDURE - ELECTRONIC VEHICLE
INFORMATION ....................... 8M-8
CENTER STRIKER - INSTALLATION .......23-28
CENTER STRIKER - REMOVAL ..........23-28
CENTERING - STANDARD PROCEDURE, CLOCKSPRING ...................... 8O-11
CHAIN AND CAMSHAFT SPROCKET - INSTALLATION, TIMING ................9-160
CHAIN AND CAMSHAFT SPROCKET - REMOVAL, TIMING ................... 9-159
CHAIN COVER - INSTALLATION, TIMING . . 9-157
CHAIN COVER - REMOVAL, TIMING ......9-156
CHAIN WEAR - STANDARD PROCEDURE, MEASURING TIMING .................. 9-155
CHANGE - STANDARD PROCEDURE, ENGINE OIL AND FILTER ...........9-139,9-54
CHANGER - DESCRIPTION, CD ..........8A-11
CHANGER - INSTALLATION, CD .........8A-11
CHANGER - OPERATION, CD ............8A-11
CHANGER - REMOVAL, CD ..............8A-11
CHANNEL - INSTALLATION, WATER .....23-174
CHANNEL - REMOVAL, WATER .........23-174
CHARGE LEVEL TEST, DIAGNOSIS AND TESTING - SYSTEM ................... 24-67
CHARGE, STANDARD PROCEDURE - REFRIGERANT SYSTEM ...............24-71
CHARGING, STANDARD PROCEDURE - CONVENTIONAL BATTERY ..............8F-11
CHARGING, STANDARD PROCEDURE - SPIRAL PLATE BATTERY ...............8F-10
CHARGING SYSTEM - DESCRIPTION .....8F-21
CHARGING SYSTEM - OPERATION .......8F-21
CHARTS - DIAGNOSIS AND TESTING, STEERING SYSTEM DIAGNOSIS ..........19-3
CHARTS - SPECIFICATIONS, COLOR CODE ............................. 23-100
CHECK - DIAGNOSIS AND TESTING, COOLING SYSTEM FLOW ................7-3
CHECK - DIAGNOSIS AND TESTING, EXHAUST SYSTEM RESTRICTION .........11-2
CHECK - STANDARD PROCEDURE, COOLANT LEVEL .......................7-4
CHECK - STANDARD PROCEDURE, ENGINE OIL LEVEL ................... 9-140
CHECK, STANDARD PROCEDURE - ENGINE OIL LEVEL .................... 9-54
CHECK, STANDARD PROCEDURE - FLUID LEVEL AND CONDITION .........21-230,21-82
CHECK STRAP - INSTALLATION .........23-15
CHECK STRAP - REMOVAL .............23-15
CHECKING - STANDARD PROCEDURE, BRAKE FLUID LEVEL ................... 5-33
CHECKING - STANDARD PROCEDURE, POWER STEERING FLUID LEVEL ........19-44
CHECKING BATTERY ELECTROLYTE LEVEL, STANDARD PROCEDURE .........8F-14
CHECKING ENGINE OIL PRESSURE - DIAGNOSIS AND TESTING ..............9-53
CHECKING POWER STEERING BELT TENSION - STANDARD PROCEDURE .......7-8
CHILD RESTRAINT ANCHOR - DESCRIPTION ........................ 8O-9
CHILD RESTRAINT ANCHOR - OPERATION ......................... 8O-10
CHILD SEAT - INSTALLATION, QUAD ....23-106
CHILD SEAT - REMOVAL, QUAD ........23-106
CHILD SEAT MODULE, BENCH SEAT - REMOVAL ......................... 23-104
CHIME SYSTEM - DIAGNOSIS AND TESTING ............................ 8B-2
CHIME/BUZZER - DESCRIPTION ..........8B-1
CHIME/BUZZER - OPERATION ............8B-1
CHIME/BUZZER - WARNING .............8B-2
CHIME/THERMISTOR - DESCRIPTION .....8N-8
CHIME/THERMISTOR - INSTALLATION .....8N-9
CHIME/THERMISTOR - OPERATION .......8N-8
CHIME/THERMISTOR - REMOVAL ........8N-8
6 INDEXRS
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