Blower Stage 1 Shorted Low (Active) - Dodge Sprinter 2006 Manual

H EAT I N G & A/C
S y m p to m :
B LOWER S TAGE 1 S HORTED LOW (ACTIVE)
BLOWE R MOTOR F USE
BLOWE R MOTOR
BLOWE R MOTOR DRIVE R CIRCUIT(S) SH ORTE D TO GROUND
F USE D B+ CIRCUIT SH ORTE D TO GROUND
BLOWE R MOTOR RE SISTOR BLOCK
AUTOMATIC TE MP E RATURE CONTROL (ATC)
TES T
1 Tu r n t h e ign it ion off.
Rem ove a n d in spect t h e Blower Mot or F u se, a n d r epla ce it if n ecessa r y.
N OTE: All o f th e fo llo w in g c rite ria m u s t be m e t in o rd e r to s u c c e s s fu lly ru n
th e ATC F u n c tio n Te s t.
P la ce t h e sh ift lever in P a r k.
Tu r n t h e ign it ion on .
Wit h t h e DRBIII , r ecor d a n d er a se ATC DTC's.
St a r t t h e en gin e. Allow t h e en gin e t o r ea ch n or m a l oper a t in g t em per a t u r e.
Set t h e blower t o h igh speed.
P r ess t h e Air Con dit ion in g swit ch On .
Wit h t h e DRBIII , ver ify t h a t t h e a m bien t t em per a t u r e is a bove 59°F (15°C), t h e
r efr iger a n t pr essu r e is bet ween 29 a n d 348 P SI (2 a n d 24 ba r ), t h e eva por a t or
t em per a t u r e is a bove 36.5°F (2.5°C), a n d t h e coola n t t em per a t u r e is a bove 158°F
(70°C).
Wit h t h e DRBIII in Au t om a t ic Tem per a t u r e Con t r ol (ATC), select Syst em Test s a n d
select ATC F u n ct ion Test . Wh en t h e ATC F u n ct ion Test is com plet e, pr oceed a s
follows:
Wit h t h e DRBIII , r ea d t h e a ct ive ATC DTCs.
Does t h e DRBIII displa y: BLOWE R STAGE ONE SH ORTE D LOW?
Yes
No
2 Tu r n t h e ign it ion off.
Discon n ect t h e Blower Mot or h a r n ess con n ect or.
Con n ect a fu sed ju m per wir e bet ween Ba t t er y (+) a n d Blower Mot or ca vit y 1.
Con n ect a ju m per wir e bet ween gr ou n d a n d Blower Mot or ca vit y 2.
Does t h e Blower Mot or r u n a t fu ll speed?
Yes
No
P OS S IB LE CAU S ES
ACTION
→ Go To 2
→ Refer t o t h e wir in g dia gr a m s loca t ed in t h e ser vice in for m a t ion t o
h elp isola t e a possible in t er m it t en t sh or t t o gr ou n d con dit ion .
P er for m BODY VE RIF ICATION TE ST - VE R 1.
→ Go To 3
→ Repla ce t h e Blower Mot or in a ccor da n ce wit h t h e Ser vice In for-
m a t ion . Rem ove a n d in spect t h e Blower Mot or F u se, a n d r epla ce
it if n ecessa r y.
P er for m BODY VE RIF ICATION TE ST - VE R 1.
146
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