hello i got a used 2001 s500 and it has several codes and i am trying to figure out were to start and what i should look for or check. codes p2316 ac control unit not available on can bus, P2314 control n73 not available on can bus, P2073-004 suction fan or AC open circuit , P207D-004 no or incorrect can control unit n73 ,P203E-004 no can from instrument cluster, P2071-008 start enable of DAS not sent. and i read something about AC control switch pulling codes from the AC it had error 1269 i cleared it and did not return.all of the engine codes return as fast as i clear them.im not that familiar with mercedes any ideas or help would be very appreciated thank you

 

any help anyone thanks

 

Hello.
Did AC work at all? Was You check that gas in inside AC? Usually P2073 is Electric suction fan for engine or air conditioning error or engine AC electronic suction device error.
Anyway, did You check it with Xentry?

 

I strongly suggest you purchase an ANCEL FX4000 ($249 on AMAZON) to properly diagnose your auto and 'fix' things. MBZ s class cars have very complicated electronics and using 'logic' is like trying to understand 'raised eyebrows' of a woman you just met. There are different 'communication' systems--some use wires (CAN) some use fiber optics (D2B, MOST, ?) and some use inter-stellar links?

My point is: The Diagnostic Assistant System (DAS) can be extremely useful---if you know the undocumented 'secret menus' and such. It is a series of computer programs that asks questions and your answers lead to other questions etc. EACH vehicle is different and the applicable DAS is often different. Would 'logic; tell you the 'teleaide' emergency phone system is under the passenger rear seat behind the fuse panel there? Or that on some vehicles the A/C system has some fuses inside the passenger side front dash?, etc. Or there are main (high amp) fused power distribution junctions under the passenger carpet and access panel?

 

thank you