Water In Fuel Sensor Description - Dodge Sprinter 2006 Manual

14 - 30 FUEL DELIVERY
WAT ER I N FU EL SEN SOR
DESCRIPTION
Th e wa t er in fu el sen sor (WIF ) is loca t ed in t h e
fu el filt er h ou sin g (F ig. 32). Th e sen sor det ect s t h e
pr esen ce of wa t er in t h e fu el. If wa t er is pr esen t in
t h e fu el a sign a l is sen t t o t h e E CM a n d t h e E CM
sign a ls t h e in st r u m en t clu st er, over t h e CAN bu s, t o
illu m in a t e t h e wa t er in fu el wa r n in g.
Fig. 32 WATER IN FUEL SENSOR
1 - WIF SENSOR
2 - WIF DRAIN
3 - FUEL FILTER
4 - FUEL SUPPLY FROM TANK
5 - FUEL SUPPLY TO HIGH PRESSURE PUMP
OPERA TION
Th e n on -dielect r ic pr oper t ies of t h e wa t er a llow t h e
sen sor s pr obes t o close t h e elect r on ic cir cu it wh en
wa t er is pr esen t in t h e syst em . Wh en diesel fu el is
pr esen t in t h e syst em , it 's dielect r ic (does n ot con du ct
elect r icit y well) pr oper t ies do n ot a llow a n y elect r ica l
con t a ct bet ween t h e pr obes. A 12V power sign a l is
a lwa ys pr esen t in or der t o illu m in a t e t h e in dica t or on
t h e in st r u m en t clu st er. F or r em ova l a n d in st a lla t ion
pr ocedu r e r efer t o (Refer t o 14 - F UE L SYSTE M/
F UE L DE LIVE RY/F UE L F ILTE R - RE MOVAL).
VA