Diagnostis Trouble Codes - HELP!!

Discussion in 'Engine' started by tflda29, Aug 14, 2011.

  1. tflda29

    tflda29 New Member

    Messages:
    26
    Joined:
    Aug 16, 2010
    Location:
    Oldmeldrum, Aberdeenshire
    Car:
    ML270 CDi 2002
    Hello All,

    Have been having trouble with gearbox going into limp home mode straight away and BAS, ESP, ABS and EPC lights on. I bought an Autoenginuity scanner with the enhanced Merceds package cleared all codes then read after short drive and got the following codes and wondered if anyone could help:-

    ASR:-
    C1101 RPM Sensor Fr
    C1102 RPM Sensor Rl
    C1103 RPM Sensor Rr
    C1000 Control Module
    C1140 Steering Angle Sensor N49
    C1141 Brake Pressure Sensor B34 Plausibility

    BAS:-
    C1000 Control Module N48
    C1025 CAN Signals ABS not available
    C1203 BAS Read switch A7/7s1 Redundancy
    C1207 Brake Light Swith S9/1 Plausibility (Replaced a few months back)

    Electronic Gear selection:-
    P1861 The left rear wheel RPM signal is implausible (No code before driving)

    Enhanced Powertrain:-
    2203 Torque reduction message from ABS/ESP - error
    0500 Vehicle speed sensor - Invalid CAN Mesage

    Transmission:-
    2402 The right front wheel RPM signal is implausible
    2401 The left rear wheel RPM signal is implausible (Not there before driving)

    I am stuck as to what to do next and would rally appreciate some pointers in the right direction as to what all the above means and anything i can test or try to eliminate or identify the problem.
    Sorry for such a long post.

    thanks
    Trevor
     
  2. OP
    OP
    tflda29

    tflda29 New Member

    Messages:
    26
    Joined:
    Aug 16, 2010
    Location:
    Oldmeldrum, Aberdeenshire
    Car:
    ML270 CDi 2002
    Update

    All,

    Just to update, I changed the rear left ABS sensor as a couple of codes pointed to that. Also i was getting no reading from the front right sensor at all and this turned out to be a loose connector. Once i cleared all the codes and reset the steering wheel and went for a drive all the lights went out and gearbox changed as normal.

    The only codes remaining are the ASR and the BAS ones so not sure whats going n there. Think i may need a new battery as noticed that the voltage dropped to 9.3v on first crank after the car had sat a while and the red handbrake light would stay on. If left to run for a minute then switched off and started the voltage never dropped below 11.5v.

    Over the moon as the BAS/esp/ecp/abs lights habe been on for ages now...

    cheers
    Trevor
     
  3. OP
    OP
    tflda29

    tflda29 New Member

    Messages:
    26
    Joined:
    Aug 16, 2010
    Location:
    Oldmeldrum, Aberdeenshire
    Car:
    ML270 CDi 2002
    :dk:

    77 views and no replies!! Have i done something wrong? :(:(
     
  4. SPX

    SPX MB Club Veteran

    Messages:
    16,014
    Joined:
    Aug 29, 2010
    Location:
    Yorkshire
    Car:
    That one
    You haven't done anything wrong to me, but I can't help you I'm afraid....:rock:
     
  5. OP
    OP
    tflda29

    tflda29 New Member

    Messages:
    26
    Joined:
    Aug 16, 2010
    Location:
    Oldmeldrum, Aberdeenshire
    Car:
    ML270 CDi 2002
    Fair enough...thanks for replying though....:D
     
  6. bob_corinna

    bob_corinna New Member

    Messages:
    21
    Joined:
    Aug 15, 2011
    Location:
    devon
    Car:
    C250 diesel
    it does look like the abs sensors front right, rear left, rear right and yes a dying battery can flag up messages like this because when you crank the engine it draws a lot of current which deprives other vehicle systems of power.
     
  7. Danny DeVito

    Danny DeVito Active Member

    Messages:
    886
    Joined:
    Nov 1, 2009
    Location:
    Ireland
    Car:
    V220 CDI
    Still got all of these ? What car have you ? Recent post there about c1000 fault BAs

    Check codes again please and post
     
  8. OP
    OP
    tflda29

    tflda29 New Member

    Messages:
    26
    Joined:
    Aug 16, 2010
    Location:
    Oldmeldrum, Aberdeenshire
    Car:
    ML270 CDi 2002
    Hi thanks for replies....have cleared codes but still getting these ones up. Occasionally the yellow triangle on the dash flashes when going slowly and a grinding can be felt through the brake pedal. Not sure whats going on there as if its abs kicking in i thought the abs light would have come on to show a problem.....
     
  9. DSM10000

    DSM10000 MB Enthusiast

    Messages:
    6,888
    Joined:
    Jul 12, 2011
    Location:
    Near Salisbury
    Car:
    E32O CDi Sport, MX5 1.8 Sport, RR 4.2 SC
    Have you treid swopping the battery for a known good one? Modern cars need a stable and smooth supply of power to operate properly and a failing battery will not provide that and that in turn can provoke a lot of otherwise random faults and associated codes. I have had a similar scenario on a previous car with CAN bus electronics.
     
  10. dokalj

    dokalj MB Enthusiast

    Messages:
    1,530
    Joined:
    Feb 23, 2009
    A STAR machine would diagnose the cause. I would find a local indy because at the moment you are playing a guessing game.

    I wish you luck.

    dokalj
     
  11. OP
    OP
    tflda29

    tflda29 New Member

    Messages:
    26
    Joined:
    Aug 16, 2010
    Location:
    Oldmeldrum, Aberdeenshire
    Car:
    ML270 CDi 2002
    Thanks guys. I have not tried a different battery yet but if this can give these problems then it may just be that as the diagnostic machine i have did show a lowish voltage during cranking...around 9.5v

    I have a Mercedes enhanced diagnostic kit so trying to avoid paying for star as that was expensive enough with the idea being i would not hopefully need star....fingers cossed its just the battery.

    thanks again
    Trevor
     
  12. Danny DeVito

    Danny DeVito Active Member

    Messages:
    886
    Joined:
    Nov 1, 2009
    Location:
    Ireland
    Car:
    V220 CDI
    So all ten faults are still there for sure ? even after a new sensor etc. Locate your BAS module and check for corrosion/ moisture in and around the unit. If you tell me your car type i may be able to tell you where it is . I dont think star machine will tell you anymore than what you have already. Certainly i would replace the battery though if its old and not seeming to hold voltage.
     
  13. OP
    OP
    tflda29

    tflda29 New Member

    Messages:
    26
    Joined:
    Aug 16, 2010
    Location:
    Oldmeldrum, Aberdeenshire
    Car:
    ML270 CDi 2002
    Hi Danny,

    yes all 10 faults still there. It is a 2002 ML270 (w163). Would be good to know where module is as there seem to be a few.

    thanks
    Trevor
     
  14. Tinkerer

    Tinkerer Active Member

    Messages:
    391
    Joined:
    May 5, 2011
    Location:
    Norfolk
    Car:
    W210 E220 CDi
    When I had a problem with my 2001 E220 CDi not starting MB were called out under the mobilo life warranty and while it was plugged into his star machine he was trying to start it with no starter motor activity his unit reported that the battery voltage had dropped below 10.5V and was too low! I guess that the starter had gone south and taken the battery out, anyway they replaced both and it has been OK since .......... famous last words. Strange but I did not have any warning lights come up on the dash.
     
  15. grober

    grober MB Master

    Messages:
    27,838
    Joined:
    Jun 22, 2003
    Location:
    Perth, Scotland
    Car:
    W204 C200CDI Estate
    Took you 13 posts to tell us what model of MERCEDES you have!:wallbash: Don't worry its a pretty common first time poster fault. We ain't psychic you know.;) On the battery thing-- change it /get a new one- modern Mercedes are so dependent on electronics its a no-brainer if you suspect it's more than 3 years old. You may find all your faults will disappear.
     
  16. OP
    OP
    tflda29

    tflda29 New Member

    Messages:
    26
    Joined:
    Aug 16, 2010
    Location:
    Oldmeldrum, Aberdeenshire
    Car:
    ML270 CDi 2002
    Hi All,

    Yes apologies for not mentioning car model...:doh:...my bad....will update profile and see if i can add it there....

    Ye battery id definitely over three years old so will change and see what happens.

    Thanks
    for all your help.

    cheers
    Trevor
     
  17. Danny DeVito

    Danny DeVito Active Member

    Messages:
    886
    Joined:
    Nov 1, 2009
    Location:
    Ireland
    Car:
    V220 CDI
    I think BAS module is below the brake servo check for moisture / corrosion
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.