OBD II port issue

[Fubar]

my obd II port will not activate. I'm plugging in an sct xcal2 and it won't activate. I tried it on another expeditoon and it came on so it's not broken. I read somewhere that the fuse that powers the power sockets also powers the obd II port so I changed them out. It still won't work. Any ideas? It's a 98 5.4 4x4

 

[Canadian Expy]

Did you check to see if there is power at the port?
I have heard of OBD ports not reading but I can't seem to remember why???
Sorry, good luck

 

[Fubar]

It won't power up the xcal, but the power outlets are working just fine

 

[Canadian Expy]

Is the tuner unlocked ?

 

[Fubar]

I believe so, it won't even power up when plugged in. We tried it on an f150 and it came on right away

 

[Canadian Expy]

Are you sure that the fuse isn;t blown also make sure it's getting the reqiured amount of power( multi metre) not just power( light probe)

 

[Fubar]

I replaced both fuses for the power ports in the dash. What other fuse could be tied to the obd II?

 

[JUST4FUN]

Look for the cigarette lighter fuse

 

[Fubar]

I thought that was what I replaced

 

[stamp11127]

Looking at the under dash DLC connector, which should be wider at the bottom than the top, the lower row of pins are numbered 1-8. The upper row is numbered 9-16. The numbering order is from right to left on both rows. Pin 16 is hot at all times, has two fuses, one in the central junction box (20A #3) the other in the battery junction box(50A #103). There is a connector between the two fuses - one of the 3 large ones on the firewall.
The grounds are pins 4 & 5.

This is from my 99 Expy manual and should be the same on yours.