Traction Control Indicator Description; Operation - Dodge Sprinter 2006 Manual

8J - 26 INSTRUMENT CLUSTER
r eceived by t h e clu st er fr om t h e E n gin e Con t r ol Mod-
u le (E CM) over t h e Con t r oller Ar ea Net wor k (CAN)
da t a bu s. Th e t a ch om et er is a n a ir cor e m a gn et ic
u n it t h a t r eceives ba t t er y cu r r en t on t h e in st r u m en t
clu st er elect r on ic cir cu it boa r d wh en t h e in st r u m en t
clu st er det ect s t h a t t h e ign it ion swit ch is in t h e On
posit ion . Th e clu st er is pr ogr a m m ed t o m ove t h e
ga u ge n eedle ba ck t o t h e low en d of t h e sca le a ft er
t h e ign it ion swit ch is t u r n ed t o t h e Off posit ion . Th e
in st r u m en t clu st er cir cu it r y con t r ols t h e ga u ge n ee-
dle posit ion a n d pr ovides t h e followin g fea t u r es:
• En g in e S p e e d Me s s a g e - E a ch t im e t h e clu st er
r eceives a n en gin e speed m essa ge fr om t h e E CM it
will ca lcu la t e t h e cor r ect en gin e speed r ea din g a n d
posit ion t h e ga u ge n eedle a t t h a t r ela t ive speed posi-
t ion on t h e ga u ge sca le. Th e ga u ge n eedle will con -
t in u a lly be r eposit ion ed a t t h e r ela t ive en gin e speed
posit ion on t h e ga u ge sca le u n t il t h e en gin e st ops
r u n n in g, or u n t il t h e ign it ion swit ch is t u r n ed t o t h e
Off posit ion , wh ich ever occu r s fir st .
• Co m m u n ic a tio n Erro r - If t h e clu st er fa ils t o
r eceive a n en gin e speed m essa ge, it will h old t h e
ga u ge n eedle a t t h e la st in dica t ion for a bou t t h r ee
secon ds, or u n t il t h e ign it ion swit ch is t u r n ed t o t h e
Off posit ion , wh ich ever occu r s fir st . Aft er t h r ee sec-
on ds, t h e ga u ge n eedle will r et u r n t o t h e left en d of
t h e ga u ge sca le.
Th e E CM con t in u a lly m on it or s t h e cr a n ksh a ft posi-
t ion sen sor t o det er m in e t h e en gin e speed. Th e E CM
t h en sen ds t h e pr oper en gin e speed m essa ges t o t h e
in st r u m en t clu st er. F or pr oper dia gn osis of t h e
cr a n ksh a ft posit ion sen sor, t h e E CM, t h e CAN da t a
bu s, or t h e elect r on ic m essa ge in pu t s t o t h e in st r u -
m en t clu st er t h a t con t r ol t h e t a ch om et er, a dia gn os-
t 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 .
T RACT I ON CON T ROL I N DI CA-
T OR
DESCRIPTION
A t r a ct ion con t r ol (ASR) in dica t or is st a n da r d
equ ipm en t on a ll in st r u m en t clu st er s. Th e t r a ct ion
con t r ol in dica t or is loca t ed n ea r t h e cen t er of t h e
speedom et er in t h e in st r u m en t clu st er. Th e t r a ct ion
con t r ol in dica t or con sist s of a n "!" (excla m a t ion poin t )
im pr in t ed wit h in a t r ia n gu la r cu t ou t in t h e opa qu e
la yer of t h e in st r u m en t clu st er over la y. Th e da r k
ou t er la yer of t h e over la y pr even t s t h e in dica t or fr om
bein g clea r ly visible wh en it is n ot illu m in a t ed. An
a m ber Ligh t E m it t in g Diode (LE D) beh in d t h e cu t ou t
in t h e opa qu e la yer of t h e over la y ca u ses t h e excla -
m a t ion poin t t o a ppea r silh ou et t ed a ga in st a n a m ber
field t h r ou gh t h e t r a n slu cen t ou t er la yer of t h e over-
la y wh en t h e in dica t or is illu m in a t ed fr om beh in d by
t h e LE D, wh ich is solder ed on t o t h e in st r u m en t clu s-
t er elect r on ic cir cu it boa r d. Th e t r a ct ion con t r ol in di-
ca t or is ser viced a s a u n it wit h t h e in st r u m en t
clu st er.
OPERA TION
Th e t r a ct ion con t r ol (ASR) in dica t or gives sever a l
in dica t ion s t o t h e veh icle oper a t or con cer n in g t h e
oper a t in g st a t u s of t h e t r a ct ion con t r ol (ASR) syst em .
Th e t r a ct ion con t r ol in dica t or is con t r olled by a t r a n -
sist or on t h e in st r u m en t clu st er cir cu it boa r d ba sed
u pon clu st er pr ogr a m m in g a n d elect r on ic m essa ges
r eceived by t h e clu st er fr om t h e Con t r oller An t i-lock
Br a ke (CAB) over t h e Con t r oller Ar ea Net wor k
(CAN) da t a bu s. Th e t r a ct ion con t r ol in dica t or Ligh t
E m it t in g Diode (LE D) is com plet ely con t r olled by t h e
in st r u m en t clu st er logic cir cu it , a n d t h a t logic will
on ly a llow t h is in dica t or t o oper a t e wh en t h e in st r u -
m en t clu st er det ect s t h a t t h e ign it ion swit ch is in t h e
On posit ion . Th er efor e, t h e LE D will a lwa ys be off
wh en t h e ign it ion swit ch is in a n y posit ion except
On . Th e LE D on ly illu m in a t es wh en it is pr ovided a
pa t h t o gr ou n d by t h e in st r u m en t clu st er t r a n sist or.
Th e in st r u m en t clu st er will t u r n on t h e t r a ct ion con -
t r ol in dica t or for t h e followin g r ea son s:
• B u lb Te s t - E a ch t im e t h e ign it ion swit ch is
t u r n ed t o t h e On posit ion t h e t r a ct ion con t r ol in dica -
t or is illu m in a t ed for a bou t t wo secon ds a s a bu lb
t est .
• Tra c tio n Co n tro l (AS R) In d ic a to r La m p -On
Me s s a g e - E a ch t im e t h e clu st er r eceives a t r a ct ion
con t r ol in dica t or la m p-on m essa ge fr om t h e CAB, t h e
in dica t or will be illu m in a t ed. Th is in dica t or ca n be
fla sh ed on a n d off, or illu m in a t ed solid, a s dict a t ed
by t h e CAB m essa ge. Th e in dica t or is illu m in a t ed
solid wh en t h e t r a ct ion con t r ol syst em h a s been dea c-
t iva t ed; a n d is fla sh ed wh en t h e t r a ct ion con t r ol is
a ct iva t ed or wh en t h e dr iven wh eels lose t r a ct ion
wit h t h e t r a ct ion con t r ol dea ct iva t ed. Th e in dica t or
r em a in s fla sh in g or illu m in a t ed solid u n t il t h e clu s-
t er r eceives a la m p-off m essa ge fr om t h e CAB, or
u n t il t h e ign it ion swit ch is t u r n ed t o t h e Off posit ion ,
wh ich ever occu r s fir st .
Th e CAB con t in u a lly m on it or s t h e t r a ct ion con t r ol
(ASR) swit ch a n d t h e fou r wh eel speed sen sor s t o
det er m in e t h e cor r ect oper a t in g m ode for t h e t r a ct ion
con t r ol syst em . Th e CAB t h en sen ds t h e pr oper
la m p-on or la m p-off m essa ges t o t h e in st r u m en t clu s-
t er. See t h e own er 's m a n u a l in t h e veh icle glove box
for m or e in for m a t ion on t h e fea t u r es, u se, a ct iva t ion
a n d dea ct iva t ion of t h e t r a ct ion con t r ol (ASR) syst em .
F or pr oper dia gn osis of t h e t r a ct ion con t r ol syst em ,
t h e CAB, t h e CAN da t a bu s, or t h e elect r on ic m es-
sa ge in pu t s t o t h e in st r u m en t clu st er t h a t con t r ol t h e
t r a ct ion con t r ol in dica t or, 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 .
VA