evic JEEP LIBERTY 2002 KJ / 1.G Repair Manual

STATIONARY GLASS
TABLE OF CONTENTS
page page
DOOR GLASS
REMOVAL............................172
INSTALLATION........................172
QUARTER WINDOW
REMOVAL............................172
INSTALLATION........................172WINDSHIELD
WARNING
WINDSHIELD SAFETY PRECAUTIONS....173
REMOVAL............................173
INSTALLATION........................173
DOOR GLASS
REMOVAL
(1) Remove the rear door glass run channel. (Refer
to 23 - BODY/DOORS - REAR/GLASS RUN CHAN-
NEL - REMOVAL)
INSTALLATION
(1) Install the rear door glass run channel. (Refer
to 23 - BODY/DOORS - REAR/GLASS RUN CHAN-
NEL - INSTALLATION)
QUARTER WINDOW
REMOVAL
(1) Remove the headliner as necessary to gain
access to the glass seal from the inside. (Refer to 23 -
BODY/INTERIOR/HEADLINER - REMOVAL)
(2) Cut urethane bonding from around quarter
window glass using a suitable sharp cold knife. A
pneumatic cutting device can be used if available.
(3) Separate glass from vehicle.
INSTALLATION
CAUTION: Open a window before installing glass.
This will avoid pressurizing the passenger compart-
ment. If a door or swing gate flip-up glass is
slammed before urethane is cured, water leaks can
result.
The window opening fence should be cleaned of old
urethane bonding material.
(1) Install the headliner as necessary. (Refer to 23
- BODY/INTERIOR/HEADLINER - INSTALLATION)
(2) Clean inside of glass with Mopar Glass Cleaner
and lint-free cloth.
(3) Apply PVC (vinyl) primer 25 mm (1 in.) wide
around edge of glass. Wipe with clean/dry lint-free
cloth.
(4) Apply fence primer around edge of fence. Allow
at least eighteen minutes drying time.
(5) Apply a 10 mm (0.4 in.) bead of urethane
around window vinyl border location.
(6)
Position glass into window opening and lock clips
into place.
23 - 172 STATIONARY GLASSKJ

WINDSHIELD
WARNING
WINDSHIELD SAFETY PRECAUTIONS
WARNING: DO NOT OPERATE THE VEHICLE
WITHIN 24 HOURS OF WINDSHIELD INSTALLATION.
IT TAKES AT LEAST 24 HOURS FOR URETHANE
ADHESIVE TO CURE. IF IT IS NOT CURED, THE
WINDSHIELD MAY NOT PERFORM PROPERLY IN
AN ACCIDENT.
²URETHANE ADHESIVES ARE APPLIED AS A
SYSTEM. USE GLASS CLEANER, GLASS PREP
SOLVENT, GLASS PRIMER, PVC (VINYL) PRIMER
AND PINCH WELD (FENCE) PRIMER PROVIDED BY
THE ADHESIVE MANUFACTURER. IF NOT, STRUC-
TURAL INTEGRITY COULD BE COMPROMISED.
²DAIMLERCHRYSLER DOES NOT RECOMMEND
GLASS ADHESIVE BY BRAND. TECHNICIANS
SHOULD REVIEW PRODUCT LABELS AND TECHNI-
CAL DATA SHEETS, AND USE ONLY ADHESIVES
THAT THEIR MANUFACTURES WARRANT WILL
RESTORE A VEHICLE TO THE REQUIREMENTS OF
FMVSS 212. TECHNICIANS SHOULD ALSO INSURE
THAT PRIMERS AND CLEANERS ARE COMPATIBLE
WITH THE PARTICULAR ADHESIVE USED.
²BE SURE TO REFER TO THE URETHANE MAN-
UFACTURER'S DIRECTIONS FOR CURING TIME
SPECIFICATIONS, AND DO NOT USE ADHESIVE
AFTER ITS EXPIRATION DATE.
²VAPORS THAT ARE EMITTED FROM THE URE-
THANE ADHESIVE OR PRIMER COULD CAUSE
PERSONAL INJURY. USE THEM IN A WELL-VENTI-
LATED AREA.
²SKIN CONTACT WITH URETHANE ADHESIVE
SHOULD BE AVOIDED. PERSONAL INJURY MAY
RESULT.
²ALWAYS WEAR EYE AND HAND PROTECTION
WHEN WORKING WITH GLASS.
CAUTION: Protect all painted and trimmed surfaces
from coming in contact with urethane or primers.
Be careful not to damage painted surfaces when
removing moldings or cutting urethane around
windshield.
REMOVAL
(1) Remove inside rear view mirror. (Refer to 23 -
BODY/INTERIOR/REAR VIEW MIRROR -
REMOVAL)
(2) Remove cowl cover. (Refer to 23 - BODY/EXTE-
RIOR/COWL GRILLE - REMOVAL)(3) Remove screws attaching windshield side mold-
ing to A-pillar.
(4) Remove upper windshield molding.
(5) Cut urethane bonding from around windshield
using a suitable sharp cold knife. A pneumatic cut-
ting device can be used if available.
(6) Separate windshield from vehicle.
INSTALLATION
WARNING: REVIEW ALL WARNINGS AND CAU-
TIONS IN THIS GROUP BEFORE PRECEDING WITH
INSTALLATION.
CAUTION: Open a window before installing wind-
shield. This will avoid pressurizing the passenger
compartment. If a door or swing gate flip-up glass
is slammed before urethane is cured, water leaks
can result.
The windshield fence should be cleaned of old ure-
thane bonding material. Support spacers should be
cleaned and properly installed on weld studs or
repair screws at bottom of windshield opening.
(1) Place replacement windshield into windshield
opening. Position glass in the center of the opening
against the support spacers. Mark the glass at the
support spacers with a grease pencil or masking tape
and ink pen to use as a reference for installation.
Remove replacement windshield from windshield
opening.
(2) Position the windshield inside up on a suitable
work surface with two padded, wood 10 cm by 10 cm
by 50 cm (4 in. by 4 in. by 20 in.) blocks, placed par-
allel 75 cm (2.5 ft.) apart.
(3) Clean inside of windshield with Mopar Glass
Cleaner and lint-free cloth.
(4) Apply clear glass primer 25 mm (1 in.) wide
around edge of windshield. Wipe with clean/dry lint-
free cloth.
(5) Apply black-out primer 15 mm (.75 in.) wide on
top and sides of windshield and 25 mm (1 in.) on bot-
tom of windshield. Allow at least three minutes dry-
ing time.
(6) Position windshield spacers on lower fence
above support spacers at the edge of the windshield
opening.
(7) Align the dot on the upper molding to the tick
mark in the center of the glass and install upper
molding onto windshield.
(8) Apply a 10 mm (0.4 in.) bead of urethane
around perimeter of windshield along the inside of
the moldings. Apply two beads along the bottom
edge.
KJSTATIONARY GLASS 23 - 173

CAUTION: If the snap ring is not fully seated in the
groove it will vibrate out, resulting in a clutch fail-
ure and severe damage to the front housing of the
compressor.
(6) Install the original clutch shims on the com-
pressor shaft.
(7) Install the clutch plate. Install the shaft hex
nut and tighten to 15±20 N´m (11±15 ft. lbs.).
(8) Check the clutch air gap with a feeler gauge
(Fig. 9). If the air gap does not meet the specification,
add or subtract shims as required. The air gap spec-
ification is 0.41 to 0.79 millimeter (0.016 to 0.031
inch).NOTE: The air gap is determined by the spacer
shims. When installing an original, or a new clutch
assembly, try the original shims first. When install-
ing a new clutch onto a compressor that previously
did not have a clutch, use a 1.0, 0.50, and 0.13 mil-
limeter (0.040, 0.020, and 0.005 inch) shims from the
new clutch hardware package that is provided with
the new clutch.
(9) To complete the procedure, (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/A/C
COMPRESSOR - INSTALLATION).
A/C COMPRESSOR CLUTCH
RELAY
DESCRIPTION
The compressor clutch relay is a International
Standards Organization (ISO) micro-relay. The termi-
nal designations and functions are the same as a con-
ventional ISO relay. However, the micro-relay
terminal orientation (footprint) is different, the cur-
rent capacity is lower, and the relay case dimensions
are smaller than those of the conventional ISO relay.
The compressor clutch relay is located in the Power
Distribution Center (PDC) in the engine compart-
ment. Refer to the PDC label for relay identification
and location.
OPERATION
The compressor clutch relay is a electromechanical
device that switches battery current to the compres-
sor clutch coil when the Powertrain Control Module
(PCM) grounds the coil side of the relay. The PCM
responds to inputs from the A/C Heater mode control
switch, the A/C low pressure switch, and the A/C
high pressure switch. (Refer to 24 - HEATING & AIR
CONDITIONING/CONTROLS/A/C COMPRESSOR
CLUTCH RELAY - DIAGNOSIS AND TESTING)
The compressor clutch relay cannot be repaired
and, if faulty or damaged, it must be replaced.
DIAGNOSIS AND TESTING - COMPRESSOR
CLUTCH RELAY
RELAY TEST
The compressor clutch relay (Fig. 10) is located in
the Power Distribution Center (PDC). Refer to the
PDC label for relay identification and location.
Remove the relay from the PDC to perform the fol-
lowing tests:
(1) A relay in the de-energized position should
have continuity between terminals 87A and 30, and
no continuity between terminals 87 and 30. If OK, go
to Step 2. If not OK, replace the faulty relay.
Fig. 8 CLUTCH PULLEY INSTALL
1 - ROTOR BEARING ASSEMBLY
2 - INSTALLER
Fig. 9 CHECK CLUTCH AIR GAP
1 - FEELER GAUGE
KJCONTROLS 24 - 15
A/C COMPRESSOR CLUTCH (Continued)

(2) Install and tighten the a/c low pressure switch
on the accumulator fitting. The switch should be
hand-tightened onto the accumulator fitting.
(3) Plug the wire harness connector into the a/c
low pressure switch.
(4) Connect the battery negative cable.
BLEND DOOR ACTUATOR
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.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove A/C housing from vehicle(Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
HVAC HOUSING - REMOVAL).
(3) Remove the screws that secure the blend door
actuator to the top of the HVAC housing. (Fig. 14).
(4) Remove the blend door actuator.
INSTALLATION
(1) Install the blend door actuator in place.
(2) Install and tighten the screws that secure the
blend door actuator to the housing. Tighten the
mounting screws to 2.4 ( .34) N´m (21 ( 3) in. lbs.).
(3) Install the HVAC housing into the vehicle(Re-
fer to 24 - HEATING & AIR CONDITIONING/DIS-
TRIBUTION/HVAC HOUSING - INSTALLATION).
(4) Install the blend door actuator electrical con-
nector from the wiring harness through the glove
box.
(5) Connect the battery negative cable.
BLOWER MOTOR RELAY
DESCRIPTION
The blower motor relay is a International Stan-
dards Organization (ISO)-type relay. The relay is a
electromechanical device that switches battery cur-
rent from a fuse in the Power Distribution Center
(PDC) directly to the blower motor. The relay is ener-
gized when the relay coil is provided a voltage signal
by the ignition switch. (Refer to 24 - HEATING &
AIR CONDITIONING/CONTROLS/BLOWER
MOTOR RELAY - DIAGNOSIS AND TESTING)
OPERATION
The blower motor relay is installed in a wire har-
ness connector that is secured to the passenger side
outboard end of the HVAC housing in the passenger
compartment, next to the HVAC wire harness con-
nector.
The blower motor relay cannot be repaired and, if
faulty or damaged, it must be replaced.
Fig. 14 HEATER CORE REMOVAL/INSTALLATION
1 - HEATER CORE
2- MOUNTING SCREW HOLE
3- INLET AND OUTLET TUBES
4- VACUUM HARNESS
5- ACTUATOR SCREWS (3)
6- ELECTRIC BLEND DOOR ACTUATOR
7- MOUNTING SCREW HOLE
8- HEATER CORE RETAINER TABS (4)
24 - 20 CONTROLSKJ
A/C LOW PRESSURE SWITCH (Continued)

CAUTION - REFRIGERANT HOSES/LINES/
TUBES PRECAUTIONS
Kinks or sharp bends in the refrigerant plumbing will
reduce the capacity of the entire system. High pressures
are produced in the system when it is operating.
Extreme care must be exercised to make sure that all
refrigerant system connections are pressure tight.
A good rule for the flexible hose refrigerant lines is
to keep the radius of all bends at least ten times the
diameter of the hose. Sharp bends will reduce the
flow of refrigerant. The flexible hose lines should be
routed so they are at least 80 millimeters (3 inches)
from the exhaust manifold. It is a good practice to
inspect all flexible refrigerant system hose lines at
least once a year to make sure they are in good con-
dition and properly routed.
There are two types of refrigerant fittings:
²
All fittings with O-rings need to be coated with
refrigerant oil before installation. Use only O-rings that
are the correct size and approved for use with R-134a
refrigerant. Failure to do so may result in a leak.
²Unified plumbing connections with gaskets can-
not be serviced with O-rings. The gaskets are not
reusable and new gaskets do not require lubrication
before installing.
Using the proper tools when making a refrigerant
plumbing connection is very important. Improper
tools or improper use of the tools can damage the
refrigerant fittings. Always use two wrenches when
loosening or tightening tube fittings. Use one wrench
to hold one side of the connection stationary, while
loosening or tightening the other side of the connec-
tion with a second wrench.
The refrigerant must be recovered completely from
the system before opening any fitting or connection.
Open the fittings with caution, even after the refrig-
erant has been recovered. If any pressure is noticed
as a fitting is loosened, tighten the fitting and
recover the refrigerant from the system again.
Do not discharge refrigerant into the atmosphere.
Use an R-134a refrigerant recovery/recycling device
that meets SAE Standard J2210.
The refrigerant system will remain chemically sta-
ble as long as pure, moisture-free R-134a refrigerant
and refrigerant oil is used. Dirt, moisture, or air can
upset this chemical stability. Operational troubles or
serious damage can occur if foreign material is
present in the refrigerant system.
When it is necessary to open the refrigerant sys-
tem, have everything needed to service the system
ready. The refrigerant system should not be left open
to the atmosphere any longer than necessary. Cap or
plug all lines and fittings as soon as they are opened
to prevent the entrance of dirt and moisture. All lines
and components in parts stock should be capped or
sealed until they are to be installed.All tools, including the refrigerant recycling equip-
ment, the manifold gauge set, and test hoses should
be kept clean and dry. All tools and equipment must
be designed for R-134a refrigerant.
STANDARD PROCEDURE
STANDARD PROCEDURE - REFRIGERANT
SYSTEM SERVICE EQUIPMENT
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) (Refer to 24 - HEATING &
AIR CONDITIONING/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.
Contact an automotive service equipment supplier for
refrigerant recovery/recycling/charging equipment.
Refer to the operating instructions supplied 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. 1). 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 suction
service port. This port is located on the suction line
between the accumulator outlet and the compressor.
HIGH PRESSURE GAUGE HOSE The high pres-
sure hose (Red with Black stripe) attaches to the dis-
charge service port. This port is located on the
discharge line between the compressor and the con-
denser inlet.
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.
24 - 40 PLUMBINGKJ
PLUMBING (Continued)

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.
NOTE: For a list of DTC's, refer to the charts in this
section.
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) 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.
(2) Turn the ignition switch on and access the
ªRead Faultº screen.
(3) Record all the DTC's and ªfreeze frameº infor-
mation shown on the DRB scan tool.
(4) 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.
(M)Malfunction Indicator Lamp (MIL) illuminated during engine operation if this DTC was recorded
(depending if required by CARB and/or EPA). MIL is displayed as an engine icon on instrument panel.
(G)Generator lamp illuminated
Generic Scan
Tool P-CodeDRB Scan Tool Display Brief Description of DTC
P0030 (M) 1/1 O2 Sensor Heater Circuit
MalfunctionProblem detected in oxygen sensor heater relay circuit.
P0031 (M) 1/1 O2 Sensor Heater Circuit Low Problem detected in oxygen sensor heater relay circuit.
P0032 (M) 1/1 O2 Sensor Heater Circuit High Problem detected in oxygen sensor heater relay circuit.
P0036 (M) 1/2 O2 Sensor Heater Circuit
MalfunctionProblem detected in oxygen sensor heater relay circuit.
P0037 (M) 1/2 O2 Sensor Heater Circuit Low Problem detected in oxygen sensor heater relay circuit.
P0038 (M) 1/2 O2 Sensor Heater Circuit High Problem detected in oxygen sensor heater relay circuit.
P0043 (M) 1/3 O2 Sensor Heater Circuit Low Problem detected in oxygen sensor heater relay circuit.
P0044 (M) 1/3 O2 Sensor Heater Circuit High Problem detected in oxygen sensor heater relay circuit.
P0051 (M) 2/1 O2 Sensor Heater Circuit Low Problem detected in oxygen sensor heater relay circuit.
P0052 (M) 2/1 O2 Sensor Heater Circuit High Problem detected in oxygen sensor heater relay circuit.
25 - 2 EMISSIONS CONTROLKJ
EMISSIONS CONTROL (Continued)

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
O2S is used to detect the amount of oxygen in the
exhaust gas before the gas enters the catalytic con-
verter. The PCM calculates the A/F mixture from the
output of the O2S. A low voltage indicates high oxy-
gen content (lean mixture). A high voltage indicates a
low content of oxygen (rich mixture).
When the upstream O2S detects a lean condition,
there is an abundance of oxygen in the exhaust gas.
A functioning converter would store this oxygen so it
can use it for the oxidation of HC and CO. As the
converter absorbs the oxygen, there will be a lack of
oxygen downstream of the converter. The output of
the downstream O2S will indicate limited activity in
this condition.
As the converter loses the ability to store oxygen,
the condition can be detected from the behavior of
the downstream O2S. When the efficiency drops, no
chemical reaction takes place. This means the con-
centration of oxygen will be the same downstream as
upstream. The output voltage of the downstream
O2S copies the voltage of the upstream sensor. The
only difference is a time lag (seen by the PCM)
between the switching of the O2S's.
To monitor the system, the number of lean-to-rich
switches of upstream and downstream O2S's is
counted. The ratio of downstream switches to
upstream switches is used to determine whether the
catalyst is operating properly. An effective catalyst
will have fewer downstream switches than it has
upstream switches i.e., a ratio closer to zero. For a
totally ineffective catalyst, this ratio will be one-to-
one, indicating that no oxidation occurs in the device.
The system must be monitored so that when cata-
lyst efficiency deteriorates and exhaust emissions
increase to over the legal limit, the MIL will be illu-
minated.
DESCRIPTION - TRIP DEFINITION
The term ªTripº has different meanings depending
on what the circumstances are. If the MIL (Malfunc-
tion Indicator Lamp) is OFF, a Trip is defined as
when the Oxygen Sensor Monitor and the Catalyst
Monitor have been completed in the same drive cycle.
When any Emission DTC is set, the MIL on the
dash is turned ON. When the MIL is ON, it takes 3good trips to turn the MIL OFF. In this case, it
depends on what type of DTC is set to know what a
ªTripº is.
For the Fuel Monitor or Mis-Fire Monitor (contin-
uous monitor), the vehicle must be operated in the
ªSimilar Condition Windowº for a specified amount of
time to be considered a Good Trip.
If a Non-Contiuous OBDII Monitor fails twice in a
row and turns ON the MIL, re-running that monitor
which previously failed, on the next start-up and
passing the monitor, is considered to be a Good Trip.
These will include the following:
²Oxygen Sensor
²Catalyst Monitor
²Purge Flow Monitor
²Leak Detection Pump Monitor (if equipped)
²EGR Monitor (if equipped)
²Oxygen Sensor Heater Monitor
If any other Emission DTC is set (not an OBDII
Monitor), a Good Trip is considered to be when the
Oxygen Sensor Monitor and Catalyst Monitor have
been completed; or 2 Minutes of engine run time if
the Oxygen Sensor Monitor or Catalyst Monitor have
been stopped from running.
It can take up to 2 Failures in a row to turn on the
MIL. After the MIL is ON, it takes 3 Good Trips to
turn the MIL OFF. After the MIL is OFF, the PCM
will self-erase the DTC after 40 Warm-up cycles. A
Warm-up cycle is counted when the ECT (Engine
Coolant Temperature Sensor) has crossed 160ÉF and
has risen by at least 40ÉF since the engine has been
started.
DESCRIPTION - COMPONENT MONITORS
There are several components that will affect vehi-
cle emissions if they malfunction. If one of these com-
ponents malfunctions the Malfunction Indicator
Lamp (MIL) will illuminate.
Some of the component monitors are checking for
proper operation of the part. Electrically operated
components now have input (rationality) and output
(functionality) checks. Previously, a component like
the Throttle Position sensor (TPS) was checked by
the PCM for an open or shorted circuit. If one of
these conditions occurred, a DTC was set. Now there
is a check to ensure that the component is working.
This is done by watching for a TPS indication of a
greater or lesser throttle opening than MAP and
engine rpm indicate. In the case of the TPS, if engine
vacuum is high and engine rpm is 1600 or greater
and the TPS indicates a large throttle opening, a
DTC will be set. The same applies to low vacuum if
the TPS indicates a small throttle opening.
All open/short circuit checks or any component that
has an associated limp in will set a fault after 1 trip
with the malfunction present. Components without
KJEMISSIONS CONTROL 25 - 19
EMISSIONS CONTROL (Continued)

an associated limp in will take two trips to illumi-
nate the MIL.
Refer to the Diagnostic Trouble Codes Description
Charts in this section and the appropriate Power-
train Diagnostic Procedure Manual for diagnostic
procedures.
DESCRIPTION - NON-MONITORED CIRCUITS
The PCM does not monitor the following circuits,
systems and conditions that could have malfunctions
causing driveability problems. The PCM might not
store diagnostic trouble codes for these conditions.
However, problems with these systems may cause the
PCM to store diagnostic trouble codes for other sys-
tems or components. For example, a fuel pressure
problem will not register a fault directly, but could
cause a rich/lean condition or misfire. This could
cause the PCM to store an oxygen sensor or misfire
diagnostic trouble code
FUEL PRESSURE
The fuel pressure regulator controls fuel system
pressure. The PCM cannot detect a clogged fuel
pump inlet filter, clogged in-line fuel filter, or a
pinched fuel supply or return line. However, these
could result in a rich or lean condition causing the
PCM to store an oxygen sensor or fuel system diag-
nostic trouble code.
SECONDARY IGNITION CIRCUIT
The PCM cannot detect an inoperative ignition coil,
fouled or worn spark plugs, ignition cross firing, or
open spark plug cables.
CYLINDER COMPRESSION
The PCM cannot detect uneven, low, or high engine
cylinder compression.
EXHAUST SYSTEM
The PCM cannot detect a plugged, restricted or
leaking exhaust system, although it may set a fuel
system fault.
FUEL INJECTOR MECHANICAL MALFUNCTIONS
The PCM cannot determine if a fuel injector is
clogged, the needle is sticking or if the wrong injectoris installed. However, these could result in a rich or
lean condition causing the PCM to store a diagnostic
trouble code for either misfire, an oxygen sensor, or
the fuel system.
EXCESSIVE OIL CONSUMPTION
Although the PCM monitors engine exhaust oxygen
content when the system is in closed loop, it cannot
determine excessive oil consumption.
THROTTLE BODY AIRFLOW
The PCM cannot detect a clogged or restricted air
cleaner inlet or filter element.
VACUUM ASSIST
The PCM cannot detect leaks or restrictions in the
vacuum circuits of vacuum assisted engine control
system devices. However, these could cause the PCM
to store a MAP sensor diagnostic trouble code and
cause a high idle condition.
PCM SYSTEM GROUND
The PCM cannot determine a poor system ground.
However, one or more diagnostic trouble codes may
be generated as a result of this condition. The mod-
ule should be mounted to the body at all times, also
during diagnostic.
PCM CONNECTOR ENGAGEMENT
The PCM may not be able to determine spread or
damaged connector pins. However, it might store
diagnostic trouble codes as a result of spread connec-
tor pins.
DESCRIPTION - HIGH AND LOW LIMITS
The PCM compares input signal voltages from each
input device with established high and low limits for
the device. If the input voltage is not within limits
and other criteria are met, the PCM stores a diagnos-
tic trouble code in memory. Other diagnostic trouble
code criteria might include engine RPM limits or
input voltages from other sensors or switches that
must be present before verifying a diagnostic trouble
code condition.
DESCRIPTION - LOAD VALUE
ENGINE IDLE/NEUTRAL 2500 RPM/NEUTRAL
All Engines 2% to 8% of Maximum Load 9% to 17% of Maximum Load
25 - 20 EMISSIONS CONTROLKJ
EMISSIONS CONTROL (Continued)

EVAP/PURGE SOLENOID
DESCRIPTION
The duty cycle EVAP canister purge solenoid (DCP)
is located in the engine compartment. It is attached
to a bracket located between the battery and the
Power Distribution Center (PDC). The EVAP system
test port is located near the solenoid.
OPERATION
The duty cycle EVAP canister purge solenoid (DCP)
regulates the rate of vapor flow from the EVAP can-
ister to the intake manifold. The Powertrain Control
Module (PCM) operates the solenoid.
During the cold start warm-up period and the hot
start time delay, the PCM does not energize the sole-
noid. When de-energized, no vapors are purged. The
PCM de-energizes the solenoid during open loop oper-
ation.
The engine enters closed loop operation after it
reaches a specified temperature and the time delay
ends. During closed loop operation, the PCM cycles
(energizes and de-energizes) the solenoid 5 or 10
times per second, depending upon operating condi-
tions. The PCM varies the vapor flow rate by chang-
ing solenoid pulse width. Pulse width is the amount
of time that the solenoid is energized. The PCM
adjusts solenoid pulse width based on engine operat-
ing condition.
REMOVAL
The duty cycle EVAP canister purge solenoid (DCP)
is located in the engine compartment (Fig. 2). It is
attached to a bracket located between the battery
and the Power Distribution Center (PDC). The EVAP
system test port is located near the solenoid (Fig. 2).
(1) Disconnect electrical wiring connector at sole-
noid.
(2) Disconnect vacuum harness at solenoid.
(3) Remove solenoid and its support bracket (pull
straight up).
INSTALLATION
(1) Slip EVAP canister purge solenoid onto its
mounting bracket.
(2) Connect vacuum harness to solenoid.
(3) Connect electrical connector to solenoid.
FUEL FILLER CAP
DESCRIPTION
The plastic fuel tank filler tube cap is threaded
onto the end of the fuel fill tube. All models are
equipped with a 1/4 turn cap.
OPERATION
The loss of any fuel or vapor out of fuel filler tube
is prevented by the use of a pressure-vacuum fuel fill
cap. Relief valves inside the cap will release fuel tank
pressure at predetermined pressures. Fuel tank vac-
uum will also be released at predetermined values.
This cap must be replaced by a similar unit if
replacement is necessary. This is in order for the sys-
tem to remain effective.
CAUTION: Remove fill cap before servicing any fuel
system component to relieve tank pressure. If
equipped with an ORVR system and a Leak Detec-
tion Pump (LDP), the cap must be tightened
securely. If cap is left loose, a Diagnostic Trouble
Code (DTC) may be set.
LEAK DETECTION PUMP
DESCRIPTION
The Leak Detection Pump (LDP) is bolted to the
front of the fuel tank (Fig. 1).
The Leak Detection Pump (LDP) is used only with
certain emission packages.
The LDP is a device used to detect a leak in the
evaporative system.
Fig. 2 EVAP / PURGE SOLENOID LOCATION
1 - BATTERY
2 - EVAP/PURGE SOLENOID LOCATION
3 - MOUNTING BRACKET
4 - POWER DISTRIBUTION CENTER (PDC)
5 - SOLENOID ELECTRICAL CONNECTOR
6 - EVAP SYSTEM TEST PORT
KJEVAPORATIVE EMISSIONS 25 - 27

COVER - REMOVAL, COWL TRIM.......23-157
COVER - REMOVAL, INSTRUMENT
PANEL TOP........................23-152
COVER - REMOVAL, STRUCTURAL........9-55
COVER(S) - DESCRIPTION, CYLINDER
HEAD...............................9-25
COVER(S) - INSTALLATION, CYLINDER
HEAD...........................9-26,9-34
COVER(S) - INSTALLATION, TIMING
BELT / CHAIN........................9-76
COVER(S) - REMOVAL, CYLINDER HEAD . . 9-25,
9-34
COVER(S) - REMOVAL, TIMING BELT /
CHAIN..............................9-74
COWL GRILLE - INSTALLATION........23-140
COWL GRILLE - REMOVAL............23-140
COWL TRIM COVER - INSTALLATION....23-157
COWL TRIM COVER - REMOVAL.......23-157
COWL WEATHERSTRIP - INSTALLATION . 23-185
COWL WEATHERSTRIP - REMOVAL.....23-185
COWL/PLENUM SEAL - INSTALLATION . . . 23-187
COWL/PLENUM SEAL - REMOVAL......23-187
COWL/PLENUM WINDOW BAFFLE SEAL -
INSTALLATION......................23-187
COWL/PLENUM WINDOW BAFFLE SEAL -
REMOVAL.........................23-187
CRADLE CROSSMEMBER -
INSTALLATION, ENGINE................13-6
CRADLE CROSSMEMBER - REMOVAL,
ENGINE.............................13-6
CRANKSHAFT - DESCRIPTION...........9-42
CRANKSHAFT - INSPECTION.............9-43
CRANKSHAFT - INSTALLATION...........9-43
CRANKSHAFT - REMOVAL..............9-43
CRANKSHAFT OIL SEAL - FRONT -
INSTALLATION........................9-47
CRANKSHAFT OIL SEAL - FRONT -
REMOVAL...........................9-46
CRANKSHAFT OIL SEAL - REAR -
INSTALLATION........................9-48
CRANKSHAFT OIL SEAL - REAR -
REMOVAL...........................9-48
CRANKSHAFT POSITION SENSOR -
DESCRIPTION.......................14-30
CRANKSHAFT POSITION SENSOR -
INSTALLATION.......................14-32
CRANKSHAFT POSITION SENSOR -
OPERATION.........................14-31
CRANKSHAFT POSITION SENSOR -
REMOVAL..........................14-31
CROSSMEMBER - INSTALLATION,
ENGINE CRADLE......................13-6
CROSSMEMBER - INSTALLATION,
RADIATOR.........................23-146
CROSSMEMBER - INSTALLATION, REAR . . . 13-7
CROSSMEMBER - REMOVAL, ENGINE
CRADLE.............................13-6
CROSSMEMBER - REMOVAL, RADIATOR . 23-146
CROSSMEMBER - REMOVAL, REAR.......13-7
CROSS-OVER PIPE - INSTALLATION.......11-3
CROSS-OVER PIPE - REMOVAL..........11-3
CRUISE INDICATOR - DESCRIPTION......8J-16
CRUISE INDICATOR - OPERATION.......8J-17
CURTAIN AIRBAG - DESCRIPTION, SIDE . . 8O-38
CURTAIN AIRBAG - INSTALLATION, SIDE . . 8O-41
CURTAIN AIRBAG - OPERATION, SIDE....8O-39
CURTAIN AIRBAG - REMOVAL, SIDE.....8O-40
CUSHION - FRONT - INSTALLATION,
SEAT .............................23-167
CUSHION - FRONT - INSTALLATION,
SEAT BACK........................23-167
CUSHION - FRONT - REMOVAL, SEAT . . . 23-167
CUSHION - FRONT - REMOVAL, SEAT
BACK.............................23-167
CUSHION - REAR - INSTALLATION, SEAT . 23-171
CUSHION - REAR - INSTALLATION, SEAT
BACK.............................23-170
CUSHION - REAR - REMOVAL, SEAT....23-171
CUSHION - REAR - REMOVAL, SEAT
BACK
.............................23-170
CUSHION COVER - FRONT -
INSTALLATION, SEAT
.................23-167
CUSHION COVER - FRONT - REMOVAL,
SEAT
.............................23-167
CUSHION SIDE SHIELDS -
INSTALLATION, SEAT
.................23-167
CUSHION SIDE SHIELDS - REMOVAL,
SEAT
.............................23-167CUSTOMER PREFERENCES - STANDARD
PROCEDURE, RKE TRANSMITTER........8N-8
CV JOINT/BOOT-INNER - INSTALLATION . . . 3-17
CV JOINT/BOOT-INNER - REMOVAL.......3-15
CV JOINT/BOOT-OUTER - INSTALLATION . . . 3-13
CV JOINT/BOOT-OUTER - REMOVAL.......3-12
CYLINDER - DESCRIPTION, MASTER......5-24
CYLINDER - INSPECTION, MASTER........6-9
CYLINDER - INSTALLATION, FLIP-UP
GLASS SUPPORT...................23-139
CYLINDER - INSTALLATION, LOCK......23-125,
23-138
CYLINDER - INSTALLATION, LOCK.......19-11
CYLINDER - INSTALLATION, MASTER.....5-25
CYLINDER - INSTALLATION, SUPPORT . . . 23-120
CYLINDER - OPERATION, MASTER........5-24
CYLINDER - REMOVAL, FLIP-UP GLASS
SUPPORT.........................23-139
CYLINDER - REMOVAL, LOCK....23-125,23-137
CYLINDER - REMOVAL, LOCK...........19-10
CYLINDER - REMOVAL, MASTER.........5-25
CYLINDER - REMOVAL, SUPPORT......23-120
CYLINDER BLEEDING - STANDARD
PROCEDURE, MASTER.................5-24
CYLINDER BORE HONING - STANDARD
PROCEDURE.........................9-39
CYLINDER COMBUSTION PRESSURE
LEAKAGE - DIAGNOSIS AND TESTING......9-8
CYLINDER COMPRESSION PRESSURE -
DIAGNOSIS AND TESTING...............9-8
CYLINDER FLUID LEVEL - STANDARD
PROCEDURES, MASTER................5-26
CYLINDER HEAD - DESCRIPTION.........9-30
CYLINDER HEAD COVER(S) -
DESCRIPTION........................9-25
CYLINDER HEAD COVER(S) -
INSTALLATION....................9-26,9-34
CYLINDER HEAD COVER(S) - REMOVAL . . . 9-25,
9-34
CYLINDER HEAD GASKET - DIAGNOSIS
AND TESTING....................9-19,9-30
CYLINDER LOCK SWITCH -
DESCRIPTION, DOOR..................8Q-9
CYLINDER LOCK SWITCH -
DESCRIPTION, TAILGATE...............8N-9
CYLINDER LOCK SWITCH - DIAGNOSIS
AND TESTING, DOOR.................8Q-10
CYLINDER LOCK SWITCH - DIAGNOSIS
AND TESTING, TAILGATE...............8N-9
CYLINDER LOCK SWITCH -
INSTALLATION, DOOR.................8Q-10
CYLINDER LOCK SWITCH -
INSTALLATION, TAILGATE..............8N-10
CYLINDER LOCK SWITCH - OPERATION,
DOOR.............................8Q-10
CYLINDER LOCK SWITCH - OPERATION,
TAILGATE...........................8N-9
CYLINDER LOCK SWITCH - REMOVAL,
DOOR.............................8Q-10
CYLINDER LOCK SWITCH - REMOVAL,
TAILGATE..........................8N-10
CYLINDER/POWER BOOSTER -
DIAGNOSIS AND TESTING, MASTER . . 5-21,5-24
CYLINDERS - ASSEMBLY, WHEEL.........5-29
CYLINDERS - CLEANING, WHEEL.........5-28
CYLINDERS - DISASSEMBLY, WHEEL......5-28
CYLINDERS - INSPECTION, WHEEL.......5-29
CYLINDERS - INSTALLATION, WHEEL
.....5-29
CYLINDERS - REMOVAL, WHEEL
.........5-28
DAMAGED OR WORN THREADS -
STANDARD PROCEDURE, REPAIR
.........9-9
DAMPER - INSTALLATION, VIBRATION
.....9-55
DAMPER - REMOVAL, VIBRATION
........9-54
DATA LINK CONNECTOR - DESCRIPTION
. . 8E-10
DATA LINK CONNECTOR - OPERATION
....8E-10
DAYTIME RUNNING LAMP RELAY -
DESCRIPTION
.......................8L-20
DAYTIME RUNNING LAMP RELAY -
INSTALLATION
.......................8L-21
DAYTIME RUNNING LAMP RELAY -
OPERATION
.........................8L-20
DAYTIME RUNNING LAMP RELAY -
REMOVAL
..........................8L-21
DECOUPLER - DIAGNOSIS AND
TESTING, GENERATOR
................8F-27
DECOUPLER PULLEY - DESCRIPTION,
GENERATOR
........................8F-26DECOUPLER PULLEY - INSTALLATION,
GENERATOR........................8F-30
DECOUPLER PULLEY - OPERATION,
GENERATOR........................8F-27
DECOUPLER PULLEY - REMOVAL,
GENERATOR........................8F-27
DEFINITION - DESCRIPTION, TRIP.......25-19
DEFLECTOR - INSTALLATION, WIND.....23-180
DEFLECTOR - REMOVAL, WIND........23-180
DEFOGGER - DESCRIPTION, REAR
WINDOW............................8G-3
DEFOGGER - OPERATION, REAR
WINDOW............................8G-3
DEFOGGER FUNCTION - DIAGNOSIS AND
TESTING, REAR HVAC CONTROL
ASSEMBLY WINDOW..................8G-9
DEFOGGER GRID - DESCRIPTION, REAR
WINDOW............................8G-5
DEFOGGER GRID - DIAGNOSIS AND
TESTING, REAR WINDOW..............8G-5
DEFOGGER GRID - OPERATION, REAR
WINDOW............................8G-5
DEFOGGER RELAY - DESCRIPTION,
REAR WINDOW.......................8G-6
DEFOGGER RELAY - DIAGNOSIS AND
TESTING, REAR WINDOW..............8G-6
DEFOGGER RELAY - INSTALLATION,
REAR WINDOW.......................8G-7
DEFOGGER RELAY - OPERATION, REAR
WINDOW............................8G-6
DEFOGGER RELAY - REMOVAL, REAR
WINDOW............................8G-7
DEFOGGER SWITCH - DESCRIPTION,
REAR WINDOW.......................8G-8
DEFOGGER SWITCH - DIAGNOSIS AND
TESTING, REAR WINDOW..............8G-8
DEFOGGER SWITCH - OPERATION, REAR
WINDOW............................8G-8
DEFOGGER SYSTEM - DIAGNOSIS AND
TESTING, REAR WINDOW..............8G-4
DEFROST DOO - INSTALLATION, FLOOR . . 24-37
DEFROST DOOR - REMOVAL...........24-35
DEFROST DOOR - REMOVAL, FLOOR.....24-36
DEFROST DOOR ACTUATOR -
INSTALLATION, FLOOR................24-25
DEFROST DOOR ACTUATOR - REMOVAL,
FLOOR.............................24-24
DEFROST DUCT/DEMISTER ADAPTOR -
REMOVAL..........................24-32
DEFROST/DEMISTER DUCT -
INSTALLATION.......................24-32
DELIVERY - DESCRIPTION, FUEL.........14-2
DELIVERY - OPERATION, FUEL...........14-3
DEMAGNETIZING - STANDARD
PROCEDURE, COMPASS...............8M-2
DEMISTER OUTLETS - DESCRIPTION.....24-29
DEPLOYMENT - STANDARD
PROCEDURE, SERVICE AFTER A
SUPPLEMENTAL RESTRAINT............8O-6
DETECTION PUMP - DESCRIPTION, LEAK . 25-27
DETECTION PUMP - INSTALLATION,
LEAK..............................25-28
DETECTION PUMP - OPERATION, LEAK . . . 25-28
DETECTION PUMP - REMOVAL, LEAK....25-28
DEVICES - STANDARD PROCEDURE,
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE........................8W-01-8
DIAGNOSIS CHART - DIAGNOSIS AND
TESTING, COOLING SYSTEM.............7-6
DIAGNOSIS, DIAGNOSIS AND TESTING -
WATER DRAINAGE AND WIND NOISE . . . 23-176
DIAGNOSTIC PROCEDURES, DIAGNOSIS
AND TESTING......................23-176
DIAGNOSTIC TROUBLE CODES -
DESCRIPTION........................25-2
DIAGNOSTICS (OBD) - DIAGNOSIS AND
TESTING, ON-BOARD...................7-3
DIAGRAMS - DESCRIPTION, HOW TO
USE WIRING......................8W-01-1
DIAGRAMS - HYDRAULIC SCHEMATICS,
SCHEMATICS.......................21-100
DIESEL - TORQUE, EXCEPT.............8F-23
DIFFERENTIAL - ASSEMBLY
........3-105,3-41
DIFFERENTIAL - DISASSEMBLY
.....3-105,3-41
DIFFERENTIAL - INSTALLATION
. 3-105,3-42,3-73
DIFFERENTIAL - REMOVAL
.....3-104,3-40,3-71
DIFFERENTIAL - TRAC-LOK - ASSEMBLY
. . 3-109,
3-77
KJINDEX 7
Description Group-Page Description Group-Page Description Group-Page