Symptom:
OVER VOLTAGE
Wh e n Mo n i to re d a n d S e t Co n d it i o n :
OVE R VOLTAGE
Wh en Mon it or ed: Wit h t h e en gin e r u nn in g.
Set Con dit ion : This DTC will set if t h e hea t er ’s power su pply exceed 15.9 volt s for lon ger
th a n 20 secon ds.
POSSIBLE CAUSES
VEH ICLE ’S CH ARGING SYSTEM OVE RCHARGING
CABIN H EATE R OR HE ATE R BOOSTE R CONTROL UN IT
TE S T ACTION AP PLICAB ILITY
1 WA R N I N G : N E V E R O P E R AT E T H E H E AT E R I N A N E N C L O S E D A R E A
TH AT D OES N OT HAVE EXH AU S T VEN TILATION FACILITIES . A LWAYS
VEN T THE EXHAU S T WHE N OP ERATIN G THE HE ATER. F AILU R E TO
FOLLOW TH ES E IN S TRU CTIONS CAN RES U LT IN P E RS ON AL IN J U RY
OR D E ATH .
WA R N I N G : A L L O W T H E H E AT E R A S S E M B LY T O C O O L B E F O R E P E R -
FOR MIN G A COMP ON EN T INS P E CTION /RE PAIR /REP LACE MEN T. FAIL-
UR E TO F OLLOW THES E IN STR U CTION S CAN RE SU LT IN P E RS ON AL
IN JU RY OR D E ATH .
CAU TION: DO NOT P E RF ORM TH IS TE ST UN LE SS DIRE CTE D HE RE BY TH E
HE ATE R P RE -TEST. ALWAYS PE RF ORM TH E H E ATE R P RE -TE ST P RIOR TO
PE RF ORMING ANY OTH E R TE ST FOR TH E RE SU LT TO BE VALID.
Ch eck t h e veh icle’s ch ar gin g system for pr oper oper a t ion in accor da n ce wit h t h e
Ser vice In for m a t ion .
Is t h e veh icle’s ch a r gin g syst em oper a t in g pr oper ly?
All
Ye s → Repla ce t h e Ca bin Hea t er Assem bly or Hea t er Boost er Assem bly
in accor da n ce wit h t h e Ser vice In for m a t ion .
Per for m H E ATE R VERIF ICATION TE ST - VER 1.
No → Repa ir th e veh icle’s cha r gin g syst em in a ccor dan ce wit h th e
Ser vice In for m a t ion .
Per for m H E ATE R VERIF ICATION TE ST - VER 1.
96
CABI N H EAT ER
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