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MB Paul
MB Paul, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3567
Experience:  Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes
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2004 clk500 so i finally got the rite codes, i just have no

Customer Question

2004 clk500
so i finally got the rite codes , i just have no idea were i should start or what i should do or look at first. id greatly appreciate it if you see this and you now some thing to help thanks!
p203e -no CAN message from instrument cluster or message faulty. communication fault/see also CAN status in freeze frame data (P0600)
p207D -no or incorrect CAN message from control unit N73 (EIS) {EZS} control unit) communication fault/see also CAN status in freeze frame data (P1999)
p2031 -no or incorrect CAN message from control unit N80 (steering column module) Communication fault/see also CAN status freeze frame data (P1999)
p2004 -b2/5 (hot film mass air flow sensor) :Check sensor signal and voltage (P0101
p2042 -SAFETY Fuel SHUTOFF DETECTION (P1999)
Submitted: 7 months ago.
Category: Mercedes
Expert:  Hipo64 replied 7 months ago.

Hi My name is ***** ***** will help you with your question.

How are you? what scan tool you are using? are those code current or Stored codes?

Expert:  Hipo64 replied 7 months ago.

I need more info in order to help you. Need to know which control units are reporting faults. Where any components installed from another vehicle, It sounds like cluster was replaced and it is not properly coded to the car. There is power distributor connector for B-CAN located in left footwell panel. you will see about 7 sets of twisted pairs of brow/red and brown wires connected to it. Inspect for moisture and corrosion.

Expert:  Hipo64 replied 7 months ago.

https://www.google.ca/search?q=Mercedes+CAN+connector&espv=2&biw=951&bih=925&tbm=isch&imgi

Expert:  Hipo64 replied 7 months ago.

here you can see how it looks like.

I need you to communicate with me in order to locate problems.

Regards Pavlin!

Expert:  Hipo64 replied 7 months ago.

Please check if ENGINE Light comes on when Ignition is turned ON. If light does not turn on, those messages are indicating the problem. it is either cluster fault or light was removed.

Expert:  Hipo64 replied 7 months ago.

http://www.filedropper.com/convert-jpg-to-pdfne

here is info for P2004 103 MAF sensor. from my experience

it is best to start with another MAF sensor. they do go BAD. you try cleaning it first using brake cleaner. Sometimes it works