Dodge Sprinter 2006 Manual page 1915

VA
Th e t r a n sm ission oil t em per a t u r e sen sor (1) (F ig.
238) is loca t ed in t h e sh ell of t h e elect r ic va lve con -
t r ol u n it a n d is fixed t o t h e con du ct or t r a cks.
It s pu r pose is t o m ea su r e t h e t em per a t u r e of t h e
t r a n sm ission oil a n d pa ss t h e t em per a t u r e t o t h e
TCM a s a n in pu t sign a l. It is a t em per a t u r e-depen -
den t r esist or (P TC).
OPERAT I ON
PARK / NEUTRAL CONTACT
Fig. 239 Park/Neutral Contact
1 - SHELL OF ELECTRIC CONTROL MODULE
2 - PLUNGER
3 - PERMANENT MAGNET
4 - DRY-REED CONTACT
In select or lever posit ion s "P " a n d "N" t h e pa r k/
n eu t r a l con t a ct (4) (F ig. 239) is a ct u a t ed by a ca m
t r a ck wh ich is loca t ed on t h e det en t pla t e. Th e per-
m a n en t m a gn et (3) is m oved a wa y fr om t h e dr y-r eed
con t a ct (4). Th e dr y-r eed con t a ct (4) is open ed. Th e
TCM r eceives a n elect r ic sign a l. Th e cir cu it t o t h e
st a r t er in t h e select or lever posit ion s P " a n d "N" is
closed.
AUTOMA TIC TRANSMISSION NAG1 - SERVICE INFORMA TION 21 - 177
TRANSMISSION TEMPERA TURE SENSOR
Fig. 240 Transmission Temperature Sensor
1 - TRANSMISSION TEMPERATURE SENSOR
Th e t em per a t u r e of t h e t r a n sm ission oil h a s a con -
sider a ble effect on t h e sh ift in g t im e a n d t h er efor e t h e
sh ift qu a lit y. By m ea su r in g t h e oil t em per a t u r e, sh ift
oper a t ion s ca n be opt im ized in a ll t em per a t u r e
r a n ges. Th e t r a n sm ission oil t em per a t u r e sen sor (1)
(F ig. 240) is swit ch ed in ser ies wit h t h e pa r k/n eu t r a l
con t a ct . Th e t em per a t u r e sign a l is t r a n sfer r ed t o t h e
TCM on ly wh en t h e dr y-r eed con t a ct of t h e pa r k/n eu -
t r a l con t a ct is closed in RE VE RSE or a for wa r d gea r
posit ion .