My truck will not communicate with any scanners - Ford Powerstroke Diesel Forum
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  #1  
Old 07-20-2013, 03:50 AM
579 579 is offline
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My truck will not communicate with any scanners

12/97 f350 auto--- I've had the truck since may and have had a ford diesel tech hook up his lap top to it and it just reads communication failed.

Then I used my neighbors scan tool , he works on the diesel buses for the city, and his scanner said the same thing

All fuses are good
Truck is all stock

Is it possible it has an ancient tune in it?

The previous owner was useless for info but its possible the original owner did something ....

Any ideas would be awesome

Truck runs good. Idles good,except for an intermittent surge in rpms at idle. It's almost like the surge an engine gets when the ac compressor kicks on
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Old 07-21-2013, 09:29 AM
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What software was on the laptop?

What scanner did the neighbor use?
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Old 07-22-2013, 05:00 PM
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The lap top is the one he uses at the dealership that he uses to read every diesel that comes through but I'm not sure what software .

The other one is called "launch ".it is a wireless blue tooth one. It's pretty neat .
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Old 07-22-2013, 06:17 PM
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Unless the laptop has AutoEnginuity, or some proprietary Ford software, it's unlikely to communicate. That bluetooth one is probably generic OBD-II, which our trucks are not.
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Old 07-23-2013, 03:29 AM
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I was searching and found some posts saying that either the software or the scanner needed to be set to OBD-l to read our trucks. Not really sure how that works .
What equipment is compatible with our trucks ?
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Old 07-23-2013, 05:19 AM
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Actually, it needs to be set to "Non-OBD-II" or "non-standard OBD-II", or something similar. It's NOT OBD-I, which is based on simple two-digit codes.

What's known to work; depends on what interface you want:
* Laptop/software - AutoEnginuity with Enhanced Ford activation
* In-dash gauge (also allows tests) - AeroForce Scangauge
* Stand-alone scanner - Snap-On MT2500 (old "red brick") with proper cables/connectors and K2a program card

There are a couple of others, one of the newer Snap-Ons (Modis or Solus or something) and one particular Innova, but you'd have to do some research on the forums to find the exact ones. Most OBS PSD folks use one of the above.
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Old 07-23-2013, 08:04 AM
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Looking at the female port under the dash, is the lower pin all the way to the right offering a positive signal using a meter? Also, just asking, the key is in the run position correct (my wife took here toyo to be smogged that they whipped out the scanner first thing and didn't know the key must be in "Run" for the scanner to communicate. Told her the PCM was fried, she got scared and called me, told her to start the truck and yell to the operator "is the PCM fried now?" and leave that shop.)?

Last edited by BigFuel; 07-23-2013 at 09:06 AM.
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Old 07-23-2013, 09:01 AM
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My diesel tech friend said that people are always fast to Condemn the ecu/ PCM and it turns out the computer was fine .


His lap top initially talked to my truck but only briefly and it had a fault on the trs- transmission range sensor. That's the only time it spoke . Every attempt since then has been a communicatin failed message .


I really need to break through and talk to my truck
It's not getting very good gas mileage and it feels
Like its " being held back " from its full potential . Mechanically everything seems fine. I just want to confirm that the electronics are good as well.

Mt friend with the lap top is over 2 hrs away and I don't see him much

I guess I'll get with my neighbor again and try seeing If his scanner has the right settings.

Thanks for the replies . You've helped me more than you know ...
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Old 07-23-2013, 09:03 AM
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Any other input is welcome .....
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