i have a 95 blazer that want responed to a code reader or a scanner. i was checking the DLC and mine has a pin in #2,4,5,9,13,16 in the haynes manual they show one that has the pin in 4,5,6,9,13,16. the date on my is 9/94 if anyone has the earley 95 and knows if my pin are in the correct place please let me no thanks in advance

Here's what the 1995 Shop Manual Says:

Pin 2 = Serial Data Signal
4 = Ground
5 = Ground
9 = Serial Data Signal
12 = Electronic Brake Control Module & Vehicle Speed Sensor Buffer
13 = Transfer Case NP1 only
16 = Battery Feed

You will need an OBDII scanner.