Location of Dionostic Plug to reset check engine light

If you have an Android Smart phone you can use a Torque App and EML327 bluetooth reader to read and reset the codes. Torque App also provides you with a full range of engine parameters. You can build an instrument panel with it. I use to accurately track water temperature and boost in one of my cars.

Google EML 327 for the reader. They range for $10 to $100. The cheaper ones sometimes have more trouble connecting to the phone. The reader is good for OBD 2 systems (1996 and latter engines)

The Torque App has both a free version and a $5 version with more data.

I can RESET my faults by removing the negative battery terminal and then turning on something to give a battery drain like the headlights or something...

Wait about a minute and then turns things back off again and hookup the negative battery terminal...

You can also go to some auto parts places and they will check your system for free and reset things as well. Of course you probably would want to buy something from them then haha...

On my F150 truck if I took it in to the shop do this three minute job it would cost me $90

Roy Ken

On my 2004 Workhorse the diagnostic plug is on the left side of the steering column almost up behind the dash.

Hard to see.

Check engine light can be reset by having a drain on the battery (play radio) and disconnecting chassis battery for a few minutes.

With many chassis, the manufacturers attach the OBD plug to the side of the steering column under the plastic cowling. The body company can then place it where they like. On many, it was never moved and the first time you need it, you have to remove the cownling to find it and can then mount it to a more convenient location. That's the way it was on mine.

Moved from Forum Technical Support

On my 2005 Workhorse based Class C it is located under the dash,left of steering wheel just above emergency brake pedal

Steering column above the brake pedal.