Mercedes Benz Truck R 320 BLUETEC Technical LI82-60_P-046896 Date: 090708
Audio System - Satellite Radio Unavailable
SATELLITE RADIO NOT AVAILABLE AND "DEVICE UNAVAILABLE" DISPLAYING ON THE HEAD UNIT MAY CAUSE CURRENT
DRAW
Topic Number LI82.60-P-046896
Version 2
Design Group 82.60 Radio, audio/video systems
Date 07-08-2009
Validity Model 164.122/125/172/175/177/186
Model 171.454/456/458/473
Model 211.022/056/072/077/090/087/277/287
Model 219.372/377
Model 230.470/471/472/477/479
Model 251.122/125/156/165
Model 463.237/271
All Model Year 2009 Equipped with Satellite Radio/HD Turner
Reason for change New remedy (software) available, technical information updated. Notes reguarding the process included. Supercedes DTB S-B-Reason for block
Complaint:
Head unit displays "device unavailable" when user switches to satellite radio with a possible Battery current draw.
Cause:
Under-voltage condition with the vehicle itself can cause the satellite radio to go into bypass. The satellite radio operation can be recovered by a
hard-reset to the receiver; however, this condition may reoccur.
Remedy:
Use DAS version 06/09 or newer and telematics CD # 171 827 40 59 ES2:0001 to update the revelent telematics components. The satellite
Radio/HD Turner version will be 47/08.
Software update process:
1. Connect a battery charger and DAS. DAS must be connected at all times and throughout the update process.
2. Do NOT disconnect DAS at all during the update process, this can corrupt the flash and render the head unit's operation unrecoverable even if you
Mercedes Benz Truck R 320 BLUETEC
Page 333
perform a hard-reset on the head unit during software the update process
3. Start the telematics update by selecting COMAND > control unit adaptations > control module programming, follow DAS prompts.
While DAS is searching the telematics CD for the proper application software for Head unit such as DVD mechanism, Bluetooth, navigation, voice
control or for other telematics components such as sound amplifier, UCI, satellite radio/combi turner it may display this message "Software
Missing". This id normal. <br style="font-style:italic," /> Do NOT interrupt or restart the update process, or other wise the head unit can get
corrupted.
Software update process bar may not indicate the elapsed time/time remaining for the update. Even if the process bar does not seem to be changing,
the update process is taking place in the background. Please be patient, do not interrupt the process and allow DAS to continue through until the
process is complete and you are prompted by DAS to eject the telematics CD from the head unit.
4. During the update, the telematics system will reset (restart) a few times, this is normal.
5. After update is complete and SCN coding is carried out, delete DTCs and check for correct functionality
Telematics components bypass notes:
Telematics components are specified go into bypass (self protection) when sensing an under-voltage condition of 10.6 V or lower. Due to a software
error in the satellite radio, it is more susceptible to go into bypass before any other telematics components even if the voltage supply to the receiver
is over the low voltage threshold. As a result a "device unavailable" message is despayed on the head unit.
Symptoms
Mercedes Benz Truck R 320 BLUETEC
Page 334
Validity
Audio System - Satellite Radio Unavailable
SATELLITE RADIO NOT AVAILABLE AND "DEVICE UNAVAILABLE" DISPLAYING ON THE HEAD UNIT MAY CAUSE CURRENT
DRAW
Topic Number LI82.60-P-046896
Version 2
Design Group 82.60 Radio, audio/video systems
Date 07-08-2009
Validity Model 164.122/125/172/175/177/186
Model 171.454/456/458/473
Model 211.022/056/072/077/090/087/277/287
Model 219.372/377
Model 230.470/471/472/477/479
Model 251.122/125/156/165
Model 463.237/271
All Model Year 2009 Equipped with Satellite Radio/HD Turner
Reason for change New remedy (software) available, technical information updated. Notes reguarding the process included. Supercedes DTB S-B-Reason for block
Complaint:
Head unit displays "device unavailable" when user switches to satellite radio with a possible Battery current draw.
Cause:
Under-voltage condition with the vehicle itself can cause the satellite radio to go into bypass. The satellite radio operation can be recovered by a
hard-reset to the receiver; however, this condition may reoccur.
Remedy:
Use DAS version 06/09 or newer and telematics CD # 171 827 40 59 ES2:0001 to update the revelent telematics components. The satellite
Radio/HD Turner version will be 47/08.
Software update process:
1. Connect a battery charger and DAS. DAS must be connected at all times and throughout the update process.
2. Do NOT disconnect DAS at all during the update process, this can corrupt the flash and render the head unit's operation unrecoverable even if you
Mercedes Benz Truck R 320 BLUETEC
Page 333
perform a hard-reset on the head unit during software the update process
3. Start the telematics update by selecting COMAND > control unit adaptations > control module programming, follow DAS prompts.
While DAS is searching the telematics CD for the proper application software for Head unit such as DVD mechanism, Bluetooth, navigation, voice
control or for other telematics components such as sound amplifier, UCI, satellite radio/combi turner it may display this message "Software
Missing". This id normal. <br style="font-style:italic," /> Do NOT interrupt or restart the update process, or other wise the head unit can get
corrupted.
Software update process bar may not indicate the elapsed time/time remaining for the update. Even if the process bar does not seem to be changing,
the update process is taking place in the background. Please be patient, do not interrupt the process and allow DAS to continue through until the
process is complete and you are prompted by DAS to eject the telematics CD from the head unit.
4. During the update, the telematics system will reset (restart) a few times, this is normal.
5. After update is complete and SCN coding is carried out, delete DTCs and check for correct functionality
Telematics components bypass notes:
Telematics components are specified go into bypass (self protection) when sensing an under-voltage condition of 10.6 V or lower. Due to a software
error in the satellite radio, it is more susceptible to go into bypass before any other telematics components even if the voltage supply to the receiver
is over the low voltage threshold. As a result a "device unavailable" message is despayed on the head unit.
Symptoms
Mercedes Benz Truck R 320 BLUETEC
Page 334
Validity
