Operation; Seat Belt Turning Loop Adjuster Removal - Dodge Sprinter 2006 Manual

VA
deploym en t . A gr owlin g or gr in din g sou n d wh ile
a t t em pt in g t o oper a t e t h e sea t belt r et r a ct or is a su r e
in dica t ion t h a t t h e sea t belt t en sion er h a s been
deployed a n d r equ ir es r epla cem en t . (Refer t o 8 -
E LE CTRICAL/RE STRAINTS/F RONT SE AT BE LT &
RE TRACTOR - RE MOVAL).
OPERA TION
Fig. 39 Seat Belt Tensioner Operation
1 - TUBE
2 - PISTON
3 - CABLE
4 - CYLINDER
Th e sea t belt t en sion er s a r e deployed in con ju n c-
t ion wit h t h e a ir ba gs by a sign a l gen er a t ed by t h e
Air ba g Con t r ol Modu le (ACM) t h r ou gh t h e dr iver a n d
pa ssen ger sea t belt t en sion er lin e 1 a n d lin e 2 (or
squ ib) cir cu it s (F ig. 39). Wh en t h e ACM sen ds t h e
pr oper elect r ica l sign a l t o t h e t en sion er s, t h e elect r i-
ca l en er gy gen er a t es en ou gh h ea t t o in it ia t e a sm a ll
pyr ot ech n ic ga s gen er a t or. Th e ga s gen er a t or is
in st a lled so t h a t it dir ect s it s expelled ga s a t t h e
u n der side of t h e pist on in t h e cylin der. Th e pist on is
con n ect ed t o a ca ble t h a t is wou n d a r ou n d a pu lley
on on e en d of t h e r et r a ct or spool. As t h e ga s expa n ds,
it pr opels t h e pist on t h r ou gh t h e t u be, wh ich pu lls
t h e ca ble a n d r ot a t es t h e r et r a ct or spool t o t a ke u p
sla ck in t h e sea t belt webbin g.
On ce a sea t belt t en sion in g sequ en ce h a s been
com plet ed, t h e for wa r d m om en t u m of t h e occu pa n t
r esu lt s in defor m a t ion of t h e t or sion ba r. Rem ovin g
excess sla ck fr om t h e fr on t sea t belt s n ot on ly keeps
t h e occu pa n t s pr oper ly posit ion ed for a n a ir ba g
deploym en t followin g a fr on t a l im pa ct of t h e veh icle,
bu t a lso h elps t o r edu ce in ju r ies t h a t t h e occu pa n t
m igh t ot h er wise exper ien ce in a fr on t a l im pa ct even t
a s a r esu lt of h a r m fu l con t a ct wit h t h e st eer in g
wh eel, st eer in g colu m n , in st r u m en t pa n el a n d/or
win dsh ield. Th e t or sion ba r is design ed t o defor m in
or der t o con t r ol t h e loa ds bein g a pplied t o t h e occu -
pa n t by t h e sea t belt du r in g a fr on t a l im pa ct , fu r t h er
r edu cin g t h e pot en t ia l for occu pa n t in ju r ies.
Th e ACM m on it or s t h e con dit ion of t h e sea t belt
t en sion er s t h r ou gh cir cu it r esist a n ce. Th e ACM will
illu m in a t e t h e a ir ba g in dica t or in t h e E lect r oMe-
ch a n ica l In st r u m en t Clu st er (E MIC) a n d st or e a
Dia gn ost ic Tr ou ble Code (DTC) for a n y fa u lt t h a t is
det ect ed. F or pr oper dia gn osis of t h e sea t belt t en -
sion er s, a dia gn ost ic sca n t ool is r equ ir ed. Refer t o
t h e a ppr opr ia t e dia gn ost ic in for m a t ion .
SEAT BELT T U RN I N G LOOP
ADJ U ST ER
REMOVAL
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, or instrument panel component diagno-
sis or service. Disconnect and isolate the battery
negative (ground) cable, then wait two minutes for
the system capacitor to discharge before perform-
ing further diagnosis or service. This is the only
sure way to disable the supplemental restraint sys-
tem. Failure to take the proper precautions could
result in accidental airbag deployment.
WARNING: To avoid personal injury or death, during
and following any seat belt service, carefully
inspect all seat belts, buckles, mounting hardware,
retractors, and anchors for proper installation, oper-
ation, 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. Never attempt to repair a seat
belt component. Always replace damaged or faulty
seat belt components with the correct, new and
unused replacement
DaimlerChrysler Mopar Parts Catalog.
(1) Move t h e fr on t sea t t o it s m ost for wa r d posit ion
for ea siest a ccess t o t h e B-pilla r t r im .
RESTRAINTS 8O - 33
parts listed in the