Dodge Sprinter 2006 Manual page 2071

VA
r ea r A/C con t r ol m odu le. Th e t em per a t u r e of t h e cir-
cu la t ed in t er n a l a ir of t h e r ea r com pa r t m en t is m ea -
su r ed by a t em per a t u r e sen sor loca t ed in t h e r ea r
eva por a t or u n it . Th e va lu e of t h e t em per a t u r e sen sor
is com pa r ed in t h e r ea r A/C con t r ol m odu le wit h a n
a dju st ed va lu e a t t h e r ea r A/C t em per a t u r e con t r ol.
Th e r ea r A/C t em per a t u r e con t r ol ca n n ot
r epa ir ed a n d, if fa u lt y or da m a ged, it m u st be
r epla ced.
DI AGN OSI S AN D T EST I N G
REAR A / C TEMPERA TURE CONTROL
Befor e t est in g t h e r ea r A/C t em per a t u r e con t r ol,
ver ify t h a t t h e fr on t A/C syst em is oper a t in g cor r ect ly
by per for m in g t h e ATC F u n ct ion Test u sin g t h e
DRBIII sca n t ool. Use a volt /oh m m et er t o t est t h e
con t r ol. F or cir cu it descr ipt ion s a n d dia gr a m s, r efer
t o t h e a ppr opr ia t e wir in g in for m a t ion . Th e wir in g
in for m a t ion in clu des wir in g dia gr a m s, pr oper wir e
a n d con n ect or r epa ir pr ocedu r es, det a ils of wir e h a r-
n ess r ou t in g a n d r et en t ion , con n ect or pin -ou t in for-
m a t ion a n d loca t ion views for t h e va r iou s wir e
h a r n ess con n ect or s, splices a n d gr ou n ds.
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, impact sensor, or instrument panel com-
ponent diagnosis or service. Disconnect and isolate
the battery negative (ground) cable, then wait two
minutes for the system capacitor to discharge
before performing further diagnosis or service. This
is the only sure way to disable the supplemental
restraint system. Failure to take the proper precau-
tions could result in accidental airbag deployment.
(1) Discon n ect a n d isola t e t h e ba t t er y n ega t ive
ca ble.
(2) Un plu g t h e wir e h a r n ess con n ect or fr om t h e
r ea r A/C t em per a t u r e con t r ol.
(3) Ch eck for con t in u it y bet ween t er m in a l 9 a n d
t er m in a ls 3 a n d 5 of t h e A/C t em per a t u r e con t r ol. In
a ll in st a n ces, t h er e sh ou ld be con t in u it y.
NOTE: To check the switch's internal circuits, con-
nect the positive lead of the ohmmeter to terminal 9
and the negative lead to terminals 3 and 5. To
check the switches integral light emitting diode,
reverse the ohmmeter leads.
(4) Ch eck for r esist a n ce bet ween t er m in a l 3 a n d 5
of t h e A/C t em per a t u r e con t r ol a s you m ove t h e con -
t r ol t o ea ch t em per a t u r e posit ion . Resist a n ce sh ou ld
be pr esen t a n d sh ou ld ch a n ge for ea ch posit ion .
(5) If OK, t est a n d r epa ir t h e r ea r A/C t em per a -
t u r e con t r ol wir e h a r n ess cir cu it s. If n ot OK, r epla ce
t h e fa u lt y r ea r A/C t em per a t u r e con t r ol.
REMOVAL
WARNING: To avoid personal injury or death, on
be
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, impact sensor, or instrument panel com-
ponent diagnosis or service. Disconnect and isolate
the battery negative (ground) cable, then wait two
minutes for the system capacitor to discharge
before performing further diagnosis or service. This
is the only sure way to disable the supplemental
restraint system. Failure to take the proper precau-
tions could result in accidental airbag deployment.
NOTE: The rear A/C temperature control is used
only on models with the optional rear A/C unit.
(1) Discon n ect a n d isola t e t h e n ega t ive ba t t er y
ca ble.
(2) Rem ove t h e a ccessor y swit ch pa n el fr om t h e
in st r u m en t pa n el (Refer t o 23 - BODY/INSTRU-
ME NT PANE L/ACCE SSORY SWITCH
RE MOVAL).
(3) Discon n ect t h e wir e h a r n ess con n ect or fr om t h e
r ea r A/C t em per a t u r e con t r ol (F ig. 18).
(4) Disen ga ge t h e r et a in in g t a bs a n d r em ove t h e
r ea r A/C t em per a t u r e con t r ol fr om t h e a ccessor y
swit ch pa n el.
Fig. 18 Rear A/C Temperature Control
1 - WIRE HARNESS CONNECTOR
2 - REAR A/C TEMPERATURE CONTROL
3 - ACCESSORY SWITCH PANEL
CONTROLS - REAR 24 - 39
BE ZE L -