Fan Stage 1 Relay Control Shorted - Dodge Sprinter 2006 Manual

S y m p to m :
FAN S TAGE 1 RELAY CON TROL S HORTED
FAN STAGE 1 RE LAY
FAN STAGE 1 RE LAY H IGH SIDE CONTROL CIRCUIT SH ORTE D TO GROUND
FAN STAGE 1 RE LAY H IGH SIDE CONTROL CIRCUIT SH ORTE D TO GROUND CIRCUIT
CABIN H E ATE R CONTROL UNIT
TES T
1 WARN IN G: N EVER OP ERATE THE HEATER IN AN EN CLOS ED AREA
THAT D OES N OT HAVE EXHAU S T VEN TILATION FACILITIES . ALWAYS
VEN T THE EXHAU S T WHEN OP ERATIN G THE HEATER. FAILU RE TO
F OLLOW THES E IN S TRU CTION S CAN RES U LT IN P ERS ON AL IN J U RY
OR D EATH.
CAU TION : D O N OT P ERF ORM THIS TES T U N LES S D IRECTED HERE B Y
THE HEATER P RE-TES T. ALWAYS P ERF ORM THE HEATER P RE-TES T
P RIOR TO P ERF ORMIN G AN Y OTHER TES T F OR THE RES U LT TO B E
VALID .
Tu r n t h e ign it ion off.
In st a ll a su bst it u t e r ela y in pla ce of t h e F a n St a ge 1 Rela y.
Tu r n t h e ign it ion on .
Ver ify t h a t t h e Ca bin H ea t er is swit ch ed off.
Set t h e blen d con t r ol t o t h e m a x h ea t posit ion a n d t h e m ode con t r ol t o t h e floor
posit ion .
Wit h t h e DRBIII , er a se t h e Ca bin H ea t er Modu le's DTCs.
St a r t t h e en gin e. Allow t h e en gin e t o idle.
Wit h t h e DRBIII, m on it or for Ca bin H ea t er Modu le DTCs wh ile per for m in g t h e
followin g st ep.
N OTE: D o n o t d is c o n n e c t th e v e h ic le 's ba tte ry o r th e h e a te r's m a in p o w e r
s u p p ly w h ile th e h e a te r is in o p e ra tio n o r in ru n -d o w n m o d e . F a ilu re to
fo llo w th e s e in s tru c tio n s c a n re s u lt in e x c e s s e m is s io n s fro m th e h e a te r
d u rin g h e a te r o p e ra tio n .
Swit ch t h e Ca bin H ea t er on . If n ecessa r y, a llow t h e h ea t er t o r u n t h r ou gh a t lea st on e
cycle of oper a t ion (a ppr oxim a t ely 10 m in u t es), a n d t h en swit ch t h e h ea t er off.
Tu r n t h e en gin e off.
Does t h e DRBIII displa y: FAN STAGE 1 RE LAY CONTROL SH ORTE D?
Yes
No
P OS S IB LE CAU S ES
ACTION
→ Go To 2
→ Repla ce t h e or igin a l F a n St a ge 1 Rela y in a ccor da n ce wit h t h e
Ser vice In for m a t ion .
P er for m H E ATE R VE RIF ICATION TE ST - VE R 1.
85
CABI N H EAT ER
AP P LICAB ILITY
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