Dodge 2006 Sprinter, Manual

Page: 934 / 2315

t h r ou gh t h e fu el level sen se cir cu it . Th e fu el level
sen sor is a pot en t iom et er t h a t ch a n ges r esist a n ce
a ccor din g t o t h e
fu el level. As t h e fu el level
decr ea ses, t h e r esist a n ce t h r ou gh t h e fu el level sen -
sor in cr ea ses. Th e in st r u m en t clu st er a pplies a fu el
t a n k ch a r a ct er ist ic cu r ve a n d fu el t a n k r eser ve va lve
set t in g t o t h e fu el level sen sor in pu t , wh ich m u st be
con figu r ed wh en t h e clu st er is in it ia lized. Th ese
ch a r a ct er ist ics det er m in e t h e a lgor it h m t h e clu st er
u ses t o displa y t h e fu el level da t a on t h e fu el ga u ge
a n d t h e con t r ol for t h e low fu el wa r n in g in dica t or.
Th e fu el level sen sor a n d t h e fu el level sen se cir cu it
t o t h e in st r u m en t clu st er ca n be dia gn osed u sin g con -
ven t ion a l dia gn ost ic t ools a n d m et h ods. F or pr oper
dia gn osis of t h e in st r u m en t clu st er cir cu it r y t h a t con -
t r ols t h e fu el ga u ge, 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 .
LOW OI L LEV EL I N DI CAT OR
DESCRIPTION
A low oil level 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 low oil level in dica t or is
loca t ed n ea r t h e lower edge of t h e in st r u m en t clu st er,
t o t h e left of t h e m u lt i-fu n ct ion in dica t or displa y. Th e
low oil level in dica t or con sist s of t h e In t er n a t ion a l
Con t r ol a n d Displa y Sym bol icon for “E n gin e Oil”
im pr in t ed wit h in a r ect a 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. A r ed
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 icon t o a ppea r
silh ou et t ed a ga in st a r ed 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 sol-
der ed on t o t h e in st r u m en t clu st er elect r on ic cir cu it
boa r d. Th e low oil level in dica 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.
OPERATION
Th e low oil level in dica t or gives a n in dica t ion t o
t h e veh icle oper a t or wh en t h e en gin e oil level is low.
Th is 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 elect r on ic 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 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 low oil level 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 low oil level in di-
ca 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 low oil level 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 .
•
En g in e Oil Le v e l Lo w Me s s a g e - On ce t h e
en gin e h a s been st a r t ed, ea ch t im e t h e clu st er
r eceives a m essa ge fr om t h e E CM in dica t in g t h a t t h e
en gin e oil level is a t or n ea r t h e “Min im u m ” m a r k on
t h e dipst ick, t h e low oil level in dica t or is illu m in a t ed.
Th e in dica t or r em a in s illu m in a t ed br iefly a t fir st , bu t
will r em a in illu m in a t ed for lon ger per iods a s su bse-
qu en t m essa ges in dica t e t h a t t h e oil level h a s
dr opped
fu r t h er. E ven t u a lly, t h e in dica t or will
r em a in illu m in a t ed solid u n t il t h e en gin e oil level is
cor r ect ed, 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 in st r u m en t clu st er a lso su pplem en t s t h e oil
level in dica t or by displa yin g a n en gin e oil icon a lon g
wit h a lph a -n u m er ic m essa ges in t h e m u lt i-fu n ct ion
in dica t or Liqu id Cr yst a l Displa y (LCD) a dvisin g t h e
veh icle oper a t or h ow m u ch oil is r equ ir ed t o cor r ect
t h e en gin e oil level, a n d wh en t h e “Ma xim u m ” en gin e
oil level h a s been exceeded. 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 is
fea t u r e.
Th e E CM con t in u a lly m on it or s t h e en gin e oil level
a n d t em per a t u r e sen sor t o det er m in e t h e en gin e oil
level. Th e E CM t h en sen ds t h e pr oper en gin e oil
level m essa ges t o t h e in st r u m en t clu st er. If t h e
in st r u m en t clu st er t u r n s on t h e in dica t or a ft er t h e
bu lb t est , even a ft er t h e en gin e oil level is su fficien t ,
it m a y in dica t e t h a t t h e en gin e or t h e en gin e oilin g
syst em r equ ir es ser vice. F or pr oper dia gn osis of t h e
en gin e oil level a n d t em per a t u r e 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 low oil
level 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 .
M AI N T EN AN CE I N DI CAT OR
DESCRIPTION
An Act ive Ser vice SYSTem (ASSYST) en gin e oil
m a in t en a n ce in dica t or is opt ion a l equ ipm en t on a ll
in st r u m en t clu st er s. In veh icles so equ ipped, a sec-
on d, dedica t ed ASSYST m icr opr ocessor is in t egr a l t o
t h e clu st er elect r on ic cir cu it boa r d. Th e ASSYST in di-
ca t ion s a r e displa yed a n d ca n be t oggled wit h t h e
clock in dica t ion on t h e r igh t side of t h e m u lt i-fu n c-
t ion in dica t or Liqu id Cr yst a l Displa y (LCD) loca t ed
n ea r t h e lower edge of t h e in st r u m en t clu st er,
dir ect ly below t h e speedom et er. Th e ASSYST displa ys
in clu de n u m er ic va lu es com bin ed wit h sever a l icon s
t o in dica t e a ct u a l en gin e oil level, a n d r em in der s in
t im e (da ys) or dist a n ce (m iles or kilom et er s) u n t il t h e
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