My 16-hole diagnostic port doesn't seem to match the info that I've found for how to use a code reader.

#1 besides the contact sleeve in the hole, it has a black button below it
#3 also has a contact sleeve and has a red light below it
#6, 7, and 14 are the only other ones that have contact sleeves.
All the others are empty.

The instructions on my reader say that #1 is for ground (black wire) and #16 (red wire) is for power but it's empty.

Of the available holes with contacts (3,6,7,14) which will I use for power?

Is it correct for me to assume that I'll pull codes from the remaining 3?

Thanks,

AL

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03 CLK430 Cabrio 211K Pweter Silver/ Oyster Leather
90 300SEL 214k Pearl Black/ Alto Grey/Black Leather

Prior: 85 190E, 88 300TE, 89 300TE, 90 300E 2.6, 90 300TE, 92 300E 2.6, 91 and 93 300SL, 87 Ferrari Mondial Cabrio