No power to Telephone Module? Ideas?
Thread Starter
MBWorld Fanatic!
Joined: Apr 2007
Posts: 2,381
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E
No power to Telephone Module? Ideas?
So when I bought My 2008 E350 the headunit would power on to MB logo then shut off. I eventually found the offending "area" was the telephone module.
I used the bypass adapter and the system worked because the loop was complete again. I assumed the module was bad.
Today I received a used tele module from ebay and still have the same issue -- the fiber loop isn't going through the module and thus the headunit turns off after 10 seconds.
With the other modules that I tested like the CD player, the fiber optic cable lights up and the unit lights up where the fiber exits. On the telephone module, I get light from the cable, but NOT from the unit.
I'm sort of lost on what to do now. Anybody have any ideas?
I used the bypass adapter and the system worked because the loop was complete again. I assumed the module was bad.
Today I received a used tele module from ebay and still have the same issue -- the fiber loop isn't going through the module and thus the headunit turns off after 10 seconds.
With the other modules that I tested like the CD player, the fiber optic cable lights up and the unit lights up where the fiber exits. On the telephone module, I get light from the cable, but NOT from the unit.
I'm sort of lost on what to do now. Anybody have any ideas?
Junior Member
Joined: Jan 2012
Posts: 29
Likes: 0
From: Fargo, ND
2003 ML 350
No power to Telephone Module? Ideas?
This is the phone module harness from an ML350, but I noticed that there is a fuse covered by a cap. Perhaps your system has something similar, and the fuse is blown?
