1998 DODGE RAM 1500 ECO mode

INSTALLATION
(1) Install the floor distribution duct onto the bot-
tom of the HVAC housing.
(2) Install the five screws that secure the floor dis-
tribution duct to the HVAC housing. Tighten the
screws to 2.2 N´m (20 in. lbs.).
(3) Install the HVAC housing (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - INSTALLATION).
HVAC HOUSING
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 AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
NOTE: The HVAC housing must be removed from
the vehicle and the two halves of the housing sep-
arated for service access of the heater core, evap-
orator coil, defrost door, blend door(s) and the
recirculation door.
(1) Disconnect and isolate the battery negative
cable.
(2) Drain the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE).
(3) Recover the refrigerant from the refrigerant
system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING - STANDARD PROCEDURE -
REFRIGERANT RECOVERY).
(4) Disconnect the liquid refrigerant line fitting
from the evaporator inlet tube (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING/REFRIG-
ERANT LINE COUPLER - REMOVAL). Discard the
O-ring seal and install plugs in, or tape over the
opened liquid refrigerant line fitting and evaporator
inlet tube.
(5) Remove the accumulator (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING/ACCU-
MULATOR - REMOVAL). Discard the O-ring seals
and install plugs in, or tape over the opened refrig-
erant line fittings and evaporator outlet tube.(6) Disconnect the heater hoses from the heater
core tubes. Install plugs in, or tape over the opened
heater core tubes.
(7) Remove the powertrain control module (PCM)
from the engine compartment to gain access to the
HVAC housing retaining nuts (Refer to 8 - ELECTRI-
CAL/ELECTRONIC CONTROL MODULES/POWER-
TRAIN CONTROL MODULE - REMOVAL).
(8) Remove the two nuts from the HVAC housing
mounting studs in the engine compartment.
(9) Remove the instrument panel from the vehicle
(Refer to 23 - BODY/INSTRUMENT PANEL -
REMOVAL).
(10) Remove the bolt that secures the HVAC hous-
ing to the floor bracket located in the center of the
vehicle (Fig. 9).
(11) Remove the two nuts from the HVAC housing
mounting studs in the passenger compartment.
(12) Remove the HVAC housing from inside the
vehicle. Take care not to allow any remaining coolant
to drain onto the vehicles interior.
Fig. 9 HVAC Housing - Dual Zone Shown, Single
Zone Typical
1 - NUT
2 - PASSENGER BLEND DOOR ACTUATOR
3 - NUT
4 - INLET BAFFLE
5 - RECIRCULATION DOOR ACTUATOR
6 - RECIRCULATION DOOR
7 - DRIVER SIDE BLEND DOOR ACTUATOR
8 - HVAC HOUSING
9 - BOLT
10 - DEFROSTER DOOR ACTUATOR
11 - MODE DOOR ACTUATOR
24 - 34 DISTRIBUTIONDR
FLOOR DISTRIBUTION DUCT (Continued)

STANDARD PROCEDURE - REFRIGERANT
SYSTEM SERVICE EQUIPMENT
WARNING: EYE PROTECTION MUST BE WORN
WHEN SERVICING AN AIR CONDITIONING REFRIG-
ERANT SYSTEM. TURN OFF (ROTATE CLOCKWISE)
ALL VALVES ON THE EQUIPMENT BEING USED
BEFORE CONNECTING TO, OR DISCONNECTING
FROM THE REFRIGERANT SYSTEM. FAILURE TO
OBSERVE THESE WARNINGS MAY RESULT IN PER-
SONAL INJURY.
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS SECTION BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
WARNING) and (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING - CAUTION).
When servicing the air conditioning system, a
R-134a refrigerant recovery/recycling/charging sta-
tion that meets SAE Standard J2210 must be used
(Fig. 2). Contact an automotive service equipment
supplier for refrigerant recovery/recycling/charging
equipment. Refer to the operating instructions sup-
plied by the equipment manufacturer for proper care
and use of this equipment.
A manifold gauge set may be needed with some
recovery/recycling/charging equipment (Fig. 3). The
service hoses on the gauge set being used should
have manual (turn wheel), or automatic back-flow
valves at the service port connector ends. This will
prevent refrigerant from being released into the
atmosphere.
MANIFOLD GAUGE SET CONNECTIONS
CAUTION: Do not use an R-12 manifold gauge set
on an R-134a system. The refrigerants are not com-
patible and system damage will result.
LOW PRESSURE GAUGE HOSE The low pressure
hose (Blue with Black stripe) attaches to the low side
service port. This service port is located on the suc-
tion line between the accumulator outlet port and the
A/C compressor.
HIGH PRESSURE GAUGE HOSE The high pres-
sure hose (Red with Black stripe) attaches to the
high side service port. This service port is located on
the discharge line near the A/C compressor. On this
model, an A/C pressure transducer is installed onto
the high pressure service port. A/C high side pres-
sures can be read using a DRBIIItscan tool. Refer to
Body Diagnostic Procedures.
RECOVERY/RECYCLING/EVACUATION/CHARG-
ING HOSE The center manifold hose (Yellow, or
White, with Black stripe) is used to recover, evacu-
ate, and charge the refrigerant system. When the low
or high pressure valves on the manifold gauge set
are opened, the refrigerant in the system will escape
through this hose.
Fig. 2 Refrigerant Recovery/Recycling Station -
Typical
1 - R-134a REFRIGERANT STATION
Fig. 3 MANIFOLD GAUGE SET - TYPICAL
1 - HIGH PRESSURE GAUGE
2 - VALVE
3 - VACUUM/REFRIGERANT HOSE (YELLOW W/ BLACK STRIPE)
4 - HIGH PRESSURE HOSE (RED W/ BLACK STRIPE)
5 - LOW PRESSURE HOSE (BLUE W/ BLACK STRIPE)
6 - VALVE
7 - LOW PRESSURE GAUGE
24 - 46 PLUMBINGDR
PLUMBING (Continued)

(1) Drain the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOLING
SYSTEM DRAIN).
(2) Remove the heater hose retaining brackets as
required (depending on engine application).
(3) Using spring tension clamp pliers, compress
and slide the clamps off of each end of the hose being
removed (Fig. 25).
CAUTION: DO NOT apply excessive pressure on
heater tubes or connections when removing heater
hoses. Excessive pressure may damage or deform
the tubes/heater core, causing an engine coolant
leak.
(4) Disconnect each hose end by carefully twisting
the hose back and forth on the tube, while gently
pulling it away from the end of the tube.
(5) If necessary, carefully cut the hose end and
peel the hose off of the tube.
NOTE: Replacement of the heater return hose will
be required if the hose ends are cut for removal.
(6) Remove the heater return hose from the engine
compartment.
(7) Separate the heater hoses from each other as
required (depending on engine application).INSTALLATION
(1) If separated, reconnect the heater hoses to each
other as required (depending on engine application).
(2) Position the heater return hose into the engine
compartment.
(3) Using spring tension clamp pliers, compress
and slide each clamp away from the end of the hose
being installed.
(4) Install each hose by carefully twisting the hose
back and forth while gently pushing it onto the tube
end.
(5) Using spring tension clamp pliers, compress
and slide the clamps onto each end of the hose being
installed.
(6) Install the heater hose retaining brackets as
required (depending on engine application).
(7) Refill the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE).
LIQUID LINE
DESCRIPTION
The liquid line is the refrigerant line that carries
refrigerant from the A/C condenser to the evaporator.
The liquid line for this model consist of two separate
lines that connect to each other. The liquid lines are
made from light-weight aluminum or steel, and use
braze-less fittings.
The front half of the liquid line contains the fixed
orifice tube. The liquid lines are only serviced as an
assembly, except for the rubber O-ring seals used on
the end fittings. The liquid lines cannot be adjusted
or repaired and, if found to be leaking or damaged,
they must be replaced.
REMOVAL
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS SECTION BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
WARNING) and (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING - CAUTION).
(1) Disconnect and isolate the battery negative
cable.
(2) If equipped with the diesel engine, remove the
passenger side battery (Refer to 8 - ELECTRICAL/
BATTERY SYSTEM/BATTERY - REMOVAL).
(3) If equipped with the diesel engine, remove the
passenger side battery tray (Refer to 8 - ELECTRI-
CAL/BATTERY SYSTEM/TRAY - REMOVAL).
(4) Recover the refrigerant from the refrigerant
system (Refer to 24 - HEATING & AIR CONDITION-
Fig. 25 Heater Hoses - Typical
1 - HEATER CORE TUBES
2 - HEATER INLET HOSE
3 - RETAINING BRACKET
4 - HOSE CONNECTOR
5 - SPRING CLAMP
6 - HEATER RETURN HOSE
DRPLUMBING 24 - 65
HEATER RETURN HOSE (Continued)

cial material for the R-134a system. Use only refrig-
erant oil of the type recommended for the A/C
compressor in the vehicle.
(13) Connect the liquid line to the condenser outlet
port.
(14) Install and tighten the nut that secures the
liquid line fitting to the condenser. Tighten the nut to
20 N´m (180 in. lbs.).
(15) Install the plastic cover onto the condenser
outlet stud.
(16) If equipped with the diesel engine, install the
passenger side battery tray (Refer to 8 - ELECTRI-
CAL/BATTERY SYSTEM/TRAY - INSTALLATION).
(17) If equipped with the diesel engine, install the
passenger side battery (Refer to 8 - ELECTRICAL/
BATTERY SYSTEM/BATTERY - INSTALLATION).
(18) Reconnect the battery negative cables.
(19) Evacuate the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).
(20) Charge the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE).
REFRIGERANT
DESCRIPTION
The refrigerant used in this air conditioning sys-
tem is a HydroFluoroCarbon (HFC), type R-134a.
Unlike R-12, which is a ChloroFluoroCarbon (CFC),
R-134a refrigerant does not contain ozone-depleting
chlorine. R-134a refrigerant is a non-toxic, non-flam-
mable, clear, and colorless liquefied gas.
Even though R-134a does not contain chlorine, it
must be reclaimed and recycled just like CFC-type
refrigerants. This is because R-134a is a greenhouse
gas and can contribute to global warming.
OPERATION
R-134a refrigerant is not compatible with R-12
refrigerant in an air conditioning system. Even a
small amount of R-12 added to an R-134a refrigerant
system will cause compressor failure, refrigerant oil
sludge or poor air conditioning system performance.
In addition, the PolyAlkylene Glycol (PAG) synthetic
refrigerant oils used in an R-134a refrigerant system
are not compatible with the mineral-based refriger-
ant oils used in an R-12 refrigerant system.
R-134a refrigerant system service ports, service
tool couplers and refrigerant dispensing bottles have
all been designed with unique fittings to ensure that
an R-134a system is not accidentally contaminated
with the wrong refrigerant (R-12). There are alsolabels posted in the engine compartment of the vehi-
cle and on the compressor identifying to service tech-
nicians that the air conditioning system is equipped
with R-134a.
REFRIGERANT LINE COUPLER
DESCRIPTION
Spring-lock type refrigerant line couplers are used
to connect some of the refrigerant lines and other
components to the refrigerant system. These couplers
require a special tool for disengaging the two coupler
halves.
OPERATION
The spring-lock coupler is held together by a garter
spring inside a circular cage on the male half of the
fitting (Fig. 27). When the two coupler halves are
connected, the flared end of the female fitting slips
behind the garter spring inside the cage on the male
fitting. The garter spring and cage prevent the flared
end of the female fitting from pulling out of the cage.
Two O-rings on the male half of the fitting are
used to seal the connection. These O-rings are com-
patible with R-134a refrigerant and must be replaced
with O-rings made of the same material.
Secondary clips are installed over the two con-
nected coupler halves at the factory for added protec-
tion. In addition, some models have a plastic ring
that is used at the factory as a visual indicator to
confirm that these couplers are connected. After the
Fig. 27 Spring-Lock Coupler - Typical
1 - MALE HALF SPRING-LOCK COUPLER
2 - FEMALE HALF SPRING-LOCK COUPLER
3 - SECONDARY CLIP
4 - CONNECTION INDICATOR RING
5 - COUPLER CAGE
6 - GARTER SPRING
7 - COUPLER CAGE
8 - O-RING SEALS
DRPLUMBING 24 - 67
LIQUID LINE (Continued)

EMISSIONS CONTROL
TABLE OF CONTENTS
page page
EMISSIONS CONTROL
DESCRIPTION
DESCRIPTION - STATE DISPLAY TEST
MODE...............................1
DESCRIPTION - CIRCUIT ACTUATION TEST
MODE...............................1
DESCRIPTION - DIAGNOSTIC TROUBLE
CODES..............................1
DESCRIPTION - TASK MANAGER..........1DESCRIPTION - MONITORED SYSTEMS....2
DESCRIPTION - TRIP DEFINITION.........4
DESCRIPTION - COMPONENT MONITORS . . 4
OPERATION
OPERATION..........................5
OPERATION - TASK MANAGER...........5
OPERATION - NON-MONITORED CIRCUITS . . 8
EVAPORATIVE EMISSIONS................10
EMISSIONS CONTROL
DESCRIPTION
DESCRIPTION - STATE DISPLAY TEST MODE
The switch inputs to the Powertrain Control Mod-
ule (PCM) have two recognized states; HIGH and
LOW. For this reason, the PCM cannot recognize the
difference between a selected switch position versus
an open circuit, a short circuit, or a defective switch.
If the State Display screen shows the change from
HIGH to LOW or LOW to HIGH, assume the entire
switch circuit to the PCM functions properly. Connect
the DRB scan tool to the data link connector and
access the state display screen. Then access either
State Display Inputs and Outputs or State Display
Sensors.
DESCRIPTION - CIRCUIT ACTUATION TEST
MODE
The Circuit Actuation Test Mode checks for proper
operation of output circuits or devices the Powertrain
Control Module (PCM) may not internally recognize.
The PCM attempts to activate these outputs and
allow an observer to verify proper operation. Most of
the tests provide an audible or visual indication of
device operation (click of relay contacts, fuel spray,
etc.). Except for intermittent conditions, if a device
functions properly during testing, assume the device,
its associated wiring, and driver circuit work cor-
rectly. Connect the DRB scan tool to the data link
connector and access the Actuators screen.
DESCRIPTION - DIAGNOSTIC TROUBLE CODES
A Diagnostic Trouble Code (DTC) indicates the
PCM has recognized an abnormal condition in the
system.Remember that DTC's are the results of a sys-
tem or circuit failure, but do not directly iden-
tify the failed component or components.
BULB CHECK
Each time the ignition key is turned to the ON
position, the malfunction indicator (check engine)
lamp on the instrument panel should illuminate for
approximately 2 seconds then go out. This is done for
a bulb check.
OBTAINING DTC'S USING DRB SCAN TOOL
(1) Obtain the applicable Powertrain Diagnostic
Manual.
(2) Obtain the DRB Scan Tool.
(3) Connect the DRB Scan Tool to the data link
(diagnostic) connector. This connector is located in
the passenger compartment; at the lower edge of
instrument panel; near the steering column.
(4) Turn the ignition switch on and access the
ªRead Faultº screen.
(5) Record all the DTC's and ªfreeze frameº infor-
mation shown on the DRB scan tool.
(6) To erase DTC's, use the ªErase Trouble Codeº
data screen on the DRB scan tool.Do not erase any
DTC's until problems have been investigated
and repairs have been performed.
DESCRIPTION - TASK MANAGER
The PCM is responsible for efficiently coordinating
the operation of all the emissions-related compo-
nents. The PCM is also responsible for determining if
the diagnostic systems are operating properly. The
software designed to carry out these responsibilities
is call the 'Task Manager'.
DREMISSIONS CONTROL 25 - 1

Immediately after a cold start, between predeter-
mined temperature thresholds limits, the three port
solenoid is briefly energized. This initializes the
pump by drawing air into the pump cavity and also
closes the vent seal. During non test conditions the
vent seal is held open by the pump diaphragm
assembly which pushes it open at the full travel posi-
tion. The vent seal will remain closed while the
pump is cycling due to the reed switch triggering of
the three port solenoid that prevents the diaphragm
assembly from reaching full travel. After the brief
initialization period, the solenoid is de-energized
allowing atmospheric pressure to enter the pump
cavity, thus permitting the spring to drive the dia-
phragm which forces air out of the pump cavity and
into the vent system. When the solenoid is energized
and de energized, the cycle is repeated creating flow
in typical diaphragm pump fashion. The pump is con-
trolled in 2 modes:
Pump Mode: The pump is cycled at a fixed rate to
achieve a rapid pressure build in order to shorten the
overall test length.
Test Mode: The solenoid is energized with a fixed
duration pulse. Subsequent fixed pulses occur when
the diaphragm reaches the Switch closure point.
The spring in the pump is set so that the system
will achieve an equalized pressure of about 7.5º H20.
The cycle rate of pump strokes is quite rapid as the
system begins to pump up to this pressure. As the
pressure increases, the cycle rate starts to drop off. If
there is no leak in the system, the pump would even-
tually stop pumping at the equalized pressure. If
there is a leak, it will continue to pump at a rate rep-
resentative of the flow characteristic of the size of the
leak. From this information we can determine if the
leak is larger than the required detection limit (cur-
rently set at .040º orifice by CARB). If a leak is
revealed during the leak test portion of the test, the
test is terminated at the end of the test mode and no
further system checks will be performed.
After passing the leak detection phase of the test,
system pressure is maintained by turning on the
LDP's solenoid until the purge system is activated.
Purge activation in effect creates a leak. The cycle
rate is again interrogated and when it increases due
to the flow through the purge system, the leak check
portion of the diagnostic is complete.
The canister vent valve will unseal the system
after completion of the test sequence as the pump
diaphragm assembly moves to the full travel position.
Evaporative system functionality will be verified by
using the stricter evap purge flow monitor. At an
appropriate warm idle the LDP will be energized to
seal the canister vent. The purge flow will be clocked
up from some small value in an attempt to see a
shift in the 02 control system. If fuel vapor, indicatedby a shift in the 02 control, is present the test is
passed. If not, it is assumed that the purge system is
not functioning in some respect. The LDP is again
turned off and the test is ended.
MISFIRE MONITOR
Excessive engine misfire results in increased cata-
lyst temperature and causes an increase in HC emis-
sions. Severe misfires could cause catalyst damage.
To prevent catalytic convertor damage, the PCM
monitors engine misfire.
The Powertrain Control Module (PCM) monitors
for misfire during most engine operating conditions
(positive torque) by looking at changes in the crank-
shaft speed. If a misfire occurs the speed of the
crankshaft will vary more than normal.
FUEL SYSTEM MONITOR
To comply with clean air regulations, vehicles are
equipped with catalytic converters. These converters
reduce the emission of hydrocarbons, oxides of nitro-
gen and carbon monoxide. The catalyst works best
when the Air Fuel (A/F) ratio is at or near the opti-
mum of 14.7 to 1.
The PCM is programmed to maintain the optimum
air/fuel ratio of 14.7 to 1. This is done by making
short term corrections in the fuel injector pulse width
based on the O2S sensor output. The programmed
memory acts as a self calibration tool that the engine
controller uses to compensate for variations in engine
specifications, sensor tolerances and engine fatigue
over the life span of the engine. By monitoring the
actual fuel-air ratio with the O2S sensor (short term)
and multiplying that with the program long-term
(adaptive) memory and comparing that to the limit,
it can be determined whether it will pass an emis-
sions test. If a malfunction occurs such that the PCM
cannot maintain the optimum A/F ratio, then the
MIL will be illuminated.
CATALYST MONITOR
To comply with clean air regulations, vehicles are
equipped with catalytic converters. These converters
reduce the emission of hydrocarbons, oxides of nitro-
gen and carbon monoxide.
Normal vehicle miles or engine misfire can cause a
catalyst to decay. This can increase vehicle emissions
and deteriorate engine performance, driveability and
fuel economy.
The catalyst monitor uses dual oxygen sensors
(O2S's) to monitor the efficiency of the converter. The
dual O2S's sensor strategy is based on the fact that
as a catalyst deteriorates, its oxygen storage capacity
and its efficiency are both reduced. By monitoring
the oxygen storage capacity of a catalyst, its effi-
ciency can be indirectly calculated. The upstream
DREMISSIONS CONTROL 25 - 3
EMISSIONS CONTROL (Continued)

CASE - NV271 - DESCRIPTION,
TRANSFER.........................21-447
CASE - NV271 - DIAGNOSIS AND
TESTING, TRANSFER.................21-448
CASE - NV271 - DISASSEMBLY,
TRANSFER.........................21-450
CASE - NV271 - INSPECTION, TRANSFER . 21-459
CASE - NV271 - INSTALLATION,
TRANSFER.........................21-473
CASE - NV271 - OPERATION, TRANSFER . 21-448
CASE - NV271 - REMOVAL, TRANSFER . . 21-450
CASE - NV273 - ASSEMBLY, TRANSFER . . 21-556
CASE - NV273 - CLEANING, TRANSFER . . 21-554
CASE - NV273 - DESCRIPTION,
TRANSFER.........................21-542
CASE - NV273 - DIAGNOSIS AND
TESTING, TRANSFER.................21-543
CASE - NV273 - DISASSEMBLY,
TRANSFER.........................21-544
CASE - NV273 - INSPECTION, TRANSFER . 21-554
CASE - NV273 - INSTALLATION,
TRANSFER.........................21-568
CASE - NV273 - OPERATION, TRANSFER . 21-543
CASE - NV273 - REMOVAL, TRANSFER . . 21-544
CASE BEARINGS - INSTALLATION,
DIFFERENTIAL.....3-106,3-134,3-161,3-48,3-75
CASE BEARINGS - REMOVAL,
DIFFERENTIAL.....3-105,3-134,3-161,3-48,3-75
CASE CONTROL MODULE -
DESCRIPTION, TRANSFER.............8E-16
CASE CONTROL MODULE - OPERATION,
TRANSFER..........................8E-16
CASE, NV241 GENII - TRANSFER.......21-438
CASE, NV241/NV243 - TRANSFER......21-439
CASE, NV243 - TRANSFER......21-505,21-506
CASE, NV244 GENII - TRANSFER.......21-535
CASE, NV271 - TRANSFER............21-473
CASE NV271/NV273, SPECIAL TOOLS -
TRANSFER...................21-474,21-569
CASE, NV273 - TRANSFER............21-568
CASE SKID PLATE - INSTALLATION,
TRANSFER..........................13-26
CASE SKID PLATE - REMOVAL,
TRANSFER..........................13-26
CASTER ADJUSTMENT - STANDARD
PROCEDURE, CAMBER..................2-4
CASTER AND TOE ADJUSTMENT -
STANDARD PROCEDURE, CAMBER........2-4
CATALYTIC CONVERTER - DESCRIPTION . . . 11-6
CATALYTIC CONVERTER - OPERATION.....11-6
CATCH - INSTALLATION, LATCH STRIKER
/ SECONDARY.......................23-48
CATCH - REMOVAL, LATCH STRIKER /
SECONDARY........................23-47
CAUTION - A/C SYSTEM...............24-43
CAUTION, HALF SHAFT.................3-20
CAUTION, INTERIOR..................23-62
CENTER - DESCRIPTION, ELECTRONIC
VEHICLE INFO.......................8M-7
CENTER - DIAGNOSIS AND TESTING,
ELECTRONIC VEHICLE INFORMATION.....8M-8
CENTER - INSTALLATION, ELECTRONIC
VEHICLE INFO.......................8M-9
CENTER & LEFT OUTBOARD -
INSTALLATION......................8O-50
CENTER & LEFT OUTBOARD - REMOVAL
. . 8O-48
CENTER - OPERATION, ELECTRONIC
VEHICLE INFO
.......................8M-7
CENTER - REMOVAL, ELECTRONIC
VEHICLE INFO
.......................8M-9
CENTER ANCHOR & RIGHT OUTBOARD -
INSTALLATION
......................8O-50
CENTER ANCHOR & RIGHT OUTBOARD -
REMOVAL
..........................8O-49
CENTER ARMREST / SEAT BACK -
INSTALLATION
.......................23-77
CENTER ARMREST / SEAT BACK -
REMOVAL
..........................23-76
CENTER BEARING - ADJUSTMENTS
........3-9
CENTER BEARING - INSTALLATION
........3-9
CENTER BEARING - REMOVAL
............3-9
CENTER BEZEL - INSTALLATION,
INSTRUMENT PANEL
..................23-57
CENTER BEZEL - REMOVAL,
INSTRUMENT PANEL
..................23-57
CENTER HIGH MOUNTED STOP LAMP -
INSTALLATION
.......................8L-11CENTER HIGH MOUNTED STOP LAMP -
REMOVAL..........................8L-11
CENTER HIGH MOUNTED STOP LAMP
UNIT - INSTALLATION.................8L-11
CENTER HIGH MOUNTED STOP LAMP
UNIT - REMOVAL....................8L-11
CENTER PROGRAMMING - STANDARD
PROCEDURE, ELECTRONIC VEHICLE
INFORMATION.......................8M-8
CENTER SEAT - INSTALLATION..........23-76
CENTER SEAT - REMOVAL.............23-75
CENTER SEAT BACK HINGE -
INSTALLATION.......................23-79
CENTER SEAT BACK HINGE - REMOVAL . . . 23-78
CENTER SEAT BACK INERTIA HINGE
COVER - INSTALLATION...............23-77
CENTER SEAT BACK INERTIA HINGE
COVER - REMOVAL...................23-77
CENTER SEAT BACK LID - INSTALLATION . 23-79
CENTER SEAT BACK LID - REMOVAL.....23-79
CENTER SEAT BELT - INSTALLATION,
FRONT.............................8O-31
CENTER SEAT BELT - REMOVAL, FRONT . . 8O-30
CENTER SEAT BELT & RETRACTOR -
INSTALLATION, FRONT................8O-29
CENTER SEAT BELT & RETRACTOR -
INSTALLATION, REAR.................8O-45
CENTER SEAT BELT & RETRACTOR -
REMOVAL, FRONT....................8O-29
CENTER SEAT BELT & RETRACTOR -
REMOVAL, REAR....................8O-44
CENTER SEAT CUSHION - INSTALLATION . . . 23-79
CENTER SEAT CUSHION - REMOVAL.....23-79
CENTER SEAT CUSHION COVER -
INSTALLATION.......................23-79
CENTER SEAT CUSHION COVER -
REMOVAL..........................23-79
CENTERING - STANDARD PROCEDURE,
CLOCKSPRING......................8O-19
CERTIFICATION LABEL - DESCRIPTION,
VEHICLE.........................Intro.-11
CHAIN COVER(S) - INSTALLATION,
TIMING BELT....................9-171,9-81
CHAIN COVER(S) - REMOVAL, TIMING
BELT ..........................9-170,9-81
CHAIN WEAR - STANDARD PROCEDURE,
MEASURING TIMING..................9-167
CHAIN WEAR, STANDARD PROCEDURE -
MEASURING TIMING...................9-77
CHAIN/TENSIONER - DESCRIPTION,
TIMING............................9-229
CHAIN/TENSIONER - OPERATION,
TIMING............................9-229
CHANNEL - INSTALLATION, GLASS RUN . . 23-22,
23-31
CHANNEL - REMOVAL, GLASS RUN . 23-21,23-30
CHARGE - STANDARD PROCEDURE,
REFRIGERANT SYSTEM...............24-47
CHARGE AIR COOLER AND PLUMBING -
CLEANING..........................11-17
CHARGE AIR COOLER AND PLUMBING -
DESCRIPTION.......................11-16
CHARGE AIR COOLER AND PLUMBING -
INSPECTION........................11-17
CHARGE AIR COOLER AND PLUMBING -
INSTALLATION.......................11-17
CHARGE AIR COOLER AND PLUMBING -
OPERATION
.........................11-16
CHARGE AIR COOLER AND PLUMBING -
REMOVAL
..........................11-17
CHARGE AIR COOLER SYSTEM - LEAKS
- DIAGNOSIS AND TESTING
............11-16
CHARGING - DESCRIPTION
.............8F-19
CHARGING - OPERATION
..............8F-19
CHARGING - STANDARD PROCEDURE,
BATTERY
............................8F-8
CHARGING SYSTEM - DIAGNOSIS AND
TESTING
...........................8F-19
CHARGING SYSTEM - SPECIFICATIONS,
TORQUE - GENERATOR
................8F-20
CHART - SPECIFICATIONS, TORQUE
........5-8
CHART, SPECIFICATIONS - TORQUE
.......5-46
CHART, SPECIFICATIONS - TORQUE
.....19-19,
19-23,19-35,19-42
CHART, SPECIFICATIONS - TORQUE
. . 2-10,2-29,
2-42
CHART, SPECIFICATIONS - TORQUE
......22-13CHARTS - DIAGNOSIS AND TESTING,
DIAGNOSIS........................21-145
CHARTS - DIAGNOSIS AND TESTING,
SMOKE DIAGNOSIS...................9-236
CHECK - STANDARD PROCEDURE,
COOLANT LEVEL......................7-17
CHECK - STANDARD PROCEDURE, FLUID
LEVEL......................21-202,21-366
CHECK - STANDARD PROCEDURE, OIL
PUMP VOLUME.....................21-387
CHECK CABLE - INSTALLATION.........23-15
CHECK CABLE - REMOVAL.............23-15
CHECK GAUGES INDICATOR -
DESCRIPTION.......................8J-21
CHECK GAUGES INDICATOR -
OPERATION.........................8J-21
CHECK VALVE - DESCRIPTION...........8R-7
CHECK VALVE - INSTALLATION..........8R-8
CHECK VALVE - OPERATION.............8R-8
CHECK VALVE - REMOVAL..............8R-8
CHILD RESTRAINT ANCHOR -
DESCRIPTION.......................8O-15
CHILD RESTRAINT ANCHOR -
INSTALLATION......................8O-18
CHILD RESTRAINT ANCHOR -
OPERATION.........................8O-17
CHILD RESTRAINT ANCHOR - REMOVAL . . 8O-17
CHIME WARNING SYSTEM -
DESCRIPTION........................8B-1
CHIME WARNING SYSTEM - DIAGNOSIS
AND TESTING........................8B-3
CHIME WARNING SYSTEM - OPERATION . . . 8B-1
CIGAR LIGHTER OUTLET -
DESCRIPTION.....................8W-97-2
CIGAR LIGHTER OUTLET - DIAGNOSIS
AND TESTING.....................8W-97-2
CIGAR LIGHTER OUTLET - OPERATION . 8W-97-2
CIRCUIT - DIAGNOSIS AND TESTING,
AMBIENT TEMPERATURE SENSOR......8M-10
CIRCUIT - OPERATION, FUEL DRAIN.....14-67
CIRCUIT ACTUATION TEST MODE -
DESCRIPTION........................25-1
CIRCUIT FUNCTIONS - DESCRIPTION . . 8W-01-6
CIRCUIT INFORMATION - DESCRIPTION . 8W-01-5
CIRCUIT SENSE - DESCRIPTION,
IGNITION...........................8E-10
CIRCUIT SENSE - OPERATION, IGNITION . . 8E-11
CIRCUITS - OPERATION, NON-
MONITORED.........................25-8
CLAMPS - DESCRIPTION, HOSE...........7-3
CLAMPS - OPERATION, HOSE.............7-5
CLEANING/REVERSE FLUSHING -
STANDARD PROCEDURE, COOLING
SYSTEM............................7-17
CLEARANCE - STANDARD PROCEDURE,
CONNECTING ROD BEARING AND
CRANKSHAFT JOURNAL...............9-272
CLEARANCE - STANDARD PROCEDURE,
MAIN BEARING......................9-274
CLEARANCE LAMP - INSTALLATION, CAB . 8L-12
CLEARANCE LAMP - REMOVAL, CAB.....8L-11
CLOCKSPRING - DESCRIPTION.........8O-18
CLOCKSPRING - INSTALLATION.........8O-21
CLOCKSPRING - OPERATION...........8O-19
CLOCKSPRING - REMOVAL............8O-20
CLOCKSPRING CENTERING - STANDARD
PROCEDURE........................8O-19
CLUSTER - ASSEMBLY, INSTRUMENT....8J-15
CLUSTER - DESCRIPTION, INSTRUMENT . . . 8J-2
CLUSTER - DIAGNOSIS AND TESTING,
INSTRUMENT........................8J-10
CLUSTER - DISASSEMBLY, INSTRUMENT . . 8J-14
CLUSTER - INSTALLATION, INSTRUMENT . 8J-16
CLUSTER - OPERATION, INSTRUMENT.....8J-6
CLUSTER - REMOVAL, INSTRUMENT.....8J-14
CLUSTER BEZEL - INSTALLATION........23-49
CLUSTER BEZEL - REMOVAL...........23-49
CLUTCH - 5.9L DIESEL - DESCRIPTION,
FAN DRIVE VISCOUS...................7-52
CLUTCH - 5.9L DIESEL - OPERATION,
FAN DRIVE VISCOUS...................7-52
CLUTCH - ASSEMBLY, FRONT..........21-207
CLUTCH - ASSEMBLY, LOW/REVERSE . . . 21-385
CLUTCH - ASSEMBLY, REAR
...........21-249
CLUTCH - CLEANING, LOW/REVERSE
....21-385
CLUTCH - CLEANING, REAR
...........21-248
CLUTCH - DESCRIPTION, FRONT
.......21-205
CLUTCH - DESCRIPTION, OVERDRIVE
. . . 21-217
6 INDEXDR
Description Group-Page Description Group-Page Description Group-Page

MODULE - INSTALLATION, FRONT
CONTROL........................8W-97-6
MODULE - INSTALLATION, FRONT
CONTROL...........................8E-5
MODULE - INSTALLATION, FUEL PUMP . . . 14-12
MODULE - INSTALLATION, FUEL TANK....14-64
MODULE - INSTALLATION, HANDS FREE . . . 8T-2
MODULE - INSTALLATION, HEATED SEAT . . . 8E-7
MODULE - INSTALLATION, HEATED SEAT . 8G-15
MODULE - INSTALLATION, INTEGRATED
POWER..........................8W-97-4
MODULE - INSTALLATION, REMOTE
KEYLESS ENTRY......................8N-8
MODULE - INSTALLATION, SENTRY KEY
IMMOBILIZER.......................8E-15
MODULE - INSTALLATION, WIPER.......8R-23
MODULE - OPERATION, AIRBAG
CONTROL..........................8O-11
MODULE - OPERATION, DRIVER DOOR....8N-5
MODULE - OPERATION, FRONT
CONTROL........................8W-97-5
MODULE - OPERATION, FRONT
CONTROL...........................8E-5
MODULE - OPERATION, FUEL PUMP.....14-11
MODULE - OPERATION, FUEL TANK......14-63
MODULE - OPERATION, HEATED SEAT.....8E-6
MODULE - OPERATION, HEATED SEAT....8G-14
MODULE - OPERATION, INTEGRATED
POWER..........................8W-97-3
MODULE - OPERATION, REMOTE
KEYLESS ENTRY......................8N-7
MODULE - OPERATION, SENTRY KEY
IMMOBILIZER.......................8E-13
MODULE - OPERATION, TRANSFER CASE
CONTROL..........................8E-16
MODULE - OPERATION, TRANSMISSION
CONTROL..........................8E-20
MODULE - OPERATION, WIPER.........8R-23
MODULE - REMOVAL, AIRBAG CONTROL . 8O-12
MODULE - REMOVAL, DRIVER DOOR.....8N-7
MODULE - REMOVAL, ENGINE CONTROL . . . 8E-4
MODULE - REMOVAL, FRONT CONTROL . 8W-97-6
MODULE - REMOVAL, FRONT CONTROL . . . 8E-5
MODULE - REMOVAL, FUEL PUMP.......14-12
MODULE - REMOVAL, FUEL TANK.......14-63
MODULE - REMOVAL, HANDS FREE.......8T-2
MODULE - REMOVAL, HEATED SEAT......8E-7
MODULE - REMOVAL, HEATED SEAT.....8G-15
MODULE - REMOVAL, INTEGRATED
POWER..........................8W-97-3
MODULE - REMOVAL, REMOTE KEYLESS
ENTRY..............................8N-7
MODULE - REMOVAL, SENTRY KEY
IMMOBILIZER.......................8E-15
MODULE - REMOVAL, WIPER...........8R-23
MODULE / SWITCH OPERATING MODES,
STANDARD PROCEDURE -
CONFIGURING A NEW.................8Q-3
MODULE LAMP REPLACEMENT -
STANDARD PROCEDURE...............8M-3
MODULE LENS REPLACEMENT -
STANDARD PROCEDURE...............8M-3
MODULE (SKIM) - DESCRIPTION,
SENTRY KEY IMMOBILIZER.............8Q-1
MODULE (SKIM) - OPERATION, SENTRY
KEY IMMOBILIZER
....................8Q-2
MOLDING - INSTALLATION, FRONT
DOOR INNER BELT
...................23-93
MOLDING - INSTALLATION, FRONT
DOOR OUTER BELT
...................23-93
MOLDING - INSTALLATION, REAR DOOR
INNER BELT
.........................23-94
MOLDING - INSTALLATION, REAR DOOR
OUTER BELT
........................23-94
MOLDING - REMOVAL, FRONT DOOR
INNER BELT
.........................23-93
MOLDING - REMOVAL, FRONT DOOR
OUTER BELT
........................23-92
MOLDING - REMOVAL, REAR DOOR
INNER BELT
.........................23-94
MOLDING - REMOVAL, REAR DOOR
OUTER BELT
........................23-93
MOLDINGS - INSTALLATION, BODY SIDE
. . 23-36
MOLDINGS - REMOVAL, BODY SIDE
.....23-36
MONITORED SYSTEMS - DESCRIPTION
....25-2
MONITORS - DESCRIPTION,
COMPONENT
.........................25-4MOTOR - DESCRIPTION, ADJUSTABLE
PEDAL...............................5-6
MOTOR - DESCRIPTION, BLOWER.......24-28
MOTOR - DESCRIPTION, DOOR LOCK.....8N-4
MOTOR - DESCRIPTION, IDLE AIR
CONTROL..........................14-28
MOTOR - DESCRIPTION, LUMBAR.......8N-18
MOTOR - DESCRIPTION, SHIFT . . 21-511,21-541,
21-575
MOTOR - DIAGNOSIS AND TESTING,
BLOWER...........................24-28
MOTOR - DIAGNOSIS AND TESTING,
DOOR LOCK.........................8N-4
MOTOR - DIAGNOSIS AND TESTING,
LUMBAR...........................8N-18
MOTOR - DIAGNOSIS AND TESTING,
STARTER ...........................8F-32
MOTOR - INSTALLATION, ADJUSTABLE
PEDAL...............................5-7
MOTOR - INSTALLATION, BLOWER......24-31
MOTOR - INSTALLATION, IDLE AIR
CONTROL..........................14-29
MOTOR - INSTALLATION, SHIFT . 21-511,21-541,
21-575
MOTOR - INSTALLATION, STARTER......8F-34
MOTOR - OPERATION, BLOWER.........24-28
MOTOR - OPERATION, DOOR LOCK.......8N-4
MOTOR - OPERATION, IDLE AIR
CONTROL..........................14-28
MOTOR - OPERATION, LUMBAR........8N-18
MOTOR - OPERATION, SHIFT.....21-511,21-541,
21-575
MOTOR - REMOVAL, ADJUSTABLE
PEDAL...............................5-7
MOTOR - REMOVAL, BLOWER..........24-31
MOTOR - REMOVAL, IDLE AIR CONTROL . . 14-29
MOTOR - REMOVAL, SHIFT.....21-511,21-541,
21-575
MOTOR - REMOVAL, STARTER..........8F-33
MOTOR - REMOVAL, WINDOW..........8N-20
MOTOR RELAY - DESCRIPTION,
STARTER ...........................8F-35
MOTOR RELAY - INSTALLATION,
STARTER ...........................8F-37
MOTOR RELAY - OPERATION, STARTER . . . 8F-36
MOTOR RELAY - REMOVAL, STARTER....8F-37
MOTOR RESISTOR BLOCK -
DESCRIPTION, BLOWER...............24-18
MOTOR RESISTOR BLOCK - DIAGNOSIS
AND TESTING, BLOWER...............24-19
MOTOR RESISTOR BLOCK -
INSTALLATION, BLOWER..............24-19
MOTOR RESISTOR BLOCK - OPERATION,
BLOWER...........................24-18
MOTOR RESISTOR BLOCK - REMOVAL,
BLOWER...........................24-19
MOTOR SWITCH - DESCRIPTION,
BLOWER...........................24-20
MOTOR SWITCH - DIAGNOSIS AND
TESTING, BLOWER...................24-20
MOTOR SWITCH - OPERATION, BLOWER . . 24-20
MOUNT - INSTALLATION, DISC BRAKE
CALIPER ADAPTER....................5-22
MOUNT - INSTALLATION, FRONT . . . 9-147,9-218,
9-287,9-59
MOUNT - INSTALLATION, REAR
....9-149,9-220,
9-288,9-61
MOUNT - REMOVAL, FRONT
. 9-146,9-217,9-286,
9-58
MOUNT - REMOVAL, REAR
. . 9-149,9-220,9-288,
9-61
MOUNTED STOP LAMP - INSTALLATION,
CENTER HIGH
.......................8L-11
MOUNTED STOP LAMP - REMOVAL,
CENTER HIGH
.......................8L-11
MOUNTED STOP LAMP UNIT -
INSTALLATION, CENTER HIGH
..........8L-11
MOUNTED STOP LAMP UNIT -
REMOVAL, CENTER HIGH
..............8L-11
MOUNTING - STANDARD PROCEDURE,
MATCH
.............................22-3
MUFFLER - 5.9L DIESEL - INSTALLATION
. 11-10
MUFFLER - 5.9L DIESEL - REMOVAL
.....11-10
MUFFLER - INSTALLATION
..............11-9
MUFFLER - REMOVAL
..................11-9
MULTI-FUNCTION SWITCH - DIAGNOSIS
AND TESTING
.......................8L-18MULTI-FUNCTION SWITCH -
INSTALLATION.......................8L-19
MULTI-FUNCTION SWITCH - REMOVAL . . . 8L-19
NAME PLATES - INSTALLATION,
EXTERIOR..........................23-38
NAME PLATES - REMOVAL, EXTERIOR....23-38
NATURAL VAC LEAK DETECTION ASSY -
DESCRIPTION.......................25-23
NATURAL VAC LEAK DETECTION ASSY -
INSTALLATION.......................25-25
NATURAL VAC LEAK DETECTION ASSY -
OPERATION.........................25-23
NATURAL VAC LEAK DETECTION ASSY -
REMOVAL..........................25-24
NAVIGATION - INSTALLATION, ANTENNA . . . 8A-6
NAVIGATION - REMOVAL, ANTENNA......8A-6
NAVIGATION/TELECOMMUNICATION -
DESCRIPTION........................8T-1
NAVIGATION/TELECOMMUNICATION -
OPERATION..........................8T-1
NECK SEAL - DIAGNOSIS AND TESTING,
RADIATOR CAP-TO-FILLER..............7-58
NEW MODULE / SWITCH OPERATING
MODES, STANDARD PROCEDURE -
CONFIGURING A......................8Q-3
NIGHT MIRROR - DESCRIPTION,
AUTOMATIC DAY.....................8N-11
NIGHT MIRROR - DIAGNOSIS AND
TESTING, AUTOMATIC DAY.............8N-11
NIGHT MIRROR - OPERATION,
AUTOMATIC DAY.....................8N-11
NIGHT MIRROR - REMOVAL,
AUTOMATIC DAY......................8N-12
NOISE - DIAGNOSIS AND TESTING,
WIND...............................23-2
NOISE OR VIBRATION - DIAGNOSIS AND
TESTING, TIRE.......................22-7
NOISE SUPPRESSION GROUND STRAP -
DESCRIPTION, RADIO..................8A-9
NOISE SUPPRESSION GROUND STRAP -
INSTALLATION, RADIO................8A-10
NOISE SUPPRESSION GROUND STRAP -
OPERATION, RADIO...................8A-9
NOISE SUPPRESSION GROUND STRAP -
REMOVAL, RADIO.....................8A-9
NON-DEPLOYED SUPPLEMENTAL
RESTRAINTS - STANDARD
PROCEDURE, HANDLING...............8O-6
NON-MONITORED CIRCUITS -
OPERATION..........................25-8
NOZZLE - DESCRIPTION, WASHER......8R-11
NOZZLE - INSTALLATION, WASHER......8R-12
NOZZLE - OPERATION, WASHER........8R-12
NOZZLE - REMOVAL, WASHER..........8R-12
NUMBER - DESCRIPTION, VEHICLE
IDENTIFICATION....................Intro.-1
NV241 GENII - ASSEMBLY, TRANSFER
CASE.............................21-428
NV241 GENII - CLEANING, TRANSFER
CASE.............................21-426
NV241 GENII - DESCRIPTION, TRANSFER
CASE.............................21-415
NV241 GENII - DIAGNOSIS AND
TESTING, TRANSFER CASE............21-416
NV241 GENII - DISASSEMBLY,
TRANSFER CASE....................21-417
NV241 GENII - INSPECTION, TRANSFER
CASE.............................21-426
NV241 GENII - INSTALLATION,
TRANSFER CASE....................21-438
NV241 GENII - OPERATION, TRANSFER
CASE.............................21-415
NV241 GENII - REMOVAL, TRANSFER
CASE.............................21-417
NV241 GENII - TRANSFER CASE........21-438
NV241/NV243 - TRANSFER CASE.......21-439
NV243 - ASSEMBLY, TRANSFER CASE . . . 21-496
NV243 - CLEANING, TRANSFER CASE . . . 21-493
NV243 - DESCRIPTION, TRANSFER CASE . 21-482
NV243 - DIAGNOSIS AND TESTING,
TRANSFER CASE....................21-483
NV243 - DISASSEMBLY, TRANSFER
CASE
.............................21-484
NV243 - INSPECTION, TRANSFER CASE
. . 21-493
NV243 - INSTALLATION, TRANSFER
CASE
.............................21-505
NV243 - OPERATION, TRANSFER CASE
. . 21-483
NV243 - REMOVAL, TRANSFER CASE
....21-484
DRINDEX 21
Description Group-Page Description Group-Page Description Group-Page