Dodge Sprinter 2006 Manual page 815

VA
t o det er m in e a deceler a t ion r a t e t h a t wou ld in dica t e
a possible wh eel-lockin g t en den cy.
Fig. 1 Operation of the Wheel Speed Sensor
1 - MAGNETIC CORE
2 - CAB
3 - AIR GAP
4 - EXCITER RING
5 - COIL
Th e sign a l st r en gt h of a n y m a gn et ic in du ct ion sen -
sor is dir ect ly a ffect ed by:
• Ma gn et ic field st r en gt h ; t h e st r on ger t h e m a g-
n et ic field, t h e st r on ger t h e sign a l
• Nu m ber of win din gs in t h e sen sor ; m or e win d-
in gs pr ovide a st r on ger sign a l
• E xcit er r in g speed; t h e fa st er t h e excit er r in g/
t on e wh eel r ot a t es, t h e st r on ger t h e sign a l will be
• Dist a n ce bet ween t h e excit er r in g t eet h a n d
WSS; t h e closer t h e WSS is t o t h e excit er r in g/t on e
wh eel, t h e st r on ger t h e sign a l will be.
FRON T WH EEL SPEED SEN -
SOR
REMOVAL
(1) Ra ise a n d su ppor t t h e veh icle.
(2) Rem ove t h e fr on t wh eels.
(3) P u ll t h e wh eel speed sen sor ou t of t h e fr on t
wh eel h u b (F ig. 2).
(4) On ly d o th is s te p if s e n s o r re p la c e m e n t is
n e c e s s a ry. Cu t t h r ou gh t h e wh eel speed sen sor
ca ble a t a n ea sily a ccessible poin t (F ig. 2).
(5) Rem ove cla m pin g sleeve fr om t h e kn u ckle if
da m a ged or bein g r epla ced wit h n ew sen sor (F ig.
2).
Fig. 2 FRONT WHEEL SPEED SENSOR
1 - SHRINK-FIT SLEEVE
2 - CLAMPING BUSHING
3 - SPEED SENSOR
4 - SHRINK TUBE
INSTALLA TION
(1) Con n ect sepa r a t e wh eel speed sen sor ca bles
wit h sh r in k-fit sleeves a n d sh r in k-fit t u bin g (F ig. 2).
On ly d o th is s te p if re p la c in g th e s e n s o r.
(2) In st a ll t h e cla m pin g bu sh in g in t o t h e kn u ckle
(F ig. 2) On ly d o th is s te p if re p la c in g th e s e n s o r
o r th e c la m p in g bu s h in g w a s d a m a g e d .
(3) In st a ll t h e wh eel speed sen sor a ll t h e wa y in t o
t h e fr on t wh eel h u b t h e wh eel speed sen sor will self
a dju st wh en t h e veh icle is m oved (F ig. 2).
(4) In st a ll t h e fr on t wh eels.
(5) Lower t h e veh icle.
REAR WH EEL SPEED SEN SOR
REMOVAL
(1) Ra ise a n d su ppor t t h e veh icle.
(2) Rem ove t h e r ea r wh eels.
(3) P u ll t h e wh eel speed sen sor ou t of t h e m ou n t -
in g h ole in t h e a xle su ppor t in g t u be (F ig. 3).
(4) On ly d o th is s te p if s e n s o r re p la c e m e n t is
n e c e s s a ry. Cu t t h r ou gh t h e wh eel speed sen sor
ca ble a t a n ea sily a ccessible poin t (F ig. 3).
(5) Rem ove cla m pin g sleeve fr om t h e kn u ckle if
da m a ged or bein g r epla ced wit h n ew sen sor (F ig.
3).
BRAKES - ABS 5 - 31