Dodge 2006 Sprinter, Manual

Page: 943 / 2315

Th e E CM con t in u a lly m on it or s t h e en gin e coola n t
t em per a t u r e sen sor t o det er m in e wh en t h e glow
plu gs n eed t o be en er gized in t h eir pr e-h ea t oper a t -
in g m ode. Th e E CM t h en sen ds t h e pr oper wa it -t o-
st a r t
la m p-on a n d la m p-off 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 en gin e is st a r t ed, it m a y in di-
ca t e t h a t a m a lfu n ct ion h a s occu r r ed a n d t h a t t h e
en gin e glow con t r ol syst em r equ ir es ser vice. Th e
E CM will st or e a Dia gn ost ic Tr ou ble Code (DTC) for
a n y m a lfu n ct ion it det ect s. F or pr oper dia gn osis of
t h e en gin e coola n t t em per a t u r e sen sor, t h e en gin e
glow con t r ol syst em a n d cir cu it s, 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 wa it -t o-st a r t in di-
ca 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 .
WASH ER FLU I D I N DI CAT OR
DESCRIPTION
A wa sh er flu id 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. H owever, t h is in dica t or is
on ly fu n ct ion a l on veh icles equ ipped wit h a n opt ion a l
wa sh er flu id level swit ch in t egr a l t o t h e wa sh er
pu m p/m ot or
u n it on t h e wa sh er r eser voir. Th e
wa sh er flu id 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 r igh t of t h e m u lt i-
fu n ct ion in dica t or displa y. Th e wa sh er flu id 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 “Win dsh ield Wa sh er F lu id” 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. 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 icon 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 s-
lu 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 wa sh er flu id 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 wa sh er flu id in dica t or gives a n in dica t ion t o
t h e veh icle oper a t or t h a t t h e flu id level in t h e wa sh er
r eser voir is low. Th is in dica t or is con t r olled by 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 a h a r d wir ed in pu t fr om t h e
opt ion a l wa sh er flu id level swit ch t h a t is in t egr a l t o
t h e wa sh er pu m p/m ot or u n it . Th e wa sh er flu id in di-
ca t or is com plet ely con t r olled by t h e in st r u m en t clu s-
t 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 in dica t or 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 in di-
ca t or on ly illu m in a t es wh en it is swit ch ed t o gr ou n d
by t h e in st r u m en t clu st er cir cu it r y. Th e in st r u m en t
clu st er will t u r n on t h e wa sh er flu id 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 br a ke wea r in dica t or is
illu m in a t ed by t h e in st r u m en t clu st er for a bou t t wo
secon ds a s a bu lb t est .
•
Wa s h e r F lu id Le v e l S w itc h In p u t - E a ch t im e
t h e clu st er det ect s gr ou n d on t h e wa sh er flu id swit ch
sen se cir cu it (wa sh er flu id level swit ch closed =
wa sh er flu id level low) wh ile t h e ign it ion swit ch is in
t h e On posit ion , t h e wa sh er flu id in dica t or is illu m i-
n a t ed. Th e in dica t or r em a in s illu m in a t ed u n t il t h e
wa sh er flu id level swit ch in pu t t o t h e clu st er is a n
open cir cu it (wa sh er flu id level swit ch open = wa sh er
flu id level a ccept a ble), 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 con t in u a lly m on it or s t h e
wa sh er flu id level swit ch t o det er m in e t h e level of
t h e wa sh er flu id. Th e in st r u m en t clu st er logic a pplies
a dela y st r a t egy t o t h is in pu t t o r edu ce t h e n ega t ive
effect t h a t flu id slosh in g wit h in t h e r eser voir ca n
h a ve on r elia ble in dica t or oper a t ion . Th e wa sh er
flu id level swit ch a n d cir cu it 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 wa sh er flu id 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 g-
n ost ic in for m a t ion .
WAT ER - I N - FU EL I N DI CAT OR
DESCRIPTION
A wa t er-in -fu el in dica t or is st a n da r d equ ipm en t in
a ll in st r u m en t clu st er s. Th e wa t er-in -fu el 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
wa t er-in -fu el 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 “Wa t er In F u el”
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. 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 icon 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 st er elec-
t r on ic cir cu it boa r d. Th e wa t er-in -fu el 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 wa t er-in -fu el 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 er e is excessive wa t er
VA INSTRUMENT CLUSTER 8J - 29