Dodge ZB 2005, Service Manual

Page: 343 / 1873

INSTALLATION
(1) Install the child tether onto the rear bulkhead.
Torque bolt to 40 N·m (30 ft. lbs.).
(2) Install the child tether cover just below the
sport bar and radio tweeter.
(3) Move passenger seat back to the customer pre-
ferred position.
CLOCKSPRING
DESCRIPTION
The clock spring is mounted to the steering column
behind the steering wheel. This assembly consists of
a flat, ribbon like, electrically conductive tape that
winds and unwinds with the steering wheel rotation.
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 The clock spring is used to
maintain a continuous electrical circuit between the
wiring harness and the:
•
Driver Airbag.
•
Horn Switch.
Service replacement clock springs are shipped pre-
centered 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 clock
spring rotor to the clock spring case during shipment,
but the locking pin must be removed from the clock
spring after it is installed on the steering column.
The clock spring cannot be repaired. If the clock
spring is faulty, damaged, or if the driver airbag has
been deployed, the clock spring must be replaced.
OPERATION
The clock spring is used to maintain a continuous
electrical circuit between the fixed instrument panel
wire harness and the electrical components mounted
on or in the rotating steering wheel. The rotating
electrical components include the driver airbag and
the horn switch.
The clock spring 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.
Like the clock spring in a timepiece, the clock
spring tape has travel limits and can be damaged by
being wound too tightly during full stop-to-stop steer-
ing wheel rotation. To prevent this from occurring,
the clock spring is centered when it is installed on
the steering column. Centering the clock spring
indexes the clock spring tape to the movable steering
components so that the tape can operate within its
designed travel limits. However, if the clock spring is
removed from the steering column or if the steering
shaft is disconnected from the steering gear, the clock
spring spool can change position relative to the mov-
able steering components. The clock spring must be
re-centered following completion of this service or the
tape may be damaged. The clock spring must be
properly centered when it is installed on the steering
column following any service removal, or it will be
damaged (Refer to 8 - ELECTRICAL/RESTRAINTS/
CLOCK SPRING - STANDARD PROCEDURE).
The clock spring cannot be repaired. If the clock
spring is faulty, damaged, or if the airbag has been
deployed, the clock spring must be replaced.
STANDARD PROCEDURE - CLOCK SPRING
CENTERING
If the rotating tape within the clock spring is not
positioned properly with the steering wheel and the
front wheels, the clock spring may fail during use.
The following procedure MUST BE USED to center
the clock spring if:
•
The clock spring is not known to be properly
positioned.
•
The front wheels were moved.
•
The steering wheel was moved from the half
turn (180 degrees) to the right (clockwise) position.
Follow all Warnings for airbag component service
(Refer to 8 - ELECTRICAL/RESTRAINTS - WARN-
ING).
(1) Open deck lid.
(2) Remove four bolts to battery compartment
cover and remove cover.
(3) Disconnect and isolate the battery negative
cable.
(4) Wait two minutes for the airbag system reserve
capacitor to discharge before beginning any airbag
system or instrument panel component service.
(5) Remove clock spring (Refer to 8 - ELECTRI-
CAL/RESTRAINTS/CLOCK SPRING - REMOVAL).
(6) Rotate the clock spring rotor in the CLOCK-
WISE DIRECTION to the end of travel. Do not apply
excessive force/torque.
(7) From the end of travel, rotate the rotor three
full turns in the counterclockwise direction. The horn
wire and the squib wire should end up at the top. If
not, rotate the rotor counter clockwise until the wires
are properly oriented, but not more than half turn
(180 degrees). Engage clock spring locking mecha-
nism.
(8) Install the clock spring (Refer to 8 - ELECTRI-
CAL/RESTRAINTS/CLOCK SPRING - INSTALLA-
TION).
WARNING: DO NOT CONNECT BATTERY NEGATIVE
CABLE (Refer to 8 - ELECTRICAL/RESTRAINTS -
DIAGNOSIS AND TESTING - AIRBAG SYSTEM).
8O - 4 RESTRAINTS
ZB
CHILD TETHER (Continued)