I got my MT2500, Mercedes cartridge, key's 21, 22, 33, & 34, 38 pin adapter, etc. I can't seem get the scanner to communicate with anything other than the base module and thats with key 34 (34 is supposed to be for 96 & up, glad I bought it). The ASR light remains illuminated. The following are the codes retrieved from base module, 8 Engine 120 left LH-SFI N3/2 voltage supply open circut. 9 Engine 120 Right LH-SFI N3/3 voltage supply open circut. 10 Base module voltage supply output fuse f2 open circut. 11 Base module voltage supply output fuse f3 open circuit. Ran some other tests I found on the scanner to try and get into controllers, and at times it would ask for key 17, which I didn't get thinking the others were all I needed. I would really like to get into the ASR and Electronic accelerator/ cruise cntrl/ idle speed module. As always, ANY help would be greatly appreciated. Thanks !!

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Mercedes Fleet:
2004 CL600 Designo Espresso SPORT
2004 S600 Designo Espresso SPORT/Lorinser Pkg.
1999 S320
1988 300TE
1972 280SEL 4.5
Diesel Fleet:
2014 GL350 Blutec
1987 300SDL Blk/Blk 4 place seating #18 head
1987 300SDL Smk Slv/Burgangy #17 head
1986 300SDL Blk Pearl/Palomino #14 head w/ 280K
1984 Lincoln Mark VII Fact BMW Turbo Diesel