diagnostic?
Newbie
Joined: Feb 2003
Posts: 4
Likes: 0
From: Stockholm, Sweden
1993 MB 320 CE
No, if your car is a California car you have a button and led to test it right now. If not, you can build a simple led tool (Home Brew DTC Tool) and read the faults code yourself. See the schema at Jim Forgione site http://pages.prodigy.net/jforgione/MB_X11.html (The schema was drawn by Tony, N4HSR). Put the pins of the led tool in the correct holes, depending if you have a 16-pole or 38-pole connector and if it is USA or Euro car (see PDF-file).
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Read Diagnostic Trouble Code (DTC):
a) Ignition: ON
b) Press start button for 2 to 4 seconds.
c) Read and record DTC.
d) Press start button again.
e) Read and record DTC.
Repeat steps d) and e) until the first DTC reappears.
NOTE : It is only possible to read codes from the Diagnostic Module (DM) using this procedure. All other modules/systems require the use of either a Mercedes Hand-Held Tester or an impulse counter scan tool.
NOTE : DTC's which have been stored due to testing or disconnecting of lines must be erased from the DTC memory at the end of testing.
Clearing Diagnostic Trouble Code (DTC) Memory [1]:
a) Press start button for 2 to 4 seconds (DTC readout appears).
b) Wait 3 seconds, press start button for 6 to 8 seconds, thereby clearing the previously displayed DTC from memory.
c) Each stored DTC must be cleared individually.
[1] Erasing of stored diagnostic trouble codes must begin within 20 seconds of reading the DTC. After 20 seconds, the DTC can no longer be erased. Erasing procedure can be restarted by performing DTC memory readout after the fault is again displayed.
-------------------------------------
Decode DTC :
http://www.autolib.diakom.ru:8000/CA.../cs1000_mb.pdf
http://pages.prodigy.net/jforgione/MB_S500.html
http://www.batauto.com/MB/
Ofcourse, not all problem can be solved with this diy tool but it is something at least. You can also buy an 'Impulse counter scan tool' #124 589 19 21 00 from Mercedes, cost ~400 USD. If you have the 38-pole you can buy a adapter #140 589 14 63 00 to get bigger holes for the 'Impulse counter scan tool'.
-------------------------------------
Read Diagnostic Trouble Code (DTC):
a) Ignition: ON
b) Press start button for 2 to 4 seconds.
c) Read and record DTC.
d) Press start button again.
e) Read and record DTC.
Repeat steps d) and e) until the first DTC reappears.
NOTE : It is only possible to read codes from the Diagnostic Module (DM) using this procedure. All other modules/systems require the use of either a Mercedes Hand-Held Tester or an impulse counter scan tool.
NOTE : DTC's which have been stored due to testing or disconnecting of lines must be erased from the DTC memory at the end of testing.
Clearing Diagnostic Trouble Code (DTC) Memory [1]:
a) Press start button for 2 to 4 seconds (DTC readout appears).
b) Wait 3 seconds, press start button for 6 to 8 seconds, thereby clearing the previously displayed DTC from memory.
c) Each stored DTC must be cleared individually.
[1] Erasing of stored diagnostic trouble codes must begin within 20 seconds of reading the DTC. After 20 seconds, the DTC can no longer be erased. Erasing procedure can be restarted by performing DTC memory readout after the fault is again displayed.
-------------------------------------
Decode DTC :
http://www.autolib.diakom.ru:8000/CA.../cs1000_mb.pdf
http://pages.prodigy.net/jforgione/MB_S500.html
http://www.batauto.com/MB/
Ofcourse, not all problem can be solved with this diy tool but it is something at least. You can also buy an 'Impulse counter scan tool' #124 589 19 21 00 from Mercedes, cost ~400 USD. If you have the 38-pole you can buy a adapter #140 589 14 63 00 to get bigger holes for the 'Impulse counter scan tool'.
