ECU module programming guide using FDRS

[Howard_Scott_Warshaw]

The sage continues to weekend #2. I got an new cable, returned the old, and watta you know, the new one works on the same laptop I was trying from before. Faulty cable I guess. Had all the proper branding and everything so I can't say it was fraud.

Now to today. I activate the cable, sign into FDRS and start the process. In the meantime I hookup my NOCO Genius10 (because that's what got the most recommendations) to the charge terminals and get started.

Clear some DTCs and the update process starts smoothly. Except for one hiccup. I see the LVB voltage dropping lower than expected. From 12.5 at the start, to 11, then to 10V during a few module updates.

I check the NOCO connections. Its on, set to charge an AGM battery, so all should be well right?

No, not right.

MY LVB dropped low enough to fail the update process, and now it's too low to even close in the HVB when I try to start the truck. F*cking great. I'm beting the LVB was handicapped prior to the process.

So now I sit here, petting the dog, drinking a brew, praying that stupid NOCO can revive the 12V high enough where I can start the truck and go buy a new LVB. I'm sure it's probably cooked.

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[astrand1]

The sage continues to weekend #2. I got an new cable, returned the old, and watta you know, the new one works on the same laptop I was trying from before. Faulty cable I guess. Had all the proper branding and everything so I can't say it was fraud.

Now to today. I activate the cable, sign into FDRS and start the process. In the meantime I hookup my NOCO Genius10 (because that's what got the most recommendations) to the charge terminals and get started.

Clear some DTCs and the update process starts smoothly. Except for one hiccup. I see the LVB voltage dropping lower than expected. From 12.5 at the start, to 11, then to 10V during a few module updates.

I check the NOCO connections. Its on, set to charge an AGM battery, so all should be well right?

No, not right.

MY LVB dropped low enough to fail the update process, and now it's too low to even close in the HVB when I try to start the truck. F*cking great. I'm beting the LVB was handicapped prior to the process.

So now I sit here, petting the dog, drinking a brew, praying that stupid NOCO can revive the 12V high enough where I can start the truck and go buy a new LVB. I'm sure it's probably cooked.

I don’t know what the amp rating of the charger you got but you need at least 50amps going in. When updates are happening for whatever reason all the coolant pumps run among whatever else so a lot of amperage is needed to keep voltage up. I went and bought an old school charger that is manual and not digital so I am able to control what’s going in and I keep an eye on the voltage in fdrs.

 

[Howard_Scott_Warshaw]

I don’t know what the amp rating of the charger you got but you need at least 50amps going in. When updates are happening for whatever reason all the coolant pumps run among whatever else so a lot of amperage is needed to keep voltage up. I went and bought an old school charger that is manual and not digital so I am able to control what’s going in and I keep an eye on the voltage in fdrs.

Would be great if the tutorials, or anything, were update to reflect that. All Youtube videos and tutorials I've seen shows the 10A NOCO is acceptable/recommended.

I didn't find anything in my searches that suggested an old school dumb charger would be required.

 

[astrand1]

Would be great if the tutorials, or anything, were update to reflect that. All Youtube videos and tutorials I've seen shows the 10A NOCO is acceptable/recommended.

I didn't find anything in my searches that suggested an old school dumb charger would be required.

I agree. On the ice trucks a 10-20amp is more than adequate but yeah on ours it’s way higher. Why ford has all the pumps and whatever else is on who knows. If it was t for all that crap running it would not be such a draw.

 

[Howard_Scott_Warshaw]

I agree. On the ice trucks a 10-20amp is more than adequate but yeah on ours it’s way higher. Why ford has all the pumps and whatever else is on who knows. If it was t for all that crap running it would not be such a draw.

Welp, here i sit. praying my nuked 12V will accept a charge and looking for replacement batteries in my area. might have to jump the truck with my John Deere tractor. Boy wouldn't that be a site

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