BMW 3 SERIES 1998 E36 Drive Away Protection Syst

BMW 3 SERIES 1998 E36 Drive Away Protection Syst 3 SERIES 1998 E36 BMW BMW https://www.carmanualsonline.info/img/1/5427/w960_5427-0.png BMW 3 SERIES 1998 E36 Drive Away Protection Syst
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Page 11 of 30

BMW 3 SERIES 1998 E36 Drive Away Protection Syst 11
EWS
EWS II Control Module
The  EWS II  Control  Module  is  linked  to  the  BC,  GM,  DME,  Trans  Range  switch  and  the
starter for drive away protection operation. The module incorporates an i

Page 12 of 30

BMW 3 SERIES 1998 E36 Drive Away Protection Syst 12
EWS
DME
The  DME  is  redesigned  to  incorporate  the  new  ISN  code.  As  of  production  1/95  all  DME
control modules will contain the unique ISN number and will not interchange with previous

Page 13 of 30

BMW 3 SERIES 1998 E36 Drive Away Protection Syst 13
EWS
Principle of Operation
The starting sequence involves communication between all the components of the system.
Any  break-down  in  the  communication  process  will  result  in  a  no  start  c

Page 14 of 30

BMW 3 SERIES 1998 E36 Drive Away Protection Syst 14
EWS
• If the transponder accepts the password as correct the transponder releases the 
changing code (7) to the transmitter/receiver module which converts this AM signal to 
digital (8) and sends

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BMW 3 SERIES 1998 E36 Drive Away Protection Syst 15
EWS
Replacement Procedures
Keys
Up  to  6  additional  keys  may  be  ordered  as  replacement  keys.  The  EWS  II  control  module
is codeable for only 10 keys (4 delivered with vehicle and 6 rep

Page 16 of 30

BMW 3 SERIES 1998 E36 Drive Away Protection Syst 16
EWS
EWS III (3.2)
The 1997 Model Year E38is equipped with EWS III (3.2) drive away protection. E39vehi-
cles produced 3/97and later are also equipped with EWS III (3.2).
Purpose of the System
The m

Page 17 of 30

BMW 3 SERIES 1998 E36 Drive Away Protection Syst 17
EWS
Lock and Unlock Requests
The  lock  and  unlock  information  arrives  at  the  GM  over  the  P-Bus  from  the  door  module
and is sent via the K-Bus to the EWS III (3.2) control module.  Thi

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BMW 3 SERIES 1998 E36 Drive Away Protection Syst 18
EWS
Clutch Switch
A Hall-Effect Switch is added to the clutch system to inform the EWS III (3.2) control mod-
ule of clutch status. Input from the switch replaces the signal from the Trans Range Se

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BMW 3 SERIES 1998 E36 Drive Away Protection Syst 19
EWS
EWS III (3.2) Control Module
Replacement  EWS III (3.2)  Control  Modules  must  be  ordered  VIN  specific.  The  EWS III
modules  contain  the  VIN  and  coding  from  the  factory  to  recog

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BMW 3 SERIES 1998 E36 Drive Away Protection Syst 20
EWS
EWS III (3.3)
EWS III (3.3) is installed in the 1998 E38 from 5/97 production, in the 1998 E39 from 9/97
production,  in  the E46beginning  of  production,  in  the E52and E53 beginning  of  pr
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