Tellaconunications control module
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2003 e320
Tellaconunications control module
Hey guys, I have a 2003 e320 and recently I was driving and all of a sudden I tried turning on my radio and something clicked and it would turn on but the only thing that it would show is the MB logo. Nothing else. I also noticed that the SRS and SOS lights turned on. My buddy has a computer and the codes for the tellaconunications module was 902f. I can get a new module but where in the car is it located? Has anyone ever had this problem?
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2003 e320
The telecom control unit(N112) is located under the rear back trunk space---however if you do not have the applicable diagnostic equipment you may be whining more later than now.Therefore be careful!!
What computer did your girlfriend use because all your MY W211 DAS Xentry telecom faults start with "D" therefore there is no 902f.
If you have the correct diagnostic equipment there are loads of guided test to locate the fault quickly
What computer did your girlfriend use because all your MY W211 DAS Xentry telecom faults start with "D" therefore there is no 902f.
If you have the correct diagnostic equipment there are loads of guided test to locate the fault quickly
Well it's a maxiDAS, I'm not sure what model it is but that's the computer. And it was a 902f. Other codes started with a d but this one ended with a f. If I was to switch it out myself? How would I do it?
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2003 e320
Yea I also got a code for most ring reporting that it was open. What exactly is the most ring? And I don't use the tellaconunications but I heard that it's also connected to srs. And I need my srs light to go away, also for my radio to work.
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http://bayhas.com/mercedes/w211/contents/electrical/elect_comminfo.htm
Its kinda like chain of modules which connected to each other via fiber wiring. If for example one of the module goes bad fiber signal won't go through it and it will result other modules to malfunction . This is typical MB over engineering crap. I never understood why MB insist on making everything complicated its seems like they don't look for easy routes.. Simplicity never been in Mercedes-Benz mind.
Last edited by despicable merc; Oct 1, 2014 at 01:58 AM.
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2003 e320
Most ring its a fiber optic wiring system.
http://bayhas.com/mercedes/w211/contents/electrical/elect_comminfo.htm
Its kinda like chain of modules which connected to each other via fiber wiring. If for example one of the module goes bad fiber signal won't go through it and it will result other modules to malfunction . This is typical MB over engineering crap. I never understood why MB insist on making everything complicated its seems like they don't look for easy routes.. Simplicity never been in Mercedes-Benz mind.
http://bayhas.com/mercedes/w211/contents/electrical/elect_comminfo.htm
Its kinda like chain of modules which connected to each other via fiber wiring. If for example one of the module goes bad fiber signal won't go through it and it will result other modules to malfunction . This is typical MB over engineering crap. I never understood why MB insist on making everything complicated its seems like they don't look for easy routes.. Simplicity never been in Mercedes-Benz mind.
Oh okay! Thanks for the info! So looking at it that my tel-aid module is defective.. That Prob triggered the srs light and radio right? So if I replace that module and pretty much reset everything.. Then it should all be good?
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well,it's not that easy as it sounds. If SRS light on does it give any malfunction error message in the cluster? it should give some sort of SRS malfunction. it could be that or something else.. it's difficult to identify problems based on thoughts. Especially with electronics! The whole most ring could be down.. You may try to order d2b passive coupler ( 000-545-33-84) using this method can bypass the signal to Audio Gateway which controls your audio system. Im not 100% sure that it will work but worth of try.. instead of buying a new unit which you will never use anyway
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Thread Starter
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2003 e320
Thread Starter
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2003 e320
Why is that hard to believe? The SRS and the tel-aid lights came on exactly at the same time, same time my radio shut off. The other guy said that if one module goes bad then sometimes it affects the other ones.. So what if it affected the SRS light?
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Computer diagnostics will tell what exactly is happening. Too bad DAS system aren't cheap and if you find who has he'll probably charge like $100 to see what the problem is. MB won't even bother with it.. because they usually busy servicing new cars.
If sos does nothing then its definitely telecommunications module. Have you checked fuses?
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2003 e320
SRS is a safety features (airbags, seat belts) its probably tighten to SOS too that's why you have srs on.
Computer diagnostics will tell what exactly is happening. Too bad DAS system aren't cheap and if you find who has he'll probably charge like $100 to see what the problem is. MB won't even bother with it.. because they usually busy servicing new cars.
If sos does nothing then its definitely telecommunications module. Have you checked fuses?
Computer diagnostics will tell what exactly is happening. Too bad DAS system aren't cheap and if you find who has he'll probably charge like $100 to see what the problem is. MB won't even bother with it.. because they usually busy servicing new cars.
If sos does nothing then its definitely telecommunications module. Have you checked fuses?
