Dodge Sprinter 2006 Manual page 317

1 .0 I N T RODU CT I ON
Th e pr ocedu r es con t a in ed in t h is m a n u a l in clu de
a ll t h e specifica t ion s, in st r u ct ion s, a n d gr a ph ics
n eeded t o dia gn ose t h e Spr in t er Ch a ssis syst em
pr oblem s: Bosch 5.7 ABS/E SP /TCS (ASR) Br a kin g
Syst em . Th e dia gn ost ics in t h is m a n u a l a r e ba sed
on t h e fa ilu r e con dit ion or sym pt om bein g pr esen t
a t t im e of dia gn osis.
P lea se follow t h e r ecom m en da t ion s below wh en
ch oosin g you r dia gn ost ic pa t h .
1. F ir st m a ke su r e t h e DRBIII is com m u n ica t in g
wit h t h e veh icle syst em bein g dia gn osed. If t h e
DRBIII displa ys a ''No Respon se'' con dit ion , you
m u st dia gn ose t h a t fir st .
2. Rea d DTC's (dia gn ost ic t r ou ble codes) wit h t h e
DRBIII .
3. If n o DTC's a r e pr esen t , iden t ify t h e cu st om er
com pla in t .
4. On ce t h e DTC or cu st om er com pla in t is iden -
t ified loca t e t h e m a t ch in g t est in t h e Ta ble of
Con t en t s a n d begin t o dia gn ose t h e syst em .
All com pon en t loca t ion views a r e in Sect ion 8.0.
All con n ect or pin ou t s a r e in Sect ion 9.0. All sch e-
m a t ics a r e in Sect ion 10.0.
Wh en r epa ir s a r e r equ ir ed, r efer t o t h e a ppr opr i-
a t e ser vice m a n u a l for t h e pr oper r em ova l a n d
r epa ir pr ocedu r e.
Dia gn ost ic pr ocedu r es ch a n ge ever y yea r. New
dia gn ost ic syst em s m a y be a dded; ca r r yover sys-
t em s m a ybe en h a n ced. RE AD TH IS MANUAL BE -
F ORE TRYING TO DIAGNOSE A VE H ICLE DI-
AGNOSTIC TROUBLE CODE . It is r ecom m en ded
t h a t you r eview t h e en t ir e m a n u a l t o becom e fa m il-
ia r wit h a ll n ew a n d ch a n ged dia gn ost ic pr ocedu r es.
Th is m a n u a l r eflect s m a n y su ggest ed ch a n ges
fr om r ea der s of pa st issu es. Aft er u sin g t h is m a n -
u a l, if you h a ve a n y com m en t s or r ecom m en da t ion s,
plea se fill ou t t h e for m a t t h e ba ck of t h e m a n u a l
a n d m a il it ba ck.
1.1 SYSTEM COVERAGE
Th is dia gn ost ic pr ocedu r e m a n u a l cover s t h e An -
t ilock Br a kin g Syst em (ABS), t h e E lect r on ic St a bil-
it y P r ogr a m (E SP ) a n d t h e Tr a ct ion Con t r ol Syst em
(TCS) fou n d on t h e Spr in t er.
1.2 SIX-STEP TROUBLESHOOTING
PROCEDURE
Dia gn osis of t h e An t ilock Br a ke Syst em s is don e
in six ba sic st eps:
Ver ifica t ion of com pla in t
•
Ver ifica t ion of a n y r ela t ed sym pt om s
•
Sym pt om a n a lysis
•
P r oblem isola t ion
•
GEN ERAL I N FORM AT I ON
Repa ir of isola t ed pr oblem
•
Ver ifica t ion of pr oper oper a t ion
•
2 .0 I N DEN T I FI CAT I ON OF
SY ST EM
Th e Bosch 5.7 syst em ca n be iden t ified by t h e 42
wa y Con t r oller An t ilock Br a ke (CAB), H ydr a u lic
Con t r ol Un it (H CU) a n d P u m p Mot or bein g a n
in t egr a l elect r on ic/h ydr a u lic u n it m ou n t ed below
t h e Ma st er Cylin der wit h fou r Wh eel Speed Sen -
sor s, on e a t ea ch wh eel.
Veh icles wit h t h e Tr a ct ion Con t r ol Syst em (TCS/
ASR) ca n be iden t ified by t h e pr esen ce of t h e
Tr a ct ion Con t r ol Syst em Swit ch (TCCS) loca t ed on
t h e cen t er in st r u m en t pa n el.
Veh icles wit h E lect r on ic St a bilit y P r ogr a m (E SP )
ca n be iden t ified by t h e pr esen ce of t h e St eer in g
An gle Sen sor a n d t h e La t er a l Acceler a t ion /Ya w
Sen sor.
3 .0 SY ST EM DESCRI PT I ON AN D
FU N CT I ON AL OPERAT I ON
3.1 ESP
Th e E SP syst em con sist s of t h e elect r on ic con t r ol/
h ydr a u lic u n it , st eer in g a n gle sen sor, la t er a l
a cceler a t ion /ya w sen sor a n d wh eel speed sen sor s.
Wh en t h e veh icle is in a t u r n , t h e E SP looks a t t h e
st eer in g wh eel a n gle sen sor va lu e a n d m on it or s t h e
wh eel speed of t h e in n er a n d ou t er wh eels t o en su r e
t h e va lu es a r e pla u sible. Th e st eer in g a n gle sen sor
a lso m ea su r es t h e speed a t wh ich t h e st eer in g
wh eel is t u r n ed.
Th e E SP con t r ol m odu le is ver y sim ila r t o t h e
ABS/ASR m odu le. Th e E SP is com pr ised of sever a l
ot h er syst em s, n a m ely t h e HB A, AB S , TCS (AS R),
EB D a n d F ZR syst em s.
3.2 ABS
Th e Con t r oller An t ilock Br a ke (CAB) is u sed t o
m on it or wh eel speeds a n d m odu la t es (con t r ols) h y-
dr a u lic pr essu r e in ea ch br a ke ch a n n el. Th e m odu -
la t ed h ydr a u lic pr essu r e is u sed t o pr even t wh eel
lock u p du r in g br a kin g a n d m a in t a in veh icle st a bil-
it y. Th e CAB a lso pr ovides a veh icle speed sign a l
(VSS) t o t h e E lect r on ic Con t r ol Modu le (E CM).
Du r in g a n on -ABS st op, t h e syst em fu n ct ion s a s a
st a n da r d br a kin g syst em . Th e CAB u ses specia l
sor t wa r e t h a t m on it or s t h e wh eel speed(s) a n d
wh en cer t a in cr it er ia a r e m et , t h e soft wa r e will
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