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 Mb Vito p2339 p2347 
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Joined: Thu Jan 10, 2008 6:20 pm
Posts: 96
Post Mb Vito p2339 p2347
Mb Vito 115cdi w639.
Alternator/battery light on. Two dtc's in ecu p2339 p2347.

Codes referring to wrong coding and eeprom chk problem. Will erase but comes back on next start.
Coding checked ok. Read ecu with bdm, content/chk seem to be ok.
Dealer updated ecu, no help.
Cloned content to spare ecu, no help.

Alternator is new.
Two wires from alternator checked to ecu and fuse box, ok.
Sam show alternator signal 61 off. Measures 0V manually also.
Charging show some voltage ~13V on battery.??
L line goes to ecu but why is F going to Sam? And one wire from sam to ecu, phewww.

So.. alternator and ecu needs replacing the third time? :lol:
btw. Damn, more easy to do fiscal declaration than read mb wiring diagrams on wis...


Tue Aug 05, 2014 7:51 pm
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Joined: Thu Jan 10, 2008 6:20 pm
Posts: 96
Post Re: Mb Vito p2339 p2347
Corrupted flash in ecu.
Data retention ~10 years in modern ecus. :D
Keeps us occupied...


Fri Aug 08, 2014 11:15 am
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Joined: Fri Feb 18, 2011 2:19 am
Posts: 1287
Location: The Netherlands
Post Re: Mb Vito p2339 p2347
:shock:


Fri Aug 08, 2014 11:36 am
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