Dodge Restraints Service Manual
DR RESTRAINTS 8O - 1
RESTRAINTS
TABLE OF CONTENTS
page page
RESTRAINTS
DESCRIPTION ..........................2
OPERATION ............................4
WARNING
WARNINGS - RESTRAINT SYSTEM ........5
DIAGNOSIS AND TESTING - SUPPLEMENTAL
RESTRAINT SYSTEM ...................6
STANDARD PROCEDURE
STANDARD PROCEDURE - HANDLING
NON-DEPLOYED SUPPLEMENTAL
RESTRAINTS .........................6
STANDARD PROCEDURE - SERVICE
AFTER A SUPPLEMENTAL RESTRAINT
DEPLOYMENT.........................7
STANDARD PROCEDURE - VERIFICATION
TEST ................................8
ACM COVER
REMOVAL .............................9
INSTALLATION ..........................9
AIRBAG CONTROL MODULE
DESCRIPTION .........................10
OPERATION ...........................10
REMOVAL .............................11
INSTALLATION .........................12
AUTOMATIC LOCKING RETRACTOR
DESCRIPTION .........................13
OPERATION ...........................14
CHILD RESTRAINT ANCHOR
DESCRIPTION .........................14
OPERATION ...........................16
REMOVAL .............................16
INSTALLATION .........................17
CLOCKSPRING
DESCRIPTION .........................18
OPERATION ...........................18
STANDARD PROCEDURE - CLOCKSPRING
CENTERING .........................19
REMOVAL .............................20
INSTALLATION .........................21
DRIVER AIRBAG
DESCRIPTION .........................22
OPERATION ...........................23
REMOVAL .............................23
INSTALLATION .........................24
FRONT CENTER SEAT BELT & RETRACTOR
REMOVAL .............................25
INSTALLATION .........................26
FRONT CENTER SEAT BELT
REMOVAL .............................26
INSTALLATION .........................27
FRONT OUTBOARD SEAT BELT &
RETRACTOR
REMOVAL
REMOVAL - STANDARD CAB ............28
REMOVAL - QUAD CAB ................29
INSTALLATION
INSTALLATION - STANDARD CAB .........31
INSTALLATION - QUAD CAB .............32
FRONT OUTBOARD SEAT BELT BUCKLE
REMOVAL .............................33
INSTALLATION .........................34
PASSENGER AIRBAG
DESCRIPTION .........................34
OPERATION ...........................35
REMOVAL .............................35
INSTALLATION .........................37
PASSENGER AIRBAG ON/OFF SWITCH
DESCRIPTION .........................38
OPERATION ...........................38
REMOVAL .............................39
INSTALLATION .........................39
REAR CENTER SEAT BELT & RETRACTOR
REMOVAL .............................39
INSTALLATION .........................40
REAR OUTBOARD SEAT BELT & RETRACTOR
REMOVAL .............................41
INSTALLATION .........................42
REAR SEAT BELT BUCKLE
REMOVAL
REMOVAL - CENTER & LEFT OUTBOARD . . 43
REMOVAL - CENTER ANCHOR & RIGHT
OUTBOARD..........................43
INSTALLATION
INSTALLATION - CENTER & LEFT
OUTBOARD..........................45
INSTALLATION - CENTER ANCHOR &
RIGHT OUTBOARD ....................45
SEAT BELT SWITCH
DESCRIPTION .........................46
OPERATION ...........................46
DIAGNOSIS AND TESTING - SEAT BELT
SWITCH ............................47
SEAT BELT TENSIONER
DESCRIPTION .........................47
OPERATION ...........................48
SEAT BELT TENSION REDUCER
DESCRIPTION .........................48
OPERATION ...........................49
8O - 2 RESTRAINTS DR
DIAGNOSIS AND TESTING - SEAT BELT
TENSION REDUCER ...................49
SEAT BELT TURNING LOOP ADJUSTER
REMOVAL .............................50
INSTALLATION .........................50
SIDE CURTAIN AIRBAG
DESCRIPTION .........................51
OPERATION ...........................51
REMOVAL .............................52
INSTALLATION .........................53
RESTRAINTS
DESCRIPTION
An occupant restraint system is standard factoryinstalled safety equipment on this model. Available
occupant restraints for this model include both active
and passive types. Active restraints are those which
require the vehicle occupants to take some action to
employ, such as fastening a seat belt; while passive
restraints require no action by the vehicle occupants
to be employed (Fig. 1).
ACTIVE RESTRAINTS
The active restraints for this model include:
• Front Seat Belts - Both outboard front seating
positions are equipped with three-point seat belt systems employing a lower B-pillar mounted inertia
latch-type emergency locking retractor, height-adjustable upper B-pillar mounted turning loops, a fixed
lower seat belt anchor secured to the lower B-pillar
(standard cab) or floor panel adjacent to the B-pillar
(quad cab), and a traveling end-release seat belt
buckle secured to the inboard seat track. The driver
side retractor for standard cab models includes an
electrically actuated seat belt tension reducer. The
passenger side front seat retractor for all models is
also switchable from an emergency locking retractor
to an automatic locking retractor. The front seat belt
buckle for the driver side of all models includes an
integral seat belt switch that detects whether its seat
belt has been fastened. The center front seating position for standard cab models is also equipped with a
three-point seat belt employing a floor panel
mounted inertia latch-type retractor, a routing
bracket and bezel near the top of the cab back panel,
and two fixed end-release buckles secured to the center seat cushion frame. The center front seating position for quad cab models is equipped with a fixed lap
belt and an end-release buckle secured to the center
seat cushion frame.
• Rear Seat Belts - All three rear seating posi-
tions are equipped with three-point seat belt systems. The outboard seating position belts employ a
lower C-pillar mounted inertia latch-type emergency
locking retractor, a fixed position upper C-pillar
mounted turning loop, and a fixed lower seat belt
SIDE IMPACT AIRBAG CONTROL MODULE
DESCRIPTION .........................53
OPERATION ...........................54
REMOVAL
REMOVAL ...........................55
REMOVAL ...........................55
INSTALLATION
INSTALLATION .......................56
INSTALLATION .......................57
anchor secured to the lower C-pillar. The rear seat
center seating position belt has a rear floor panel
mounted inertia latch-type emergency locking retractor and a routing bracket and bezel on the top of the
cab back panel. The end-release buckle units for the
right outboard seating position and the center seating position lower anchor are integral to the center
retractor mounting bracket on the rear floor panel.
The end-release buckle units for the center and left
outboard seating positions are individually secured to
the rear floor panel on models with the standard
equipment rear bench seat, or secured with the rear
seat mounting hardware on models with the optional
60/40 split rear bench seat.
• Child Restraint Anchors - All standard cab
models are equipped with two, fixed-position, child
seat upper tether anchors that are integral to the
upper cab back panel reinforcement and concealed
behind individual trim cover and bezel units that are
integral to the cab back trim panel. All quad cab
models are equipped with three child seat upper
tether anchor straps that are secured to the upper
cab back panel reinforcement, behind the upright
rear seat back. Two lower anchors are also provided
for the front outboard seating position of standard
cab models, and for each rear outboard seating position on quad cab models. These lower anchors are
accessed from the front of the seat where the seat
back meets the seat cushion. The child seat tether
and lower anchors for the front seat are deleted on
quad cab models.
PASSIVE RESTRAINTS
The passive restraints available for this model
include the following:
• Dual Front Airbags - Next Generation driver
and front passenger airbags are available for this
model. This airbag system is a passive, inflatable,
Supplemental Restraint System (SRS) and vehicles
with this equipment can be readily identified by the
“SRS - AIRBAG” logo molded into the driver airbag
trim cover in the center of the steering wheel and
also into the passenger airbag door on the instrument panel above the glove box (Fig. 2). Vehicles
with the airbag system can also be identified by the
airbag indicator, which will illuminate in the instru-
DR RESTRAINTS 8O - 3
RESTRAINTS (Continued)
Fig. 1 Supplemental Restraint System
1 - AIRBAG CONTROL MODULE
2 - PASSENGER AIRBAG
3 - PASSENGER AIRBAG ON/OFF SWITCH (STD CAB ONLY)
4 - DRIVERAIRBAG
ment cluster for about six seconds as a bulb test each
time the ignition switch is turned to the On position.
A pyrotechnic-type seat belt tensioner is integral to
the front outboard seat belt retractors mounted on
each lower B-pillar of all models equipped with dual
front airbags.
• Side Curtain Airbags - Optional side curtain
airbags are available for this model when it is also
equipped with dual front airbags. This airbag system
is a passive, inflatable, Supplemental Restraint System (SRS) and vehicles with this equipment can be
readily identified by a molded identification trim but-
5 - SIDE CURTAIN AIRBAG
6 - SIDE IMPACT AIRBAG CONTROL MODULE
7 - SEAT BELT TENSIONER
ton with the “SRS - AIRBAG” logo located on the
headliner above each B-pillar (Fig. 2).
The supplemental restraint system includes the
following major components, which are described in
further detail elsewhere in this service information:
• Airbag Control Module - The Airbag Control
Module (ACM) is located on a mount on the floor
panel transmission tunnel, below the center of the
instrument panel.
• Airbag Indicator - The airbag indicator is inte-
gral to the ElectroMechanical Instrument Cluster
(EMIC), which is located on the instrument panel in
front of the driver.
8O - 4 RESTRAINTS DR
RESTRAINTS (Continued)
the Programmable Communications Interface (PCI)
data bus network. This method of communication is
used by the ACM for control of the airbag indicator
on all models equipped with dual front airbags.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/COMMUNICATION - DESCRIPTION).
Hard wired circuitry connects the supplemental
restraint system components to each other through
the electrical system of the vehicle. These hard wired
circuits are integral to several wire harnesses, which
are routed throughout the vehicle and retained by
many different methods. These circuits may be connected to each other, to the vehicle electrical system,
and to the supplemental restraint system components through the use of a combination of soldered
Fig. 2 SRS Logo
• Clockspring - The clockspring is located near
the top of the steering column, directly beneath the
steering wheel.
• Driver Airbag - The driver airbag is located in
the center of the steering wheel, beneath the driver
airbag trim cover.
• Driver Knee Blocker - The driver knee blocker
is a structural unit secured to the back side of and
integral to the instrument panel steering column
opening cover.
• Passenger Airbag - The passenger airbag is
located on the instrument panel, beneath the passenger airbag door on the instrument panel above the
glove box on the passenger side of the vehicle.
• Passenger Airbag On/Off Switch - Standard
cab models without a rear seat are equipped with a
passenger airbag on/off switch, which is located on
the right side of the instrument panel center bezel.
• Passenger Knee Blocker - The passenger knee
blocker is a structural reinforcement that is integral
to and concealed within the glove box door.
• Seat Belt Tensioner - The seat belt tensioner
is integral to the front outboard seat belt retractor
units on vehicles equipped with dual front airbags.
• Side Impact Airbag Control Module -Two
Side Impact Airbag Control Modules (SIACM) are
used on vehicles with the optional side curtain airbags, one left side and one right side. One SIACM is
located behind the B-pillar trim above the outboard
front seat belt retractor within each B-pillar.
• Side Curtain Airbag - In vehicles equipped
with this option, a side curtain airbag is located on
each inside roof side rail above the headliner, and
extends from the A-pillar to the B-pillar on standard
cab models, and from the A-pillar to the C-pillar on
quad cab models.
The ACM, both SIACMs, and the EMIC each contain a central processing unit and programming that
allow them to communicate with each other using
splices, splice block connectors, and many different
types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information.
The wiring information includes wiring diagrams,
proper wire and connector repair procedures, further
details on wire harness routing and retention, as well
as pin-out and location views for the various wire
harness connectors, splices and grounds.
OPERATION
ACTIVE RESTRAINTS
The primary passenger restraints in this or any
other vehicle are the standard equipment factory-installed seat belts and child restraint anchors. Seat
belts and child restraint anchors are referred to as
an active restraint because the vehicle occupants are
required to physically fasten and properly adjust
these restraints in order to benefit from them. See
the owner’s manual in the vehicle glove box for more
information on the features, use and operation of all
of the factory-installed active restraints.
PASSIVE RESTRAINTS
The passive restraints are referred to as a supplemental restraint system because they were designed
and are intended to enhance the protection for the
occupants of the vehicle only when used in conjunction with the seat belts. They are referred to as passive restraints because the vehicle occupants are not
required to do anything to make them operate; however, the vehicle occupants must be wearing their
seat belts in order to obtain the maximum safety
benefit from the factory-installed supplemental
restraint system.
The supplemental restraint system electrical circuits are continuously monitored and controlled by a
microprocessor and software contained within the
Airbag Control Module (ACM) and, on vehicles
equipped with the side curtain airbags, both Side
DR RESTRAINTS 8O - 5
RESTRAINTS (Continued)
Impact Airbag Control Modules (SIACM). An airbag
indicator in the ElectroMechanical Instrument Cluster (EMIC) illuminates for about six seconds as a
bulb test each time the ignition switch is turned to
the On or Start positions. Following the bulb test,
the airbag indicator is turned on or off by the ACM
to indicate the status of the supplemental restraint
system. If the airbag indicator comes on at any time
other than during the bulb test, it indicates that
there is a problem in the supplemental restraint system electrical circuits. Such a problem may cause airbags not to deploy when required, or to deploy when
not required.
Deployment of the supplemental restraints
depends upon the angle and severity of an impact.
Deployment is not based upon vehicle speed; rather,
deployment is based upon the rate of deceleration as
measured by the forces of gravity (G force) upon the
impact sensors. When an impact is severe enough,
the microprocessor in the ACM or the SIACM signals
the inflator of the appropriate airbag units to deploy
their airbag cushions. The outboard front seat belt
tensioners are provided with a deployment signal by
the ACM in conjunction with the driver and passenger airbags. During a frontal vehicle impact, the
knee blockers work in concert with properly fastened
and adjusted seat belts to restrain both the driver
and the front seat passenger in the proper position
for an airbag deployment. The knee blockers also
absorb and distribute the crash energy from the
driver and the front seat passenger to the structure
of the instrument panel. The seat belt tensioner
removes the slack from the outboard front seat belts
to provide further assurance that the driver and
front seat passenger are properly positioned and
restrained for an airbag deployment.
Typically, the vehicle occupants recall more about
the events preceding and following a collision than
they do of an airbag deployment itself. This is
because the airbag deployment and deflation occur so
rapidly. In a typical 48 kilometer-per-hour (30 mileper-hour) barrier impact, from the moment of impact
until the airbags are fully inflated takes about 40
milliseconds. Within one to two seconds from the
moment of impact, the airbags are almost entirely
deflated. The times cited for these events are approximations, which apply only to a barrier impact at the
given speed. Actual times will vary somewhat,
depending upon the vehicle speed, impact angle,
severity of the impact, and the type of collision.
When the ACM monitors a problem in any of the
dual front airbag system circuits or components,
including the seat belt tensioners, it stores a fault
code or Diagnostic Trouble Code (DTC) in its memory
circuit and sends an electronic message to the EMIC
to turn on the airbag indicator. When the SIACM
monitors a problem in any of the side curtain airbag
system circuits or component, it stores a fault code or
DTC in its memory circuit and sends an electronic
message to the ACM, and the ACM sends an electronic message to the EMIC to turn on the airbag
indicator. Proper testing of the supplemental
restraint system components, the Programmable
Communications Interface (PCI) data bus, the electronic message inputs to and outputs from the EMIC,
the SIACM, or the ACM, as well as the retrieval or
erasure of a DTC from the ACM, SIACM, or EMIC
requires the use of a DRBIIIt scan tool. Refer to the
appropriate diagnostic information.
See the owner’s manual in the vehicle glove box for
more information on the features, use and operation
of all of the factory-installed passive restraints.
WARNING
WARNINGS - RESTRAINT SYSTEM
WARNING: DURING AND FOLLOWING ANY SEAT
BELT OR CHILD RESTRAINT ANCHOR SERVICE,
CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES,
MOUNTING HARDWARE, RETRACTORS, TETHER
STRAPS, AND ANCHORS FOR PROPER INSTALLATION, OPERATION, OR DAMAGE. REPLACE ANY
BELT THAT IS CUT, FRAYED, OR TORN.
STRAIGHTEN ANY BELT THAT IS TWISTED.
TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY
BELT THAT HAS A DAMAGED OR INOPERATIVE
BUCKLE OR RETRACTOR. REPLACE ANY BELT
THAT HAS A BENT OR DAMAGED LATCH PLATE
OR ANCHOR PLATE. REPLACE ANY CHILD
RESTRAINT ANCHOR OR THE UNIT TO WHICH THE
ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR
DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT
BELT OR CHILD RESTRAINT COMPONENT.
ALWAYS REPLACE DAMAGED OR FAULTY SEAT
BELT AND CHILD RESTRAINT COMPONENTS WITH
THE CORRECT, NEW AND UNUSED REPLACEMENT
PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR
PARTS CATALOG.
8O - 6 RESTRAINTS DR
RESTRAINTS (Continued)
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,
PASSENGER AIRBAG, SEAT BELT TENSIONER,
SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE, THEN WAIT TWO MINUTES FOR
THE SYSTEM CAPACITOR TO DISCHARGE BEFORE
PERFORMING FURTHER DIAGNOSIS OR SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
WARNING: AN AIRBAG INFLATOR UNIT MAY CONTAIN SODIUM AZIDE AND POTASSIUM NITRATE.
THESE MATERIALS ARE POISONOUS AND
EXTREMELY FLAMMABLE. CONTACT WITH ACID,
WATER, OR HEAVY METALS MAY PRODUCE HARMFUL AND IRRITATING GASES (SODIUM HYDROXIDE
IS FORMED IN THE PRESENCE OF MOISTURE) OR
COMBUSTIBLE COMPOUNDS. AN AIRBAG INFLATOR UNIT MAY ALSO CONTAIN A GAS CANISTER
PRESSURIZED TO OVER 2500 PSI. DO NOT
ATTEMPT TO DISMANTLE AN AIRBAG UNIT OR
TAMPER WITH ITS INFLATOR. DO NOT PUNCTURE,
INCINERATE, OR BRING INTO CONTACT WITH
ELECTRICITY. DO NOT STORE AT TEMPERATURES
EXCEEDING 93° C (200° F).
WARNING: WHEN HANDLING A SEAT BELT TENSIONER RETRACTOR, PROPER CARE SHOULD BE
EXERCISED TO KEEP FINGERS OUT FROM UNDER
THE RETRACTOR COVER AND AWAY FROM THE
SEAT BELT WEBBING WHERE IT EXITS FROM THE
RETRACTOR COVER.
THE CORRECT FASTENERS PROVIDED IN THE
SERVICE PACKAGE OR SPECIFIED IN THE
DAIMLERCHRYSLER MOPAR PARTS CATALOG.
WARNING: WHEN A STEERING COLUMN HAS AN
AIRBAG UNIT ATTACHED, NEVER PLACE THE COLUMN ON THE FLOOR OR ANY OTHER SURFACE
WITH THE STEERING WHEEL OR AIRBAG UNIT
FACE DOWN.
DIAGNOSIS AND TESTING - SUPPLEMENTAL
RESTRAINT SYSTEM
Proper diagnosis and testing of the supplemental
restraint system components, the Programmable
Communications Interface (PCI) data bus, the data
bus electronic message inputs to and outputs from
the ElectroMechanical Instrument Cluster (EMIC),
the Airbag Control Module (ACM), or the Side
Impact Airbag Control Module (SIACM) as well as
the retrieval or erasure of a Diagnostic Trouble Code
(DTC) from the ACM or SIACM requires the use of a
DRBIIIt scan tool. Refer to the appropriate diagnostic information.
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,
PASSENGER AIRBAG, SEAT BELT TENSIONER,
SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE, THEN WAIT TWO MINUTES FOR
THE SYSTEM CAPACITOR TO DISCHARGE BEFORE
PERFORMING FURTHER DIAGNOSIS OR SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
WARNING: REPLACE ALL RESTRAINT SYSTEM
COMPONENTS ONLY WITH PARTS SPECIFIED IN
THE DAIMLERCHRYSLER MOPAR PARTS CATALOG. SUBSTITUTE PARTS MAY APPEAR INTERCHANGEABLE, BUT INTERNAL DIFFERENCES MAY
RESULT IN INFERIOR OCCUPANT PROTECTION.
WARNING: THE FASTENERS, SCREWS, AND
BOLTS ORIGINALLY USED FOR THE RESTRAINT
SYSTEM COMPONENTS HAVE SPECIAL COATINGS
AND ARE SPECIFICALLY DESIGNED FOR THE
RESTRAINT SYSTEM. THEY MUST NEVER BE
REPLACED WITH ANY SUBSTITUTES. ANY TIME A
NEW FASTENER IS NEEDED, REPLACE IT WITH
STANDARD PROCEDURE
STANDARD PROCEDURE - HANDLING
NON-DEPLOYED SUPPLEMENTAL RESTRAINTS
At no time should any source of electricity be permitted near the inflator on the back of a non-deployed airbag or seat belt tensioner. When carrying a
non-deployed airbag, the trim cover or airbag cushion
side of the unit should be pointed away from the
body to minimize injury in the event of an accidental
deployment. If the airbag unit is placed on a bench or
any other surface, the trim cover or airbag cushion
side of the unit should be face up to minimize move-
DR RESTRAINTS 8O - 7
RESTRAINTS (Continued)
ment in the event of an accidental deployment. When
handling a non-deployed seat belt tensioner, take
proper care to keep fingers out from under the
retractor cover and away from the seat belt webbing
where it exits from the retractor cover. In addition,
the supplemental restraint system should be disarmed whenever any steering wheel, steering column, seat belt tensioner, driver airbag, passenger
airbag, side curtain airbag, or instrument panel components require diagnosis or service. Failure to
observe this warning could result in accidental airbag deployment and possible personal injury.
All damaged, faulty or non-deployed airbags and
seat belt tensioners which are replaced on vehicles
are to be handled and disposed of properly. If an airbag or seat belt tensioner unit is faulty or damaged
and non-deployed, refer to the Hazardous Substance
Control System for proper disposal. Dispose of all
non-deployed and deployed airbags and seat belt tensioners in a manner consistent with state, provincial,
local and federal regulations.
SUPPLEMENTAL RESTRAINT STORAGE
Airbags and seat belt tensioners must be stored in
their original, special container until they are used
for service. Also, they must be stored in a clean, dry
environment; away from sources of extreme heat,
sparks, and high electrical energy. Always place or
store any airbag on a surface with its trim cover or
airbag cushion side facing up, to minimize movement
in case of an accidental deployment.
age. Because the ACM and SIACM each contain
impact sensors that are used by the supplemental
restraint system to monitor or confirm the direction
and severity of a vehicle impact, improper orientation
or insecure fastening of these components may cause
airbags not to deploy when required, or to deploy
when not required. All other vehicle components
should be closely inspected following any supplemental restraint deployment, but are to be replaced only
as required by the extent of the visible damage
incurred.
CLEANUP PROCEDURE
Following a supplemental restraint deployment,
the vehicle interior will contain a powdery residue.
This residue consists primarily of harmless particulate by-products of the small pyrotechnic charge that
initiates the propellant used to deploy a supplemental restraint. However, this residue may also contain
traces of sodium hydroxide powder, a chemical
by-product of the propellant material that is used to
generate the inert gas that inflates the airbag. Since
sodium hydroxide powder can irritate the skin, eyes,
nose, or throat, be certain to wear safety glasses,
rubber gloves, and a long-sleeved shirt during
cleanup (Fig. 3).
STANDARD PROCEDURE - SERVICE AFTER A
SUPPLEMENTAL RESTRAINT DEPLOYMENT
Any vehicle which is to be returned to use following a supplemental restraint deployment, must have
the deployed restraints replaced. In addition, if the
driver airbag has been deployed, the clockspring
must be replaced. If the passenger airbag is
deployed, the passenger airbag door must be
replaced. The seat belt tensioners are deployed by
the same signal that deploys the driver and passenger airbags and must also be replaced if either front
airbag has been deployed. If a side curtain airbag
has been deployed, the complete airbag unit, the
headliner, as well as the upper A, B, and C-pillar
trim must be replaced. These components are not
intended for reuse and will be damaged or weakened
as a result of a supplemental restraint deployment,
which may or may not be obvious during a visual
inspection.
It is also critical that the mounting surfaces and/or
mounting brackets for the Airbag Control Module
(ACM) and Side Impact Airbag Control Module
(SIACM) be closely inspected and restored to their
original conditions following any vehicle impact dam-
Fig. 3 Wear Safety Glasses and Rubber Gloves -
Typical
WARNING: IF YOU EXPERIENCE SKIN IRRITATION
DURING CLEANUP, RUN COOL WATER OVER THE
AFFECTED AREA. ALSO, IF YOU EXPERIENCE
IRRITATION OF THE NOSE OR THROAT, EXIT THE
VEHICLE FOR FRESH AIR UNTIL THE IRRITATION
CEASES. IF IRRITATION CONTINUES, SEE A PHYSICIAN.
(1) Begin the cleanup by using a vacuum cleaner
to remove any residual powder from the vehicle interior. Clean from outside the vehicle and work your
8O - 8 RESTRAINTS DR
RESTRAINTS (Continued)
way inside, so that you avoid kneeling or sitting on a
non-cleaned area.
(2) Be certain to vacuum the heater and air conditioning outlets as well (Fig. 4). Run the heater and
air conditioner blower on the lowest speed setting
and vacuum any powder expelled from the outlets.
Fig. 4 Vacuum Heater and A/C Outlets - Typical
CAUTION: All damaged, faulty, or non-deployed
supplemental restraints which are replaced on vehicles are to be handled and disposed of properly. If
an airbag unit or seat belt tensioner unit is faulty or
damaged and non-deployed, refer to the Hazardous
Substance Control System for proper disposal. Be
certain to dispose of all non-deployed and deployed
supplemental restraints in a manner consistent with
state, provincial, local and federal regulations.
PERFORMING FURTHER DIAGNOSIS OR SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
(1) During the following test, the battery negative
cable remains disconnected and isolated, as it was
during the supplemental restraint system component
removal and installation procedures.
(2) Be certain that the DRBIIIt scan tool contains
the latest version of the proper DRBIIIt software.
Connect the DRBIIIt to the 16-way Data Link Connector (DLC). The DLC is located on the driver side
lower edge of the instrument panel, outboard of the
steering column (Fig. 5).
(3) Next, remove the deployed supplemental
restraints from the vehicle. Refer to the appropriate
service removal procedures.
(4) You may need to vacuum the interior of the
vehicle a second time to recover all of the powder.
STANDARD PROCEDURE - VERIFICATION TEST
The following procedure should be performed using
a DRBIIIt scan tool to verify proper supplemental
restraint system operation following the service or
replacement of any supplemental restraint system
component.
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,
PASSENGER AIRBAG, SEAT BELT TENSIONER,
SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE, THEN WAIT TWO MINUTES FOR
THE SYSTEM CAPACITOR TO DISCHARGE BEFORE
Fig. 5 16-Way Data Link Connector - Typical
1 - 16–WAY DATA LINK CONNECTOR
2 - BOTTOM OF INSTRUMENT PANEL
(3) Turn the ignition switch to the On position and
exit the vehicle with the DRBIIIt scan tool.
(4) Check to be certain that nobody is in the vehi-
cle, then reconnect the battery negative cable.
(5) Using the DRBIIIt, read and record the active
(current) Diagnostic Trouble Code (DTC) data.
(6) Next, use the DRBIIIt to read and record any
stored (historical) DTC data.
(7) If any DTC is found in Step 5 or Step 6, refer
to the appropriate diagnostic information.
(8) Use the DRBIIIt to erase the stored DTC data.
If any problems remain, the stored DTC data will not
erase. Refer to the appropriate diagnostic information to diagnose any stored DTC that will not erase.
DR RESTRAINTS 8O - 9
RESTRAINTS (Continued)
If the stored DTC information is successfully erased,
go to Step 9.
(9) Turn the ignition switch to the Off position for
about fifteen seconds, and then back to the On position. Observe the airbag indicator in the instrument
cluster. It should illuminate for six to eight seconds,
and then go out. This indicates that the supplemental restraint system is functioning normally and that
the repairs are complete. If the airbag indicator fails
to light, or lights and stays on, there is still an active
supplemental restraint system fault or malfunction.
Refer to the appropriate diagnostic information to
diagnose the problem.
ACM COVER
Fig. 6 ACM Cover Remove/Install
REMOVAL
The Airbag Control Module (ACM) cover is used
only on models with an automatic transmission. Models with a manual transmission require that the floor
console be removed to access the ACM for service.
(Refer to 23 - BODY/INTERIOR/FLOOR CONSOLE REMOVAL).
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,
PASSENGER AIRBAG, SEAT BELT TENSIONER,
SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE, THEN WAIT TWO MINUTES FOR
THE SYSTEM CAPACITOR TO DISCHARGE BEFORE
PERFORMING FURTHER DIAGNOSIS OR SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
(1) Disconnect and isolate the battery negative
cable. Wait two minutes for the system capacitor to
discharge before further service.
(2) Using a trim stick or another suitable wide
flat-bladed tool, gently pry each side of the ACM
cover away from the instrument panel at each side of
the center bracket on the floor panel transmission
tunnel far enough to disengage the two snap clip
retainers from the instrument panel receptacles (Fig.
6).
(3) Remove the ACM cover from the instrument
panel.
1 - INSTRUMENT PANEL RECEPTACLE (2)
2 - ACM COVER
INSTALLATION
The Airbag Control Module (ACM) cover is used
only on models with an automatic transmission. Models with a manual transmission require that the floor
console be reinstalled following ACM service. (Refer
to 23 - BODY/INTERIOR/FLOOR CONSOLE INSTALLATION).
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,
PASSENGER AIRBAG, SEAT BELT TENSIONER,
SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE, THEN WAIT TWO MINUTES FOR
THE SYSTEM CAPACITOR TO DISCHARGE BEFORE
PERFORMING FURTHER DIAGNOSIS OR SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
(1) Position the ACM cover to the instrument
panel (Fig. 6).
(2) Align the snap clip retainer on each side of the
ACM cover with the instrument panel receptacle at
each side of the center bracket on the floor panel
transmission tunnel.
(3) Using hand pressure, press firmly and evenly
on the outside of the ACM cover over each snap clip
retainer location until each retainer is fully engaged
in its instrument panel receptacle.
(4) Reconnect the battery negative cable.
8O - 10 RESTRAINTS DR
AIRBAG CONTROL MODULE
DESCRIPTION
Fig. 7 Airbag Control Module
1 - AIRBAG CONTROL MODULE
2 - ORIENTATION ARROW
3 - CONNECTOR RECEPTACLE
The Airbag Control Module (ACM) is secured with
four screws to the top mounting surface of a stamped
steel bracket welded onto the top of the floor panel
transmission tunnel forward of the instrument panel
center support bracket and below the instrument
panel center stack in the passenger compartment of
the vehicle (Fig. 7). Concealed within a hollow in the
center of the die cast aluminum ACM housing is the
electronic circuitry of the ACM which includes a
microprocessor, an electronic impact sensor, an electromechanical safing sensor, and an energy storage
capacitor. A stamped metal cover plate is secured to
the bottom of the ACM housing with four screws to
enclose and protect the internal electronic circuitry
and components.
The ACM housing has integral mounting flanges
on each side. Two of the mounting flanges, one on
each side, have an integral locating pin on their
lower surface. The left flanges have round mounting
holes, while the flanges on the right side have slotted
mounting holes. An arrow cast into the top of the
ACM housing near the rear provides a visual verification of the proper orientation of the unit, and
should always be pointed toward the front of the
vehicle. A molded plastic electrical connector receptacle containing twenty-three terminal pins exits the
rearward facing side of the ACM housing. These terminal pins connect the ACM to the vehicle electrical
system through a dedicated take out and connector of
the instrument panel wire harness.
The impact sensor and safing sensor internal to
the ACM are calibrated for the specific vehicle, and
are only serviced as a unit with the ACM. The ACM
cannot be repaired or adjusted and, if damaged or
faulty, it must be replaced.
OPERATION
The microprocessor in the Airbag Control Module
(ACM) contains the front supplemental restraint system logic circuits and controls all of the front supplemental restraint system components. The ACM uses
On-Board Diagnostics (OBD) and can communicate
with other electronic modules in the vehicle as well
as with the DRBIIIt scan tool using the Programmable Communications Interface (PCI) data bus network. This method of communication is used for
control of the airbag indicator in the ElectroMechanical Instrument Cluster (EMIC) and for supplemental
restraint system diagnosis and testing through the
16-way data link connector located on the driver side
lower edge of the instrument panel. (Refer to 8 ELECTRICAL/INSTRUMENT CLUSTER/AIRBAG
INDICATOR - OPERATION).
The ACM microprocessor continuously monitors all
of the front supplemental restraint system electrical
circuits to determine the system readiness. If the
ACM detects a monitored system fault, it sets an
active and stored Diagnostic Trouble Code (DTC) and
sends electronic messages to the EMIC over the PCI
data bus to turn on the airbag indicator. An active
fault only remains for the duration of the fault, or in
some cases, the duration of the current ignition
switch cycle, while a stored fault causes a DTC to be
stored in memory by the ACM. For some DTCs, if a
fault does not recur for a number of ignition cycles,
the ACM will automatically erase the stored DTC.
For other internal faults, the stored DTC is latched
forever.
In standard cab models, the ACM also monitors a
resistor multiplexed input from the passenger airbag
on/off switch and provides a control output for the
Off indicator in the switch through a passenger airbag indicator driver circuit. If the passenger airbag
on/off switch is set to the Off position, the ACM turns
on the passenger airbag on/off switch Off indicator
and will internally disable the passenger airbag from
being deployed if an impact is detected that is sufficient for an airbag deployment. The ACM also turns
on the on/off switch Off indicator for about seven seconds each time the ignition switch is turned to the
On position as a bulb test. Following the bulb test,
the ACM controls the status of the Off indicator
based upon the resistance of the input from the on/off
switch. The ACM will also set and/or store a DTC for
faults it detects in the passenger airbag on/off switch
circuits, and will turn on the airbag indicator in the
EMIC if a fault has been detected.
DR RESTRAINTS 8O - 11
AIRBAG CONTROL MODULE (Continued)
On models equipped with optional side curtain airbags, the ACM communicates with both the left and
right Side Impact Airbag Control Modules (SIACM)
over the PCI data bus. The SIACM notifies the ACM
when it has detected a monitored system fault and
stored a DTC in memory for its respective side curtain airbag system, and the ACM sets a DTC and
controls the airbag indicator operation accordingly.
The ACM receives battery current through two circuits; a fused ignition switch output (run) circuit
through a fuse in the Integrated Power Module
(IPM), and a fused ignition switch output (run-start)
circuit through a second fuse in the IPM. The ACM
receives ground through a ground circuit and take
out of the instrument panel wire harness. This take
out has a single eyelet terminal connector that is
secured by a ground screw to the instrument panel
support structure. These connections allow the ACM
to be operational whenever the ignition switch is in
the Start or On positions. The ACM also contains an
energy-storage capacitor. When the ignition switch is
in the Start or On positions, this capacitor is continually being charged with enough electrical energy to
deploy the front supplemental restraint components
for up to one second following a battery disconnect or
failure. The purpose of the capacitor is to provide
backup supplemental restraint system protection in
case there is a loss of battery current supply to the
ACM during an impact.
Two sensors are contained within the ACM; an
electronic impact sensor, and a safing sensor. The
electronic impact sensor is an accelerometer that
senses the rate of vehicle deceleration, which provides verification of the direction and severity of an
impact. The safing sensor is an electromechanical
sensor within the ACM that provides an additional
logic input to the ACM microprocessor. The safing
sensor is a normally open switch that is used to verify the need for a front supplemental restraint
deployment by detecting impact energy of a lesser
magnitude than that of the electronic impact sensor,
and must be closed in order for the front airbags or
seat belt tensioners to deploy. A pre-programmed
decision algorithm in the ACM microprocessor determines when the deceleration rate as signaled by the
impact sensor and the safing sensor indicate an
impact that is severe enough to require front supplemental restraint system protection and, based upon
the status of the passenger airbag on/off switch input
and the severity of the monitored impact, determines
what combination of seat belt tensioner and front airbag deployment is required for each front seating
position. When the programmed conditions are met,
the ACM sends the proper electrical signals to deploy
the seat belt tensioners and dual front airbags.
The hard wired inputs and outputs for the ACM
may be diagnosed and tested using conventional
diagnostic tools and procedures. However, conventional diagnostic methods will not prove conclusive in
the diagnosis of the ACM, the PCI data bus network,
or the electronic message inputs to and outputs from
the ACM. The most reliable, efficient, and accurate
means to diagnose the ACM, the PCI data bus network, and the electronic message inputs to and outputs from the ACM requires the use of a DRBIIIt
scan tool. Refer to the appropriate diagnostic information.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,
PASSENGER AIRBAG, SEAT BELT TENSIONER,
SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE, THEN WAIT TWO MINUTES FOR
THE SYSTEM CAPACITOR TO DISCHARGE BEFORE
PERFORMING FURTHER DIAGNOSIS OR SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
WARNING: THE AIRBAG CONTROL MODULE CONTAINS THE IMPACT SENSOR, WHICH ENABLES
THE SYSTEM TO DEPLOY THE FRONT SUPPLEMENTAL RESTRAINTS. NEVER STRIKE OR DROP
THE AIRBAG CONTROL MODULE, AS IT CAN DAMAGE THE IMPACT SENSOR OR AFFECT ITS CALIBRATION. IF AN AIRBAG CONTROL MODULE IS
ACCIDENTALLY DROPPED DURING SERVICE, THE
MODULE MUST BE SCRAPPED AND REPLACED
WITH A NEW UNIT. FAILURE TO OBSERVE THIS
WARNING COULD RESULT IN ACCIDENTAL,
INCOMPLETE, OR IMPROPER FRONT SUPPLEMENTAL RESTRAINT DEPLOYMENT AND POSSIBLE
OCCUPANT INJURIES.
(1) Disconnect and isolate the battery negative
cable. Wait two minutes for the system capacitor to
discharge before further service.
(2) On models with a manual transmission,
remove the floor console from the top of the floor
panel transmission tunnel. (Refer to 23 - BODY/INTERIOR/FLOOR CONSOLE - REMOVAL).
(3) On models with an automatic transmission,
remove the ACM cover from the instrument panel.
8O - 12 RESTRAINTS DR
AIRBAG CONTROL MODULE (Continued)
(Refer to 8 - ELECTRICAL/RESTRAINTS/ACM
COVER - REMOVAL).
(4) Reach through the rearward facing opening
below the instrument panel center stack support
bracket on the top of the floor panel transmission
tunnel to access and disconnect the instrument panel
wire harness connector for the Airbag Control Module (ACM) from the ACM connector receptacle located
on the rearward facing side of the module (Fig. 8). To
disconnect the instrument panel wire harness connector from the ACM:
(a) Slide the red Connector Position Assurance
(CPA) lock on the top of the connector toward the
side of the connector.
(b) Depress the connector latch tab and pull the
connector straight away from the ACM connector
receptacle.
(7) Still working from the left side of the floor
panel transmission tunnel, lift the ACM upward far
enough to disengage the locating pins on the bottom
of the ACM mounting flanges from the locating holes
in the mounting bracket, then slide the ACM toward
the left far enough to disengage the slotted holes in
the right ACM mounting flanges from under the
heads of the two previously loosened right mounting
screws.
(8) Remove the ACM from the left side of the floor
panel transmission tunnel.
INSTALLATION
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,
PASSENGER AIRBAG, SEAT BELT TENSIONER,
SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE, THEN WAIT TWO MINUTES FOR
THE SYSTEM CAPACITOR TO DISCHARGE BEFORE
PERFORMING FURTHER DIAGNOSIS OR SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
Fig. 8 Airbag Control Module Remove/Install
1 - WIRE HARNESS CONNECTOR
2 - AIRBAG CONTROL MODULE
3 - SCREW (4)
4 - FLOOR PANEL TRANSMISSION TUNNEL
(5) From the right side of the floor panel transmission tunnel, loosen each of the two screws that secure
the right side of the ACM to the bracket on the floor
panel transmission tunnel about 7 millimeters (0.25
inch).
(6) From the left side of the floor panel transmission tunnel, remove the two screws that secure the
left side of the ACM to the bracket on the floor panel
transmission tunnel.
WARNING: THE AIRBAG CONTROL MODULE CONTAINS THE IMPACT SENSOR, WHICH ENABLES
THE SYSTEM TO DEPLOY THE FRONT SUPPLEMENTAL RESTRAINTS. NEVER STRIKE OR DROP
THE AIRBAG CONTROL MODULE, AS IT CAN DAMAGE THE IMPACT SENSOR OR AFFECT ITS CALIBRATION. IF AN AIRBAG CONTROL MODULE IS
ACCIDENTALLY DROPPED DURING SERVICE, THE
MODULE MUST BE SCRAPPED AND REPLACED
WITH A NEW UNIT. FAILURE TO OBSERVE THIS
WARNING COULD RESULT IN ACCIDENTAL,
INCOMPLETE, OR IMPROPER FRONT SUPPLEMENTAL RESTRAINT DEPLOYMENT AND POSSIBLE
OCCUPANT INJURIES.
(1) Position the Airbag Control Module (ACM) to
the left side of the floor panel transmission tunnel
near the ACM bracket (Fig. 8). When the ACM is correctly positioned, the arrow on the ACM housing will
be pointed forward in the vehicle.
(2) From the left side of the floor panel transmission tunnel, slide the ACM toward the right far
enough to engage the slotted holes in the right ACM
mounting flanges under the heads of the two previously loosened right mounting screws, then engage
DR RESTRAINTS 8O - 13
AIRBAG CONTROL MODULE (Continued)
the locating pins on the bottom of the ACM mounting
flanges into the locating holes in the bracket.
(3) Still working from the left side of the floor
panel transmission tunnel, install and tighten the
two screws that secure the left ACM mounting
flanges to the bracket that is welded onto the floor
panel transmission tunnel. Tighten the screws to 14
N·m (10 ft. lbs.).
(4) From the right side of the floor panel transmission tunnel, tighten each of the two screws that
secure the right side of the ACM to the bracket on
the floor panel transmission tunnel. Tighten the
screws to 14 N·m (10 ft. lbs.).
(5) Reach through the rearward facing opening
below the instrument panel center stack support
bracket on the top of the floor panel transmission
tunnel to access and reconnect the instrument panel
wire harness connector for the ACM to the ACM connector receptacle located on the rearward facing side
of the module. Be certain that the latch and the red
Connector Position Assurance (CPA) lock on the connector are each fully engaged.
(6) On models with an automatic transmission,
reinstall the ACM cover onto the instrument panel.
(Refer to 8 - ELECTRICAL/RESTRAINTS/ACM
COVER - INSTALLATION).
(7) On models with a manual transmission, reinstall the floor console onto the top of the floor panel
transmission tunnel. (Refer to 23 - BODY/INTERIOR/FLOOR CONSOLE - INSTALLATION).
(8) Do not reconnect the battery negative cable at
this time. The supplemental restraint system verification test procedure should be performed following
service of any supplemental restraint system component. (Refer to 8 - ELECTRICAL/RESTRAINTS STANDARD PROCEDURE - VERIFICATION TEST).
AUTOMATIC LOCKING
RETRACTOR
DESCRIPTION
Fig. 9 Automatic Locking Retractor
1 - TENSIONER HOUSING OR CHAMBER
2 - GAS GENERATOR
3 - TENSIONER PIGTAIL WIRE
4 - SPOOL
5 - TENSION REDUCER (DRIVER SIDE ON STANDARD CAB
ONLY)
6 - REDUCER CONNECTOR RECEPTACLE
7 - RETRACTOR LOCKING MECHANISM COVER
The seat belt retractors used in all seating positions include an inertia-type, emergency locking
mechanism as standard equipment (Fig. 9). However,
the retractor locking mechanism for the passenger
side front seating position is mechanically switchable
from an emergency locking retractor to an automatic
locking retractor. The primary function of this feature is to securely accommodate a child seat in the
passenger side front seating position of the vehicle
without the need for a self-cinching seat belt tip half
latch plate unit or another supplemental device that
would be required to prevent the seat belt webbing
from unwinding freely from the retractor spool of an
inertia-type emergency locking retractor mechanism.
The automatic locking mechanism is integral to the
passenger side front seat belt and retractor unit and
is concealed beneath a molded plastic cover located
on the same side of the retractor spool as the seat
belt tensioner housing. The retractor is secured to
the inner B-pillar on the right side of the vehicle and
is concealed beneath the molded plastic inner B-pillar trim. The automatic locking mechanism cannot be
adjusted or repaired and, if faulty or damaged, the
entire passenger side front seat belt and retractor
unit must be replaced.
8O - 14 RESTRAINTS DR
AUTOMATIC LOCKING RETRACTOR (Continued)
OPERATION
The automatic locking mode of the retractor is
engaged and the retractor is switched from operating
as a standard inertia-type emergency locking retractor by first buckling the combination lap and shoulder belt buckle. Then grasp the shoulder belt and
pull all of the webbing out of the retractor. Once all
of the belt webbing is extracted from the spool, the
retractor will automatically become engaged in the
pre-locked automatic locking mode and will make an
audible clicking or ratcheting sound as the shoulder
belt is allowed to retract to confirm that the automatic locking mode is now engaged. Once the automatic locking mode is engaged, the retractor will
remain locked and the belt will remain tight around
whatever it is restraining.
CHILD RESTRAINT ANCHOR
DESCRIPTION
The retractor is returned to standard emergency
locking mode by unbuckling the combination lap and
shoulder belt buckle and allowing the belt webbing to
be almost fully retracted onto the retractor spool. The
emergency locking mode is confirmed by the absence
of the audible clicking or ratcheting sound as the belt
webbing retracts. This mode will allow the belt to
unwind from and wind onto the retractor spool freely
unless and until a predetermined inertia load is
sensed, or until the retractor is again switched to the
automatic locking mode.
Fig. 10 Child Restraint Anchor Location - Standard Cab
1 - LOWERANCHOR (PROVIDED FOR OUTBOARD SEATING
POSITION ONLY)
2 - TETHER ANCHOR (PROVIDED FOR CENTER AND
OUTBOARD SEATING POSITIONS)
DR RESTRAINTS 8O - 15
CHILD RESTRAINT ANCHOR (Continued)
Fig. 11 Child Restraint Anchor Location - Quad Cab
1 - LOWERANCHOR (PROVIDED FOR REAR OUTBOARD
SEATING POSITIONS ONLY)
This model is equipped with a Lower Anchors and
Tether for CHildren, or LATCH child restraint
anchorage system (Fig. 10) or (Fig. 11). The LATCH
system provides for the installation of suitable child
restraints in certain seating positions without using
the standard equipment seat belt provided for that
seating position. Standard cab models are equipped
with a fixed-position child restraint upper tether
anchor for the front center and outboard seating positions, and child restraint lower anchors for the front
outboard seating position. Quad cab models are
equipped with a fixed-position child restraint upper
tether anchor strap for the rear center and both rear
outboard seating positions, and child restraint lower
anchors for both rear outboard seating positions. All
front seat child restraint anchors are deleted on quad
cab models.
The two upper tether anchors for standard cab
models are integral to the upper cab back panel reinforcement and are concealed behind individual trim
cover and bezel units that are integral to the cab
back trim panel (Fig. 12). These upper tether anchors
cannot be adjusted or repaired and, if faulty or damaged, they must be replaced as a unit with the upper
cab back panel reinforcement. The upper tether
anchor trim covers and bezels are serviced as a unit
with the cab back trim panel.
The three upper tether anchor straps for quad cab
models are secured to the upper cab back panel reinforcement with screws (Fig. 13). These anchor straps
are concealed behind the upright rear seat back. The
2 - TETHER ANCHOR (PROVIDED FOR REAR CENTER AND
OUTBOARD SEATING POSITIONS)
Fig. 12 Child Tether Anchor - Standard Cab
1 - COVER & BEZEL (2)
2 - CAB BACK TRIM PANEL
3 - ANCHOR (2)
upper tether anchor straps are available for individual service replacement.
The lower anchors for all models are integral to
their respective front or rear seat cushion frame (Fig.
14) or (Fig. 15). Round markers with an imprinted
child seat icon on the standard cab front seat back
trim cover helps identify the anchor locations for that
application because they may be otherwise difficult to
see with the seat back in the upright position. These
lower anchors are each constructed from round steel
8O - 16 RESTRAINTS DR
CHILD RESTRAINT ANCHOR (Continued)
Fig. 13 Child Tether Strap - Quad Cab
1 - TETHER STRAP (3)
2 - CAB BACK PANEL
3 - SCREW (3)
bar stock that is formed into a U-shape, then
securely welded at each end to the seat cushion
frame. They are each accessed from the front of their
respective seats, at each side where the seat back
meets the seat cushion. These lower anchors cannot
be adjusted or repaired and, if faulty or damaged,
they must be replaced as a unit with the seat cushion frame. On quad cab models, if the lower anchors
have been bent or broken as a result of a vehicle collision, the latch for the affected rear seat cushion
frame unit must also be replaced.
Fig. 15 Child Restraint Lower Anchor - Quad Cab
Rear Seat
1 - REAR SEAT BACK
2 - LOWERANCHOR (2 PER OUTBOARD REAR SEATING
POSITION)
3 - REAR SEAT CUSHION
WARNING: DURING AND FOLLOWING ANY SEAT
BELT OR CHILD RESTRAINT ANCHOR SERVICE,
CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES,
MOUNTING HARDWARE, RETRACTORS, TETHER
STRAPS, AND ANCHORS FOR PROPER INSTALLATION, OPERATION, OR DAMAGE. REPLACE ANY
BELT THAT IS CUT, FRAYED, OR TORN.
STRAIGHTEN ANY BELT THAT IS TWISTED.
TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY
BELT THAT HAS A DAMAGED OR INOPERATIVE
BUCKLE OR RETRACTOR. REPLACE ANY BELT
THAT HAS A BENT OR DAMAGED LATCH PLATE
OR ANCHOR PLATE. REPLACE ANY CHILD
RESTRAINT ANCHOR OR THE UNIT TO WHICH THE
ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR
DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT
BELT OR CHILD RESTRAINT COMPONENT.
ALWAYS REPLACE DAMAGED OR FAULTY SEAT
BELT AND CHILD RESTRAINT COMPONENTS WITH
THE CORRECT, NEW AND UNUSED REPLACEMENT
PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR
PARTS CATALOG.
Fig. 14 Child Restraint Lower Anchor - Standard
Cab Front Seat
1 - FRONT SEAT BACK
2 - LOWERANCHOR (2) - PASSENGER SIDE OUTBOARD
SEATING POSITION ONLY
3 - LOWERANCHOR MARKER (2)
4 - FRONT SEAT CUSHION
OPERATION
See the owner’s manual in the vehicle glove box for
more information on the proper use of all of the factory-installed child restraint anchors.
REMOVAL
The following procedure applies only to the rear
seat upper child tether straps used on quad cab models. The child restraint anchors used in other models
and locations are integral to other components and
cannot be serviced separately.
DR RESTRAINTS 8O - 17
CHILD RESTRAINT ANCHOR (Continued)
WARNING: DURING AND FOLLOWING ANY SEAT
BELT OR CHILD RESTRAINT ANCHOR SERVICE,
CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES,
MOUNTING HARDWARE, RETRACTORS, TETHER
STRAPS, AND ANCHORS FOR PROPER INSTALLATION, OPERATION, OR DAMAGE. REPLACE ANY
BELT THAT IS CUT, FRAYED, OR TORN.
STRAIGHTEN ANY BELT THAT IS TWISTED.
TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY
BELT THAT HAS A DAMAGED OR INOPERATIVE
BUCKLE OR RETRACTOR. REPLACE ANY BELT
THAT HAS A BENT OR DAMAGED LATCH PLATE
OR ANCHOR PLATE. REPLACE ANY CHILD
RESTRAINT ANCHOR OR THE UNIT TO WHICH THE
ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR
DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT
BELT OR CHILD RESTRAINT COMPONENT.
ALWAYS REPLACE DAMAGED OR FAULTY SEAT
BELT AND CHILD RESTRAINT COMPONENTS WITH
THE CORRECT, NEW AND UNUSED REPLACEMENT
PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR
PARTS CATALOG.
(1) Remove the rear seat from the vehicle. (Refer
to 23 - BODY/SEATS/SEAT - REAR - REMOVAL).
(2) Remove the screw that secures the child tether
strap to the upper cab back panel reinforcement (Fig.
16).
(3) Remove the child tether strap from the upper
cab back panel reinforcement.
INSTALLATION
The following procedure applies only to the rear
seat upper child tether straps used on quad cab models. The child restraint anchors used in other models
and locations are integral to other components and
cannot be serviced separately.
WARNING: DURING AND FOLLOWING ANY SEAT
BELT OR CHILD RESTRAINT ANCHOR SERVICE,
CAREFULLY INSPECT ALL SEAT BELTS, BUCKLES,
MOUNTING HARDWARE, RETRACTORS, TETHER
STRAPS, AND ANCHORS FOR PROPER INSTALLATION, OPERATION, OR DAMAGE. REPLACE ANY
BELT THAT IS CUT, FRAYED, OR TORN.
1 - TETHER STRAP (3)
2 - CAB BACK PANEL
3 - SCREW (3)
STRAIGHTEN ANY BELT THAT IS TWISTED.
TIGHTEN ANY LOOSE FASTENERS. REPLACE ANY
BELT THAT HAS A DAMAGED OR INOPERATIVE
BUCKLE OR RETRACTOR. REPLACE ANY BELT
THAT HAS A BENT OR DAMAGED LATCH PLATE
OR ANCHOR PLATE. REPLACE ANY CHILD
RESTRAINT ANCHOR OR THE UNIT TO WHICH THE
ANCHOR IS INTEGRAL THAT HAS BEEN BENT OR
DAMAGED. NEVER ATTEMPT TO REPAIR A SEAT
BELT OR CHILD RESTRAINT COMPONENT.
ALWAYS REPLACE DAMAGED OR FAULTY SEAT
BELT AND CHILD RESTRAINT COMPONENTS WITH
THE CORRECT, NEW AND UNUSED REPLACEMENT
PARTS LISTED IN THE DAIMLERCHRYSLER MOPAR
PARTS CATALOG.
cab back panel reinforcement (Fig. 16).
child tether strap to the upper cab back panel rein-
forcement. Tighten the screw to 14 N·m (10 ft. lbs.).
to 23 - BODY/SEATS/SEAT - REAR - INSTALLA-
TION).
Fig. 16 Child Tether Strap - Quad Cab
(1) Position the child tether strap onto the upper
(2) Install and tighten the screw that secures the
(3) Reinstall the rear seat into the vehicle. (Refer
8O - 18 RESTRAINTS DR
CLOCKSPRING
DESCRIPTION
Fig. 18 Turn Signal Cancel Cam
1 - LOCKING PIN
2 - CLOCKSPRING CASE
3 - CANCEL CAM
Fig. 17 Clockspring
1 - PIGTAIL WIRE
2 - LOCATING TAB
3 - LOCKING PIN
4 - MOUNTING TAB (2)
5 - UPPER CONNECTOR RECEPTACLE (2)
6 - LABEL
7 - ENGAGEMENT DOWEL & BOOT
8 - CASE
9 - CENTERINGARROWS
10 - ROTOR
The clockspring assembly is secured with two
screws onto the multi-function switch mounting
housing near the top of the steering column behind
the steering wheel (Fig. 17). The clockspring consists
of a flat, round molded plastic case with a stubby tail
that hangs below the steering column (Fig. 18). The
tail contains two connector receptacles that face
toward the instrument panel. Within the plastic case
is a spool-like molded plastic rotor with a large
exposed hub. The upper surface of the rotor hub has
a large center hole, two large flats, an engagement
dowel with a yellow rubber boot, a short pigtail wire
with connector, and two connector receptacles that
face toward the steering wheel.
The lower surface of the rotor hub has a molded
plastic turn signal cancel cam with two lobes that is
keyed to the rotor and is secured there with four
integral snap features. Within the plastic case and
wound around the rotor spool is a long ribbon-like
tape that consists of several thin copper wire leads
sandwiched between two thin plastic membranes.
The outer end of the tape terminates at the connector
receptacles that face the instrument panel, while the
inner end of the tape terminates at the pigtail wire
and connector receptacles on the hub of the clockspring rotor that face the steering wheel.
4 - LOWER CONNECTOR RECEPTACLE (2)
Service replacement clocksprings are shipped precentered and with a molded plastic locking pin that
snaps into a receptacle on the rotor and is engaged
between two tabs on the upper surface of the rotor
case. The locking pin secures the centered clockspring rotor to the clockspring case during shipment,
but the locking pin must be removed from the clockspring after it is installed on the steering column.
(Refer to 8 - ELECTRICAL/RESTRAINTS/CLOCKSPRING - STANDARD PROCEDURE - CLOCKSPRING CENTERING).
The clockspring cannot be repaired. If the clockspring is faulty, damaged, or if the driver airbag has
been deployed, the clockspring must be replaced.
OPERATION
The clockspring is a mechanical electrical circuit
component that is used to provide continuous electrical continuity between the fixed instrument panel
wire harness and the electrical components mounted
on or in the rotating steering wheel. On this model
the rotating electrical components include the driver
airbag, the horn switch, the speed control switches,
and the remote radio switches, if the vehicle is so
equipped. The clockspring case is positioned and
secured to the multi-function switch mounting housing near the top of the steering column. The connector receptacles on the tail of the fixed clockspring
case connect the clockspring to the vehicle electrical
system through two take outs with connectors from
the instrument panel wire harness.
The clockspring rotor is movable and is keyed by
an engagement dowel that is molded onto the rotor
hub between two fins that are cast into the lower
surface of the steering wheel armature. A yellow rub-
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