C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Yaw rate sensor

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Old Oct 31, 2020 | 12:29 AM
  #1  
MJ Taylor's Avatar
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From: Austin and Corpus Christi, Texas
2002 C320 wagon, 2000 E320 4matic wagon
Yaw rate sensor

Ok so I’m driving and I notice the steering wheel is way off bad. So I try to correct it and the car obviously turns in that direction but the steering wheel feel is kinda “loose”. So when I straighten the wheels up, the car starts to bounce left and right almost fishtailing. Scared the crap out of me. Drove it a couple times after that and each time it did the same thing.

I replaced the yaw and the turn sensors in back plus the steering angle sensor.

now I can’t clear any codes related to these three things and I really need your help.

these are the codes that just came out my Foxwell scanner:
C1022-1. CAN BUS fault. Can communication with engine is faulty
C1149-2. Supply voltage if B24/2 (lateral acceleration sensor)—-supply voltage of N64(yaw rate sensor—power supply B34/1 ESP pressure sensor——Ofer B34/2 ESP pressure sensor #2—-short circuit to ground.
C1120-1. N64 ESP yaw rate sensor electrical fault
C1140-4. N49 steering angle sensor signal does not exist
C1142-1. B24/2 ESP lateral acceleration sensor electrical fault
C1142-4 B24/2 ESP lateral acceleration sensor Zero point variation

can someone point me in the right direction? I am going crazy and getting very anxious about this car working again (or not).

oh and PS, please don’t hijack my post: no one has time for that.
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Old Oct 31, 2020 | 12:38 AM
  #2  
Russell Ormerod's Avatar
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not a merc
First fix the mechanical issues!
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Old Oct 31, 2020 | 05:32 PM
  #3  
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Hmmm....
I think I'd put it back the way it was before you replaced everything and then replace one thing at a time.
So what errors did you have BEFORE you replaced everything? What made you think replacing all that stuff as going to accomplish anything?
Did you check the suspension? Steering column? Only way the steering column would be 'loose' if you were replacing the starter and didn't reconnect it.
Like here...


Where did these parts come from? Used or new? So you think the ESP is activating the brakes by itself, is that why you replaced all that stuff?
Like I said I had bad Yaw sensor for years and it just gave me an ESP error but didn't cause any unusual behavior.
I had a wheel sensor go bad, and it made the car go into a sort of limp mode. But nothing like you describe.

I've replaced the Yaw sensor for ESP error and it was plug and play.
Also had my steering wheel off a couple times, also no issues just cleared the SRS error and turned the wheel lock to lock 3 times.
There is a procedure to make sure the spring is set right before re- installing somewhere around here that I posted.

You will need something that can clear those errors like
iCarsoft. Does Foxwell scanner read Mercedes specific codes and clear them?

Last edited by C230 Sport Coup; Oct 31, 2020 at 05:46 PM.
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Old Oct 31, 2020 | 10:27 PM
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No electronics will make the car do what you're describing there. Sounds like a major mechanical issue. Bring it to a shop ASAP before something bad happens.
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Old Nov 1, 2020 | 11:00 AM
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@MJ Taylor The vehicle you describe has major mechanical problems. Fix them for your own safety and the safety of others.
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Old Nov 1, 2020 | 04:20 PM
  #6  
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From: Austin and Corpus Christi, Texas
2002 C320 wagon, 2000 E320 4matic wagon
If it didn’t happen to me as I was driving I wouldn’t believe it either

Originally Posted by C230 Sport Coup
Hmmm....
I think I'd put it back the way it was before you replaced everything and then replace one thing at a time.
So what errors did you have BEFORE you replaced everything? What made you think replacing all that stuff as going to accomplish anything?
Did you check the suspension? Steering column? Only way the steering column would be 'loose' if you were replacing the starter and didn't reconnect it.
Like here...
https://www.youtube.com/watch?v=l2cXPxsB8PY


Where did these parts come from? Used or new? So you think the ESP is activating the brakes by itself, is that why you replaced all that stuff?
Like I said I had bad Yaw sensor for years and it just gave me an ESP error but didn't cause any unusual behavior.
I had a wheel sensor go bad, and it made the car go into a sort of limp mode. But nothing like you describe.

I've replaced the Yaw sensor for ESP error and it was plug and play.
Also had my steering wheel off a couple times, also no issues just cleared the SRS error and turned the wheel lock to lock 3 times.
There is a procedure to make sure the spring is set right before re- installing somewhere around here that I posted.

You will need something that can clear those errors like
iCarsoft. Does Foxwell scanner read Mercedes specific codes and clear them?
FIRST, I am no idiot. I have been working on Mercedes for years and have owned over 20 vehicles. I buy and sell them and have a business repairing them.

SECOND, assuming I just totally dismantled the car like some child is utterly insulting. That’s what makes the world a horrible place—-assumptions and comments like that. Yes there are people out there that might do that but not I.

THIRD, Foxwell DOES have Software to clear Mercedes codes. I have the scanner and the multiplexer to prove it. I had scanned the car Before replacing parts and after.

FOURTH, maybe just plug and play worked for you but it didn’t for me. You think I’d post here if it did just to have some know it all (who doesn’t know it all) respond to me in the way you did?

FIFTH, every single part in the suspension I replaced WAS NOT USED. All brand new. And I did the replacement to eradicate the excessive squeaking in the 18 year old car. I figured the car deserved new bushings and suspension after 18 years. I maintain my Mercedes (all 4 of them) constantly and to perfection. That’s why this problem I’m having is making me crazy. And repeating the turning the steering wheel to clear codes is elementary. Come on bro, give me a break.
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Old Nov 1, 2020 | 04:25 PM
  #7  
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From: Austin and Corpus Christi, Texas
2002 C320 wagon, 2000 E320 4matic wagon
Originally Posted by chassis
@MJ Taylor The vehicle you describe has major mechanical problems. Fix them for your own safety and the safety of others.
THATS WHY IM ASKING QUESTIONS HERE!! To help fix my car!! I have never encountered anything like this in my 20 years of Mercedes ownership.

You would think fellow Mercedes owners would try and help one another instead of having this “better than you” attitude. I swear, you people make me not even want to be a part of this forum anymore. No one really helps anyway.
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Old Nov 1, 2020 | 04:33 PM
  #8  
MJ Taylor's Avatar
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From: Austin and Corpus Christi, Texas
2002 C320 wagon, 2000 E320 4matic wagon
Slammer111. The car had never done this before so I dont know what “mechanical issues” to look for. The wheels are all aligned. All full to the correct pressure. The brakes working perfectly. No
“malfunction” warnings. So what mechanical issues do YOU think it could be? That’s why I’m asking questions. For advice. To learn. Not for stupid comments like “FIX THE MECHANICAL ISSUES!!!”. How is that good advice or helping? Let’s see if one day someone says **** like that to your kid if it would be ok or not.
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Old Nov 1, 2020 | 04:35 PM
  #9  
MJ Taylor's Avatar
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From: Austin and Corpus Christi, Texas
2002 C320 wagon, 2000 E320 4matic wagon
Oh and those codes are for real. Not made up or make believe. For real. Idk If short circuit to ground qualifies as mechanical or not. Enlighten me
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Old Jan 4, 2022 | 12:28 PM
  #10  
Mikeysentra's Avatar
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2001 c240
I had several codes like this that were all ghost codes due to a dying battery. I would start by replacing the battery; clearing all codes in all modules and driving the car and see what pops up.
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Old Apr 5, 2022 | 06:11 AM
  #11  
Marcil802's Avatar
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Joined: Jun 2021
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From: Quebec Canada
C300 2010 4matic
Originally Posted by MJ Taylor
Oh and those codes are for real. Not made up or make believe. For real. Idk If short circuit to ground qualifies as mechanical or not. Enlighten me
first of you are asking for help, and you are being hard on the ones asking questions to help you. 2nd if you keep bragging on how good you are maybe you should understand de basic of your scanner.

Now, does the car seems to be bouncing all over then back straight?
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Old Apr 5, 2022 | 06:15 AM
  #12  
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From: Quebec Canada
C300 2010 4matic
Originally Posted by MJ Taylor
Ok so I’m driving and I notice the steering wheel is way off bad. So I try to correct it and the car obviously turns in that direction but the steering wheel feel is kinda “loose”. So when I straighten the wheels up, the car starts to bounce left and right almost fishtailing. Scared the crap out of me. Drove it a couple times after that and each time it did the same thing.

I replaced the yaw and the turn sensors in back plus the steering angle sensor.

now I can’t clear any codes related to these three things and I really need your help.

these are the codes that just came out my Foxwell scanner:
C1022-1. CAN BUS fault. Can communication with engine is faulty
C1149-2. Supply voltage if B24/2 (lateral acceleration sensor)—-supply voltage of N64(yaw rate sensor—power supply B34/1 ESP pressure sensor——Ofer B34/2 ESP pressure sensor #2—-short circuit to ground.
C1120-1. N64 ESP yaw rate sensor electrical fault
C1140-4. N49 steering angle sensor signal does not exist
C1142-1. B24/2 ESP lateral acceleration sensor electrical fault
C1142-4 B24/2 ESP lateral acceleration sensor Zero point variation

can someone point me in the right direction? I am going crazy and getting very anxious about this car working again (or not).

oh and PS, please don’t hijack my post: no one has time for that.
have you tested your Sam's module? Could there be water? Maybe it's the 12vto 5v converter
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