ignition CHRYSLER CARAVAN 2005 Service Manual

The supplemental cabin heater only operates when
the engine is running, the mileage exceeds 8 kilome-
ter (5 mph) and the fuel tank volume exceeds 1/8 of a
tank. The supplemental heater control module moni-
tors blower speed and combustion during its start-up.
The cabin heater should operate if the coolant tem-
perature is below 40É C (104É F).
AUTOMATIC TEMPERATURE CONTROL
SYSTEM
The automatic temperature control (ATC) system
will activate the supplemental cabin heater based on
engine coolant temperature and interior component
settings. The cabin heater can operate in a full or
partial load range as well as an idle mode all depen-
dent on the engine coolant temperature. The cabin
heater will also turn off if the A/C-heater tempera-
ture control is lowered to less than the lower set
point. The cabin heater can take up to three minutes
to completely shut down when either the heater tem-
perature is set below the lower set point or the vehi-
cle ignition is shut down.
NOTE: Do not apply a strong vacuum source such
as a garage ventilation system directly on the sup-
plemental cabin heater exhaust line. Too strong of a
vacuum can prevent the supplemental cabin heater
from starting. If required, place the vacuum source
at least 75 mm (3 in.) away from the exhaust line.
The supplemental cabin heater only operates when
the engine is running, the mileage exceeds 8 kilome-ter (5 mph) and the fuel tank volume exceeds 1/8 of a
tank. The supplemental heater control module moni-
tors blower speed and combustion during its start-up.
The cabin heater should operate if the coolant tem-
perature is below 40É C (104É F).
WARNING
WARNING: DO NOT OPERATE THE DIESEL SUP-
PLEMENTAL CABIN HEATER IN AN ENCLOSED
AREA SUCH AS A GARAGE THAT DOES NOT HAVE
EXHAUST VENTILATION FACILITIES. ALWAYS VENT
THE CABIN HEATER EXHAUST WHEN OPERATING
THE CABIN HEATER. ALLOW THE DIESEL SUPPLE-
MENTAL CABIN HEATER TO COOL BEFORE PER-
FORMING ANY SERVICE PROCEDURES TO THE
CABIN HEATER. VERIFY THAT ALL DIESEL SUP-
PLEMENTAL CABIN HEATER FUEL LINES ARE
SECURELY FASTENED TO THEIR RESPECTIVE
COMPONENTS BEFORE PERFORMING ANY SER-
VICE PROCEDURES TO THE CABIN HEATER. FAIL-
URE TO FOLLOW THESE INSTRUCTION MAY
RESULT IN PERSONAL INJURY OR DEATH.
DIAGNOSIS AND TESTING
SUPPLEMENTAL CABIN HEATER
Refer to the Symptoms Diagnosis table for basic
checks of the diesel fueled supplemental cabin heater.
SYMPTOMS DIAGNOSIS
Symptom Possible Causes
Smell of diesel fuel. Check cabin heater system integration in vehicle's fuel system. Check
fuel lines for leakage, kinks or obstructions. If OK, Inspect the inlet
muffler, drain as necessary. Re-test the cabin heater and re-inspect.
Inspect the exhaust tube and cabin heater for the presence of external
fuel. If presence of external fuel is observed on the heater unit or in the
exhaust tube or after draining and testing. Remove the cabin heater
from vehicle and repair or replace components as required.
Heater does not achieve full load
operation.Check cabin heater operation with DRBIIITscan tool and replace
components as required.
Continuous white smoke from heater
exhaust during combustion operation.Check cabin heater operation with DRBIIITscan tool and replace
components as required. White smoke is typical in extreme weather
conditions.
Heater can not be switched off. Check cabin heater operation with DRBIIITscan tool and replace
components as required.
Heater does not operate. Diagnosis cabin heater control module using the DRBIIITscan tool and
the procedures listed in Vehicle Performance under Cabin Heater
Diagnosis in Group 18.
24 - 114 CABIN HEATERRS
CABIN HEATER (Continued)

NOTE: Verify that there is more than 1/8 of a tank of
fuel in the vehicle's fuel tank before performing this
procedure. Add fuel, if necessary.
NOTE: Failure to prime the dosing pump after drain-
ing the supplemental cabin fuel line will prevent
cabin heater activation during the first attempt to
start the cabin heater. This will also set a diagnostic
trouble code (DTC) in the cabin heater control's
memory. Do not perform the Dosing Pump Priming
procedure if an attempt was made to start the cabin
heater without priming the dosing pump first. This
will put excess fuel in the cabin heater and cause
smoke to emit from the cabin heater exhaust pipe
when cabin heater activation occurs.
(7) Connect the DRBIIItscan tool to the diagnos-
tic link connector.
(8) Turn the ignition to the ON position.
NOTE: Do not activate the dosing pump prime more
than one time. This will put excess fuel in the sup-
plemental cabin heater and cause smoke to emit
from the cabin heater exhaust pipe when cabin
heater activation occurs.
NOTE: A clicking noise heard coming from the dos-
ing pump indicates that the pump is operational.
(9) With the DRBIIItscan tool in Cabin Heater,
select System Tests and Dosing Pump Prime. Allow
the dosing pump to run for the full 45 second cycle
time. When the 45 second cycle is complete, press
Page Back on the DRBIIItscan tool key pad to exit
the Dosing Pump Prime. The Dosing Pump Priming
procedure is now complete.
HEATER HOSES
REMOVAL
(1) Raise and support the vehicle. Take note of the
location of the flexible section of the cabin heater
exhaust tube.
(2) Drain the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE).
NOTE: Complete removal of the supplemental cabin
heater from vehicle is not required, lowering the
cabin heater allows easier access to coolant line
clamps.(3) Lower the supplemental cabin heater from the
vehicle (Refer to 24 - HEATING & AIR CONDITION-
ING/CABIN HEATER/HEATER UNIT - REMOVAL).
(4) Remove the clamps from both flexible coolant
line ends.
NOTE: It is recommended that both flexible cabin
heater coolant lines be replaced if either cabin
heater coolant line is damaged.
(5) Remove both coolant lines from vehicle.
INSTALLATION
(1) Install both flexible coolant lines to the supple-
mental cabin heater and install the clamps.
(2) Install the flexible coolant lines to the coolant
pipes and install the clamps.
(3) Install the supplemental cabin heater into the
vehicle (Refer to 24 - HEATING & AIR CONDITION-
ING/CABIN HEATER/HEATER UNIT - INSTALLA-
TION).
(4) Lower the vehicle.
(5) Fill the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE).
(6) Verify operation of the supplemental cabin
heater.
HEATER PIPES
REMOVAL
WARNING: ALLOW THE ENGINE COOLING SYSTEM
TO COOL COMPLETELY BEFORE REMOVING RADI-
ATOR CAP OR DRAINING THE ENGINE COOLING
SYSTEM. PERSONAL INJURY MAY RESULT IF THE
ENGINE COOLING SYSTEM IS OPENED WHILE
ENGINE COOLANT IS HOT AND UNDER PRES-
SURE.
NOTE: Steel heater lines from engine compartment
to the supplemental cabin heater are part of an
assembly that includes the air intake pipe. If the
cabin heater lines or air intake pipe require removal
or replacement the entire cabin heater assembly
will require removal or replacement.
(1) Drain the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE).
(2) Remove clamps from both the EGR cooler and
the lower heater port. Separate hoses from the mat-
ing plumbing port (Fig. 6).
RSCABIN HEATER24 - 119
FUEL LINE (Continued)

The following is a list of the monitored compo-
nents:
²Catalyst Monitor
²Comprehensive Components
²EGR (if equipped)
²Fuel Control (rich/lean)
²Oxygen Sensor Monitor
²Oxygen Sensor Heater Monitor
²Purge
²Misfire
²Natural Vacuum Leak Detection (NVLD)
COMPREHENSIVE COMPONENTS
Along with the major monitors, OBD II requires
that the diagnostic system monitor any component
that could affect emissions levels. In many cases,
these components were being tested under OBD I.
The OBD I requirements focused mainly on testing
emissions-related components for electrical opens and
shorts.
However, OBD II also requires that inputs from
powertrain components to the PCM be tested for
rationality, and that outputs to powertrain compo-
nents from the PCM be tested forfunctionality.
Methods for monitoring the various Comprehensive
Component monitoring include:
(1) Circuit Continuity
²Open
²Shorted high
²Shorted to ground
(2) Rationality or Proper Functioning
²Inputs tested for rationality
²Outputs tested for functionality
NOTE: Comprehensive component monitors are
continuous. Therefore, enabling conditions do not
apply. All will set a DTC and illuminate the MIL in 1-
trip.
Input RationalityÐWhile input signals to the
PCM are constantly being monitored for electrical
opens and shorts, they are also tested for rationality.
This means that the input signal is compared against
other inputs and information to see if it makes sense
under the current conditions.
PCM sensor inputs that are checked for rationality
include:
²Manifold Absolute Pressure (MAP) Sensor
²Oxygen Sensor (O2S) (slow response)
²Engine Coolant Temperature (ECT) Sensor
²Camshaft Position (CMP) Sensor
²Vehicle Speed Sensor
²Crankshaft Position (CKP) Sensor
²Intake Air Temperature (IAT) Sensor
²Throttle Position (TPS) Sensor
²Ambient/Battery Temperature Sensors
²Power Steering Switch²Oxygen Sensor Heater
²Engine Controller
²Brake Switch
²Natural Vacuum Leak Detection (NVLD)
²P/N Switch
²Trans Controls
Output FunctionalityÐPCM outputs are tested
for functionality in addition to testing for opens and
shorts. When the PCM provides a voltage to an out-
put component, it can verify that the command was
carried out by monitoring specific input signals for
expected changes. For example, when the PCM com-
mands the Idle Air Control (IAC) Motor to a specific
position under certain operating conditions, it expects
to see a specific (target) idle speed (RPM). If it does
not, it stores a DTC.
PCM outputs monitored for functionality include:
²Fuel Injectors
²Ignition Coils
²Torque Converter Clutch Solenoid
²Idle Air Control
²Purge Solenoid
²EGR Solenoid
²Radiator Fan Control
²Trans Controls
OXYGEN SENSOR (O2S) MONITOR
DESCRIPTIONÐEffective control of exhaust
emissions is achieved by an oxygen feedback system.
The most important element of the feedback system
is the O2S. The O2S is located in the exhaust path.
Once it reaches operating temperature 300É to 350ÉC
(572É to 662ÉF), the sensor generates a voltage that
is inversely proportional to the amount of oxygen in
the exhaust. When there is a large amount of oxygen
in the exhaust caused by a lean condition, misfire or
exhaust leak, the sensor produces a low voltage,
below 450 mV. When the oxygen content is lower,
caused by a rich condition, the sensor produces a
higher voltage, above 450mV.
The information obtained by the sensor is used to
calculate the fuel injector pulse width. The PCM is
programmed to maintain the optimum air/fuel ratio.
At this mixture ratio, the catalyst works best to
remove hydrocarbons (HC), carbon monoxide (CO)
and nitrous oxide (NOx) from the exhaust.
The O2S is also the main sensing element for the
EGR, Catalyst and Fuel Monitors, and purge.
The O2S may fail in any or all of the following
manners:
²Slow response rate (Big Slope)
²Reduced output voltage (Half Cycle)
²Heater Performance
Slow Response Rate (Big Slope)ÐResponse rate
is the time required for the sensor to switch from
lean to rich signal output once it is exposed to a
25 - 2 EMISSIONS CONTROLRS
EMISSIONS CONTROL (Continued)

OXYGEN SENSOR HEATER MONITOR (SBEC)
DESCRIPTIONÐIf there is an oxygen sensor
(O2S) DTC as well as a O2S heater DTC, the O2S
heater fault MUST be repaired first. After the O2S
fault is repaired, verify that the heater circuit is
operating correctly.
The voltage readings taken from the O2S are very
temperature sensitive. The readings are not accurate
below 300ÉC. Heating of the O2S is done to allow the
engine controller to shift to closed loop control as
soon as possible. The heating element used to heat
the O2S must be tested to ensure that it is heating
the sensor properly.
The heater element itself is not tested directly. The
sensor output is used to test the heater by isolating
the effect of the heater element on the O2S output
voltage from the other effects. The resistance is nor-
mally between 100 ohms and 4.5 megaohms. When
oxygen sensor temperature increases, the resistance
in the internal circuit decreases. The PCM sends a 5
volts biased signal through the oxygen sensors to
ground this monitoring circuit. As the temperature
increases, resistance decreases and the PCM detects
a lower voltage at the reference signal. Inversely, as
the temperature decreases, the resistance increases
and the PCM detects a higher voltage at the refer-
ence signal. The O2S circuit is monitored for a drop
in voltage.
OPERATIONÐThe Oxygen Sensor Heater Moni-
tor begins after the ignition has been turned OFF
and the O2 sensors have cooled. The PCM sends a 5
volt bias to the oxygen sensor every 1.6 seconds. The
PCM keeps it biased for 35 ms each time. As the sen-
sor cools down, the resistance increases and the PCM
reads the increase in voltage. Once voltage has
increased to a predetermined amount, higher than
when the test started, the oxygen sensor is cool
enough to test heater operation.
When the oxygen sensor is cool enough, the PCM
energizes the ASD relay. Voltage to the O2 sensor
begins to increase the temperature. As the sensor
temperature increases, the internal resistance
decreases. The PCM continues biasing the 5 volt sig-
nal to the sensor. Each time the signal is biased, the
PCM reads a voltage decrease. When the PCM
detects a voltage decrease of a predetermined value
for several biased pulses, the test passes.
The heater elements are tested each time the
engine is turned OFF if all the enabling conditions
are met. If the monitor fails, the PCM stores a
maturing fault and a Freeze Frame is entered. If two
consecutive tests fail, a DTC is stored. Because the
ignition is OFF, the MIL is illuminated at the begin-
ning of the next key cycle, after the 2nd failure.Enabling ConditionsÐThe following conditions
must be met for the PCM to run the oxygen sensor
heater test:
²Engine run time of at least 5.1 minutes
²Key OFF power down
²Battery voltage of at least 10 volts
²Sufficient Oxygen Sensor cool down
Pending ConditionsÐThere are not conditions or
situations that prompt conflict or suspension of test-
ing. The oxygen sensor heater test is not run pending
resolution of MIL illumination due to oxygen sensor
failure.
SuspendÐThere are no conditions which exist for
suspending the Heater Monitor.
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. A meltdown of the ceramic core can
cause a reduction of the exhaust passage. 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 strategy is based on the fact that as a cat-
alyst deteriorates, its oxygen storage capacity and its
efficiency are both reduced. By monitoring the oxy-
gen storage capacity of a catalyst, its efficiency 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 converter. The
PCM calculates the A/F mixture from the output of
the O2S. A low voltage indicates high oxygen content
(lean mixture). A high voltage indicates a low content
of oxygen (rich mixture).
When the upstream O2S detects a high oxygen
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.
25 - 4 EMISSIONS CONTROLRS
EMISSIONS CONTROL (Continued)

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 (check
engine lamp) will be illuminated.
Monitor OperationÐTo monitor catalyst effi-
ciency, the PCM expands the rich and lean switch
points of the heated oxygen sensor. With extended
switch points, the air/fuel mixture runs richer and
leaner to overburden the catalytic converter. Once
the test is started, the air/fuel mixture runs rich and
lean and the O2 switches are counted. A switch is
counted when an oxygen sensor signal goes from
below the lean threshold to above the rich threshold.
The number of Rear O2 sensor switches is divided by
the number of Front O2 sensor switches to determine
the switching ratio.
The test runs for 20 seconds. As catalyst efficiency
deteriorated over the life of the vehicle, the switch
rate at the downstream sensor approaches that of the
upstream sensor. If at any point during the test
period the switch ratio reaches a predetermined
value, a counter is incremented by one. The monitor
is enabled to run another test during that trip. When
the test fails three times, the counter increments to
three, a malfunction is entered, and a Freeze Frame
is stored. When the counter increments to three dur-
ing the next trip, the code is matured and the MIL is
illuminated. If the test passes the first, no further
testing is conducted during that trip.
The MIL is extinguished after three consecutive
good trips. The good trip criteria for the catalyst
monitor is more stringent than the failure criteria. In
order to pass the test and increment one good trip,
the downstream sensor switch rate must be less than
80% of the upstream rate (60% for manual transmis-
sions). The failure percentages are 90% and 70%
respectively.
Enabling ConditionsÐThe following conditions
must typically be met before the PCM runs the cat-
alyst monitor. Specific times for each parameter may
be different from engine to engine.
²Accumulated drive time
²Enable time
²Ambient air temperature
²Barometric pressure
²Catalyst warm-up counter
²Engine coolant temperature²Accumulated throttle position sensor
²Vehicle speed
²MAP
²RPM
²Engine in closed loop
²Fuel level
Pending ConditionsÐ
²Misfire DTC
²Front Oxygen Sensor Response
²Front Oxygen Sensor Heater Monitor
²Front Oxygen Sensor Electrical
²Rear Oxygen Sensor Rationality (middle check)
²Rear Oxygen Sensor Heater Monitor
²Rear Oxygen Sensor Electrical
²Fuel System Monitor
²All TPS faults
²All MAP faults
²All ECT sensor faults
²Purge flow solenoid functionality
²Purge flow solenoid electrical
²All PCM self test faults
²All CMP and CKP sensor faults
²All injector and ignition electrical faults
²Idle Air Control (IAC) motor functionality
²Vehicle Speed Sensor
²Brake switch
²Intake air temperature
ConflictÐThe catalyst monitor does not run if any
of the following are conditions are present:
²EGR Monitor in progress
²Fuel system rich intrusive test in progress
²EVAP Monitor in progress
²Time since start is less than 60 seconds
²Low fuel level
²Low ambient air temperature
²Ethanel content learn is taking place and the
ethenal used once flag is set
SuspendÐThe Task Manager does not mature a
catalyst fault if any of the following are present:
²Oxygen Sensor Monitor, Priority 1
²Upstream Oxygen Sensor Heater, Priority 1
²EGR Monitor, Priority 1
²EVAP Monitor, Priority 1
²Fuel System Monitor, Priority 2
²Misfire Monitor, Priority 2
NON-MONITORED CIRCUITS
The PCM does not monitor all circuits, systems
and conditions that could have malfunctions causing
driveability problems. However, problems with these
systems may cause the PCM to store diagnostic trou-
ble codes for other systems or components. For exam-
ple, a fuel pressure problem will not register a fault
directly, but could cause a rich/lean condition or mis-
fire. This could cause the PCM to store an oxygen
sensor or misfire diagnostic trouble code.
RSEMISSIONS CONTROL25-5
EMISSIONS CONTROL (Continued)

The major non-monitored circuits are listed below
along with examples of failures modes that do not
directly cause the PCM to set a DTC, but for a sys-
tem that is monitored.
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, fuel system, or mis-
fire diagnostic 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. The misfire will however,
increase the oxygen content in the exhaust, deceiving
the PCM in to thinking the fuel system is too lean.
Also see misfire detection. There are DTC's that can
detect misfire and Ionization shorts in the secondary
ignition circuit, refer to the Powertrain Diagnostic
manual for more information
CYLINDER COMPRESSION
The PCM cannot detect uneven, low, or high engine
cylinder compression. Low compression lowers O2
content in the exhaust. Leading to fuel system, oxy-
gen sensor, or misfire detection fault.
EXHAUST SYSTEM
The PCM cannot detect a plugged, restricted or
leaking exhaust system. It may set a EGR (if
equipped) or Fuel system or O2S fault.
FUEL INJECTOR MECHANICAL MALFUNCTIONS
The PCM cannot determine if a fuel injector is
clogged, the needle is sticking or if the wrong injector
is 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 AIR FLOW
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 PCMto 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,
including when diagnostics are performed.
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 - MONITORED SYSTEMS
There are new electronic circuit monitors that
check fuel, emission, engine and ignition perfor-
mance. These monitors use information from various
sensor circuits to indicate the overall operation of the
fuel, engine, ignition and emission systems and thus
the emissions performance of the vehicle.
The fuel, engine, ignition and emission systems
monitors do not indicate a specific component prob-
lem. They do indicate that there is an implied prob-
lem within one of the systems and that a specific
problem must be diagnosed.
If any of these monitors detect a problem affecting
vehicle emissions, the Malfunction Indicator (Check
Engine) Lamp will be illuminated. These monitors
generate Diagnostic Trouble Codes that can be dis-
played with the a scan tool.
The following is a list of the system monitors:
²EGR Monitor (if equipped)
²Misfire Monitor
²Fuel System Monitor
²Oxygen Sensor Monitor
²Oxygen Sensor Heater Monitor
²Catalyst Monitor
²Evaporative System Leak Detection Monitor (if
equipped)
Following is a description of each system monitor,
and its DTC.
Refer to the appropriate Powertrain Diagnos-
tics Procedures manual for diagnostic proce-
dures.
OXYGEN SENSOR (O2S) MONITOR
Effective control of exhaust emissions is achieved
by an oxygen feedback system. The most important
element of the feedback system is the O2S. The O2S
is located in the exhaust path. Once it reaches oper-
ating temperatures of 300É to 350ÉC (572É to 662ÉF),
the sensor generates a voltage that is inversely pro-
portional to the amount of oxygen in the exhaust.
25 - 6 EMISSIONS CONTROLRS
EMISSIONS CONTROL (Continued)

as well as allowing sufficient purge flow in the event
that the solenoid was to become inoperative.
The solenoid actuates the valve to unseal the can-
ister vent while the engine is running. It also will be
used to close the vent during the medium and large
leak tests and during the purge flow check. This sole-
noid requires initial 1.5 amps of current to pull the
valve open but after 100 ms. will be duty cycled down
to an average of about 150 mA for the remainder of
the drive cycle.
Another feature in the device is a diaphragm that
will open the seal in the NVLD with pressure in the
evaporative system. The device will9blow off9at
about 0.59H2O (0.12 KPA) pressure to permit the
venting of vapors during refueling. An added benefit
to this is that it will also allow the tank to9breathe9
during increasing temperatures, thus limiting the
pressure in the tank to this low level. This is benefi-
cial because the induced vacuum during a subse-
quent declining temperature will achieve the switch
closed (pass threshold) sooner than if the tank had to
decay from a built up pressure.
The device itself has 3 wires: Switch sense, sole-
noid driver and ground. It also includes a resistor to
protect the switch from a short to battery or a short
to ground. The NGC utilizes a high-side driver to
energize and duty-cycle the solenoid.
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.
OPERATION
SYSTEM
The Powertrain Control Module (PCM) monitors
many different circuits in the fuel injection, ignition,
emission and engine systems. If the PCM senses a
problem with a monitored circuit often enough to
indicate an actual problem, it stores a Diagnostic
Trouble Code (DTC) in the PCM's memory. If the
code applies to a non-emissions related component or
system, and the problem is repaired or ceases to
exist, the PCM cancels the code after 40 warmup
cycles. Diagnostic trouble codes that affect vehicle
emissions illuminate the Malfunction Indicator Lamp
(MIL). Refer to Malfunction Indicator Lamp in this
section.Certain criteria must be met before the PCM
stores a DTC in memory. The criteria may be a spe-
cific range of engine RPM, engine temperature,
and/or input voltage to the PCM.
The PCM might not store a DTC for a monitored
circuit even though a malfunction has occurred. This
may happen because one of the DTC criteria for the
circuit has not been met.For example, assume the
diagnostic trouble code criteria requires the PCM to
monitor the circuit only when the engine operates
between 750 and 2000 RPM. Suppose the sensor's
output circuit shorts to ground when engine operates
above 2400 RPM (resulting in 0 volt input to the
PCM). Because the condition happens at an engine
speed above the maximum threshold (2000 rpm), the
PCM will not store a DTC.
There are several operating conditions for which
the PCM monitors and sets DTC's. Refer to Moni-
tored Systems, Components, and Non-Monitored Cir-
cuits in this section.
NOTE: Various diagnostic procedures may actually
cause a diagnostic monitor to set a DTC. For
instance, pulling a spark plug wire to perform a
spark test may set the misfire code. When a repair
is completed and verified, use the scan tool to
erase all DTC's and extinguish the MIL.
Technicians can display stored DTC's. For obtain-
ing the DTC information, use the Data Link Connec-
tor with the scan tool (Fig. 1).
Fig. 1 Data Link Connector
RSEMISSIONS CONTROL25-9
EMISSIONS CONTROL (Continued)

CHIRP PREFERENCE - STANDARDPROCEDURE, HORN .................. 8N-24
CIRCUIT, DIAGNOSIS AND TESTING - AMBIENT TEMPERATURE SENSOR ......8M-12
CIRCUIT FUNCTIONS - DESCRIPTION . . 8W-01-6
CIRCUIT INFORMATION - DESCRIPTION . 8W-01-5
CIRCUIT RESISTANCE TEST - DIAGNOSIS AND TESTING, FEED ........8F-35
CIRCUIT TEST - DIAGNOSIS AND TESTING, CONTROL .................. 8F-33
CIRCUIT TEST - DIAGNOSIS AND TESTING, FEED ...................... 8F-36
CIRCUITS AND VALVES - OPERATION, HYDRAULIC .......................... 5-95
CIRCUITS, DESCRIPTION - NON- MONITORED ......................... 25-5
CLAMP - STANDARD PROCEDURE, HOSES .............................. 14-7
CLAMPS - DESCRIPTION, FUEL LINES/HOSES ........................ 14-7
CLAMPS - DESCRIPTION, HOSE ...........7-1
CLAMPS - OPERATION, HOSE .............7-2
CLASSIFICATION MODULE - DESCRIPTION, OCCUPANT .............8O-25
CLASSIFICATION MODULE - INSTALLATION, OCCUPANT ............8O-26
CLASSIFICATION MODULE - OPERATION, OCCUPANT ......................... 8O-25
CLASSIFICATION MODULE - REMOVAL, OCCUPANT ......................... 8O-26
CLEARANCE - STANDARD PROCEDURE, MEASURING CONNECTING ROD
BEARING ............................ 9-123
CLEARANCE USING PLASTIGAGE - STANDARD PROCEDURE, MEASURING
BEARING ........................ 9-12,9-86
CLOCKSPRING - DESCRIPTION .........8O-10
CLOCKSPRING - INSTALLATION .........8O-12
CLOCKSPRING - OPERATION ...........8O-11
CLOCKSPRING - REMOVAL ............8O-12
CLOCKSPRING CENTERING - STANDARD PROCEDURE ........................ 8O-11
CLUSTER - DESCRIPTION, INSTRUMENT . . . 8J-1
CLUSTER - OPERATION, INSTRUMENT .....8J-1
CLUSTER BEZEL - INSTALLATION ........23-65
CLUSTER BEZEL - REMOVAL ...........23-65
CLUSTER DIAGNOSIS - DIAGNOSIS AND TESTING ............................ 8J-3
CLUSTER ILLUMINATION LAMPS - INSTALLATION ....................... 8L-21
CLUSTER ILLUMINATION LAMPS - REMOVAL .......................... 8L-21
CLUSTER LENS - INSTALLATION ........8J-11
CLUSTER LENS - REMOVAL ............8J-11
CLUTCH AIR PRESSURE TESTS - DIAGNOSIS AND TESTING ........21-153,21-8
CLUTCH ASSEMBLY - ASSEMBLY, INPUT ....................... 21-246,21-95
CLUTCH ASSEMBLY - DISASSEMBLY, INPUT ....................... 21-237,21-86
CLUTCH BREAK-IN, STANDARD PROCEDURE - A/C ................... 24-15
CLUTCH COIL, DIAGNOSIS AND TESTING - A/C COMPRESSOR .................. 24-14
CLUTCH INSPECTION, STANDARD PROCEDURE ........................ 24-15
CLUTCH RELAY - DESCRIPTION, A/C COMPRESSOR ....................... 24-18
CLUTCH RELAY - INSTALLATION, A/C COMPRESSOR ....................... 24-19
CLUTCH RELAY - OPERATION, A/C COMPRESSOR ....................... 24-18
CLUTCH RELAY - REMOVAL, A/C COMPRESSOR ....................... 24-19
CLUTCH/COIL - DESCRIPTION, A/C COMPRESSOR ....................... 24-13
CLUTCH/COIL - OPERATION, A/C COMPRESSOR ....................... 24-13
CLUTCHES - DESCRIPTION, DRIVING . . . 21-219,
21-74
CLUTCHES - DESCRIPTION, HOLDING . . . 21-236,
21-86
CLUTCHES - OPERATION, DRIVING .....21-219,
21-74
CLUTCHES - OPERATION, HOLDING ....21-236,
21-86
COAT/CLEARCOAT FINISH - DESCRIPTION, BASE .................23-101CODE - DESCRIPTION, PAINT
..........23-101
CODE CHARTS - SPECIFICATIONS, COLOR ............................ 23-100
CODES - STANDARD PROCEDURE, OBTAINING DIAGNOSTIC TROUBLE ......8E-15
CODES, STANDARD PROCEDURE - ERASING TRANSMITTER ..............8M-12
CODES, STANDARD PROCEDURE - SETTING TRANSMITTER ..............8M-12
COIL - DESCRIPTION, IGNITION ..........8I-6
COIL - OPERATION, IGNITION ............8I-6
COIL, DIAGNOSIS AND TESTING - A/C COMPRESSOR CLUTCH ...............24-14
COLLAR - INSTALLATION, STRUCTURAL . . . 9-49
COLLAR - REMOVAL, STRUCTURAL .......9-49
COLOR CODE CHARTS - SPECIFICATIONS .................... 23-100
COLUMN - DESCRIPTION, STEERING .....19-10
COLUMN - DIAGNOSIS AND TESTING, STEERING .......................... 19-11
COLUMN COVER - INSTALLATION, LOWER STEERING ................... 23-74
COLUMN COVER - INSTALLATION, OVER STEERING .......................... 23-76
COLUMN COVER - REMOVAL, LOWER STEERING .......................... 23-74
COLUMN COVER - REMOVAL, OVER STEERING .......................... 23-76
COLUMN FASTENER TORQUE, SPECIFICATIONS ..................... 19-17
COMBUSTION PRESSURE LEAKAGE TEST - DIAGNOSIS AND TESTING,
CYLINDER ........................ 9-85,9-9
COMMUNICATION RECEIVE - PCM INPUT - OPERATION, DATA BUS ..............8E-14
COMMUNICATIONS INTERFACE (PCI) BUS, OPERATION - PROGRAMMABLE ....14-25
COMPASS CALIBRATION, STANDARD PROCEDURE ......................... 8M-4
COMPASS DEMAGNETIZING, STANDARD PROCEDURE ......................... 8M-5
COMPASS MINI-TRIP COMPUTER, DIAGNOSIS AND TESTING .............8M-10
COMPASS VARIATION ADJUSTMENT, STANDARD PROCEDURE ...............8M-5
COMPASS/MINI-TRIP COMPUTER - DESCRIPTION ....................... 8M-10
COMPASS/MINI-TRIP COMPUTER - OPERATION ........................ 8M-10
COMPRESSION PRESSURE TEST - DIAGNOSIS AND TESTING, CYLINDER . . 9-85,9-9
COMPRESSOR CLUTCH COIL, DIAGNOSIS AND TESTING - A/ C.........24-14
COMPRESSOR CLUTCH RELAY - DESCRIPTION, A/C ................... 24-18
COMPRESSOR CLUTCH RELAY - INSTALLATION, A/C ................... 24-19
COMPRESSOR CLUTCH RELAY - OPERATION, A/C ..................... 24-18
COMPRESSOR CLUTCH RELAY - REMOVAL, A/C ...................... 24-19
COMPRESSOR CLUTCH/COIL - DESCRIPTION, A/C ................... 24-13
COMPRESSOR CLUTCH/COIL - OPERATION, A/C ..................... 24-13
COMPRESSOR, DESCRIPTION - A/C ......24-72
COMPRESSOR, INSTALLATION - A/C .....24-74
COMPRESSOR MOUNTING BRACKET, 2.4L ENGINE - A/C ..............24-74,24-75
COMPRESSOR NOISE DIAGNOSIS, DIAGNOSIS AND TESTING - A/C .........24-72
COMPRESSOR, OPERATION - A/C ........24-72
COMPRESSOR, REMOVAL - A/C .........24-73
COMPUTER - DESCRIPTION, COMPASS/ MINI-TRIP ......................... 8M-10
COMPUTER - OPERATION, COMPASS/ MINI-TRIP ......................... 8M-10
COMPUTER, DIAGNOSIS AND TESTING - COMPASS MINI-TRIP .................8M-10
CONCENTRATION TESTING - DIAGNOSIS AND TESTING, COOLANT ...............7-19
CONDENSER - DESCRIPTION, A/C .......24-75
CONDENSER - OPERATION, A/C .........24-75
CONDITION CHECK, STANDARD PROCEDURE - FLUID LEVEL ......21-230,21-82
CONDITIONER, DESCRIPTION - HEATER AND AIR ............................ 24-1CONDITIONER, OPERATION - HEATER
AND AIR ............................ 24-4
CONNECT FITTING DISASSEMBLY/ ASSEMBLY - STANDARD PROCEDURE,
TRANSMISSION COOLER LINE QUICK .....7-38
CONNECTING ROD - DESCRIPTION, PISTON ........................ 9-119,9-44
CONNECTING ROD - INSTALLATION, PISTON ............................. 9-45
CONNECTING ROD - REMOVAL, PISTON . . . 9-44
CONNECTING ROD BEARING CLEARANCE - STANDARD
PROCEDURE, MEASURING .............9-123
CONNECTING ROD, FITTING .............9-46
CONNECTING RODS - STANDARD PROCEDURE, FITTING .................9-119
CONNECTOR - DESCRIPTION, DATA LINK . . 8E-6
CONNECTOR - INSTALLATION .......8W-01-11
CONNECTOR - OPERATION, DATA LINK ....8E-6
CONNECTOR - REMOVAL ...........8W-01-11
CONNECTOR, GROUND AND SPLICE INFORMATION - DESCRIPTION ........8W-01-7
CONNECTOR/GROUND/SPLICE LOCATION - DESCRIPTION ....................8W -91-1
CONSOLE - DESCRIPTION, OVERHEAD ....8M-2
CONSOLE - FOLD-IN-FLOOR - INSTALLATION, FLOOR ................23-89
CONSOLE - FOLD-IN-FLOOR - REMOVAL, FLOOR ............................. 23-89
CONSOLE - INSTALLATION, LOWER ......23-73
CONSOLE - REMOVAL, LOWER ..........23-73
CONSOLE BASE TRAY - INSTALLATION, FLOOR ............................. 23-89
CONSOLE BASE TRAY - REMOVAL, FLOOR ............................. 23-89
CONSOLE, DIAGNOSIS AND TESTING - OVERHEAD .......................... 8M-3
CONSOLE KEY LOCK TUMBLER - FOLD-IN-FLOOR - INSTALLATION,
FLOOR ............................. 23-90
CONSOLE KEY LOCK TUMBLER - FOLD-IN-FLOOR - REMOVAL, FLOOR .....23-90
CONSOLE LAMP - INSTALLATION, CENTER ............................ 8L-21
CONSOLE LAMP - REMOVAL, CENTER ....8L-21
CONSOLE LAMP SWITCH - INSTALLATION, CENTER ...............8L-21
CONSOLE LAMP SWITCH - REMOVAL, CENTER ............................ 8L-21
CONSOLE LID LATCH - FOLD-IN-FLOOR - INSTALLATION, FLOOR ................23-90
CONSOLE LID LATCH - FOLD-IN-FLOOR - REMOVAL, FLOOR .................... 23-90
CONSOLE, SPECIAL TOOLS - OVERHEAD . . 8M-7
CONTAINER - DESCRIPTION, COOLANT RECOVERY .......................... 7-20
CONTAINER - INSTALLATION, COOLANT RECOVERY .......................... 7-20
CONTAINER - OPERATION, COOLANT RECOVERY .......................... 7-20
CONTAINER - REMOVAL, COOLANT RECOVERY .......................... 7-20
CONTAMINATION - DIAGNOSIS AND TESTING, BRAKE FLUID ................5-33
CONTINUITY - STANDARD PROCEDURE, TESTING .........................8W -01-9
CONTROL (4 SPEED EATX ONLY) - OPERATION, INTERACTIVE SPEED ........8P-2
CONTROL ARM - DESCRIPTION, LOWER . . . 2-12
CONTROL ARM - INSPECTION, LOWER ....2-14
CONTROL ARM - INSTALLATION, LOWER . . 2-15
CONTROL ARM - OPERATION, LOWER .....2-12
CONTROL ARM - REMOVAL, LOWER ......2-12
CONTROL ARM (REAR BUSHING - HYDRO) - ASSEMBLY, LOWER ...........2-15
CONTROL ARM (REAR BUSHING - HYDRO) - DISASSEMBLY, LOWER ........2-13
CONTROL ARM (REAR BUSHING - STANDARD) - ASSEMBLY, LOWER ........2-14
CONTROL ARM (REAR BUSHING - STANDARD) - DISASSEMBLY, LOWER .....2-13
CONTROL CABLE - INSTALLATION, THROTTLE .......................... 14-40
CONTROL CABLE - REMOVAL, THROTTLE .......................... 14-40
CONTROL CALIBRATION, STANDARD PROCEDURE - A/C-HEATER .............24-19
RS INDEX7
Description Group-Page Description Group-Page Description Group-Page

DOOR WEATHERSTRIP - INSTALLATION,SLIDING ........................... 23-168
DOOR WEATHERSTRIP - REMOVAL, FRONT ............................ 23-168
DOOR WEATHERSTRIP - REMOVAL, SLIDING ........................... 23-168
DOSING PUMP - DESCRIPTION, FUEL . . . 24-117
DOSING PUMP - INSTALLATION, FUEL . . . 24-117
DOSING PUMP - OPERATION, FUEL .....24-117
DOSING PUMP - REMOVAL, FUEL ......24-117
DOWNSTREAM 1/2 - 2.4/3.3/3.8L - REMOVAL .......................... 14-38
DOWNSTREAM 2/1, 2.4/3.3/3.8L - INSTALLATION ....................... 14-39
D-PILLAR TRIM PANEL - INSTALLATION, LEFT .............................. 23-94
D-PILLAR TRIM PANEL - INSTALLATION, RIGHT ............................. 23-98
D-PILLAR TRIM PANEL - REMOVAL, LEFT .............................. 23-94
D-PILLAR TRIM PANEL - REMOVAL, RIGHT ............................. 23-97
DRAIN TUBE - INSTALLATION ..........23-172
DRAIN TUBE - REMOVAL .............23-172
DRAINCOCK - INSTALLATION, RADIATOR . . . 7-27
DRAINCOCK - REMOVAL, RADIATOR ......7-27
DRAINING - STANDARD PROCEDURE, COOLING SYSTEM .....................7-4
DRAINING FUEL TANK - STANDARD PROCEDURE ......................... 14-2
DRAW TEST, STANDARD PROCEDURE - IGNITION-OFF ....................... 8F-13
DRB III TSTATE DISPLAY TEST MODE,
OPERATION ......................... 25-10
DRIER - DESCRIPTION, RECEIVER .......24-92
DRIER - INSTALLATION, RECEIVER ......24-93
DRIER - OPERATION, RECEIVER .........24-92
DRIER - REMOVAL, RECEIVER ..........24-92
DRIVE - ASSEMBLY, FINAL .......21-224,21-78
DRIVE - DESCRIPTION, FINAL ....21-219,21-74
DRIVE - DESCRIPTION, FLEX ...........8N-55
DRIVE - DISASSEMBLY, FINAL ....21-220,21-75
DRIVE - INSTALLATION, FLEX ..........8N-56
DRIVE - OPERATION, FINAL ......21-220,21-75
DRIVE - OPERATION, FLEX .............8N-55
DRIVE - REMOVAL, FLEX ..............8N-55
DRIVE BELT - DIAGNOSIS AND TESTING, ACCESSORY ..........................7-7
DRIVE BELT TENSION, SPECIFICATIONS - ACCESSORY ..........................7-5
DRIVE BELTS - 2.4L - ADJUSTMENTS .....7-10
DRIVE BELTS - 2.4L - INSTALLATION .......7-9
DRIVE BELTS - 2.4L - REMOVAL ..........7-9
DRIVE BELTS - 3.3/3.8L - INSTALLATION . . . 7-12
DRIVE BELTS - 3.3/3.8L - REMOVAL ......7-11
DRIVE BELTS - CLEANING ...............7-8
DRIVE BELTS - INSPECTION ..............7-8
DRIVE UNIT - DESCRIPTION, LOWER ....8N-53
DRIVE UNIT - INSTALLATION, LOWER ....8N-54
DRIVE UNIT - OPERATION, LOWER ......8N-53
DRIVE UNIT - REMOVAL, LOWER .......8N-53
DRIVE UNIT TRACK & RACK - DESCRIPTION, LOWER ................8N-57
DRIVE UNIT TRACK & RACK - INSTALLATION, LOWER ...............8N-58
DRIVE UNIT TRACK & RACK - OPERATION, LOWER .................. 8N-57
DRIVE UNIT TRACK & RACK - REMOVAL, LOWER ................... 8N-57
DRIVELINE MODULE FLUIDS - DESCRIPTION, AWD REAR ...............0-6
DRIVER AIRBAG - DESCRIPTION ........8O-16
DRIVER AIRBAG - INSTALLATION .......8O-18
DRIVER AIRBAG - OPERATION ..........8O-16
DRIVER AIRBAG - REMOVAL ...........8O-17
DRIVER HEATED SEAT SWITCH, DIAGNOSIS AND TESTING ..............8G-9
DRIVER SEAT SWITCH, DIAGNOSIS AND TESTING ........................... 8N-34
DRIVING CLUTCHES - DESCRIPTION ....21-219,
21-74
DRIVING CLUTCHES - OPERATION . 21-219,21-74
DROP - STANDARD PROCEDURE, TESTING FOR A VOLTAGE ...........8W-01-10
DRUM - INSTALLATION .................5-32
DRUM - REMOVAL .................... 5-32
DRUM BRAKE - INSTALLATION, SUPPORT PLATE ...................... 5-61DRUM BRAKE - REMOVAL, SUPPORT
PLATE .............................. 5-61
DRUM BRAKE AUTOMATIC ADJUSTER - DIAGNOSIS AND TESTING ..............5-14
DRUM BRAKE SHOE LINING - INSPECTION, REAR .................... 5-22
DRUM BRAKE SHOES - ADJUSTMENT, REAR ............................... 5-23
DRUM BRAKE SHOES - INSTALLATION, REAR ............................... 5-22
DRUM BRAKE SHOES - REMOVAL, REAR . . 5-19
DRUM BRAKES (REAR) - DESCRIPTION ....5-13
DUAL ZONE, DESCRIPTION - MANUAL .....24-2
DUAL ZONE, OPERATION - MANUAL ......24-5
DUCT - INSTALLATION, DEFROSTER .....24-50
DUCT - INSTALLATION, DISTRIBUTION . . . 24-57
DUCT - INSTALLATION, REAR FLOOR HEAT .............................. 24-63
DUCT - REMOVAL, DEFROSTER .........24-49
DUCT - REMOVAL, DISTRIBUTION .......24-57
DUCT - REMOVAL, REAR FLOOR HEAT . . . 24-63
DUCTS - INSTALLATION, FLOOR DISTRIBUTION ....................... 24-50
DUCTS - INSTALLATION, INSTRUMENT PANEL ............................. 24-55
DUCTS - INSTALLATION, INSTRUMENT PANEL DEMISTER .................... 24-54
DUCTS - REMOVAL, FLOOR DISTRIBUTION ....................... 24-50
DUCTS - REMOVAL, INSTRUMENT PANEL .............................. 24-55
DUCTS - REMOVAL, INSTRUMENT PANEL DEMISTER .................... 24-54
DUTY, CARGO - INSTALLATION, AWD, HEAVY.............................. 2-36
DUTY, CARGO - REMOVAL, AWD, HEAVY . . . 2-36
DVD PLAYER - DESCRIPTION ...........8A-12
DVD PLAYER - INSTALLATION ..........8A-12
DVD PLAYER - REMOVAL ..............8A-12
ELECTRIC BACKLIGHT (EBL) SYSTEM, DIAGNOSIS AND TESTING ..............8G-2
ELECTROLYTE LEVEL, STANDARD PROCEDURE - CHECKING BATTERY ......8F-14
ELECTRONIC VARIABLE BRAKE PROPORTIONING - DESCRIPTION ........5-88
ELECTRONIC VARIABLE BRAKE PROPORTIONING - OPERATION ..........5-89
ELECTRONIC VEHICLE INFO CENTER - DESCRIPTION ........................ 8M-7
ELECTRONIC VEHICLE INFO CENTER - OPERATION ......................... 8M-7
ELECTRONIC VEHICLE INFORMATION CENTER, DIAGNOSIS AND TESTING ......8M-8
ELECTRONIC VEHICLE INFORMATION CENTER PROGRAMMING, STANDARD
PROCEDURE ......................... 8M-8
ELECTROSTATIC DISCHARGE (ESD) SENSITIVE DEVICES - STANDARD
PROCEDURE ......................8W -01-8
ELEMENT - INSTALLATION, AIR CLEANER ....................... 9-101,9-24
ELEMENT - REMOVAL, AIR CLEANER . 9-101,9-24
ELEMENTS - DESCRIPTION, HEATED SEAT .............................. 8G-11
ELEMENTS - OPERATION, HEATED SEAT . . 8G-11
ELEMENTS, DIAGNOSIS AND TESTING - HEATED SEAT ....................... 8G-11
EMISSION CONTROL INFORMATION LABEL, DESCRIPTION - VEHICLE .........25-1
END CAP - INSTALLATION, INSTRUMENT PANEL RIGHT ....................... 23-72
END CAP - REMOVAL, INSTRUMENT PANEL RIGHT ....................... 23-72
END CLEANING AND LUBRICATION - STANDARD PROCEDURE, CABLE .........5-65
END PLAY - STANDARD PROCEDURE, CRANKSHAFT ........................ 9-37
END PLAY - STANDARD PROCEDURE, MEASURING CAMSHAFT ................9-29
END PLAY - STANDARD PROCEDURE, MEASURING CRANKSHAFT .............9-128
ENGAGE ACTUATOR - DESCRIPTION ......8N-9
ENGAGE ACTUATOR - INSTALLATION .....8N-10
ENGAGE ACTUATOR - OPERATION ........8N-9
ENGAGE ACTUATOR - REMOVAL .........8N-9
ENGINE - A/C COMPRESSOR MOUNTING BRACKET, 2.4L ................. 24-74,24-75
ENGINE - CLEANING ................... 7-18ENGINE - DESCRIPTION, 2.4L/3.3L/3.8L . . . 19-52
ENGINE - DESCRIPTION, FUEL
REQUIREMENTS - DIESEL ...............0-6
ENGINE - INSPECTION .................7-18
ENGINE - INSTALLATION, 2.4L .....19-47,19-50,
19-51,19-53
ENGINE - INSTALLATION, 3.3L/3.8L . 19-48,19-50, 19-52,19-53
ENGINE - REMOVAL, 2.4L . . . 19-46,19-49,19-51, 19-52
ENGINE - REMOVAL, 3.3L/3.8L ....19-46,19-49,
19-51,19-52
ENGINE - SPECIFICATIONS, 2.4L .........9-16
ENGINE 2.4L - DESCRIPTION .............9-3
ENGINE 3.3/3.8L - DESCRIPTION .........9-78
ENGINE ASSEMBLY - INSTALLATION . . 9-14,9-91
ENGINE ASSEMBLY - REMOVAL ......9-12,9-88
ENGINE BLOCK - CLEANING ........9-115,9-37
ENGINE BLOCK - DESCRIPTION .....9-115,9-36
ENGINE BLOCK - INSPECTION ......9-115,9-37
ENGINE BLOCK HEATER - DESCRIPTION . . . 7-20
ENGINE BLOCK HEATER - INSTALLATION . . . 7-21
ENGINE BLOCK HEATER - OPERATION .....7-20
ENGINE BLOCK HEATER - REMOVAL ......7-21
ENGINE BLOCK HEATER TESTING - DIAGNOSIS AND TESTING ..............7-21
ENGINE COOLANT - DESCRIPTION ........7-19
ENGINE COOLANT - DESCRIPTION .........0-3
ENGINE COOLANT TEMPERATURE SENSOR - 2.4L - DESCRIPTION ..........7-21
ENGINE COOLANT TEMPERATURE SENSOR - 2.4L - INSTALLATION ..........7-21
ENGINE COOLANT TEMPERATURE SENSOR - 2.4L - REMOVAL .............7-21
ENGINE COOLANT TEMPERATURE SENSOR - 3.3/3.8L - DESCRIPTION .......7-21
ENGINE COOLANT TEMPERATURE SENSOR - 3.3/3.8L - INSTALLATION .......7-23
ENGINE COOLANT TEMPERATURE SENSOR - 3.3/3.8L - REMOVAL ..........7-21
ENGINE COOLANT THERMOSTAT - 2.4L - INSTALLATION ........................ 7-24
ENGINE COOLANT THERMOSTAT - 2.4L - REMOVAL ........................... 7-24
ENGINE COOLANT THERMOSTAT - 3.3/3.8L - INSTALLATION ...............7-25
ENGINE COOLANT THERMOSTAT - 3.3/3.8L - REMOVAL ................... 7-24
ENGINE COOLANT THERMOSTAT - DESCRIPTION ........................ 7-23
ENGINE COOLANT THERMOSTAT - DIAGNOSIS AND TESTING ..............7-23
ENGINE COOLANT THERMOSTAT - OPERATION .......................... 7-23
ENGINE COOLING SYSTEM - DIAGNOSIS AND TESTING ........................ 7-14
ENGINE COOLING SYSTEM REQUIREMENTS, DESCRIPTION ..........24-1
ENGINE COOLING SYSTEM, WARNING ....24-65
ENGINE CORE AND OIL GALLERY PLUGS - STANDARD PROCEDURE ..........9-10,9-88
ENGINE DIAGNOSIS - INTRODUCTION - DIAGNOSIS AND TESTING ...........9-3,9-78
ENGINE DIAGNOSIS - MECHANICAL - DIAGNOSIS AND TESTING ...........9-6,9-82
ENGINE DIAGNOSIS - PERFORMANCE - DIAGNOSIS AND TESTING ...........9-4,9-80
ENGINE GASKET SURFACE PREPARATION - STANDARD
PROCEDURE ..................... 9-11,9-87
ENGINE MOUNTING - DESCRIPTION . 9-134,9-50
ENGINE OIL - DESCRIPTION, FLEXIBLE FUEL ................................0-3
ENGINE OIL - DIESEL ENGINES - DESCRIPTION .........................0-6
ENGINE OIL AND FILTER CHANGE - STANDARD PROCEDURE ...........9-139,9-54
ENGINE OIL AND LUBRICANTS - DESCRIPTION .........................0-1
ENGINE OIL LEAK INSPECTION - DIAGNOSIS AND TESTING ...........9-8,9-84
ENGINE OIL LEVEL CHECK - STANDARD PROCEDURE ........................ 9-140
ENGINE OIL LEVEL CHECK, STANDARD PROCEDURE ......................... 9-54
ENGINE OIL PRESSURE - DIAGNOSIS AND TESTING ....................... 9-138
RS INDEX11
Description Group-Page Description Group-Page Description Group-Page

HYDRAULIC CIRCUITS AND VALVES -OPERATION .......................... 5-95
HYDRAULIC LASH ADJUSTER NOISE DIAGNOSIS - DIAGNOSIS AND
TESTING ............................ 9-34
HYDRAULIC LASH ADJUSTERS - INSTALLATION ........................ 9-35
HYDRAULIC LASH ADJUSTERS - REMOVAL ........................... 9-35
HYDRAULIC LIFTERS - DIAGNOSIS AND TESTING ........................... 9-116
HYDRAULIC LIFTERS (CAM IN BLOCK) - DESCRIPTION ....................... 9-116
HYDRAULIC LIFTERS (CAM IN BLOCK) - INSTALLATION ....................... 9-117
HYDRAULIC LIFTERS (CAM IN BLOCK) - REMOVAL .......................... 9-117
HYDRAULIC PRESSURE TESTS - DIAGNOSIS AND TESTING ........21-150,21-6
HYDRAULIC SCHEMATICS, SCHEMATICS AND DIAGRAMS - 4XTE TRANSAXLE ....21-199,
21-54
HYDROSTATIC LOCKED ENGINE, STANDARD PROCEDURE ............9-10,9-87
ICU - ASSEMBLY ..................... 5-106
ICU - DISASSEMBLY ..................5-105
ICU (INTEGRATED CONTROL UNIT) - DESCRIPTION ....................... 5-102
ICU (INTEGRATED CONTROL UNIT) - OPERATION ......................... 5-102
IDENTIFICATION - DESCRIPTION, VEHICLE ............................ 23-1
IDENTIFICATION AND INFORMATION - DESCRIPTION, SECTION ..............8W-01-6
IDLE AIR CONTROL MOTOR - DESCRIPTION ....................... 14-33
IDLE AIR CONTROL MOTOR - INSTALLATION ....................... 14-33
IDLE AIR CONTROL MOTOR - OPERATION ......................... 14-33
IDLE AIR CONTROL MOTOR - REMOVAL . . 14-33
IGNITION COIL - DESCRIPTION ...........8I-6
IGNITION COIL - OPERATION .............8I-6
IGNITION SENSE - PCM INPUT - OPERATION ......................... 8E-14
IGNITION SWITCH - INSTALLATION ......19-19
IGNITION SWITCH - REMOVAL ..........19-17
IGNITION SYSTEM - DESCRIPTION ........8I-1
IGNITION SYSTEM - OPERATION ..........8I-1
IGNITION-OFF DRAW TEST, STANDARD PROCEDURE ........................ 8F-13
ILLUMINATION LAMPS - INSTALLATION, CLUSTER ........................... 8L-21
ILLUMINATION LAMPS - REMOVAL, CLUSTER ........................... 8L-21
IMPACT SENSOR - DESCRIPTION .......8O-18
IMPACT SENSOR - INSTALLATION .......8O-21
IMPACT SENSOR - REMOVAL ...........8O-19
INBOARD - 50/50 BENCH - INSTALLATION, SEAT BELT BUCKLE -
SECOND ROW ....................... 8O-38
INBOARD - 50/50 BENCH - REMOVAL, SEAT BELT BUCKLE - SECOND ROW .....8O-37
INBOARD - INSTALLATION, SEAT BELT BUCKLE - FRONT .................... 8O-35
INBOARD - QUAD BUCKET - INSTALLATION, SEAT BELT BUCKLE -
FIRST ROW ......................... 8O-36
INBOARD - QUAD BUCKET - REMOVAL, SEAT BELT BUCKLE - FIRST ROW .......8O-35
INBOARD - REMOVAL, SEAT BELT BUCKLE - FRONT .................... 8O-35
INDICATOR - DESCRIPTION, PASSENGER AIRBAG DISABLED ................... 8O-33
INDICATOR - INSTALLATION, PASSENGER AIRBAG DISABLED .........8O-34
INDICATOR - OPERATION, PASSENGER AIRBAG DISABLED ................... 8O-33
INDICATOR - REMOVAL, PASSENGER AIRBAG DISABLED ................... 8O-34
INDICATOR LAMP - DESCRIPTION, VTSS/SKIS .......................... 8Q-8
INDICATOR LAMP - OPERATION, VTSS/SKIS .......................... 8Q-8
INDICATORS - DIAGNOSIS AND TESTING, TREAD WEAR ...............22-16
INFLATABLE KNEE - INSTALLATION, BLOCKER ........................... 23-75INFLATABLE KNEE - REMOVAL,
BLOCKER ........................... 23-75
INFLATION PRESSURES - STANDARD PROCEDURE, TIRE ................... 22-16
INFO CENTER - DESCRIPTION, ELECTRONIC VEHICLE .................8M-7
INFO CENTER - OPERATION, ELECTRONIC VEHICLE .................8M-7
INFRARED TEMPERATURE SENSOR - DESCRIPTION ....................... 24-28
INFRARED TEMPERATURE SENSOR - OPERATION ......................... 24-28
INITIAL OPERATION - STANDARD PROCEDURE, POWER STEERING
PUMP ............................. 19-37
INJECTION SYSTEM - OPERATION .......14-22
INJECTOR - DESCRIPTION, FUEL ........14-30
INJECTOR - OPERATION, FUEL ..........14-31
INLET AIR TEMPERATURE SENSOR - DESCRIPTION ....................... 14-34
INLET FILTER - INSTALLATION ..........14-17
INLET FILTER - REMOVAL ..............14-17
INLET HOSE - INSTALLATION, HEATER ....24-87
INLET HOSE - REMOVAL, HEATER .......24-86
INLET TUBE - 2.4L - DESCRIPTION, WATER PUMP ........................ 7-36
INLET TUBE - 2.4L - INSTALLATION, WATER PUMP ........................ 7-36
INLET TUBE - 2.4L - REMOVAL, WATER PUMP .............................. 7-36
INLET TUBE - 3.3/3.8L - INSTALLATION, WATER PUMP ......................... 7-37
INLET TUBE - 3.3/3.8L - REMOVAL, WATER PUMP ........................ 7-37
INNER - INSTALLATION, CV BOOT .........3-7
INNER - REMOVAL, CV BOOT .............3-6
INNER BELT MOLDING - INSTALLATION, FRONT DOOR ...................... 23-168
INNER BELT MOLDING - REMOVAL, FRONT DOOR ...................... 23-168
INPUT - DESCRIPTION, SPEED SENSOR . 21-120, 21-271
INPUT - INSTALLATION, SPEED SENSOR ..................... 21-121,21-272
INPUT - OPERATION, DATA BUS COMMUNICATION RECEIVE - PCM .......8E-14
INPUT - OPERATION, IGNITION SENSE - PCM............................... 8E-14
INPUT - OPERATION, SENSOR RETURN - PCM............................... 8E-14
INPUT - OPERATION, SPEED SENSOR . . . 21-120, 21-271
INPUT - REMOVAL, SPEED SENSOR ....21-121,
21-272
INPUT CLUTCH ASSEMBLY - ASSEMBLY . 21-246, 21-95
INPUT CLUTCH ASSEMBLY - DISASSEMBLY ................. 21-237,21-86
INSERT - FOLD-IN-FLOOR - INSTALLATION, REAR FLOOR TUB
CARPETS ........................... 23-96
INSERT - FOLD-IN-FLOOR - INSTALLATION, SECOND ROW FLOOR
TUB CARPET ........................ 23-98
INSERT - FOLD-IN-FLOOR - REMOVAL, REAR FLOOR TUB CARPETS ............23-95
INSERT - FOLD-IN-FLOOR - REMOVAL, SECOND ROW FLOOR TUB CARPET ......23-98
INSTRUMENT CLUSTER - DESCRIPTION . . . 8J-1
INSTRUMENT CLUSTER - OPERATION .....8J-1
INSTRUMENT PANEL - INSTALLATION, LOWER ............................ 23-73
INSTRUMENT PANEL - REMOVAL, LOWER ............................ 23-73
INSTRUMENT PANEL ANTENNA CABLE - INSTALLATION ....................... 8A-12
INSTRUMENT PANEL ANTENNA CABLE - REMOVAL .......................... 8A-12
INSTRUMENT PANEL ASSEMBLY - INSTALLATION ....................... 23-70
INSTRUMENT PANEL ASSEMBLY - REMOVAL .......................... 23-67
INSTRUMENT PANEL CENTER BEZEL - INSTALLATION ....................... 23-72
INSTRUMENT PANEL CENTER BEZEL - REMOVAL .......................... 23-71
INSTRUMENT PANEL DEMISTER DUCTS - INSTALLATION ..................... 24-54INSTRUMENT PANEL DEMISTER DUCTS
- REMOVAL ......................... 24-54
INSTRUMENT PANEL DUCTS - INSTALLATION ....................... 24-55
INSTRUMENT PANEL DUCTS - REMOVAL . 24-55
INSTRUMENT PANEL OUTLETS, INSTALLATION ....................... 24-45
INSTRUMENT PANEL OUTLETS, REMOVAL .......................... 24-45
INSTRUMENT PANEL RIGHT END CAP - INSTALLATION ....................... 23-72
INSTRUMENT PANEL RIGHT END CAP - REMOVAL .......................... 23-72
INSTRUMENT PANEL TOP COVER - INSTALLATION ....................... 23-72
INSTRUMENT PANEL TOP COVER - REMOVAL .......................... 23-72
INSTRUMENT PANEL TOP PAD ASSEMBLY - INSTALLATION ............23-77
INSTRUMENT PANEL TOP PAD ASSEMBLY - REMOVAL ................23-77
INTAKE MANIFOLD - DESCRIPTION . . 9-147,9-60
INTAKE MANIFOLD - INSTALLATION, LOWER ............................ 9-151
INTAKE MANIFOLD - INSTALLATION, UPPER ............................. 9-149
INTAKE MANIFOLD - LOWER - CLEANING .......................... 9-151
INTAKE MANIFOLD - LOWER - INSPECTION .................... 9-151,9-62
INTAKE MANIFOLD - LOWER - INSTALLATION ........................ 9-62
INTAKE MANIFOLD - LOWER - REMOVAL ....9-62
INTAKE MANIFOLD - REMOVAL, LOWER . . 9-150
INTAKE MANIFOLD - REMOVAL, UPPER . . . 9-148
INTAKE MANIFOLD - UPPER - INSPECTION ......................... 9-61
INTAKE MANIFOLD - UPPER - INSTALLATION ........................ 9-61
INTAKE MANIFOLD - UPPER - REMOVAL . . . 9-60
INTAKE MANIFOLD LEAKS - DIAGNOSIS AND TESTING ................... 9-147,9-60
INTAKE MANIFOLD VACUUM PORT REPAIR - STANDARD PROCEDURE .......9-148
INTAKE PIPE - INSTALLATION, AIR ......24-115
INTAKE PIPE - REMOVAL, AIR .........24-115
INTAKE/EXHAUST VALVES & SEATS - CLEANING ...................... 9-108,9-33
INTAKE/EXHAUST VALVES & SEATS - DESCRIPTION ................... 9-107,9-33
INTAKE/EXHAUST VALVES & SEATS - INSPECTION ........................ 9-108
INTAKE/EXHAUST VALVES & SEATS - INSTALLATION ....................... 9-109
INTAKE/EXHAUST VALVES & SEATS - OPERATION ......................... 9-107
INTAKE/EXHAUST VALVES & SEATS - REMOVAL .......................... 9-108
INTEGRAL ANTENNA - EXPORT - DESCRIPTION, QUARTER GLASS ........8A-13
INTEGRAL ANTENNA - EXPORT - OPERATION, QUARTER GLASS ..........8A-13
INTEGRAL ANTENNA, EXPORT - QUARTER GLASS .................... 8A-13
INTEGRATED POWER MODULE - DESCRIPTION .....................8W -97-1
INTEGRATED POWER MODULE - INSTALLATION ....................8W -97-2
INTEGRATED POWER MODULE - OPERATION .......................8W -97-2
INTEGRATED POWER MODULE - REMOVAL ........................8W -97-2
INTERACTIVE SPEED CONTROL (4 SPEED EATX ONLY) - OPERATION ........8P-2
INTERFACE (PCI) BUS, OPERATION - PROGRAMMABLE COMMUNICATIONS ....14-25
INTERIOR LAMPS, SPECIFICATIONS ......8L-20
INTERLOCK SOLENOID - DESCRIPTION, SHIFT ....................... 21-113,21-264
INTERLOCK SOLENOID - DIAGNOSIS AND TESTING, BRAKE/TRANSMISSION
SHIFT ....................... 21-115,21-266
INTERLOCK SOLENOID - INSTALLATION, SHIFT ....................... 21-116,21-267
INTERLOCK SOLENOID - OPERATION, SHIFT ....................... 21-114,21-265
INTERLOCK SOLENOID - REMOVAL, SHIFT ....................... 21-115,21-266
RS INDEX17
Description Group-Page Description Group-Page Description Group-Page