s420 speedo not working
#1
Newbie
Thread Starter
Join Date: Feb 2013
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
03 monte carlo ss
s420 speedo not working
Helping a friend ..speedo is not working and without some understanding of how it gets its signal i can't help. Does the wheel speed sensors report to the traction control module which then sents an analog signal to the speedo? I have a broken 2 conductor wire exiting the hood at the drivers side and a matching wire that goes into the fire wall possibly to the speedo...Not sure.but the onl other wire exiting the hood on the passenger side is in fact a 2 conductor but the wires are different colors and the loom/sheathing is much different than the wires leaving the drivers door...I realize this may seem a jumbled mess but if any one could set me straight i'd appreciate it
#2
There if a fuse in what is called a coffin box on the passenger side of the engine bay. You have too take the lid off with four TORX bolts holding the lid down. Once the bolts and the lid is removed, you will see 4 10 amp fuses. I believe the second one in from the left is blown. Go ahead and replace it. This should fix your problem.
#3
Member
Join Date: Apr 2011
Location: Northbridge, Ma.
Posts: 103
Likes: 0
Received 4 Likes
on
3 Posts
94 S420,95 S500 ,96 S500
Helping a friend ..speedo is not working and without some understanding of how it gets its signal i can't help. Does the wheel speed sensors report to the traction control module which then sents an analog signal to the speedo? I have a broken 2 conductor wire exiting the hood at the drivers side and a matching wire that goes into the fire wall possibly to the speedo...Not sure.but the onl other wire exiting the hood on the passenger side is in fact a 2 conductor but the wires are different colors and the loom/sheathing is much different than the wires leaving the drivers door...I realize this may seem a jumbled mess but if any one could set me straight i'd appreciate it
#4
Senior Member
Join Date: Mar 2007
Location: Winnipeg, MB Canada
Posts: 281
Likes: 0
Received 1 Like
on
1 Post
'13 MB GL350 BLUETEC, '10 MB E63 AMG, '95 MB S600, '84 MB 380 SEL
There if a fuse in what is called a coffin box on the passenger side of the engine bay. You have too take the lid off with four TORX bolts holding the lid down. Once the bolts and the lid is removed, you will see 4 10 amp fuses. I believe the second one in from the left is blown. Go ahead and replace it. This should fix your problem.