Hi All,
Anyone know where the +12V on pin 16 of the OBDII connector under the dash is supposed to come from? I recently bought a 2001 blazer and was trying to hook up an AutoTap to it, but there's no power on Pin 16. Funny thing is that the blazer runs OK, so the CPU has to be getting power. Is there a common fuse or something that could be blown?

Terry

 

Is your cigarette lighter working? If not, then check the fuse. The DLC gets its power from the same circuit.

Mine was blown on my '04 Rainier when I bought it too...

 

Thanks Kyle... that was it! Blown 15A cigarette lighter fuse.

 

Glad I could help!