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31-08-2022, 18:00 PM, (This post was last modified: 31-08-2022, 18:03 PM by psilocin.)
Post: #1
XZBMW  TCM IMMO?
HI friends!

Recently got an E70 X5 35D, DME was missing!, had to order a lockset from the UK so had to wait a while, so now I have installed the lockset and all seems to be successful...engine starts and all seems good under the hood[Image: clapping.gif]....however not sure if I caused an issue with the TCM or was  an existing old problem! As I have one fault coming up "TCM immobilizer activated"
will a reprogramming of the TCM resolve this issue or will it be a bigger issue?
Hope to get some advice before I just go ahead with programming!
Cant shift into D, R or N,

Anyone know what happened on cartechnology? I have been away for awhile, I come back now and most of my previous posts and threads are missing! And my few rep points are gone...back to zero
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31-08-2022, 18:35 PM,
Post: #2
RE: TCM IMMO?
the E70's EGS has EWS. If you can read EGS, DDE and CAS eeproms and post here we can fix for you. If not you need a specialist.


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[+] 1 user says Thank You to bmchicago for this post
31-08-2022, 21:39 PM,
Post: #3
XZBMW  RE: TCM IMMO?
(31-08-2022, 18:35 PM)bmchicago Wrote:  the E70's EGS has EWS. If you can read EGS, DDE and CAS eeproms and post here we can fix for you. If not you need a specialist.

thank you!
I seem to have gone about this  the wrong way! Perhaps I should have just installed the DME? I installed new DME, CAS, and ignition-key,
I still have the original ignition-key and CAS!

Can you tell me what the best tool/s for the job will be? I have only been buying what I need as I go!
Its my livelihood, so really need to try getting this done myself and learning! but either way I will get the EEPROM read and post
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01-09-2022, 13:44 PM,
Post: #4
RE: TCM IMMO?
yes the DDE/DME is the easiest. post original CAS3 and donor DDE/DME eeproms.


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[+] 1 user says Thank You to bmchicago for this post
01-09-2022, 16:07 PM, (This post was last modified: 01-09-2022, 17:06 PM by psilocin.)
Post: #5
XZBMW  RE: TCM IMMO?
Excellent! I will be back asap may be a few days[Image: handshake.gif]

Will Hextag (non Chinese) get the job done? I will study the brochure and make sure
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01-09-2022, 17:48 PM,
Post: #6
RE: TCM IMMO?
cant you just reset isn in tcu and relearn it?
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01-09-2022, 19:35 PM,
Post: #7
RE: TCM IMMO?
if you are starting out, then yes HexProg is okay. I think you can pay for limited licenses.
There are many tools out there, and you should have two tools incase 1 tool does not work or has problems connecting to servers. IMO, hexprog has some issues once in a while, usually software bugs.

Sometimes there is not just 1 tool to do everything, so it can be better to find tools that can specialize in different areas.


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05-09-2022, 07:59 AM,
Post: #8
RE: TCM IMMO?
if you program TCM with vin of your E70 no problem with immo
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06-09-2022, 15:03 PM, (This post was last modified: 06-09-2022, 15:05 PM by psilocin.)
Post: #9
RE: TCM IMMO?
(01-09-2022, 17:48 PM)Jartsa Wrote:  cant you just reset isn in tcu and relearn it?

What tool do you recommend to do this?

(05-09-2022, 07:59 AM)bmw320d Wrote:  if you program TCM with vin of your E70 no problem with immo

What tools do I need for this?

What about the kess or ktag, can I get the job done with either of these?
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06-09-2022, 18:00 PM,
Post: #10
RE: TCM IMMO?
(05-09-2022, 07:59 AM)bmw320d Wrote:  if you program TCM with vin of your E70 no problem with immo

It wont over weite ISN
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