reset BMW 3 SERIES 1998 E46 Drive Away Protection Syst

23
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 replacement).
EWS III (3.3) Control Module
Replacement EWS III (3.3) Control Modules are ordered VIN specific. The module is
received with the same “Rolling Code Table” as the original module. Once ZCS coded, the
DISplus software “resets” the current rolling code in the DME back to “Rolling Code” #1,
providing synchronization of both modules.
DME Control Modules
Replacement DME Control Modules are “off the shelf” and must be programmed for the
specific vehicle. After programming the DISplus software informs the EWS III (3.3) control
module that a new DME has been installed. The next time the ignition is switched on, the
EWS III (3.3) module will send the entire “Rolling Code Table” to the DME and reset it to
“Rolling Code” #1.
The DME will automatically burn the “Rolling Code Table” into its memory.
Once the table
has been burned into the DME memory it can NOT
be changed. For this reason once a
DME is “Married” to the vehicle it will not work in any other vehicle.
Under certain condition “Alignment” of the DME and EWS III (3.3) modules may still be nec-
essary. The alignment procedure only resets the code table to code #1 it does not change
the “Rolling Code Table”.
Key Activation
Keys that are lost or stolen may be deactivated or made to not operate the starter func-
tions. The SERVICE FUNCTIONS of the DISplus or MoDic for EWS III (3.3) contains a
“bar/release code” function that activates and deactivates keys of the EWS III (3.3). Any
key may be “Barred” except the key in the ignition at the time of deactivation. The lost or
stolen key can be identified by the identification of the remaining keys.
There is no limit to the number of times a key can be activated/deactivated.
Workshop Hint:
While checking key operation, don’t forget to
wait 10 seconds before inserting the next key.
You can not BARthe key in the ignition.Workshop Hint:
A dead key battery does not affect vehicle start-
ing.
Keys without replaceable batteries are not
charged if the ignition is in the KLO (Off) posi-
tion.

24
EWS
EWS III D
EWS III D is installed on E36/7 beginning of production 99 Model Year. The system
does not have a K-Bus input.
Purpose of the System
The purpose of the EWS III D system is to provide the highest level of drive away protec-
tion available to vehicles without a K-Bus. The input side of the control module functions
the same as an EWS II (no bus inputs) system with the exception of an integrated EWS
module and transmitter/receiver module. The output side functions similar to an EWS III
(3.3) system with “Rolling codes”. The EWS III D control module is on the D-Bus for diag-
nostics.
Individual component inputs and system operation is the same as the mentioned previous
systems.
Replacement Procedures
Keys
Up to 6 additional keys may be ordered as replacement keys. The EWS III D control mod-
ule is codeable for only 10 keys (4 delivered with vehicle and 6 replacement).
EWS III D Control Module
Replacement EWS III D Control Modules are ordered VIN specific. The module is received
with the same “Rolling Code Table” as the original module. Once ZCS codes, the DISplus
software “resets” the current rolling code in the DME back to “Rolling Code” #1, providing
synchronization of both modules.
DME Control Modules
Replacement DME Control Modules are “off the shelf” and must be programmed for the
specific vehicle. After programming the DISplus software informs the EWS III D control
module that a new DME has been installed. The next time the ignition is switched on, the
EWS III D module will send the entire “Rolling Code Table” to the DME and reset it to
“Rolling Code” #1.
The DME will automatically burn the “Rolling Code Table” into its memory.
Once the table
has been burned into the DME memory it can NOT
be changed. For this reason once a
DME is “Married” to the vehicle it will not work in any other vehicle.

25
EWS
Under certain condition “Alignment” of the DME and EWS III D modules may still be nec-
essary. The alignment procedure only resets the code table to code #1 it does not change
the “Rolling Code Table”.
Key Activation
Keys that are lost or stolen may be deactivated or made to not operate the starter func-
tions. The SERVICE FUNCTIONS of the DISplus or MoDic for EWS III D contains a
“bar/release code” function that activates and deactivates keys of the EWS III D. Any key
may be “Barred” except the key in the ignition at the time of deactivation. The lost or stolen
key can be identified by the identification of the remaining keys.
There is no limit to the number of times a key can be activated/deactivated.
8510130
Pin Assignments
EWS III D
Workshop Hint:
With E46 Style diagnostics, check the following status’ in Diagnosis, Control Unit Functions, EWS:
• Starter Status:
Park/Neutral, BC Code active, Engine Speed, Double lock status, Starter Enabled
• Key Status:
Transmits, Changing code, Key I.D., Key number, Key Password, Key disabled
• DME Wire Status
• Selector lever/Clutch Status • Central Locking Status • Input Power •BC Code via K-Bus