Get rid of skreem / security altogether?
Re: Get rid of skreem / security altogether?
Did I miss something?
You STILL require the SKREEM, a transponder chip, and the halo antenna.
What the above mod does is replace the physical key in the ignition with a push button, and individual ignition and accessories switches.
You STILL need the fob to lock/unlock the doors and to activate the SKREEM with the transponder chip.
Also, you STILL need the physical key to unlock the driver door if the fob, SKREEM and/or auto battery fails.
All that said, the above is a nice push-to-start conversion if that is what is wanted, but it does not get rid of the SKREEM nor the security system.
No horn tooting or calling anyone dumb....
Cheers,
You STILL require the SKREEM, a transponder chip, and the halo antenna.
What the above mod does is replace the physical key in the ignition with a push button, and individual ignition and accessories switches.
You STILL need the fob to lock/unlock the doors and to activate the SKREEM with the transponder chip.
Also, you STILL need the physical key to unlock the driver door if the fob, SKREEM and/or auto battery fails.
All that said, the above is a nice push-to-start conversion if that is what is wanted, but it does not get rid of the SKREEM nor the security system.
No horn tooting or calling anyone dumb....
Cheers,
Re: Get rid of skreem / security altogether?
Did I miss something?
You STILL require the SKREEM, a transponder chip, and the halo antenna.
What the above mod does is replace the physical key in the ignition with a push button, and individual ignition and accessories switches.
You STILL need the fob to lock/unlock the doors and to activate the SKREEM with the transponder chip.
Also, you STILL need the physical key to unlock the driver door if the fob, SKREEM and/or auto battery fails.
All that said, the above is a nice push-to-start conversion if that is what is wanted, but it does not get rid of the SKREEM nor the security system.
No horn tooting or calling anyone dumb....
Cheers,
You STILL require the SKREEM, a transponder chip, and the halo antenna.
What the above mod does is replace the physical key in the ignition with a push button, and individual ignition and accessories switches.
You STILL need the fob to lock/unlock the doors and to activate the SKREEM with the transponder chip.
Also, you STILL need the physical key to unlock the driver door if the fob, SKREEM and/or auto battery fails.
All that said, the above is a nice push-to-start conversion if that is what is wanted, but it does not get rid of the SKREEM nor the security system.
No horn tooting or calling anyone dumb....
Cheers,
No, you didn't miss anything. The original ask was for a way to bypass the skreem OR a cheap way to get the car running again.
The push button conversion was the original attempt to bypass... with extra wiring to force 12 volts to starter, fuel pump, and ignition (the 3 things most immobilizers disable).
That wound up not working (the immobilizer kills the firing signal to the coil packs, not just the 12 volt lead).
So, I found the junkyard parts (ecm, skreem, busted fob) at far less than the ebay or needswings offerings due to damage, but all I cared about was that it had a transponder chip that worked with its skreem and ECU.
So in the end it wound up not being a bypass, but was indeed a cheap fix. And yeah, it looks cool. The fob handles the doors, and we can eventually re-key the physical locks in case the battery dies. In the interim I have hooked up hidden leads that will allow 12 volts to be patched in via external battery from under / behind the front bumper (without having to have access to the hood release).
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Re: Get rid of skreem / security altogether?
This has been obvious for quite some time, reading the service manuals etc explains this plus what has been posted before.
I must add that this is a neat solution as long as the parts are cheap enough.
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Re: Get rid of skreem / security altogether?
Last edited by onehundred80; 01-05-2019 at 10:53 AM.
Re: Get rid of skreem / security altogether?
And along with the SKREEM and Key problems, there is the PCM.
Searching for additional information WRT the SKREEM, the KEY and the PCM (ECU), I found an interesting video showing details on how to clone an ECU (PCM).
The video shows a cloning process for another Mercedes model, not a SLK320, but the technology is the same.
It can be done, as demonstrated by the Merc Tech. However, it requires skilled Micro Electronics surgery, specialized equipment and software.
The tech removes the CPU chips from the current and donor ECUs, places them in a chip reader to copy the original CPU data then write it to the donor CPU.
Then, he re-solders the CPU chips back into their ECUs and, Voila!, he has 2 identical ECUs.
So, it can be done, BUT... We need someone with Micro-Miniature Repair skills, the equipment to read/write the chips, and will to take the risk of bricking your PCM.
All in all, it's probably better to watch for wrecked and parted out Crossfires with matching and working Keys, SKREEMs and PCMs to salvage as spares.
Cheers,
Searching for additional information WRT the SKREEM, the KEY and the PCM (ECU), I found an interesting video showing details on how to clone an ECU (PCM).
The video shows a cloning process for another Mercedes model, not a SLK320, but the technology is the same.
It can be done, as demonstrated by the Merc Tech. However, it requires skilled Micro Electronics surgery, specialized equipment and software.
The tech removes the CPU chips from the current and donor ECUs, places them in a chip reader to copy the original CPU data then write it to the donor CPU.
Then, he re-solders the CPU chips back into their ECUs and, Voila!, he has 2 identical ECUs.
So, it can be done, BUT... We need someone with Micro-Miniature Repair skills, the equipment to read/write the chips, and will to take the risk of bricking your PCM.
All in all, it's probably better to watch for wrecked and parted out Crossfires with matching and working Keys, SKREEMs and PCMs to salvage as spares.
Cheers,
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Re: Get rid of skreem / security altogether?
And along with the SKREEM and Key problems, there is the PCM.
Searching for additional information WRT the SKREEM, the KEY and the PCM (ECU), I found an interesting video showing details on how to clone an ECU (PCM).
The video shows a cloning process for another Mercedes model, not a SLK320, but the technology is the same.
It can be done, as demonstrated by the Merc Tech. However, it requires skilled Micro Electronics surgery, specialized equipment and software.
The tech removes the CPU chips from the current and donor ECUs, places them in a chip reader to copy the original CPU data then write it to the donor CPU.
Then, he re-solders the CPU chips back into their ECUs and, Voila!, he has 2 identical ECUs.
So, it can be done, BUT... We need someone with Micro-Miniature Repair skills, the equipment to read/write the chips, and will to take the risk of bricking your PCM.
https://www.youtube.com/watch?v=Dlb2duETdJU
All in all, it's probably better to watch for wrecked and parted out Crossfires with matching and working Keys, SKREEMs and PCMs to salvage as spares.
Cheers,
Searching for additional information WRT the SKREEM, the KEY and the PCM (ECU), I found an interesting video showing details on how to clone an ECU (PCM).
The video shows a cloning process for another Mercedes model, not a SLK320, but the technology is the same.
It can be done, as demonstrated by the Merc Tech. However, it requires skilled Micro Electronics surgery, specialized equipment and software.
The tech removes the CPU chips from the current and donor ECUs, places them in a chip reader to copy the original CPU data then write it to the donor CPU.
Then, he re-solders the CPU chips back into their ECUs and, Voila!, he has 2 identical ECUs.
So, it can be done, BUT... We need someone with Micro-Miniature Repair skills, the equipment to read/write the chips, and will to take the risk of bricking your PCM.
https://www.youtube.com/watch?v=Dlb2duETdJU
All in all, it's probably better to watch for wrecked and parted out Crossfires with matching and working Keys, SKREEMs and PCMs to salvage as spares.
Cheers,
If you really want a "solution".. my money is on him to get there. https://fundrazr.com/11RWBd?ref=sh_7...KZt7lJkpRMxKZt
Re: Get rid of skreem / security altogether?
Is there enough room for a ZIF socket ?
The Siemens chip labeled N2 is the actual CPU, what was cloned was a Motorolla memory chip.
Since it only has 200h (512) bytes this is probably a EEPROM that stores a number of nonvolatile things such as accessory mix, odometer, seat preset, etc. The actual computer program is probably on a much larger PROM.
Suspect I could read the part numbers if I wanted to run A Bunch of times. Anyone know what the Motorolla part number is ?
The Siemens chip labeled N2 is the actual CPU, what was cloned was a Motorolla memory chip.
Since it only has 200h (512) bytes this is probably a EEPROM that stores a number of nonvolatile things such as accessory mix, odometer, seat preset, etc. The actual computer program is probably on a much larger PROM.
Suspect I could read the part numbers if I wanted to run A Bunch of times. Anyone know what the Motorolla part number is ?
Last edited by Padgett; 01-06-2019 at 11:53 PM.
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Re: Get rid of skreem / security altogether?
These guys say they can fix it.
Mobile Diagnostics and Programming, LLC
Bryan Ballew
Diagnostic Specialist
ASE CMAT
Phone: (727) 432-7240
Email: support@mdp-services.com
Mobile Diagnostics and Programming, LLC
Bryan Ballew
Diagnostic Specialist
ASE CMAT
Phone: (727) 432-7240
Email: support@mdp-services.com
Join Date: Nov 2019
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Re: Get rid of skreem / security altogether?
These guys say they can fix it.
Mobile Diagnostics and Programming, LLC
Bryan Ballew
Diagnostic Specialist
ASE CMAT
Phone: (727) 432-7240
Email: support@mdp-services.com
Mobile Diagnostics and Programming, LLC
Bryan Ballew
Diagnostic Specialist
ASE CMAT
Phone: (727) 432-7240
Email: support@mdp-services.com
I sent a question regarding cloning my key fob RFID so I can have a back-up key to start the car and didn't get a reply.
If you can give some more detail I will try contacting them again about bypassing the security (SKREEM) barrier. THANKS!!
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Re: Get rid of skreem / security altogether?
They say they can reprogram the ECM, the Skreem, and the keys so that the car can run. Contact them
Re: Get rid of skreem / security altogether?
My 2005 roadster had this problem, as have many others. The symptom I had is like this: You attempt to start the car. You insert the key and the dash lights come on, but when you turn the key the engine cranks, the motor catches for maybe a second, and it stops. You repeat a second time - same thing. The third time, you turn the key and nothing -
You have SKREEM Module failure.
there is a solution. There is a company called MDP >>www.mdp-services.com
(Mobile Diagnostics & Programming) that can repair your non-functioning SKREEM module and turn this nightmare into a fairly easy repair at a reasonable cost. If you have SKREEM syndrome, you need to contact MDP. (Perhaps others can do this as well - I found and used MDP and it worked perfectly - PLUG & PLAY.
My car sat 13 months while I tried to find a way around this problem - they literally fixed the SKREEM module I removed from my car and sent to them, got it back to me PDQ, and it works.
I am 100% satisfied all the way around, is recommend this as the only solution I know of.
I recommend them 100%.
Here's what I did. I disconnected the battery. (While waiting for your parts to come back from MDP, test the battery, give it a slow charge, test again. If it is "iffy" I would put in a new one) I pulled the SKREEM module from behind the dash instrument cluster - there is an excellent video on the needswings.com website that shows how to do this. I pulled the ECM from under the hood, located in the box next to the battery. I mailed the SKREEM module, the ECM and my key fobs (both mine were working and would open doors, etc.) to MDP in Pinellas Park, FL with the necessary documents and form you can download from their website. They got it in two days, and on the third day called to let me know it was repaired, tested in their test cars, and ready to ship back.
They will then ask for the credit card to pay for the repair. Mine was $450.
I paid postage there, they paid it back to me. If they can't fix yours, they will ship it back to you - no charge for their work, they pay the postage to you. If these terms change.they will notify you when you contact them. If you have key problems, they may be able to do that as well. Ask them.
I have no idea how they do what they do, and I doubt they will tell you.
I wouldn't understand if I knew. I just know it works.
I hope this helps others caught in this situation.
I now have well over 100 starts and a couple hundred miles on the repair, and everything is working as new. This appears to be is a way to repair your malfunctioning SKREEM and use the entire system. I did it, and I'm 100% satisfied. it seems to be a relatively inexpensive way to get a complete fix, quickly. There may be other companies out there that do this - but MDP is as close as your local post office or UPS store.
You have SKREEM Module failure.
there is a solution. There is a company called MDP >>www.mdp-services.com
(Mobile Diagnostics & Programming) that can repair your non-functioning SKREEM module and turn this nightmare into a fairly easy repair at a reasonable cost. If you have SKREEM syndrome, you need to contact MDP. (Perhaps others can do this as well - I found and used MDP and it worked perfectly - PLUG & PLAY.
My car sat 13 months while I tried to find a way around this problem - they literally fixed the SKREEM module I removed from my car and sent to them, got it back to me PDQ, and it works.
I am 100% satisfied all the way around, is recommend this as the only solution I know of.
I recommend them 100%.
Here's what I did. I disconnected the battery. (While waiting for your parts to come back from MDP, test the battery, give it a slow charge, test again. If it is "iffy" I would put in a new one) I pulled the SKREEM module from behind the dash instrument cluster - there is an excellent video on the needswings.com website that shows how to do this. I pulled the ECM from under the hood, located in the box next to the battery. I mailed the SKREEM module, the ECM and my key fobs (both mine were working and would open doors, etc.) to MDP in Pinellas Park, FL with the necessary documents and form you can download from their website. They got it in two days, and on the third day called to let me know it was repaired, tested in their test cars, and ready to ship back.
They will then ask for the credit card to pay for the repair. Mine was $450.
I paid postage there, they paid it back to me. If they can't fix yours, they will ship it back to you - no charge for their work, they pay the postage to you. If these terms change.they will notify you when you contact them. If you have key problems, they may be able to do that as well. Ask them.
I have no idea how they do what they do, and I doubt they will tell you.
I wouldn't understand if I knew. I just know it works.
I hope this helps others caught in this situation.
I now have well over 100 starts and a couple hundred miles on the repair, and everything is working as new. This appears to be is a way to repair your malfunctioning SKREEM and use the entire system. I did it, and I'm 100% satisfied. it seems to be a relatively inexpensive way to get a complete fix, quickly. There may be other companies out there that do this - but MDP is as close as your local post office or UPS store.
Last edited by wolfstalker; 11-28-2019 at 03:16 PM.
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Re: Get rid of skreem / security altogether?
Situation:
2005 Chrysler Crossfire (base convertible)
Owner lost keys. Has no spare money to spend on car. Dealer of course wants $1-2K to get her going again.
Owner is a friend of mine. Looks to me for help since I have fixed her car numerous times before.
Did a bunch of research. Decided to try to bypass security.
After talking to a dealer mechanic, he said the security disables fuel pump, starter, and spark power.
I'm fairly handy with cars and electronics, so I removed the ignition cylinder assembly, disabling the steering lock and shift lock in the process.
I then wired up toggle switches and a push start button. I now have power to the car, a lead to the starter that bypasses the car's built in starter lead, and a +12v lead to a hidden switch that was intended to go to a relay to power the fuel pump and ignition coils.
However, in running temporary test leads I discovered the guy was full of crap and the ignition coils are NOT disabled at the 12 volt power source (they are disabled at the level of firing sequence). The car turns over but will not fire even with the fuel pump manually turned on (no spark). So I've wasted time and money on my cool wiring project.
Question: Is there a way to bypass the security module entirely? Get rid of it. Nobody cares any more.
Barring that, is there a CHEAP way to obtain and program any RFID chip that I can glue / tape to the transponder ring?
OR does anyone know what signal the SKREEM sends to the computer and whether it can be reproduced?
We don't care whether it's secure or not. We just want the damned thing to start and run to get her to college.
I refuse to think a 2005 car is going to be a paperweight because the security system is TOO good
Thanks in advance for your time,
-Mike
2005 Chrysler Crossfire (base convertible)
Owner lost keys. Has no spare money to spend on car. Dealer of course wants $1-2K to get her going again.
Owner is a friend of mine. Looks to me for help since I have fixed her car numerous times before.
Did a bunch of research. Decided to try to bypass security.
After talking to a dealer mechanic, he said the security disables fuel pump, starter, and spark power.
I'm fairly handy with cars and electronics, so I removed the ignition cylinder assembly, disabling the steering lock and shift lock in the process.
I then wired up toggle switches and a push start button. I now have power to the car, a lead to the starter that bypasses the car's built in starter lead, and a +12v lead to a hidden switch that was intended to go to a relay to power the fuel pump and ignition coils.
However, in running temporary test leads I discovered the guy was full of crap and the ignition coils are NOT disabled at the 12 volt power source (they are disabled at the level of firing sequence). The car turns over but will not fire even with the fuel pump manually turned on (no spark). So I've wasted time and money on my cool wiring project.
Question: Is there a way to bypass the security module entirely? Get rid of it. Nobody cares any more.
Barring that, is there a CHEAP way to obtain and program any RFID chip that I can glue / tape to the transponder ring?
OR does anyone know what signal the SKREEM sends to the computer and whether it can be reproduced?
We don't care whether it's secure or not. We just want the damned thing to start and run to get her to college.
I refuse to think a 2005 car is going to be a paperweight because the security system is TOO good
Thanks in advance for your time,
-Mike
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Re: Get rid of skreem / security altogether?
According to the FSM the SCREEM sends a secret key to the PCM which turns on the ignition. Expect the PCM could be reprogrammed to skip but have not looked into it. So answer is with the PCM and not the SCREEM. Am suprised no-one has done this. Should just need to skip a few bytes. Or there is a default code that can be used on the assembly line. Guess no one cares enough.
Re: Get rid of skreem / security altogether?
My time costs money. IF, that is a BIG IF, I can emulate the SKREEM with a plug-in module that eliminates the RFID function (meaning you can start the car simply by rotating the ignition switch), my module's cost will be $500. How does that price grab you?
Perhaps by next June I will be there, Iv'e got a LOT to learn first. But if you don't hang out here and read threads, you will never know how things stand. Stop by once in a while -hopefully, there will not be 400 threads on the topic by then.......
Right, Gary?
Perhaps by next June I will be there, Iv'e got a LOT to learn first. But if you don't hang out here and read threads, you will never know how things stand. Stop by once in a while -hopefully, there will not be 400 threads on the topic by then.......
Right, Gary?
I have a 2005 crossfire convertible key destroyed lost Hurricane Ida want to bypass security system possibly push button starter