Boot and Cenral Locking Question
- Thread starter jarance
- Start date
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affan66;394816 said:emm you seem to be accustomed to the furry type to find your way to the button. Let me know how this solution works for you, jarance
Ok will do.. I have managed to get hold of some velcro material from an old shoe. You can find these material on bag, sandle, laptop power cord binder etc.
The feel of the "hook" of the Velcro is more distinct to the finger than the "bushy" part.
The hook velcro has the scratchy feel on the finger tip. The bushy part feel more like the soft velvet.
More to come later. :smokin:
flash;395093 said:u can actually buy the new velcro material from the stationery shop... virgin....
yours posts givem e the laffs....:top:
flashie, thank for the headup.. cheers.. :top:
DIY or prototype usually use whatever you can get your hand-on mah.. :stupid:
I think I need only a very small surface 10mm X 10mm surface..:listen:
Thank to affan guide.. (OK improvise a bit)
OK, here is the deal.
1. Use your right hand thumb and fore finger. Make it like you are holding a piece of cake and about to eat the cake.
2. Slide down between the door panel and dashboard, feeling the edge with your thumb as the guide (with the fore finger pointing down).
3. When the thumb touch a screw, use your fore finger to press the button just 1" down from the screw to open the boot.
Note: to add extra feel, stick a rough material like velcro on the Push Button.
Before I use to take about 5 to 10 seconds to detect the Boot Button (sometime miss).
Now following the above procedure, take about 2 to 3 seconds and never miss.
Try it and see whether it works.
OK, here is the deal.
1. Use your right hand thumb and fore finger. Make it like you are holding a piece of cake and about to eat the cake.
2. Slide down between the door panel and dashboard, feeling the edge with your thumb as the guide (with the fore finger pointing down).
3. When the thumb touch a screw, use your fore finger to press the button just 1" down from the screw to open the boot.
Note: to add extra feel, stick a rough material like velcro on the Push Button.
Before I use to take about 5 to 10 seconds to detect the Boot Button (sometime miss).
Now following the above procedure, take about 2 to 3 seconds and never miss.
Try it and see whether it works.
I have managed to download WDS.. 4GB after many week..pheeww..
OK Extract from WDS for E46..
Electronic Vehicle Immobilisation System EWS 3.3
The EWS 3.3 serves as an antitheft alarm system and enables the start of BMW vehicles.
A transponder chip is integrated in each of the vehicle keys. A ring coil is fitted about the ignition lock. The transponder chip is powered by the EWS3 control unit via this coil, i.e. no battery is required in the key. The power supply and data transfer take place in the same way as a transformer between the ring antenna (coil) at the ignition lock and the transponder chip integrated in the key.
The key then sends data to the EWS3 control unit. If this data is correct, the EWS3 enables the starter by way of a relay installed in the control unit and additionally sends a coded start enable signal via a data link to the DME/DDE.
Components
Key with integrated transponder chip
A chip which can both transmit as well as receive (transponder) is integrated in the key. This transponder chip obtains its power from the field built up by the ring coil and uses it to communicate with the EWS3 control unit. This means that no battery is necessary in the key for power supply. Every key or the transponder integrated in it is a unique part. The control unit can also differentiate between the individual keys. The key transmits and receives data from/to the EWS control unit.
If errors occur during communication between the EWS3 control unit and the individual keys, these errors are stored in the fault code memory - separate for each individual key.
Ring coil
The ring coil is fitted on the ignition lock and serves as an antenna for communication between the transponder chip (in the key) and control unit.
EWS 3.3 control unit
The EWS 3.3 control unit communicates with the key fitted in the ignition lock. If the communication procedure is correct and the key has sent all data necessary for identification and start enable to the control unit, the control unit detects whether the key is valid and has been released for use. If this is the case, it releases the starter relay located in the control unit and sends a coded enable signal via the data link to the DME/DDE.
The control unit can manage a maximum of 10 keys allocated to the control unit, i.e. a maximum of 6 replacement keys are possible.
The control unit can identify the individual keys thus making it possible to disable/enable individual keys and to store fault codes for each individual key separately in the fault code memory.
Data link to DME/DDE
The EWS3 control unit sends a coded enable signal to the DME/DDE via the data link. The engine cannot be started before this signal has been transferred.
Engine control unit (DME/DDE) with coded start enable input
The engine control unit (DME/DDE) only enables ignition and fuel supply if a correct enable signal is received from the EWS control unit.
EWS-DME/DDE interface
Identical variable codes are stored in the EWS 3.3 control unit and in the DME/DDE control unit. The value of these codes changes after every start procedure. Engine start is only enabled when the code sent by the EWS control unit agrees with the code in the DME/DDE control unit.
The control units are allocated only during initial programming of the DME/DDE control unit. The engine control unit then adopts the basic code of the EWS control unit.
Important
It is not possible to replace the DME/DDE or EW 3.3 control units for test purposes!
In the case of certain faults, it is possible that the variable codes in both control units deviate from each other. In these cases it is possible to match the variable codes by means of the service function ”EWS - DME/DDE matching”.
Influencing variables
P/N input for automatic transmission
Whether the vehicle is equipped with automatic transmission is defined in the coding.
On automatic vehicles, a start procedure is enabled by the EWS3 only if the selector lever is in position P or N.
The EWS3 control unit receives the information with regard to the selector lever position twice:
Via a data link
Via the K-bus
If the information ”selector lever in position P or N” is sent only via the K-bus but, due to a fault, not via the data link, noticeable start delays within the range of 1 - 2 s can occur.
”Central locking secured” signal
The EWS3 control unit receives this information via the K-bus.
If the EWS3 control unit receives the ”central locking secured” signal from the general module, in ignition lock position 1 (terminal R), the EWS sends back a signal via the K-bus which unlocks the central locking.
Afterrunning time
Important
For safety reasons, the EWS3 control unit features a code-dependent afterrunning time (approx. 10 seconds). It begins when the ignition lock is switched to 0 position. Within this afterrunning time start with any mechanically fitting key is enabled.
Key identification and start procedure
The following procedure takes place after inserting the vehicle key in the ignition lock:
The transponder in the key is powered via the loop antenna and sends the key data to the EWS3 control unit.
The EWS3 control unit then checks the key data to ensure it is correct and only then sends an enable signal to the engine management system and starter.
After the engine has started, the EWS3 control unit generates new key data (change code) and transfers them to the transponder in the key.
A new variable code is also created and stored in the DME/DDE control unit.
Changing individual components
Key
Replacement keys can be obtained from a sales point only via a BMW dealer where one of the 6 replacement keys fitting the vehicle is programmed. This key is not a copy of the lost key, but rather a new key.
A total of not more than 6 replacement keys suitable for the installed EWS control unit can be made and handed over.
There is a noticeable start delay of 1 - 2 s when a new key is inserted in the ignition lock for the very first time. From then on, the start procedure should take place without delay.
Lost keys must be blocked by means of diagnosis. Refer to ”Special features of the diagnosis program”.
CAUTION!
Every request for a key is documented so that enquiries from insurance companies and authorities can be followed up.
Procedure for loss of all 10 keys
A new EWS control unit is required if all 10 keys are lost.
By providing all the necessary data, it is possible to obtain a new EWS control unit from a BMW dealer and the new transponder keys allocated to it with the previous mechanical key code.
EWS control unit
The following procedure should be adhered to when replacing the EWS 3.3 control unit:
Before replacing the EWS3 control unit: Leave defective control unit installed in vehicle and in the coding program (Encoding ZCS) select point ”1 New coding - 1 Replace control unit - 1 Read out data from defective control unit”. Coding data and vehicle-specific data is read out of the EWS control unit with this part of the program and buffered in the MoDiC or DIS tester.
Now install new EWS 3 control unit.
After replacing the control unit: Encode new EWS 3 control unit with coding program selection point ”1 New coding - 1 Replace control unit - 2 Transfer data to new control unit and encode control unit”. The buffered data is now transferred and EWS - DME/DDE matching is carried out.
Note
The procedure described above must be adhered to as all the data necessary for vehicle identification is also stored in the EWS control unit. It will be necessary to do without the data readout from the old control unit only if the EWS 3 control unit no longer has diagnostic capabilities.
Proceed as follows in this case:
Install new EWS control unit in the vehicle and encode with the encoding program and selection point ”1 New coding - 2 Re-encode control unit”.
Then carry out matching with selection point ”EWS - DME/DDE matching”.
In this procedure, the vehicle data necessary for automatic vehicle identification cannot be written to the EWS control unit.
Replacement of engine control unit (DME/DDE)
After replacing the engine control unit, ”EWS - DME/DDE matching” must be conducted with the coding program or in the diagnosis program.
Important
The ignition must then be switched off for at least 25 s.
Service functions
Disable/enable key
It is possible to disable or enable individual keys electronically via the diagnosis function (service functions).
Important
Electronically disabled means that both the starter as well as the engine control unit are not released (enabled) for the start procedure. It should be borne in mind that an electronically disabled key still fits mechanically, i.e. all flaps, lids and doors can still be opened.
Display of keys used to date in this vehicle
Here, the display shows for each one of the 10 keys which can be managed by the EWS3 control unit whether it has been recognised at least once by the EWS control unit, i.e. it is possible to trace, also on older vehicles, how many keys have already been used in this particular vehicle.
OK Extract from WDS for E46..
Electronic Vehicle Immobilisation System EWS 3.3
The EWS 3.3 serves as an antitheft alarm system and enables the start of BMW vehicles.
A transponder chip is integrated in each of the vehicle keys. A ring coil is fitted about the ignition lock. The transponder chip is powered by the EWS3 control unit via this coil, i.e. no battery is required in the key. The power supply and data transfer take place in the same way as a transformer between the ring antenna (coil) at the ignition lock and the transponder chip integrated in the key.
The key then sends data to the EWS3 control unit. If this data is correct, the EWS3 enables the starter by way of a relay installed in the control unit and additionally sends a coded start enable signal via a data link to the DME/DDE.
Components
Key with integrated transponder chip
A chip which can both transmit as well as receive (transponder) is integrated in the key. This transponder chip obtains its power from the field built up by the ring coil and uses it to communicate with the EWS3 control unit. This means that no battery is necessary in the key for power supply. Every key or the transponder integrated in it is a unique part. The control unit can also differentiate between the individual keys. The key transmits and receives data from/to the EWS control unit.
If errors occur during communication between the EWS3 control unit and the individual keys, these errors are stored in the fault code memory - separate for each individual key.
Ring coil
The ring coil is fitted on the ignition lock and serves as an antenna for communication between the transponder chip (in the key) and control unit.
EWS 3.3 control unit
The EWS 3.3 control unit communicates with the key fitted in the ignition lock. If the communication procedure is correct and the key has sent all data necessary for identification and start enable to the control unit, the control unit detects whether the key is valid and has been released for use. If this is the case, it releases the starter relay located in the control unit and sends a coded enable signal via the data link to the DME/DDE.
The control unit can manage a maximum of 10 keys allocated to the control unit, i.e. a maximum of 6 replacement keys are possible.
The control unit can identify the individual keys thus making it possible to disable/enable individual keys and to store fault codes for each individual key separately in the fault code memory.
Data link to DME/DDE
The EWS3 control unit sends a coded enable signal to the DME/DDE via the data link. The engine cannot be started before this signal has been transferred.
Engine control unit (DME/DDE) with coded start enable input
The engine control unit (DME/DDE) only enables ignition and fuel supply if a correct enable signal is received from the EWS control unit.
EWS-DME/DDE interface
Identical variable codes are stored in the EWS 3.3 control unit and in the DME/DDE control unit. The value of these codes changes after every start procedure. Engine start is only enabled when the code sent by the EWS control unit agrees with the code in the DME/DDE control unit.
The control units are allocated only during initial programming of the DME/DDE control unit. The engine control unit then adopts the basic code of the EWS control unit.
Important
It is not possible to replace the DME/DDE or EW 3.3 control units for test purposes!
In the case of certain faults, it is possible that the variable codes in both control units deviate from each other. In these cases it is possible to match the variable codes by means of the service function ”EWS - DME/DDE matching”.
Influencing variables
P/N input for automatic transmission
Whether the vehicle is equipped with automatic transmission is defined in the coding.
On automatic vehicles, a start procedure is enabled by the EWS3 only if the selector lever is in position P or N.
The EWS3 control unit receives the information with regard to the selector lever position twice:
Via a data link
Via the K-bus
If the information ”selector lever in position P or N” is sent only via the K-bus but, due to a fault, not via the data link, noticeable start delays within the range of 1 - 2 s can occur.
”Central locking secured” signal
The EWS3 control unit receives this information via the K-bus.
If the EWS3 control unit receives the ”central locking secured” signal from the general module, in ignition lock position 1 (terminal R), the EWS sends back a signal via the K-bus which unlocks the central locking.
Afterrunning time
Important
For safety reasons, the EWS3 control unit features a code-dependent afterrunning time (approx. 10 seconds). It begins when the ignition lock is switched to 0 position. Within this afterrunning time start with any mechanically fitting key is enabled.
Key identification and start procedure
The following procedure takes place after inserting the vehicle key in the ignition lock:
The transponder in the key is powered via the loop antenna and sends the key data to the EWS3 control unit.
The EWS3 control unit then checks the key data to ensure it is correct and only then sends an enable signal to the engine management system and starter.
After the engine has started, the EWS3 control unit generates new key data (change code) and transfers them to the transponder in the key.
A new variable code is also created and stored in the DME/DDE control unit.
Changing individual components
Key
Replacement keys can be obtained from a sales point only via a BMW dealer where one of the 6 replacement keys fitting the vehicle is programmed. This key is not a copy of the lost key, but rather a new key.
A total of not more than 6 replacement keys suitable for the installed EWS control unit can be made and handed over.
There is a noticeable start delay of 1 - 2 s when a new key is inserted in the ignition lock for the very first time. From then on, the start procedure should take place without delay.
Lost keys must be blocked by means of diagnosis. Refer to ”Special features of the diagnosis program”.
CAUTION!
Every request for a key is documented so that enquiries from insurance companies and authorities can be followed up.
Procedure for loss of all 10 keys
A new EWS control unit is required if all 10 keys are lost.
By providing all the necessary data, it is possible to obtain a new EWS control unit from a BMW dealer and the new transponder keys allocated to it with the previous mechanical key code.
EWS control unit
The following procedure should be adhered to when replacing the EWS 3.3 control unit:
Before replacing the EWS3 control unit: Leave defective control unit installed in vehicle and in the coding program (Encoding ZCS) select point ”1 New coding - 1 Replace control unit - 1 Read out data from defective control unit”. Coding data and vehicle-specific data is read out of the EWS control unit with this part of the program and buffered in the MoDiC or DIS tester.
Now install new EWS 3 control unit.
After replacing the control unit: Encode new EWS 3 control unit with coding program selection point ”1 New coding - 1 Replace control unit - 2 Transfer data to new control unit and encode control unit”. The buffered data is now transferred and EWS - DME/DDE matching is carried out.
Note
The procedure described above must be adhered to as all the data necessary for vehicle identification is also stored in the EWS control unit. It will be necessary to do without the data readout from the old control unit only if the EWS 3 control unit no longer has diagnostic capabilities.
Proceed as follows in this case:
Install new EWS control unit in the vehicle and encode with the encoding program and selection point ”1 New coding - 2 Re-encode control unit”.
Then carry out matching with selection point ”EWS - DME/DDE matching”.
In this procedure, the vehicle data necessary for automatic vehicle identification cannot be written to the EWS control unit.
Replacement of engine control unit (DME/DDE)
After replacing the engine control unit, ”EWS - DME/DDE matching” must be conducted with the coding program or in the diagnosis program.
Important
The ignition must then be switched off for at least 25 s.
Service functions
Disable/enable key
It is possible to disable or enable individual keys electronically via the diagnosis function (service functions).
Important
Electronically disabled means that both the starter as well as the engine control unit are not released (enabled) for the start procedure. It should be borne in mind that an electronically disabled key still fits mechanically, i.e. all flaps, lids and doors can still be opened.
Display of keys used to date in this vehicle
Here, the display shows for each one of the 10 keys which can be managed by the EWS3 control unit whether it has been recognised at least once by the EWS control unit, i.e. it is possible to trace, also on older vehicles, how many keys have already been used in this particular vehicle.
So basically the key get charge by the metal part of the key as the inductive core. The induce voltage is pick by a secondary coil in the key and is rectified to DC voltage to charge the battery in the key.
Similarly data is transmitted via this two coils..
Now I know how it works..
Similarly data is transmitted via this two coils..
Now I know how it works..
Yes, if somebody copy one of your KEY, and you use all the master key and the spare key
to start the car regularly it will changed the CODE, then
next time if they want to steal your car, it is imposible,
but they can open the door with the key, switch on ignition with the key,
maybe steal the switch, or damaging the interior, ?
replace the electronic module with Hacked code?
to start the car regularly it will changed the CODE, then
next time if they want to steal your car, it is imposible,
but they can open the door with the key, switch on ignition with the key,
maybe steal the switch, or damaging the interior, ?
replace the electronic module with Hacked code?
saat
Club Guest
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- Dec 6, 2004
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- 1,839
- Points
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Jarance, don't lah brother go to all that extent just because you want to have a spoiler that can be deployed at speed ala SLR.
You want a spoiler get one and stick it to the boot lid.
No need to fashion some devise so that you can pop open the boot lid and use it as air brake. If you pop open the boot lid as spoiler at high speed the contents of your boot will be flying out the back.
You want a spoiler get one and stick it to the boot lid.
No need to fashion some devise so that you can pop open the boot lid and use it as air brake. If you pop open the boot lid as spoiler at high speed the contents of your boot will be flying out the back.
no need to download those 4GB WDS, you can refer to
internet http://www.bmw-planet.com for wiring on all bmw model,
make sure you check the EWS module yourself, check how many key in the
EWS program and you own how many key. delete the key memory in EWS
memory which it did not in your hand...
internet http://www.bmw-planet.com for wiring on all bmw model,
make sure you check the EWS module yourself, check how many key in the
EWS program and you own how many key. delete the key memory in EWS
memory which it did not in your hand...
