Operation; Removal - Dodge Sprinter 2006 Manual

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Fig. 3 TRANSPONDER RING
REMOTE KEYLESS ENTRY (RKE)
Th e RKE t r a n sm it t er u ses r a dio fr equ en cy sign a ls
t o com m u n ica t e wit h t h e Sen t r y Key Rem ot e E n t r y
Modu le (SKRE E M). Th e SKRE E M is h a r dwir ed t o
t h e Cen t r a l Tim er Modu le (CTM). Wh en t h e oper a t or
pr esses a bu t t on on t h e t r a n sm it t er, it sen ds a spe-
cific r equ est t o t h e SKRE E M. In t u r n , t h e SKRE E M
sen ds t h e a ppr opr ia t e r equ est t o t h e CTM t o u n lock
t h e veh icle door s.
OPERA TION
SENTRY KEY IMMOBILIZER
Th e Sen t r y Key Rem ot e E n t r y Modu le (SKRE E M)
r eceives a n en cr ypt ed Ra dio F r equ en cy (RF ) sign a l
fr om t h e t r a n spon der key wh ich is r ea d by t h e
r em ot ely m ou n t ed a n t en n a r in g a t t h e ign it ion cylin -
der. Th e SKRE E M t h en decr ypt s t h e sign a l a n d
br oa dca st s t h e r equ est ed r em ot e com m a n ds t o t h e
a ppr opr ia t e m odu les in t h e veh icle over t h e Con t r ol-
ler Ar ea Net wor k (CAN) da t a bu s. A va lid t r a n spon -
der key ID m u st be in cor por a t ed in t o t h e RF sign a l
in or der for t h e SKRE E M t o pa ss t h e m essa ge on t o
t h e a ppr opr ia t e m odu les.
Au t om a t ic t r a n spon der key syn ch r on iza t ion is don e
by t h e SKRE E M if a va lid t r a n spon der key is
in ser t ed in t o t h e ign it ion cylin der, a n d t h e ign it ion is
t u r n ed ON. Th is pr ovides a m a xim u m oper a t ion win -
dow for RKE fu n ct ion s.
E a ch Sen t r y Key Rem ot e E n t r y Syst em (SKRE E S)
con sist s of a SKRE E M, a n a n t en n a r in g m ou n t ed
a r ou n d t h e ign it ion cylin der, a n d a t r a n spon der key.
E a ch syst em h a s a secr et key code u n iqu e t o t h a t
syst em . Th e secr et key is elect r on ica lly coded in t h e
SKRE E M a n d in a ll pr ogr a m m ed t r a n spon der keys.
It is u sed for im m obiliza t ion a n d RKE fu n ct ion s for
da t a secu r it y. In a ddit ion , ea ch t r a n spon der key will
h a ve a u n iqu e iden t ifica t ion .
VEHICLE THEFT SECURITY 8Q - 3
REMOTE KEYLESS ENTRY
Aft er pr essin g t h e lock bu t t on on t h e RKE t r a n s-
m it t er, a ll of t h e door locks will lock, t h e illu m in a t ed
en t r y will t u r n off (pr ovidin g a ll door s a r e closed),
a n d t h e VTSS (if equ ipped) will a r m . Aft er pr essin g
t h e u n lock bu t t on , on t h e RKE t r a n sm it t er, on e t im e,
t h e dr iver door lock will u n lock, t h e illu m in a t ed
en t r y will t u r n on t h e cou r t esy la m ps, a n d t h e VTSS
(if equ ipped) will disa r m . Aft er pr essin g t h e u n lock
bu t t on a secon d t im e, t h e r em a in in g door locks will
u n lock.
Th e SKRE E M is ca pa ble of r et a in in g u p t o 8 in di-
vidu a l a ccess codes (8 t r a n sm it t er s). If t h e P RNDL is
in a n y posit ion except pa r k, t h e SKRE E M will dis-
a ble t h e RKE . Use a dia gn ost ic sca n t ool or t h e cu s-
t om er pr ogr a m m in g m et h od t o pr ogr a m t h e RKE
syst em . H owever, t h e SKRE E M will on ly a llow RKE
pr ogr a m m in g wh en t h e ign it ion is in t h e ON posi-
t ion , t h e P RNDL is in pa r k posit ion , a n d t h e VTSS
(if equ ipped) is disa r m ed.

REMOVAL

SENTRY KEY REMOTE ENTRY MODULE
(1) Open h ood, discon n ect a n d isola t e t h e ba t t er y
n ega t ive ca ble.
(2) Wa it t wo m in u t es for t h e syst em r eser ve ca pa c-
it or t o disch a r ge befor e begin n in g a n y syst em or com -
pon en t ser vice.
(3) Rem ove t op cover - clu st er (Refer t o 23 -
BODY/INSTRUME NT PANE L/TOP COVE R - CLUS-
TE R - RE MOVAL).
(4) Discon n ect t h e on e elect r ica l con n ect or t o t h e
SKRE E M (F ig. 4) wh ich is t h e t r a n spon der r in g con -
n ect or.