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Dodge Ram Truck 1500-2500-3500. Manual - part 562

1. Adjust the front seat to its most forward position for

easiest access to the B-pillar trim.

2. Disconnect and isolate the battery negative cable.

Wait two minutes for the system capacitor to dis-
charge before further service.

3. Remove the nut (3) that secures the stud of the

side impact sensor (2) to the inner B-pillar (1).

4. Reach through the large hole above the retractor

mounting hole in the inner B-pillar to access the
side impact sensor and disengage the anti-rotation
pin and mounting stud from the holes in the inner
B-pillar.

5. Pull the side impact sensor out through the large

hole in the B-pillar far enough to access and dis-
connect the body wire harness connector (4) from
the sensor connector receptacle.

6. Remove the side impact sensor from the B-pillar.

INSTALLATION

STANDARD CAB

WARNING: To avoid personal injury or death, on vehicles equipped with airbags, disable the supplemental
restraint system before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact
sensor, 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 diag-
nosis 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.

WARNING: To avoid personal injury or death, never strike or drop the side impact sensor, as it can damage
the impact sensor or affect its calibration. The side impact sensor enables the system to deploy the side
curtain airbags. If an impact sensor is accidentally dropped during service, the sensor must be scrapped
and replaced with a new unit. Failure to observe this warning could result in accidental, incomplete, or
improper supplemental restraint deployment.

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1. Position the side impact sensor (1) to the retractor

mounting hole (3) in the inner B-pillar.

2. Reconnect the body wire harness connector (2) to

the sensor connector receptacle.

3. Reach through the retractor mounting hole in the

inner B-pillar to position and engage the anti-rota-
tion pin and the stud on the side impact sensor to
the locating slot and mounting hole from the inside
of the B-pillar.

4. Install and tighten the nut (4) that secures the side

impact sensor stud to the inner B-pillar. Tighten the
nut to 8 N·m (70 in. lbs.).

5. Reinstall the front outboard seat belt and retractor

to the inside of the B-pillar. (Refer to 8 - ELECTRI-
CAL/RESTRAINTS/FRONT

OUTBOARD

SEAT

BELT & RETRACTOR - INSTALLATION - STAN-
DARD CAB).

6. Do not reconnect the battery negative cable at this

time. The supplemental restraint system verification
test procedure should be performed following ser-
vice of any supplemental restraint system compo-
nent. (Refer to 8 - ELECTRICAL/RESTRAINTS - STANDARD PROCEDURE - VERIFICATION TEST).

QUAD CAB

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RESTRAINTS - SERVICE INFORMATION

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1. Position the side impact sensor (2) to the large

hole above the retractor mounting hole in the inner
B-pillar (1).

2. Reconnect the body wire harness connector (4) to

the sensor connector receptacle.

3. Reach through the large hole above the retractor

mounting hole in the inner B-pillar to position and
engage the anti-rotation pin and the stud on the
side impact sensor to the locating slot and mount-
ing hole from the inside of the B-pillar.

4. Install and tighten the nut (3) that secures the side

impact sensor stud to the inner B-pillar. Tighten the
nut to 8 N·m (70 in. lbs.).

5. Do not reconnect the battery negative cable at this

PROCEDURE

VERIFICATION

TEST).

SWITCH-PASSENGER AIRBAG DISARM

DESCRIPTION

The passenger airbag on/off switch (1) is standard
equipment on all standard cab versions of this model
when they are equipped with the dual front airbag sys-
tem. This switch is a two-position, resistor multiplexed
switch with a single integral red Light-Emitting Diode
(LED), and a non-coded key cylinder-type actuator.
The switch is located in the lower right corner of
instrument panel center bezel, near the center of
instrument panel to make the Off indicator (3) visible
to all front seat occupants.

When the switch is in its installed position, the only
components visible through the dedicated opening of
the cluster bezel are the switch face plate (2) and
nomenclature, and the key cylinder actuator (4). The

Off

position of the switch is illuminated when this

switch position is selected, while the “On” position of
the switch is designated by text imprinted upon the
face plate of the switch, but is not illuminated. The remainder of the switch is concealed behind the switch face plate
and the instrument panel center bezel.

The passenger airbag on/off switch housing is constructed of molded plastic and has three integral mounting tabs.
These mounting tabs are used to secure the switch to the back of the molded plastic switch face plate with three
small screws. The molded plastic face plate also has three integral mounting tabs that are used to secure the switch
and face plate unit to the instrument panel center bezel with three additional screws.

A molded plastic connector receptacle on the back of the switch housing connects the switch to the vehicle electrical
system through a dedicated take out and connector of the instrument panel wire harness. The molded plastic har-
ness connector insulator is keyed and latched to ensure proper and secure switch electrical connections. The pas-
senger airbag on/off switch cannot be adjusted or repaired and, if faulty or damaged, the switch must be replaced.

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OPERATION

The passenger airbag on/off switch allows the customer to turn the passenger airbag function On or Off to accom-
modate certain uses of the right front seating position where airbag protection may not be desired. See the owner’s
manual in the vehicle glove box for specific recommendations on when to enable or disable the passenger airbag.
The Off indicator of the switch will be illuminated whenever the switch is turned to the Off position and the ignition
switch is in the On position.

The ignition key is the only key or object that should ever be inserted into the key cylinder actuator of the switch.
The on/off switch requires only a partial key insertion to fully depress a spring-loaded locking plunger. The spring-
loaded locking plunger prevents the user from leaving the key in the switch. The key will be automatically ejected
when force is not applied. To actuate the passenger airbag on/off switch, insert the ignition key into the switch key
actuator far enough to fully depress the plunger, then rotate the actuator to the desired switch position.

When the switch key actuator is rotated to its clockwise stop (the key actuator slot will be aligned with the Off
indicator), the Off indicator is illuminated and the passenger airbag is disabled. When the switch is rotated to its
counterclockwise stop (the key actuator slot will be in a vertical position), the Off indicator will be extinguished and
the passenger airbag is enabled.

The passenger airbag on/off switch connects one of two internal resistors in series between the passenger airbag
mux switch sense and passenger airbag mux switch return circuits of the Airbag Control Module (ACM). The ACM
continually monitors the resistance in these circuits to determine the switch position that has been selected.

When the switch is in the Off position, the ACM provides a ground input to the switch through the passenger airbag
indicator driver circuit, which energizes the Light-Emitting Diode (LED) that illuminates the Off indicator of the switch.
The ACM will also illuminate the Off indicator of the switch for about seven seconds each time the ignition switch is
turned to the On position as a bulb test.

The ACM will store a Diagnostic Trouble Code (DTC) for any fault it detects in the passenger airbag on/off switch
or Off indicator circuits, and will illuminate the airbag indicator in the instrument cluster if a fault is detected. For
proper diagnosis of the passenger airbag on/off switch or the ACM, a diagnostic scan tool is required. Refer to the
appropriate diagnostic information.

REMOVAL

1. Disconnect and isolate the battery negative cable.

Wait two minutes for the system capacitor to dis-
charge before further service.

2. Remove the center bezel (1) from the instrument

panel. (Refer to 23 - BODY/INSTRUMENT PANEL/
INSTRUMENT

PANEL

CENTER

BEZEL

REMOVAL).

3. From the back of the center bezel, remove the

three screws (2) that secure the passenger airbag
on/off switch and face plate unit (3) to the back of
the bezel.

4. Remove the passenger airbag on/off switch and

face plate from the center bezel as a unit.

DR/DH

RESTRAINTS - SERVICE INFORMATION

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Content .. 560 561 562 563 ..