instrument panel DODGE NEON 2000 Service Repair Manual

OPERATION
The combination coolant temperature sensor has
two elements. One element supplies coolant temper-
ature signal to the PCM. The other element supplies
coolant temperature signal to the instrument panel
gauge cluster. The PCM determines engine coolant
temperature from the coolant temperature sensor.
As coolant temperature varies the coolant temper-
ature sensors resistance changes resulting in a differ-
ent input voltage to the PCM and the instrument
panel gauge cluster.When the engine is cold, the PCM will provide
slightly richer air- fuel mixtures and higher idle
speeds until normal operating temperatures are
reached.
The PCM has a dual temperature range program
for better sensor accuracy at cold temperatures. At
key-ON the PCM sends a regulated five volt signal
through a 10,000 ohm resistor to the sensor. When
the sensed voltage reaches approximately 1.25 volts
the PCM turns on the transistor. The transistor con-
nects a 1,000 ohm resistor in parallel with the 10,000
ohm resistor. With this drop in resistance the PCM
recognizes an increase in voltage on the input circuit.
FUEL LEVEL SENSORÐPCM INPUT
DESCRIPTION
The fuel gauge level sending unit is attached to the
fuel pump module.
OPERATION
The fuel level sensor (fuel gauge sending unit)
sends a signal to the PCM to indicate fuel level. The
purpose of this feature is to prevent a false setting of
misfire and fuel system monitor trouble codes if the
fuel level is less than approximately 15 percent of its
rated capacity. It is also used to send a signal for fuel
gauge operation via the PCI bus circuits.
Fig. 9 Timing Reference Notches
1 ± MACHINED NOTCHES
2 ± CRANKSHAFT POSITION SENSOR
Fig. 10 Engine Coolant Temperature SensorÐSOHC
1 ± ENGINE COOLANT TEMPERATURE SENSOR
2 ± CAMSHAFT POSITION SENSOR
PLFUEL SYSTEM 14 - 31
DESCRIPTION AND OPERATION (Continued)

Like all Hall-effect sensors, the electronics of the
sensor needs a power source. This power source is
provided by the PCM. It is the same 8 volt power
supply that is used by the CKP and CMP sensors.
The vehicle speed sensor generates 8 pulses per
sensor revolution. This signal, in conjunction with a
closed throttle signal from the throttle position sen-
sor, indicates a closed throttle deceleration to the
PCM. Under deceleration conditions, the PCM
adjusts the Idle Air Control (IAC) motor to maintain
a desired MAP value.
When the vehicle is stopped at idle, a closed throt-
tle signal is received by the PCM (but a speed sensor
signal is not received). Under idle conditions, the
PCM adjusts the IAC motor to maintain a desired
engine speed.
AIR CONDITIONING CLUTCH RELAYÐPCM
OUTPUT
DESCRIPTION
The air conditioning clutch relay is located in the
PDC. The inside top of the PDC cover has a label
showing relay and fuse location.
OPERATION
The PCM controls the air conditioning clutch relay
ground circuit. The A/C clutch relay coil side contains
a 10 amp fuse between the buss bar in the Power
Distribution Center (PDC) and the relay. The power
side of this relay is fused with a 40 amp fuse. When
the PCM receives an air conditioning input, it
grounds the A/C compressor clutch relay and the
radiator fan relay.
When the PCM senses low idle speeds or wide open
throttle through the throttle position sensor, it
removes the ground for the A/C compressor clutch
relay. When the relay de-energizes, the contacts open
preventing air conditioning clutch engagement. Also,
if the PCM senses a part throttle launch condition, it
disables the A/C compressor clutch for several sec-
onds.
AUTOMATIC SHUTDOWN RELAYÐPCM
OUTPUT
DESCRIPTION
The ASD relay is located in the PDC. The inside
top of the PDC cover has a label showing relay and
fuse location.
OPERATION
The automatic shutdown (ASD) relay supplies bat-
tery voltage to the fuel injectors, electronic ignition
coil and the heating elements in the oxygen sensors
generator field and PCM sense circuit.A buss bar in the power distribution center (PDC)
supplies voltage to the solenoid side and contact side
of the relay. The ASD relay power circuit contains a
fuse between the buss bar in the PDC and the relay.
The fuse also protects the power circuit for the fuel
pump relay and pump. The fuse is located in the
PDC. Refer to the Wiring Diagrams for circuit infor-
mation.
The PCM controls the relay by switching the
ground path for the solenoid side of the relay on and
off. The PCM turns the ground path off when the
ignition switch is in the Off position unless the 02
Heater Monitor test is being run. When the ignition
switch is in the On or Crank position, the PCM mon-
itors the crankshaft position sensor and camshaft
position sensor signals to determine engine speed
and ignition timing (coil dwell). If the PCM does not
receive the crankshaft position sensor and camshaft
position sensor signals when the ignition switch is in
the Run position, it will de-energize the ASD relay.
CHARGING SYSTEM INDICATOR LAMPÐPCM
OUTPUT
OPERATION
The PCM turns the instrument panel Charging
System Lamp on. Refer to the Charging system sec-
tion information.
FUEL PUMP RELAYÐPCM OUTPUT
DESCRIPTION
The fuel pump relay is located in the PDC. The
inside top of the PDC cover has a label showing relay
and fuse location.
OPERATION
The fuel pump relay supplies battery voltage to the
fuel pump. A buss bar in the Power Distribution Cen-
ter (PDC) supplies voltage to the solenoid side and
contact side of the relay. The fuel pump relay power
circuit contains a fuse between the buss bar in the
PDC and the relay. The fuse also protects the power
circuit for the Automatic Shutdown (ASD) relay. The
fuse is located in the PDC. Refer to the Wiring Dia-
grams for circuit information.
The PCM controls the fuel pump relay by switch-
ing the ground path for the solenoid side of the relay
on and off. The PCM turns the ground path off when
the ignition switch is in the Off position. When the
ignition switch is in the On position, the PCM ener-
gizes the fuel pump. If the crankshaft position sensor
does not detect engine rotation, the PCM de-ener-
gizes the relay after approximately one second.
14 - 38 FUEL SYSTEMPL
DESCRIPTION AND OPERATION (Continued)

DATA LINK CONNECTOR
DESCRIPTION
The data link connector is located inside the vehi-
cle, under the instrument panel, left of the steering
column (Fig. 25).
OPERATION
The data link connector (diagnostic connector)
links the DRB scan tool with the powertrain control
module (PCM). Refer to On-Board Diagnostics in the
General Diagnosis section of this group.
FUEL INJECTORSÐPCM OUTPUT
DESCRIPTION
OPERATION
The 2.0L engine uses electrically operated top feed
fuel injectors (Fig. 26). The Automatic Shutdown
(ASD) relay supplies battery voltage to the fuel injec-
tors. The PCM controls the ground path for each
injector in sequence. By switching the ground paths
on and off, the PCM fine-tunes injector pulse width.
Injector pulse width refers to the amount of time an
injector operates.
The PCM determines injector synchronization from
the camshaft position sensor and crankshaft position
sensor inputs. The PCM grounds the ASD and fuel
pump relays after receiving the camshaft position
sensor and crankshaft position sensor inputs.
The PCM energizes the injectors in a sequential
order during all engine operating conditions except
start-up. For the first injector pulse width during
start-up, all injectors are energized at the same time.
Once the PCM determines crankshaft position, it
begins energizing the injectors in sequence.
IGNITION COILÐPCM OUTPUT
DESCRIPTION
The coil assembly consists of 2 coils molded
together. The coil assembly is mounted over the valve
cover (Fig. 27).
OPERATION
High tension leads route to each cylinder from the
coil. The coil fires two spark plugs every power
Fig. 24 Idle Air Control MotorÐTypical
Fig. 25 Data Link Connector
1 ± DATA LINK CONNECTOR
Fig. 26 Fuel Injector
1 ± FUEL INJECTOR
2 ± NOZZLE
3 ± TOP (FUEL ENTRY)
14 - 40 FUEL SYSTEMPL
DESCRIPTION AND OPERATION (Continued)

stroke. One plug is the cylinder under compression,
the other cylinder fires on the exhaust stroke. Coil
number one fires cylinders 1 and 4. Coil number two
fires cylinders 2 and 3. The PCM determines which
of the coils to charge and fire at the correct time.
The Auto Shutdown (ASD) relay provides battery
voltage to the ignition coil. The PCM provides a
ground contact (circuit) for energizing the coil. When
the PCM breaks the contact, the energy in the coil
primary transfers to the secondary causing the
spark. The PCM will de-energize the ASD relay if it
does not receive the crankshaft position sensor and
camshaft position sensor inputs. Refer to Auto Shut-
down (ASD) RelayÐPCM Output in this section for
relay operation.
Base timing is non-adjustable, but is set from the
factory at approximately 10ÉBTDC when the engine
is warm and idling.
There is an adaptive dwell strategy that runs dwell
from 4 to 6 msec when rpm is below 3,000 and bat-
tery voltage is 12-14 volts. During cranking, dwell
can be as much as 200 msec. The adaptive dwell is
driven by the sensed current flow through the injec-
tor drivers. Current flow is limited to 8 amps.
The low resistance of the primary coils can allow
current flow in excess of 15 amps. The PCM has a
current sensing device in the coil output circuit. As
dwell time starts, the PCM allows current to flow.
When the sensing device registers 8 amps, the PCM
begins to regulate current flow to maintain and not
exceed 8 amps through the remainder of the dwell
time. This prevents the PCM from being damaged by
excess current flow.
MALFUNCTION INDICATOR (CHECK ENGINE)
LAMPÐPCM OUTPUT
OPERATION
The PCM supplies the malfunction indicator (check
engine) lamp on/off signal to the instrument panel
through the PCI Bus. The PCI Bus is a communica-
tions port. Various modules use the PCI Bus to
exchange information.
The Check Engine lamp comes on each time the
ignition key is turned ON and stays on for 3 seconds
as a bulb test.
The Malfunction Indicator Lamp (MIL) stays on
continuously, when the PCM has entered a Limp-In
mode or identified a failed emission component. Dur-
ing Limp-in Mode, the PCM attempts to keep the
system operational. The MIL signals the need for
immediate service. In limp-in mode, the PCM com-
pensates for the failure of certain components that
send incorrect signals. The PCM substitutes for the
incorrect signals with inputs from other sensors.
If the PCM detects active engine misfire severe
enough to cause catalyst damage, it flashes the MIL.
At the same time the PCM also sets a Diagnostic
Trouble Code (DTC).
For signals that can trigger the MIL (Check
Engine Lamp) refer to the On-Board Diagnos-
tics section.
SPEED CONTROLÐPCM INPUT
OPERATION
The speed control system provides five separate
voltages (inputs) to the Powertrain Control Module
(PCM). The voltages correspond to the ON, OFF,
SET, RESUME, CANCEL, and COAST.
The speed control ON voltage informs the PCM
that the speed control system has been activated.
The speed control SET voltage informs the PCM that
a fixed vehicle speed has been selected. The speed
control RESUME voltage indicates the previous fixed
speed is requested. The speed control CANCEL volt-
age tells the PCM to deactivate but retain set speed
in memory (same as depressing the brake pedal). The
speed control COAST voltage informs the PCM to
coast down to a new desired speed. The speed control
OFF voltage tells the PCM that the speed control
system has deactivated. Refer to the Speed Control
section for more speed control information.
SCI RECEIVEÐPCM OUTPUT
OPERATION
SCI Receive is the serial data communication
receive circuit for the DRB scan tool. The Powertrain
Fig. 27 Ignition Coil Pack
PLFUEL SYSTEM 14 - 41
DESCRIPTION AND OPERATION (Continued)

(7) Using a soft face hammer, tap the front suspen-
sion crossmember back-and-forth or side-to-side until
it is aligned with the previously scribed positioning
marks on the body of the vehicle (Fig. 9). Once the
front suspension crossmember is correctly positioned,
tighten the rear two crossmember (and rear lower
control arm) mounting bolts to a torque of 203 N´m
(150 ft. lbs.), then tighten the front two crossmember
mounting bolts to a torque of 142 N´m (105 ft. lbs.).
(8) Fasten the engine torque strut to the right for-
ward corner of the front suspension crossmember
using its mounting bolt (Fig. 8). Follow the procedure
described in the ENGINE service manual group to
properly align and tighten the torque strut and it's
mounting bolts.
(9) Using a lint free towel, wipe clean the open
power steering hose ends and the power steering
gear ports. Replace the pressure hose used O-ring
with new. Lubricate the O-ring with power steering
fluid.
(10) Attach the power steering fluid pressure hose
to it's port on the power steering gear (Fig. 7). Start
the tube nut threads into the gear, but do not tighten
them at this time. On vehicles equipped with a power
steering fluid cooler, reconnect the cooler line to the
gear in place of the power steering fluid return hose.
(11) Open the routing clips on the front of the
steering gear housing and install the power steering
fluid pressure hose into the routing clips.
(12) On vehicles equipped with a power steering
fluid cooler, place the cooler in mounting position and
snap the cooler tube going to the gear into the right
routing clip.
(13) Close both routing clips.
(14) Tighten the power steering fluid pressure
hose tube nut at the gear to a torque of 34 N´m (25
ft. lbs.).
(15) If the vehicle is equipped with a power steer-
ing fluid cooler, install the two screws securing the
cooler to the front suspension crossmember. They are
located behind the cooler.
(16) On vehicle's with a power steering fluid cooler,
place the hose clamp on the hose far enough from the
end to clear the steel fitting on the gear. Do the same
for the fluid return hose on a vehicle that is not
equipped with a cooler.
(17) Push either hose listed in the above step onto
the steel fitting, then move and secure the clamp on
the hose past the bead on the steel fitting in the
steering gears outlet port (Fig. 7).
(18) Route the fluid return hose along the front of
the steering gear, clipping it into place in the
C-clamps on the outside of the routing clips on the
front of the power steering gear housing.
(19) Reconnect the wiring harness connector from
the power steering fluid pressure switch (Fig. 6). Besure the locking tab on the wiring harness connector
is securely latched.
(20) Perform the following to each outer tie rod:
²Place the tie rod heat shield on the knuckle's
steering arm, aligning the hole in the shield with the
hole in the knuckle and the tangs on the outside of
the shield with the outside configuration of the steer-
ing arm. The shield should now be facing outboard,
away from the power steering gear and tie rod (Fig.
4).
²Attach the outer tie rod end to its steering
knuckle.
²Start the attaching nut onto the stud of the
outer tie rod.
²While holding the stud of the tie rod stationary
with a wrench, tighten the attaching nut (Fig. 4).
²Using a crowfoot wrench attached to a torque
wrench, tighten the attaching nut to 55 N´m (40 ft.
lbs.).
(21) Install the tire and wheel assemblies back on
vehicle. Tighten the wheel mounting nuts to 135 N´m
(100 ft. lbs.) torque.
(22) Lower the vehicle to ground level.
(23) Install the dash-to-lower coupling seal in
place over the lower coupling's plastic collar.
NOTE: Verify that grease is present on the lip of
the dash-to-coupling seal where it contacts the cou-
pling's plastic collar.
(24) Inside the passenger compartment, reconnect
the steering column lower coupling to the steering
column upper coupling (Fig. 3). Install the coupling
pinch bolt and tighten the pinch bolt nut to a torque
of 28 N´m (250 in. lbs.). Install the pinch bolt
retainer pin.
(25) Remove the steering wheel holder.
(26) While looking under the instrument panel at
the lower coupling, rotate the steering wheel back-
and-forth to verify that the lower coupling does not
squeak against the dash-to-coupling seal.
(27) Perform the POWER STEERING PUMP INI-
TIAL OPERATION service procedure which can be
found in the POWER STEERING PUMP section of
this group to properly fill and bleed the power steer-
ing system.
(28) Check for fluid leaks.
(29) Adjust the front toe setting on the vehicle.
Refer to WHEEL ALIGNMENT in the SUSPENSION
service manual group.
OUTER TIE ROD
REMOVAL
(1) Raise the vehicle. Refer to HOISTING in the
LUBRICATION AND MAINTENANCE group in this
service manual for the correct lifting procedure.
19 - 26 STEERINGPL
REMOVAL AND INSTALLATION (Continued)

REMOVAL
(1) Disconnect the negative (-) cable from the bat-
tery and isolate the cable.
(2) Before beginning removal of the steering col-
umn, be sure the front wheels of vehicle are in the
STRAIGHT-AHEAD position.
(3) Remove the screw securing the left end of the
top cover to the instrument panel. It is located just
above the left instrument panel end cap.
(4) Starting on the driver's end, push upward on
the instrument panel top cover, disengaging its
retainer clips along the face of the instrument panel.
Disengage just enough clips to allow access to the
upper ends of the instrument cluster bezel.
(5) Disengage the clips along the outer edge of the
instrument cluster bezel and remove the bezel from
the vehicle.
(6) Remove the two screws along the bottom of the
steering column cover that mounts below the steering
column on the instrument panel. Disengage the clips
on the upper end of the steering column cover and
remove the cover by pulling it straight away from the
instrument panel.
(7) If the vehicle is equipped with speed control,
remove the speed control switches from the steering
wheel (Fig. 6).WARNING: WHEN AN UNDEPLOYED AIRBAG MOD-
ULE IS TO BE REMOVED FROM THE STEERING
WHEEL, FIRST DISCONNECT THE BATTERY
GROUND CABLE AND ISOLATE IT. ALLOW THE
SYSTEM CAPACITOR TO DISCHARGE FOR A MINI-
MUM OF TWO MINUTES, THEN BEGIN THE AIRBAG
REMOVAL.
(8) If the vehicle is not equipped with speed con-
trol, remove the airbag mounting screw trim caps
from the steering wheel rear cover (Fig. 7). There is
one on each side of the steering wheel.
(9) Remove the two mounting screws, one on each
side of steering wheel, attaching the airbag module
to the steering wheel (Fig. 6).
(10) Lay the airbag module back away from the
center of the steering wheel (Fig. 6). Disconnect the
clockspring and horn switch electrical connectors
from the back of the airbag module. Remove the air-
bag module from the steering wheel.
(11) Holding the steering wheel firmly in place,
remove the steering wheel retaining nut from the
steering column shaft in the center of the steering
wheel. If equipped, remove the damper weight from
the steering wheel.
Fig. 6 Steering Wheel Components
1 ± ELECTRICAL CONNECTOR
2 ± AIRBAG MOUNTING SCREWS
3 ± ELECTRICAL CONNECTOR
4 ± SPEED CONTROL SWITCH
5 ± AIRBAG MODULE ELECTRICAL CONNECTOR
6 ± AIRBAG MODULE
7 ± HORN SWITCH ELECTRICAL CONNECTOR
8 ± SPEED CONTROL SWITCH
Fig. 7 Trim Caps
1 ± MULTIFUNCTION SWITCH LEVER
2 ± STEERING WHEEL
3 ± TRIM CAP
19 - 32 STEERINGPL
REMOVAL AND INSTALLATION (Continued)

CAUTION: When installing a wheel puller on the
steering wheel, be sure the puller bolts are fully
seated in the threaded holes on the steering wheel.
If the bolts are not fully seated in the threaded
holes, the threads may be stripped out of the steer-
ing wheel when attempting to remove the steering
wheel. Also, thread the retaining nut back on the
end of the shaft until it is flush with the shaft end to
avoid damage to the shaft threads by the wheel
puller.
(12) Install a steering wheel puller on the steering
wheel (Fig. 8).
CAUTION: Do not bump or hammer on steering
wheel or steering column shaft when removing
steering wheel from steering column.
(13) Holding the steering wheel firmly in the
staight-ahead position, remove steering wheel from
the steering column shaft using the puller.
(14) Remove the ignition key from the ignition key
cylinder.
(15) Remove the two screws attaching the lower
shroud to the steering column and upper shroud (Fig.
9). After removing the screws, unclip the shouds from
each other by applying hand pressure along the
seams where the shrouds connect on the sides, then
remove the lower shroud from the upper shroud and
column. Remove the upper shroud from the steering
column.
(16) At the base of the column, remove the steer-
ing column coupling retainer pin, back off the pinch
bolt nut, and remove the steering column coupling
pinch bolt (Fig. 10) (the pinch bolt nut is caged to the
coupling and is not removable). Separate the upper
and lower steering column couplings.(17) If the vehicle is equipped with a automatic
transaxle, disconnect the automatic transaxle igni-
tion interlock cable from the steering column.
Depress the tab on top of the cable connector and
remove the cable from the back side of the steering
column ignition cylinder housing (Fig. 11).
(18) Remove the two lower mounting nuts attach-
ing the steering column to the instrument panel (Fig.
12).
(19) Remove the two upper mounting nuts attach-
ing the steering column to the instrument panel (Fig.
12).
Fig. 8 Steering Wheel Puller Installed
1 ± STEERING WHEEL
2 ± STEERING WHEEL PULLER
Fig. 9 Steering Column Shrouds
1 ± UPPER SHROUD
2 ± LOWER SHROUD
3 ± MOUNTING SCREWS
Fig. 10 Steering Column Couplings
1 ± STEERING COLUMN UPPER COUPLING
2 ± PINCH BOLT
3 ± STEERING COLUMN LOWER COUPLING
4 ± BRAKE PEDAL
5 ± NUT
6 ± RETAINER PIN
PLSTEERING 19 - 33
REMOVAL AND INSTALLATION (Continued)

(20) Lower the steering column away from the
instrument panel.
(21) Disconnect the wiring harness electrical con-
nector from the clockspring (Fig. 13).
(22) Disconnect the wiring harness electrical con-
nectors from the multi-function switch, windshield
wiper switch, and ignition switch (Fig. 14).(23) If the vehicle is equipped with a Sentry Key
Immobilizer Module (SKIM), disconnect its electrical
connector (Fig. 15).
(24) Remove the steering column from the vehicle.
(25) If the steering column is being replaced, per-
form the following:
(a) Remove the ignition key cylinder from the
steering column. To do this, insert the key and
turn the ignition key cylinder to the ON position.
Next, depress the retaining tab and remove the
Ignition key cylinder by pulling the key and cylin-
der straight out of the column together (Fig. 16).
Fig. 11 Interlock Cable
1 ± IGNITION SWITCH
2 ± CLIP
3 ± INTERLOCK CABLE
4 ± BTSI SOLENOID
Fig. 12 Steering Column Mounting Nuts
1 ± UPPER MOUNTING NUTS
2 ± STEERING COLUMN
3 ± LOWER MOUNTING NUTS
Fig. 13 Clockspring Electrical Connector
1 ± STEERING COLUMN
2 ± CLOCKSPRING
3 ± CLOCKSPRING ELECTRICAL CONNECTOR
4 ± IGNITION SWITCH ELECTRICAL CONNECTOR
Fig. 14 Electrical Connectors
1 ± MULTI-FUNCTION SWITCH ELECTRICAL CONNECTOR
2 ± WINDSHIELD WIPER SWITCH ELECTRICAL CONNECTOR
3 ± IGNITION SWITCH ELECTRICAL CONNECTOR
19 - 34 STEERINGPL
REMOVAL AND INSTALLATION (Continued)

(g) Install the ignition key cylinder in the steer-
ing column. To do this, first position the key cylin-
der in the ON position (with the key in it) so the
retaining tab can be depressed. Push key cylinder
into the column ignition cylinder housing until the
retaining tab locks into place (Fig. 16).
NOTE: When installing a tilt column, do not release
the tilt lever from the locked position until after the
column is installed on the instrument panel.
(2) Install the steering column into steering col-
umn access opening in the lower instrument panel.
(3) If the vehicle is equipped with a SKIM, Con-
nect its wiring harness electrical connector (Fig. 15).(4) Connect the wiring harness electrical connec-
tors to the multi-function switch, windshield wiper
switch, and ignition switch (Fig. 14).
(5) Connect the wiring harness electrical connector
to the clockspring (Fig. 13).
(6) Align the slots in the mounting brackets on the
steering column with the studs in the instrument
panel (Fig. 12) Attach the column to the instrument
panel by first installing the two upper mounting nuts
(Do not completely tighten the two upper mounting
nuts at this time). Next, install the two lower mount-
ing nuts. Tighten all four mounting nuts to a torque
of 17 N´m (150 in. lbs.).
(7) If the vehicle is equipped with an automatic
transaxle, connect the automatic transaxle ignition
interlock cable to the steering column by pushing the
end of the cable into the back side of the ignition cyl-
inder housing until it snaps into place (Fig. 11).
(8) Position the steering column shaft in the cor-
rect position for mounting to the lower coupling. To
do this, turn the steering wheel end of the shaft until
the missing spline area on that end of the shaft faces
straight up.
(9) Verify the front wheels of vehicle are in the
STRAIGHT-AHEAD position.
NOTE: Do not tighten the coupling pinch bolt any-
time the vehicle is not at curb riding height. It may
cause unwanted conditions within the steering col-
umn if the vehicle is suspended in any manner
when the pinch bolt is tightened.
(10) Reconnect the steering column lower coupling
to the steering column upper coupling (Fig. 10).
Install the coupling pinch bolt an tighten the pinch
Fig. 18 Multi-function/Wiper Switch Mounting
1 ± MOUNTING SCREWS
2 ± MULTI-FUNCTION/WINDSHIELD WIPER SWITCH ASSEMBLY
Fig. 19 SKIM Mounting
1 ± HALO TRIM RING
2 ± MOUNTING SCREWS
3 ± SKIM
Fig. 20 Ignition Switch Mounting
1 ± MOUNTING SCREW
2 ± IGNITION SWITCH
19 - 36 STEERINGPL
REMOVAL AND INSTALLATION (Continued)

bolt nut to a torque of 28 N´m (250 in. lbs.). Install
the pinch bolt retainer pin.
(11) Install the upper and lower steering column
shrouds onto the steering column (Fig. 9). Snap the
two shrouds together and then install and tighten
the two screws securing the shrouds to the column.
(12) Install the steering column cover that mounts
below the steering column on the instrument panel
by first aligning the retainer clips and snapping the
cover into place. Install the two screws along the bot-
tom of the steering column cover.
(13) Align the clips along the outer edge of the
instrument cluster bezel with the mounting holes in
the instrument panel and install the bezel.
(14) Align the clips on the bottom of the instru-
ment panel top cover with the mounting holes in the
instrument panel and install the top cover by push-
ing it down into place.
(15) Install the screw securing the left end of the
top cover to the instrument panel.
CAUTION: If there is any question as to whether
the clockspring is in the centered position, the
clock spring needs to be recentered before install-
ing the steering wheel. If the clockspring is not cen-
tered, it may be overextended, causing the
clockspring to become inoperative.
(16) Center the clockspring using the following
procedure:
²Using your fingers, rotate the clockspring rotor
in the CLOCKWISE DIRECTION to the end of the
travel. Do not apply excessive torque.
²From the end of travel, rotate the rotor two full
turns and an additional half turn in the counter-
clockwise direction. (The wires should end up at the
bottom of the clockspring).
CAUTION: Do not install the steering wheel onto
the shaft of the steering column by driving it onto
the shaft.
(17) Feed the clockspring wiring leads through the
hole in the steering wheel (Fig. 6). Align the steering
wheel's wide mounting spline with the steering col-
umn shaft missing spline area and push the wheel
onto the shaft. Make sure the clockspring squares up
with the back of the wheel and does not bind.
(18) Install the steering wheel retaining nut and
tighten it until the steering wheel is fully installed
on shaft. Tighten the steering wheel retaining nut to
a torque of 61 N´m (45 ft. lbs.).
(19) Connect the clockspring electrical leads to the
speed control switches and reinstall the switches on
the steering wheel (Fig. 6).
(20) Install the airbag electrical lead from the
clockspring into the connector on the back of the air-bag module (Fig. 6). Be sure electrical connector from
clockspring is securely latched into airbag module
connector.
(21) Connect the horn switch electrical lead to the
connector on the back of the airbag module (Fig. 6).
CAUTION: The fasteners originally used for the air-
bag components are specifically designed for the
airbag system. They must never be replaced with
any substitutes. Anytime a new fastener is needed,
replace it with only the correct fastener listed in the
parts book.
(22) Install the airbag module into the center of
the steering wheel. Align the airbag module mount-
ing holes with the bolt holes in steering wheel (Fig.
6). Install only the two original or identical replace-
ment airbag module mounting screws. Tighten the
two air bag module attaching bolts to a torque of 10
N´m (90 in. lbs.).
(23) Install the airbag mounting screw trim caps
on the steering wheel rear cover (Fig. 7). One belongs
on each side of the steering wheel.
NOTE: When reconnecting the battery on a vehicle
that has had the airbag module removed, the fol-
lowing procedure should be used.
(24) Reconnect the ground cable to the negative
post of the battery in the following manor:
²Connect a scan tool (DRBIIIt) to the data link
diagnostic connector located below the steering col-
umn.
²Turn the ignition key to the ON position. Exit
the vehicle with the scan tool leaving the scan tool
harness plugged in.
²Ensuring that there are no occupants in the
vehicle, connect the ground (-) cable to the negative
post of the battery.
²Using the scan tool, read and record any fault
codes. Refer to the DRIVER AND PASSENGER AIR-
BAG SYSTEM diagnostic manual if any faults are
found.
²Erase any stored faults if there are no active
fault codes. If a problem exists, the fault code will
not erase.
²Reach around the back of the steering wheel (in
front of the instrument cluster) and turn the ignition
key to OFF, then back ON while observing the
instrument cluster airbag lamp. It should go on for
six to eight seconds, then go out. This will indicate
that the airbag system is functioning normally. If air-
bag warning lamp fails to light, blinks on and off, or
goes on and stays on, there is an airbag system mal-
function. Refer to the BODY DIAGNOSTIC PROCE-
DURES manual to diagnose the system malfunction.
PLSTEERING 19 - 37
REMOVAL AND INSTALLATION (Continued)