Symptom:
*NO RESP ON S E F ROM AIRBAG CON TROL MOD ULE
POSSIBLE CAUSES
CH E CK P OWERS AND GROUN DS TO THE AIRBAG CONTROL MODU LE
K-ACM CIRCUIT SH ORTED TO GROUN D
K-ACM CIRCUIT SH ORTED TO VOLTAGE
K-ACM CIRCUIT OP E N
AIRBAG CONTROL MODULE
TE S T ACTION AP PLICAB ILITY
1 WARN IN G: TU RN THE IGN ITION OF F, D IS CON N ECT THE BATTERY AN D
WA I T T WO M I N U T E S B E F O R E P R O C E E D I N G . F A I L U R E T O D O S O M AY
RES U LT IN P ERS ON AL IN J U RY OR DEATH .
Discon n ect t he Air ba g Con tr ol Module ha r n ess con n ect or.
Ch eck ea ch power a n d gr ou n d cir cu it to th e modu le.
Wer e an y pr oblem s fou n d?
All
Ye s → Refer to th 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
help isola t e an open or sh or t ed con dit ion . Repa ir as n ecessa r y.
Per for m __AIRBAG VERIF ICATION TE ST - VER 1.
No → Go To 2
2 WARN IN G: TU RN THE IGN ITION OF F, D IS CON N ECT THE BATTERY AN D
WA I T T WO M I N U T E S B E F O R E P R O C E E D I N G . F A I L U R E T O D O S O M AY
RES U LT IN P ERS ON AL IN J U RY OR DEATH .
Discon n ect t he ACM h a rn ess con n ect or.
Discon n ect t he DRBIII" from t h e DLC.
Mea su r e th e resista n ce between gr ou n d a n d t h e K-ACM cir cu it .
Is t h e resista n ce below 5.0 ohm s?
All
Ye s → Repa ir t h e K-ACM cir cu it for a sh or t to grou n d.
Per for m __AIRBAG VERIF ICATION TE ST - VER 1.
No → Go To 3
3 WARN IN G: TU RN THE IGN ITION OF F, D IS CON N ECT THE BATTERY AN D
WA I T T WO M I N U T E S B E F O R E P R O C E E D I N G . F A I L U R E T O D O S O M AY
RES U LT IN P ERS ON AL IN J U RY OR DEATH .
Discon n ect t he DRBIII" from t h e DLC.
Discon n ect t he ACM h a rn ess con n ect or.
Tur n th e ign it ion on .
Usin g a 12-volt test ligh t con n ect ed t o gr ou nd, probe t h e K-ACM cir cu it .
NOTE: Th e t e s t lig h t m u s t illu m in a t e b rig h tly. Co m p are th e brig h tn e ss to
th a t of a dire c t co n n e cti o n to th e ba tte ry.
Does t h e test ligh t illu min a t e br igh t ly?
All
Ye s → Repa ir t h e K-ACM cir cu it for a sh or t to volt a ge.
Per for m __AIRBAG VERIF ICATION TE ST - VER 1.
No → Go To 4
102
COM M U N I CAT I ON