Rear Turn Signal Problem
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 21
Likes: 5
From: Montreal
2007 ml 500 (w164)
Rear Turn Signal Problem
Been on this site many, many hours using its invaluable information for fixing just about everything that has gone wrong with my 2007 ml500 except for this new problem. Can't seem to figure it out.
problem: right rear turn signal does not function
tried: changed bulb,
sanded connections,
tested socket with light tester with flasher on (no power),
unplugged cluster and tested plug with light tester with flasher on (no power at any pins),
unplugged left side cluster and tested plug with light tester with left flasher on (power at 2nd pin),
took SAM apart - looks good, no corrosion,
read codes got "component E4e1(right turn signal lamp) or the line to the component has a short circuit to positive or open circuit",
with tester on live mode Rear SAM it displays "E4e1 the right turn signal lamp" going off on off on.
Could someone please point me in the direction I should be going. Thought it might be the SAM but seems to pass the test, maybe I'm reading it wrong.
Thanks
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Go to the rear SAM and locate conn. "D", wire #6 Grn/Blk.
Using a test light properly grounded, touch pin and have someone turn on right signal. What are the results?
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 21
Likes: 5
From: Montreal
2007 ml 500 (w164)
I will try as you mentioned and report back later after work.
Am I correct to assume it should be flashing?
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 21
Likes: 5
From: Montreal
2007 ml 500 (w164)
What is the message on the Instrument Cluster?
-Turn signal rear right-
Did not check codes for all modules
Had a helper cycle the key and put on turn signal. No flashing at pin #6 on the SAM or any other pin while right turn signal in on. Left turn signal flashed at its' pin (#1?) with left turn signal on.
Same results when I have 4 way flashers on.
-Turn signal rear right-
Did not check codes for all modules
Had a helper cycle the key and put on turn signal. No flashing at pin #6 on the SAM or any other pin while right turn signal in on. Left turn signal flashed at its' pin (#1?) with left turn signal on.
Same results when I have 4 way flashers on.
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Trending Topics
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
2006-2009 MLs had faulty tail lamp seals installed at the assembly plant. You will have to check for water intrusion in the spare tire area. See my post just a few days ago.
https://mbworld.org/forums/m-class-w...ml#post7589072
https://mbworld.org/forums/m-class-w...ml#post7589072
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
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 21
Likes: 5
From: Montreal
2007 ml 500 (w164)
I was in there changing my shock absorbers at the same time so I have a good space to see the SAM and it's surroundings. No water in the space.
I removed the SAM and opened it up to check for corrosion, the board was perfectly clean.
I removed the SAM and opened it up to check for corrosion, the board was perfectly clean.
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 21
Likes: 5
From: Montreal
2007 ml 500 (w164)
I have no flashing on pin #6 (or on any other pin) when turn signal is on. Placed properly grounded tester directly on pin #6. Any other suggestions? Why does the OBD scanner show the turn signal going on and off, on and off but in reality the SAM is not sending any current to the bulb?
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
I have no flashing on pin #6 (or on any other pin) when turn signal is on. Placed properly grounded tester directly on pin #6. Any other suggestions? Why does the OBD scanner show the turn signal going on and off, on and off but in reality the SAM is not sending any current to the bulb?
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 21
Likes: 5
From: Montreal
2007 ml 500 (w164)
Retested with similar results:
driver side turn signal on: power @ harness (black wire)
power @ SAM 1st pin right
Passenger side turn signal on: no power @ harness all wires
no power @ SAM all pins
Hazard flasher on: power @SAM 1st pin only
Exterior lighting live data on scanner shows passenger flasher going on and off
dash cluster shows right turn signal fault
Scanner shows stored fault9133, same fault as shown in previous posts.
Should I be checking anywhere else?
driver side turn signal on: power @ harness (black wire)
power @ SAM 1st pin right
Passenger side turn signal on: no power @ harness all wires
no power @ SAM all pins
Hazard flasher on: power @SAM 1st pin only
Exterior lighting live data on scanner shows passenger flasher going on and off
dash cluster shows right turn signal fault
Scanner shows stored fault9133, same fault as shown in previous posts.
Should I be checking anywhere else?
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
How long does it take to see if it blinks?
And don't think about jumping the wires because the size of the wires are different.
Do all the other lights on the right tail lamp work?
And don't think about jumping the wires because the size of the wires are different.
Do all the other lights on the right tail lamp work?
Last edited by Maj. Dundee; Nov 17, 2018 at 06:35 AM.
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
S4s1 controls the right and left turn signals. Meaning one wire controls the right and left turn signals. It could very well be that the switch is not sending a signal to the rear SAM for right turns.
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 21
Likes: 5
From: Montreal
2007 ml 500 (w164)
Can I test at the rear SAM to determine if it is getting a "turn right" command from the switch on the steering wheel?
Curious of where my scanners "live data" gets its info from.
Live data from rear SAM shows flasher working????
Curious of where my scanners "live data" gets its info from.
Live data from rear SAM shows flasher working????
