Chrysler Voyager. Manual — part 144

3.1.1

DRIVER AIRBAG

The airbag protective trim cover is the most

visible part of the driver side airbag system. The
protective trim cover is fitted to the front of the
airbag module and forms a decorative cover in the
center of the steering wheel. The module is
mounted directly to the steering wheel. Located
under the trim cover are the horn switch, the airbag
cushion, and the airbag cushion supporting compo-
nents. The airbag module includes a housing to
which the cushion and hybrid inflator are attached
and sealed. The Minivan is equipped with driver
airbag with dual stage inflators that include a small
canister of highly compressed argon gas. The ACM
uses vehicle crash severity, seat belt switch status
(buckled or unbuckled) as inputs to determine the
level of airbag deployment. When supplied with the
proper electrical signal, the hybrid inflator or infla-
tors discharge the compressed gas it contains di-
rectly into the cushion. The airbag cannot be re-
paired, and must be replaced if deployed or in any
way damaged.

WARNING: THE DRIVER AIRBAG MODULE
CONTAINS ARGON GAS PRESSURIZED TO
OVER 17236.89 Kpa (2500 PSI). DO NOT
ATTEMPT

TO

DISMANTLE

AN

AIRBAG

MODULE OR TAMPER WITH ITS INFLATOR.
DO

NOT

PUNCTURE,

INCINERATE,

OR

BRING INTO CONTACT WITH ELECTRICITY.
DO

NOT

STORE

AT

TEMPERATURE

EXCEEDING 93°C (200°F). REPLACE AIRBAG
SYSTEM

COMPONENTS

ONLY

BUT

INTERNAL DIFFERENCES MAY RESULT IN
INFERIOR OCCUPANT PROTECTION. THE
FASTENERS,

SCREWS,

AND

BOLTS

ORIGINALLY

USED

FOR

THE

AIRBAG

SYSTEM

COMPONENTS

HAVE

SPECIAL

COATINGS

AND

ARE

SPECIFICALLY

DESIGNED FOR THE AIRBAG SYSTEM. THEY
MUST NEVER BE REPLACED WITH ANY
SUBSTITUTES. ANY TIME A NEW FASTENER
IS

NEEDED,

REPLACE

IT

WITH

THE

CORRECT FASTENERS PROVIDED IN THE
SERVICE PACKAGE OR SPECIFIED IN THE
MOPAR PARTS CATALOG.

3.1.2

CLOCKSPRING

The clockspring is mounted on the steering col-

umn behind the steering wheel. This assembly
consist of a plastic housing which contains a flat,
ribbon-like, electrically conductive tape that winds
and unwinds with the steering wheel rotation. The
clockspring is used to maintain a continuous elec-
trical circuit between the instrument panel wiring
and the driver airbag, the horn, and the vehicle
speed control switches if equipped. The clockspring
must be properly centered when it is reinstalled on
the steering column following any service proce-
dure, or it could be damaged. The clockspring can-
not be repaired and it must be replaced.

3

GENERAL INFORMATION

CAUTION: Deployed Front Air Bags may or may not have live pyrotechnic material within the
air bag inflator. Do not dispose of 2003 Model Year Driver and Passenger Airbags unless you
are sure of complete deployment. Please refer to the Hazardous Substance Control System for
Proper Disposal. Dispose of deployed air bags in a manner consistent with state, provincial,
local, and federal regulations. Use the following table to identify the status of the Airbag Squib.

AIRBAG SQUIB STATUS

(1) Using a DRBIII

t read Airbag DTC’s If the following active codes are present:

ACTIVE DTC

CONDITIONS

SQUIB STATUS

Driver Squib 1 open
Driver Squib 2 open

Check the stored DTC’s AND IF the stored min-
utes for both are within 15 minutes of each other.

Both Driver Squib 1
and 2 were used.

Driver Squib 1 open
Driver Squib 2 open

Check the stored DTC’s AND IF the stored min-
utes for Driver Squib 2 open is GREATER than
the stored minutes for Driver Squib 1 by 15 min-
utes or more.

Driver Squib 1 was
used;
Driver Squib 2 is live.

Driver Squib 1 open
Driver Squib 2 open

Check the stored DTC’s AND IF the stored min-
utes for Driver Squib 1 open is GREATER than
the stored minutes for Driver Squib 2 by 15 min-
utes or more.

Driver Squib 1 is live;
Driver Squib 2 was
used.

If Driver Squib 1 open

AND IF Driver Squib 2 opens is NOT an active
code.

Driver Squib 1 was
used;
Driver Squib 2 is live.

If Driver Squib 2 open

AND IF Driver Squib 1 open is NOT an active
code.

Driver Squib 1 is live;
Driver Squib 2 was
used.

If neither of the following codes is an active code:

ACTIVE DTC

SQUIB STATUS

Driver squib 1 open

Status of Airbag is
Unknown

Driver Squib 2 open

3.1.3

PASSENGER AIRBAG

The airbag insignia in the instrument panel top

cover above the glove box is the most visible part of
the passenger side airbag system. The airbag door
has a living hinge at the top, which is secured to the
instrument panel top cover. Located under the
airbag door is the airbag cushion and its supporting
components. The airbag module includes a housing
to which the cushion and hybrid inflators are at-
tached and sealed. The 2003 Minivan is equipped
with front passenger airbag with dual stage infla-
tors that include a small canister of highly com-
pressed argon gas. The ACM uses vehicle crash
severity, front passenger seat belt switch status
(buckled or unbuckled) inputs to determine the
level of airbag deployment. When supplied with the
proper electrical signal, the hybrid inflator or infla-
tors discharge the compressed gas it contains di-
rectly into the cushion. The airbag cannot be re-
paired, and must be replaced if deployed or in any
way damaged.

WARNING:

THE

PASSENGER

AIRBAG

MODULE

CONTAINS

ARGON

GAS

PRESSURIZED TO 17236.89 Kpa (2500 PSI).
DO

NOT ATTEMPT

TO

DISMANTLE AN

AIRBAG MODULE OR TAMPER WITH ITS
INFLATOR.

DO

NOT

PUNCTURE,

INCINERATE, OR BRING INTO CONTACT
WITH ELECTRICITY. DO NOT STORE AT
TEMPERATURE EXCEEDING 93°C (200°F).
REPLACE AIRBAG SYSTEM COMPONENTS
ONLY

WITH

PARTS

SPECIFIED

IN

THE

MOPAR

PARTS

CATALOG.

SUBSTITUTE

PARTS MAY APPEAR INTERCHANGEABLE,
BUT INTERNAL DIFFERENCES MAY RESULT
IN INFERIOR OCCUPANT PROTECTION. THE
FASTENERS,

SCREWS,

AND

BOLTS

ORIGINALLY

USED

FOR

THE

AIRBAG

SYSTEM

COMPONENTS

HAVE

SPECIAL

COATINGS

AND

ARE

SPECIFICALLY

DESIGNED FOR THE AIRBAG SYSTEM. THEY
MUST NEVER BE REPLACED WITH ANY
SUBSTITUTES. ANY TIME A NEW FASTENER
IS

NEEDED,

REPLACE

IT

WITH

THE

CORRECT FASTENERS PROVIDED IN THE
SERVICE PACKAGE OR SPECIFIED IN THE
MOPAR PARTS CATALOG.

4

GENERAL INFORMATION

CAUTION: Deployed Front Air Bags may or may not have live pyrotechnic material within the
air bag inflator. Do not dispose of 2003 Mopar Year Driver and Passenger Airbags unless you
are sure of complete deployment. Please refer to the Hazardous Substance Control System for
Proper Disposal. Dispose of deployed air bags in a manner consistent with state, provincial,
local, and federal regulations. Use the following table to identify the status of the Airbag Squib.

AIRBAG SQUIB STATUS

(1) Using a DRBIII

t read Airbag DTC’s If the following active codes are present:

ACTIVE DTC

CONDITIONS

SQUIB STATUS

Passenger Squib 1 open
Passenger Squib 2 open

Check the stored DTC’s AND IF the stored min-
utes for both are within 15 minutes of each other.

Both Passenger Squib 1
and 2 were used.

Passenger Squib 1 open
Passenger Squib 2 open

Check the stored DTC’s AND IF the stored min-
utes for Passenger Squib 2 open is GREATER
than the stored minutes for Passenger Squib 1 by
15 minutes or more.

Passenger Squib 1 was
used; Passenger Squib
2 is live.

Passenger Squib 1 open
Passenger Squib 2 open

Check the stored DTC’s AND IF the stored min-
utes for Passenger Squib 1 open is GREATER
than the stored minutes for Driver Squib 2 by 15
minutes or more.

Passenger Squib 1 is
live; Driver Squib 2
was used.

If Passenger Squib 1
open

AND IF Passenger Squib 2 open is NOT an ac-
tive code.

Passenger Squib 1 was
used; Passenger Squib
2 is live.

If Passenger Squib 2
open

AND IF Passenger Squib 1 open is NOT an ac-
tive code.

Passenger Squib 1 is
live; Passenger Squib 2
was used.

If neither of the following codes is an active code:

ACTIVE DTC

SQUIB STATUS

Passenger squib 1 open

Status of Airbag is
Unknown

Passenger squib 2 open

3.1.4

SEAT BELT TENSIONER (SBT)

The driver and passenger seat belt (buckle) ten-

sioners are mounted to the inboard side of the front
seats. The seat belt buckle and seat belt switch are
connected directly to the seat belt tensioner cable.
At the onset of an impact event the ACM uses the
seat belt tensioner to rapidly retract the seat belt
buckles. With the slack removed, the occupant’s
forward motion in an impact will be reduced as will
the likelihood of contacting interior components.
The seat belt tensioner cannot be removed, the
occupant’s forward motion in an impact will be
reduced as will the likelihood of contacting re-
paired, if damaged or defective it must be replaced.
The ACM continuously monitors the resistance of
the seat belt tensioner circuits an open or shorted
conditions.

3.1.5

SEAT BELT SWITCHES (SBS)

The hall-effect driver and front passenger seat

belt switches provide the seat belt status, buckled

or unbuckled, via hardwired inputs to the ACM. If
the seat belt switches are damaged or defective the
seat belt tensioner must be replaced. The ACM
continuously monitors the seat belt switch circuits
for an open or shorted conditions.

3.1.6

SIDE IMPACT AIRBAG CONTROL
MODULE (SIACM)

Supplemental driver and front passenger seat

airbags provide side impact protection for the front
seat occupants. Each side airbag has it own side
impact airbag control module (SIACM) to provide
independent impact sensing and deployment. SI-
ACM are located on the left and right B post just
above the seat belt retractor. Both the left and right
side impact airbag control modules (SIACM) use
the same part number. However, for proper PCI bus
operation each SIACM must have a unique module
identification. To provide the unique module iden-
tification for both, left and right, the SIACM soft-
ware looks for a ground on cavity 5 of the SIACM
connector. If cavity 5 is grounded the SIACM com-
municates as a left SIACM otherwise it communi-
cates as a right SIACM. The SIACM performs self
diagnostics and circuit tests to determine if the
system is functioning properly. If the test finds a
problem the SIACM will set both active and stored
diagnostic trouble codes. If a DTC is active the

5

GENERAL INFORMATION

SIACM will request that the airbag warning lamp
be turned on. The results of the system test are
transmitted on the PCI Bus to the ACM once each
second or on change in lamp state. If the warning
lamp status message from the either SIACM con-
tains a lamp on request, the ACM will set an active
DTC. At the same time as the DTC is set the ACM
sends a PCI Bus message to the mechanical instru-
ment cluster (MIC) requesting the airbag warning
lamp be turned on. Observe all ACM warning and
caution statements when servicing or handling the
SIACM. SIACM are not repairable and must be
replaced if they are dropped.

WARNING:

THE AIRBAG

SYSTEM

IS A

SENSITIVE,

COMPLEX

ELECTRO-

MECHANICAL UNIT. BEFORE ATTEMPTING
TO DIAGNOSE OR SERVICE ANY AIRBAG
SYSTEM OR RELATED STEERING WHEEL,
STEERING

COLUMN,

OR

INSTRUMENT

PANEL COMPONENTS YOU MUST FIRST
DISCONNECT AND ISOLATE THE BATTERY
NEGATIVE (GROUND) CABLE. WAIT TWO
MINUTES FOR THE SYSTEM CAPACITOR TO
DISCHARGE BEFORE FURTHER SYSTEM
SERVICE. THIS IS THE ONLY SURE WAY TO
DISABLE THE AIRBAG SYSTEM. FAILURE
TO DO THIS COULD RESULT IN ACCIDENTAL
AIRBAG

DEPLOYMENT

AND

POSSIBLE

PERSONAL INJURY. NEVER STRIKE OR
KICK 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.

The airbag warning lamp is the only point at

which the customer can observe symptoms of a
system malfunction. Whenever the ignition key is
turned to the run or start position, the MIC per-
forms a lamp check by turning the airbag warning
indicator on for 6-8 seconds. After the lamp check, if
the indicator turns on, it means that the ACM has
checked the system and found it to be free of
discernible malfunctions. If the lamp remains on,
there could be an active fault in the system or the
MIC lamp circuit may be internally shorted to
ground. If the lamp comes on and stays on for a
period longer than 6-8 seconds then goes off, there
is usually an intermittent problem in the system.

3.1.7

SEAT AIRBAGS (SAB)

The left and right seat airbags are located in the

outboard end of the front seat backs. The airbag

module contains a bag, an inflator (a small canister
of highly compressed argon gas) and a mounting
bracket. The seat airbags cannot be repaired and
must be replaced if deployed or in any way dam-
aged. When supplied with the proper electrical
signal the inflator seals the hole in the airbag
cushion so it can discharge the compressed gas it
contains directly into the cushion. Upon deploy-
ment, the seat back trim cover will tear open and
allow the seat airbag to fully deploy between the
seat and the door.

WARNING: SEAT AIRBAG CONTAINS ARGON
GAS PRESSURIZED TO OVER 17236.89 Kpa
(2500

PSI).

DO

NOT

ATTEMPT

TO

DISMANTLE

AN

AIRBAG

MODULE

OR

TAMPER WITH ITS INFLATOR. DO NOT
PUNCTURE, INCINERATE, OR BRING INTO
CONTACT

WITH

ELECTRICITY.

DO

NOT

STORE AT TEMPERATURE EXCEEDING 93°C
(200°F).

REPLACE

AIRBAG

SYSTEM

COMPONENTS

ONLY

WITH

PARTS

SPECIFIED

IN

THE

CHRYSLER

MOPAR

PARTS CATALOG. SUBSTITUTE PARTS MAY
APPEAR

INTERCHANGEABLE,

BUT

INTERNAL DIFFERENCES MAY RESULT IN
INFERIOR OCCUPANT PROTECTION. THE
FASTENERS,

SCREWS,

AND

BOLTS

ORIGINALLY

USED

FOR

THE

AIRBAG

SYSTEM

COMPONENTS

HAVE

SPECIAL

COATINGS

AND

ARE

SPECIFICALLY

DESIGNED FOR THE AIRBAG SYSTEM. THEY
MUST NEVER BE REPLACED WITH ANY
SUBSTITUTES. ANY TIME A NEW FASTENER
IS

NEEDED,

REPLACE

IT

WITH

THE

CORRECT FASTENERS PROVIDED IN THE
SERVICE PACKAGE OR SPECIFIED IN THE
MOPAR PARTS CATALOG.

3.1.8

DIAGNOSTIC TROUBLE CODES

Airbag diagnostic trouble codes consist of active

and stored codes. If more than one code exists,
diagnostic priority should be given to the active
codes. Each diagnostic trouble code is diagnosed by
following a specific testing procedure. The diagnos-
tic test procedures contain step-by-step manuals
for determining the cause of the trouble codes. It is
not necessary to perform all of the tests in this book
to diagnose an individual code. Always begin by
reading the diagnostic trouble codes using the
DRBIII

t. Always begin diagnostic with the Table of

Contents section 7.0. This will direct you to the
specific test(s) that must be performed. Active diag-
nostic trouble codes for the airbag system are not
permanent and will change the moment the reason

6

GENERAL INFORMATION