Comand does not power on
Thread Starter
Junior Member
Joined: Oct 2013
Posts: 21
Likes: 0
S320L CDI
Comand does not power on
I need your help guys.
My comand system does not seem to be turning on.
I have an NTG3 system.
My friend was installing a VIM interface for me and when he reconnected the system, it does not power on. He has assured me that he followed the instructions correctly. Does anyone know what the issue could be? I'm hoping for something simple. I have just purchased the car so this is a major blow!
My comand system does not seem to be turning on.
I have an NTG3 system.
My friend was installing a VIM interface for me and when he reconnected the system, it does not power on. He has assured me that he followed the instructions correctly. Does anyone know what the issue could be? I'm hoping for something simple. I have just purchased the car so this is a major blow!
Thread Starter
Junior Member
Joined: Oct 2013
Posts: 21
Likes: 0
S320L CDI
I was told that the car power was not off when installing so i am worried that this maybe the cause.
Where can i find info on the fuse locations? As i bought the car used I cannot find the sheet in the wheel well.
Senior Member
Joined: Jul 2011
Posts: 258
Likes: 2
S550
Last edited by Atcpup; Nov 8, 2013 at 12:22 AM. Reason: wrong info given
Thread Starter
Junior Member
Joined: Oct 2013
Posts: 21
Likes: 0
S320L CDI
I managed to get the fuse diagram off the dealership but the problem is the fuses do not tally up with the diagram. I have been told to check fuse 73. When i check the fuse box there is no fuse in that position!!
Could it be plugged in elsewhere?
Could it be plugged in elsewhere?
MBWorld Fanatic!
Joined: Dec 2006
Posts: 6,499
Likes: 335
From: Europe
223.168 & 213.012 & 906.633 & 214.005
73 is the fuse for cars that have the option code 498, I doubt you would have that. Did someone from the dealership propose you this fuse?
MBWorld Fanatic!
Joined: Jan 2011
Posts: 1,747
Likes: 20
From: Central Pennsylvania
2012 S350 Bluetec 4Matic, Diamond White, P2
I would have your friend recheck his connections. Mistakes happen no matter how careful and thorough we think we are. It definitely sounds like a mis-wiring issue.
Trending Topics
Newbie
Joined: Nov 2015
Posts: 3
Likes: 0
Mercedes 2007 S550
Hi guys, I'm in the same situation. I have tried to clean the DVD lens and after installing the comand unit it is dead, the screen is totally black. I've checked the connections many times and checked all fuses as well but no luck. Any ideas?
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
MBWorld Fanatic!
Joined: Mar 2005
Posts: 1,033
Likes: 77
From: Wash. D.C.
'20 S63
On my '08 CL the fuse is located in the trunk, behind the rear seat panel.
MBWorld Fanatic!
Joined: May 2008
Posts: 7,653
Likes: 560
2016 C300
There are multiple fuses that service COMAND, in several locations. In my 2010 they were in the passenger side dash end cap, under the hood on the drivers side and behind the rear seat center armrest.
Former Vendor of MBWorld
Joined: Aug 2015
Posts: 102
Likes: 0
From: NYC
NavTool
Most likely your issues is VIM not properly connected or simply not suitable for your car.
PM if you need further assistance
MBWorld Fanatic!
Joined: Mar 2005
Posts: 1,033
Likes: 77
From: Wash. D.C.
'20 S63
This is true, however I was speaking of the fuse for the Command Control Unit.
MBWorld Fanatic!
Joined: Jul 2007
Posts: 1,904
Likes: 29
S350 BT 4MATIC
Get one of the videos on youtube or on this website showing the install of your brand of VIM on a W221. Then check the install with your friend.
Last edited by Nuru; Nov 15, 2015 at 12:30 PM.
Junior Member
Joined: Oct 2015
Posts: 71
Likes: 11
2007 S500 4Matic
Hi, can you give me the first 6 digits in you vin ie 221xxx.
I'll look up what circuit diagram suits your car and post a screen cap so you can check for power at the back of the command unit properly. It will also show what fuses go to it.
Another thing is it may be a CAN-BUS error with wires connected backward (that is if the bus was tapped).
Cheers.
I'll look up what circuit diagram suits your car and post a screen cap so you can check for power at the back of the command unit properly. It will also show what fuses go to it.
Another thing is it may be a CAN-BUS error with wires connected backward (that is if the bus was tapped).
Cheers.
MBWorld Fanatic!
Joined: May 2008
Posts: 7,653
Likes: 560
2016 C300
^ Cool. He'll need the second part of that, it shows where the fuse blocks for each of those is, and the location of each fuse within the block. #73 I believe is in the right side dash panel. The others are under the hood on the drivers side, or in a panel behind the center armrest in the back seat.
Senior Member
Joined: Aug 2014
Posts: 369
Likes: 1
From: Toronto, Canada
2011 Mercedes S63 AMG
^ Cool. He'll need the second part of that, it shows where the fuse blocks for each of those is, and the location of each fuse within the block. #73 I believe is in the right side dash panel. The others are under the hood on the drivers side, or in a panel behind the center armrest in the back seat.
Junior Member
Joined: Oct 2015
Posts: 71
Likes: 11
2007 S500 4Matic
Hi, sorry for my previous post asking for part of the vin but forgot US vin's are different to Euro vin's so that wont help me in WIS (workshop information system).
Both the main command unit and the command center display are supplied by single 12v feeds. They do not work like the old car stereos where there are separate battery feed and ignition feed.
The system is normaly in a sleep mode and is woken up by either a CAN Bus message or a CAN/MOST bus wake line.
Please note If you have a BUS or BUS Termination problem even if everything is properly power you will still get nothing. BTW Look up "Bus Termination" on wiki to understand what it is.
Refer to attached diagrams (this is for the facelift 2010-> as shown in the above fuse layouts.)
Plugs are usually numbers on the back of each unit and pins are also numbers but you may need a magnifying glass to see some of them.
If your on a PC centre click mouse on the image thumbnail to get full size image in new tab.
Hope this helps.
Cheers.
Both the main command unit and the command center display are supplied by single 12v feeds. They do not work like the old car stereos where there are separate battery feed and ignition feed.
The system is normaly in a sleep mode and is woken up by either a CAN Bus message or a CAN/MOST bus wake line.
Please note If you have a BUS or BUS Termination problem even if everything is properly power you will still get nothing. BTW Look up "Bus Termination" on wiki to understand what it is.
Refer to attached diagrams (this is for the facelift 2010-> as shown in the above fuse layouts.)
Plugs are usually numbers on the back of each unit and pins are also numbers but you may need a magnifying glass to see some of them.
If your on a PC centre click mouse on the image thumbnail to get full size image in new tab.
Hope this helps.
Cheers.
Junior Member
Joined: Sep 2010
Posts: 48
Likes: 2
From: Johannesburg, South Africa
Various Fiat
The decent VIM interfaces on the market a have plug and play system where there is no need to cut the car wiring. Remove the VIM module, restore the original setup in the car and check if everything works as intended. Then carry on with the job.
Newbie
Joined: Nov 2015
Posts: 3
Likes: 0
Mercedes 2007 S550
Thanks guys for your responses and diagrams. It seems that the problem in the comand unit itself not the wiring inside the car. I have installed another comand unit from another car and everything works, so I have to repair this unit or buy another one.
Junior Member
Joined: Oct 2015
Posts: 71
Likes: 11
2007 S500 4Matic
Bummer, that really sucks. Maby it was static discharge when the other unit was installed?? If the HDD has failed I would offer to clone the one in mine but it's a euro model and not sure if it would work in your unit being a US version.
Cheers.
Cheers.
Junior Member
Joined: May 2016
Posts: 46
Likes: 3
From: Spangdahlem, Germany
2011 W221 S550 4MATIC, 2000 W202 C180 WAGON, 1998 W210 E240
Where did you get your other unit and did the dealer have to reprogram it?
Junior Member
Joined: May 2019
Posts: 30
Likes: 1
Mercedes Benz S550
Hi, sorry for my previous post asking for part of the vin but forgot US vin's are different to Euro vin's so that wont help me in WIS (workshop information system).
Both the main command unit and the command center display are supplied by single 12v feeds. They do not work like the old car stereos where there are separate battery feed and ignition feed.
The system is normaly in a sleep mode and is woken up by either a CAN Bus message or a CAN/MOST bus wake line.
Please note If you have a BUS or BUS Termination problem even if everything is properly power you will still get nothing. BTW Look up "Bus Termination" on wiki to understand what it is.
Refer to attached diagrams (this is for the facelift 2010-> as shown in the above fuse layouts.)
Plugs are usually numbers on the back of each unit and pins are also numbers but you may need a magnifying glass to see some of them.
If your on a PC centre click mouse on the image thumbnail to get full size image in new tab.
Hope this helps.
Cheers.
Both the main command unit and the command center display are supplied by single 12v feeds. They do not work like the old car stereos where there are separate battery feed and ignition feed.
The system is normaly in a sleep mode and is woken up by either a CAN Bus message or a CAN/MOST bus wake line.
Please note If you have a BUS or BUS Termination problem even if everything is properly power you will still get nothing. BTW Look up "Bus Termination" on wiki to understand what it is.
Refer to attached diagrams (this is for the facelift 2010-> as shown in the above fuse layouts.)
Plugs are usually numbers on the back of each unit and pins are also numbers but you may need a magnifying glass to see some of them.
If your on a PC centre click mouse on the image thumbnail to get full size image in new tab.
Hope this helps.
Cheers.
Hello Greg,
Pls will this information work for 2008 S550? command unit not coming on with ignition. Except i press the ON button on the joystick
