1
78nS e lf-d ia g n o s tic s
In th e s a m e m a nne r, th e e le c tric a l re -
s is ta nc e o f th e a irb a g ig nitio n g e ne ra -
to rs a nd a ll o f th e re m a ining a irb a g
c om p one nts is m e a s ure d a t a ll tim e s .
Any fa ult in th is s ys te m w ould b e d e -
The s ound s th e a uto m a tic c lim a te c on-
tro l m a ke s a s it c a rrie s o ut its s e lf-d ia g-
nos tic s a re n otic e a b le b e c a us e o f th e
nois e th a t th e ve ntila tio n fla p s m a ke a f-
te r th e ig nitio n h a s b e e n s witc he d o ff.
te c te d im m e d ia te ly b y a c urre nt flu c tu a - All o f th e o th e r s e lf-d ia gnos tic s fu nc -
tio n th a t w ould n e c e s s a rily a c c om p a ny tio ns o p e ra te s ile ntly in th e b a c k-
it. Th e fa ult w ould b e in d ic a te d im m e d i- gro und .
a te ly b y th e a irb a g w a rn ing la m p .
Any p os s ib le d e fe c ts d e te c te d d uring
Eve n a fte r yo u s hut o ff th e e ngine , th e
th e s e s e lf-d ia gnos tic s c a n b e re a d o ut
ove ra ll func tio na l s ta tu s o f yo ur ve hic le b y yo ur B MW c e nte r a nd q uic kly c or-
is b e ing m onito re d . Fo r e xa m p le , a ll o f re c te d d uring th e ve hic le 's n e xt re gu-
All o f th e im p orta nt e le c tric a l a nd e le c - th e fla p s fo r th e h e a tin g a nd ve ntila tio n la rly s c he d ule d m a inte na nc e .
tro nic s ys te m s in th e ve hic le a re te s te d s ys te m tra ve l to th e n e a re s t lim it p os i-
re gula rly a nd a uto m a tic a lly; th e d rive r
d oe s n ot h a ve to p e rfo rm a ny e xtra
op e ra tio ns o r a d jus tm e nts .
tio n. Th is a c tio n e ns ure s th a t in a ny
c a s e , th e d e fro s tin g func tio n will re m a in
inta c t, e ve n if a m a lfunc tio n in th e a uto -
m a tic c lim a te c ontro l s hould o c c ur d ur-
ing th e n ight w hile th e ve hic le is p a rke d .
The in d ic a to r la m p s c om e o n b rie fly
whe n th e ig nitio n is s witc he d o n.
A c a lib ra tio n c yc le ru ns e ve ry te nth tim e
th e e ngine is s hut o ff. Du ring th is c yc le ,
th e a c tu a to r m oto rs o f a ll th e h e a tin g
a nd ve ntila tio n fla p s tra ve l to th e ir lim it
s to p s in b oth d ire c tio ns . Th e lim it p os i-
tio ns a nd th e re tu rn tra ve l p a th s a re
c he c ke d in th is m a nne r in o rd e r to e n-
s ure th a t a p p ro p ria te a d jus tm e nts fo r
th e o p e ra tin g e le m e nts c a n b e m a d e a t
a ny tim e .
Wh ile yo u a re d rivin g, th e fu nc tio na l
s ta tu s o f th e a c tu a to r m oto rs (fo r th e
wind s hie ld w ip e rs , p owe r w ind ows ,
s e a ts , e tc .) is c ons ta ntly a na lyze d b y
c urre nt m e a s ure m e nts in th e ir re la ys .
Online Edition for Part No. 01 41 0 155 048 - © 01/00 BMW AG
| Categories | BMW 3-Series Manuals, BMW Manuals |
|---|---|
| Document Type | Free Auto PDF Owners Manual Download |
| Tags | BMW 323Cic, BMW E46 |
| Model Year | 2000 |
| Download File |
|
| Document File Type | |
| Wikipedia's Page | BMW 3-Series (E46) |
| Copyright | Attribution Non-commercial |
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