Symptom:
SIREN CIRCU IT OP EN /S HORTED TO GROUN D
Wh e n Mo n i to re d a n d S e t Co n d it i o n :
SIREN CIRCU IT OP EN /SHORTED TO GROU N D
Wh en Monit ored: Wh en ever t h e ba t ter y volt a ge is a bove 10.0 volt s an d t he Secu r it y
Syst em Modu le is con n ect ed.
Set Con dit ion: Th e Secu r it y Syst em Modu le det ect s t h e in cor r ect volt a ge on t he Sir en
Sign al Con t rol cir cu it.
POSSIBLE CAUSES
DTC P RE SE N T
FUSE 2 IN FUSE BLOCK 3
FUSE D B(+) WIRE OP E N
GROU ND CI RCUI T OP E N
SIRE N SIGNAL CONTROL WIRE SH ORTE D
SIRE N SIGNAL CONTROL WIRE OP EN
SIREN
TE S T ACTION AP PLICAB ILITY
1 Wit h th e DRBIII", r ecor d a nd er a se DTC’s.
Rem ove t h e ign it ion key.
Close a nd lock a ll door s a n d set th e Veh icle Th eft Secu r it y Syst em .
Wa it 1 m in u t e.
Disa r m t h e Veh icle Th eft Syst em .
Wit h th e DRBIII",readDTC’s.
Does t h e DRBIII" display t he sam e DTC?
All
Ye s → Go To 2
No → U sin g t h e wir in g dia gr a m/sch em a t ic a s a gu ide, in spect t h e
wir in g a n d con n ect ors for a n in t er mit t en t con dit ion .
Per for m BODY VERIFICATION TE ST - VE R 1.
2 Ch eck Fu se 2 in F u se Block 3.
Is t h e fuse open ?
All
Ye s → Ch eck for a sh or t to gr ou n d a n d r epla ce th e fuse.
Per for m BODY VERIFICATION TE ST - VE R 1.
No → Go To 3
3 Discon n ect t he Sir en conn ect or.
Mea su r e th e volt a ge of th e F used B(+) circu it .
Is t h e volt a ge above 10.0 volts?
All
Ye s → Go To 4
No → Repa ir th e F u sed B(+) cir cuit for an open .
Per for m BODY VERIFICATION TE ST - VE R 1.
235
VEH ICLE TH EFT /SECU RI TY
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