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Major ABC Codes HELP NEEDED

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S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

Major ABC Codes HELP NEEDED

 
Old 06-05-2018, 05:13 PM
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2001 S600
Exclamation Major ABC Codes HELP NEEDED

Hi guys I'm new to this forum and recently bought a 2001 S600. I drove her around for a week and she's been doing great but after the week went by, I started her up one morning and the ABC light came on in red and said "Active Body Control; ABC; Drive Carefully!" I was running late so i decided to drive slowly to work, and in the beginning the ride was very bouncy and it felt like driving a car with shot shocks. The rear was pretty low but still drive-able, after about 5-10 kms later, the car seemed very high off the ground and the struts had locked themselves up at the highest height. I drove around for a week trying to figure out what to do and researched here and had got the car scanned as well. The codes it threw were all four height sensor codes (the car was lowered with a module so didn't think anything of that), all 4 accelerometer sensors, and an ABC Pressure Sensor code. Iv attached a picture with all the codes. Me not knowing much about the ABC system, went ahead and paid an arm and a leg for the full pressure sensor valve unit that has the accumulator and sensor as well. I just installed it today and the codes are still showing up. I was wondering if anyone could push me to the right direction, is it the ABC control module thats not working? Could it be wiring issues? (I think its not because there are so many different sensors going off which leads me to believe its the control module).
If someone could help out that would be great before i give my other leg and arm up for sale for another part lol.
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Old 06-05-2018, 07:57 PM
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To understand the system go to startekinfo.com go to WIS
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Old 06-05-2018, 09:00 PM
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Did you check abc fluid level ? How old is your battery and did you check all connections for corrosion at the battery and under the front passÚnger carpet where the main fuses are located ?

Bad electrical connections and low voltage problems are most often responsible for the errors you describe . Locking up high is a protection feature
you might need SDS computer to unlock it after changing the parts as the red error message causes a permanent fault requiring the factory computer to reset

also I would get the 4 height sensors , the little modules on the strut tops , get used ones from ebay with the same part number as new ones have a different part number and some compatibility issues

Last edited by tusabes; 06-05-2018 at 09:02 PM.
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Old 06-05-2018, 11:19 PM
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@Plutoe I dont have a username or password to access that site. Is there anyway i can get a username and password?

@tusabes The fluid level is good, I even topped it off as it was incrementally low, and I just bought the car a month ago so don't really know how old the battery is. Is there a way to check? and whats the proper way to replace the battery as iv heard of the rear modules shorting from battery replacements. Could you also point me to the right direction as to where the main fuses are under the front passenger carpet and how to access that? I thought the main fuses were in the engine bay. Also, where could i get a hold of a SDS computer without going to the dealer?
The height sensors i think are going off as the car is lowered so the sensors reads that the cars height is lower when i did it on purpose.
Sorry if i sound like a noob because I am LOL
Thank you both!!
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Old 06-05-2018, 11:27 PM
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I had my car randomly set a code for a longitudinal travel sensor, I re-calibrated and rodeo'd and it has been fine since. I would be concerned that all of them have faults, i'd start with checking the power supply to them, or possibly to the ABC controller itself.

Take it to a shop, this system is above the level of the backyard tech if you don't have access to the proper diagrams and diagnostic tools.
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Old 06-06-2018, 10:04 AM
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Originally Posted by ItalianJoe1 View Post
I had my car randomly set a code for a longitudinal travel sensor, I re-calibrated and rodeo'd and it has been fine since. I would be concerned that all of them have faults, i'd start with checking the power supply to them, or possibly to the ABC controller itself.

Take it to a shop, this system is above the level of the backyard tech if you don't have access to the proper diagrams and diagnostic tools.
Thanks. Did you re-calibrate and rodeo it yourself, if so how did you go about doing that?
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Old 06-06-2018, 03:48 PM
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Here is where the main fuses are located
https://youtu.be/Jb_7E-Z5D7g

the battery is in the trunk right side and has a date code printed on it. Proper way to charge is to disconnect it from the car then charge it while not attached to the car . If the date code is more than 3 years old just replace it as these cars get all kinds of electrical errors with older batteries

Last edited by tusabes; 06-06-2018 at 03:52 PM.
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Old 06-06-2018, 07:48 PM
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Originally Posted by NavalS View Post
Thanks. Did you re-calibrate and rodeo it yourself, if so how did you go about doing that?
I'm a tech at MB, so yes I did it myself but using a factory scanner.
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