Dodge Sprinter 2006 Manual page 2038

Hide thumbs Also See for Sprinter 2006:
Table of Contents

Advertisement

24 - 6
HEA TING & AIR CONDITIONING
• Mode con t r ol in t h e floor h ea t posit ion
• Blower m ot or con t r ol in t h e h igh est speed posi-
t ion
Usin g a t est t h er m om et er, ch eck t h e t em per a t u r e
of t h e a ir bein g disch a r ged a t t h e floor ou t let s. Com -
Ambient Temperature
Celsius
15.5°
21.1°
26.6°
32.2°
If t h e floor ou t let a ir t em per a t u r e is in su fficien t ,
ch eck for a fa u lt y h ea t er va lve (per for m ATC F u n c-
t ion Test ) a n d ver ify t h a t t h e coolin g syst em is oper-
a t in g t o specifica t ion s (Refer t o 7 - COOLING/
E NGINE /COOLANT - DIAGNOSIS AND TE STING).
Bot h of t h e h ea t er h oses sh ou ld be H OT t o t h e t ou ch
(t h e coola n t r et u r n h ea t er h ose sh ou ld be sligh t ly
cooler t h a n t h e su pply h ose. If t h e coola n t r et u r n
h ose is m u ch cooler t h a n t h e su pply h ose, loca t e a n d
r epa ir t h e en gin e coola n t flow obst r u ct ion in t h e
h ea t er syst em .
POSSIBLE LOCA TIONS OR CAUSE OF
OBSTRUCTED COOLANT FLOW
• P in ch ed or kin ked h ea t er h oses.
• Im pr oper h ea t er h ose r ou t in g.
• P lu gged h ea t er h oses or su pply a n d r et u r n por t s
a t t h e coolin g syst em con n ect ion s.
• In oper a t ive or st u ck h ea t er wa t er va lve.
• P lu gged h ea t er cor e.
If pr oper coola n t flow is ver ified, a n d h ea t er floor
ou t let a ir t em per a t u r e is in su fficien t , a m ech a n ica l
pr oblem m a y exist .
POSSIBLE LOCA TIONS OR CAUSE OF INSUFFI-
CIENT HEA T
• An obst r u ct ed cowl a ir in t a ke.
• Obst r u ct ed h ea t er syst em ou t let s.
• H ea t er wa t er va lve n ot fu n ct ion in g pr oper ly.
TEMPERA TURE CONTROL
If ou t let a ir t em per a t u r e ca n n ot be a dju st ed wit h
t h e A/C-h ea t er t em per a t u r e con t r ol, on e of t h e follow-
in g cou ld r equ ir e ser vice:
• F a u lt y A/C-h ea t er con t r ol swit ch .
• F a u lt y t em per a t u r e sen sor.
T EM PERAT U RE REFEREN CE CH ART
Fahreheit
60°
70°
80°
90°
pa r e t h e t est t h er m om et er r ea din g t o t h e Tem per a -
t u r e Refer en ce ch a r t .
Minimum Floor Outlet Temperature
Celsius
62.2°
63.8°
65.5°
67.2°
• F a u lt y A/C-h ea t er con t r ol ca ble or a ct u a t or.
• F a u lt y A/C-h ea t er con t r ol m odu le.
A TC FUNCTION TEST
Th e a u t om a t ic t em per a t u r e con t r ol (ATC) syst em
ca n per for m a n self-t est , wh ich ca n be a ct iva t ed by
t h e DRBIII sca n t ool t o con fir m t h a t t h e A/C syst em
is per for m in g sa t isfa ct or ily. Th is t est pr ovides a
qu ick con fir m a t ion of h ea t in g a n d A/C syst em per for-
m a n ce t o t h e ser vice t ech n icia n . Refer t o Body Dia g-
n ost ic P r ocedu r es for t h e a ppr opr ia t e dia gn ost ic
in for m a t ion .
SPECI FI CAT I ON S
HEA TING - A / C SYSTEM
FRON T A/C SY ST EM
Item
Description
A/C Compres-
Denso 7SBU16C
sor
Freeze-up Con-
Evaporator tem-
trol
perature sensor
Fahreheit
144°
147°
150°
153°
Notes
ND-8 PAG oil
HVAC hous-
ing mounted -
input to A/C-
heater control
- operating
range of -10°
C (14° F) to
40° C (104°
F)
VA

Hide quick links:

Advertisement

Chapters

Table of Contents

Troubleshooting

loading

Table of Contents