OBD II connection fails - F150online Forums

OBD II connection fails

Thread Tools Search this Thread
Old 09-22-2007, 12:32 PM
Junior Member
Thread Starter
Join Date: Sep 2007
Posts: 6
OBD II connection fails

Thanks in advance for your help on this matter.

I have a 2001 Harley-Davidson F-150 Supercrew w/5.4 liter V8.

The ABS light has been coming on lately, and I took it to Autozone last night and they couldn't get an OBD II connection with their diagnostic machine.

Since it is due this month for the annual Texas vehicle inspection I took it to my local inspection station this morning and they couldn't get their diagostic machine to connect to it either.

They ended up doing the alternative sensor-in-the-tailpipe test to test the emissions and it passed inspection, but they told me that the OBD II port will need to be fixed before the next annual inspection.

I suspect that this is either a connector or a wiring problem, but I don't even know where the ODB II device is located on this vehicle.

Any suggestions on how to proceed before I just give up and take it to a mechanic? I suspect this could be an expensive trip to the repair shop.

Reply With Quote
Old 09-22-2007, 01:35 PM
Senior Member
Join Date: Sep 2005
Location: Atlanta, GA
Vehicle: 2013 Ford Mustang
Posts: 2,618
The OBDII port ismost likely under the dash on the drivers side just above your shin. It connects directly to the ECM for troubleshooting and emissions purposes. It is the single handed reason we can't cheat emissions anymore. I wish GA would run an old test if the port failed, then it would be simple again!
Reply With Quote
Old 09-22-2007, 02:27 PM
Senior Member
Join Date: Feb 2004
Vehicle: 2001 FORD EXCURSION
Posts: 143
Some OBDII code readers get their power (12 VDC) from the connector under the dash. The fuse that supplies 12 V to the cigarette lighter also supplies 12 V to the OBDII connector on my 01 Excursion. Check to see what fuse is used to supply 12V to the OBDII connector on your vehicle. Your problem may be a blown fuse.
Reply With Quote
Old 09-22-2007, 05:46 PM
Senior Member
Join Date: Oct 2002
Location: St. Louis (Out in the woods)
Vehicle: 2001 Ford F250 6.8
Posts: 5,872
Fuse F3 in the under dash fuse panel is likely blown.

Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
M5Od Slave replacement- now ABS light and no A/C Raptor05121 Transmissions 5 09-30-2015 08:44 AM
2003 f150 battery indicator on judesson Electrical Systems 1 09-29-2015 11:11 PM
Edge evolution Michael A. Roth Chips, Tuners & Programming 1 09-25-2015 09:05 AM
2003 F150 Anti-Theft issue buck119fa Electrical Systems 7 09-21-2015 06:40 AM
98 F150 5.4 - need some serious help...just bought... guy made a mess - story inside. kaydien23 V8 Engines 8 09-15-2015 11:14 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off

All times are GMT -4. The time now is 06:19 AM.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Fordé is a registered trademark of the Ford Motor Company