Lightning Software Updates using FDRS

[Bestword57]

Jeez, reading this thread is making me realize I could have learned the hard way as well. I updated a couple of modules using FDRS without any power supply on the battery. They were the modules related to a frunk partially opening issue. I think maybe they were the FHCM and BCM modules.

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[RLXXI]

Jeez, reading this thread is making me realize I could have learned the hard way as well. I updated a couple of modules using FDRS without any power supply on the battery. They were the modules related to a frunk partially opening issue. I think maybe they were the FHCM and BCM modules.

Most definitely a wise precaution when programming especially with the tiny 12v battery in these trucks. Back when I was working at Ford we would simply use a regular battery maintainer which was adequate for regular trucks/cars with full size batteries and not a lot of electrical loads.

Considering these trucks are nothing but electrical loads I'd say you dodged a bullet. I picked up one of these just to be safe.

https://www.amazon.com/dp/B01ER3LH6Q?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
and the required cables.
https://www.amazon.com/dp/B079C4KXQR?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

 

[Bestword57]

I thought I would just do the "Front Parking Sensors Unavailable" recall update myself, but now I'm re-thinking driving an hour to take it to the dealership vs. $198 for power supply plus $50 for FDRS again.

Last time I took it to the dealer where I purchased it for this parking sensor recall, I was told "Oh, well we didn't have the time slot big enough to do it" (they said that had something to do with the online scheduling and phone in person scheduling overwriting each other) . So my spouse left it there while they rotated the tires and performed all safety checks for the 10,000 mi service, which had to be done anyway. So $80 later, I still don't have the recall taken care of.

I used to be an automotive technician too.

 

[PJnc284]

I thought I would just do the "Front Parking Sensors Unavailable" recall update myself, but now I'm re-thinking driving an hour to take it to the dealership vs. $198 for power supply plus $50 for FDRS again.

Last time I took it to the dealer where I purchased it for this parking sensor recall, I was told "Oh, well we didn't have the time slot big enough to do it" (they said that had something to do with the online scheduling and phone in person scheduling overwriting each other) . So my spouse left it there while they rotated the tires and performed all safety checks for the 10,000 mi service, which had to be done anyway. So $80 later, I still don't have the recall taken care of.

I used to be an automotive technician too.

Where are you located? Someone may be near you with a power supply. Parking sensor is probably ipma related which is the one update where you definitely want a good power supply.

 

[Bestword57]

Thanks for the consideration. I live in Yachats, Oregon, on a remote part of the central Oregon coast.

 

[Bestword57]

I thought of an idea: I have a leftover AGM battery from a Chevy Volt that is actually perfectly good (didn't need to replace it after all). I could hook that up with a pair of jumper cables and then hook my 10A with 50A boost style charger to the battery to provide the extra oomph to get the update installed.

 

[Warp Asylum]

I thought of an idea: I have a leftover AGM battery from a Chevy Volt that is actually perfectly good (didn't need to replace it after all). I could hook that up with a pair of jumper cables and then hook my 10A with 50A boost style charger to the battery to provide the extra oomph to get the update installed.

I would not risk that. The IPMA update is very long. I wouldn't do it without a proper power supply.

 

[rugedraw]

I thought of an idea: I have a leftover AGM battery from a Chevy Volt that is actually perfectly good (didn't need to replace it after all). I could hook that up with a pair of jumper cables and then hook my 10A with 50A boost style charger to the battery to provide the extra oomph to get the update installed.

If your truck had a bigger 12v battery like the ICE trucks do, I would say go for it. You can try......worse case scenario, you'll have to scramble to get a proper power supply if the module bricks so you can recover it. I don't think it's worth the risk. I know plenty of EV owners that have used this with no issues:

https://www.amazon.com/RV-Converter...420&sprefix=55amp+powers+upply,aps,94&sr=8-10

For $100, It's not worth risking the headaches.

 

[Bestword57]

That's $60 cheaper at $94.99 and 55A than the first one referenced above at 75A and $160.00 by RLXXI. I wonder if 55A is sufficient amperage?

 

[PJnc284]

Think 75amp and above is recommended due to the updates like the IPMA pulling 60 amps+ for several hours. Haven't seen much on the 55 but know people have had problems on the Lightning with two clore 2320's piggybacked to make 40 amps.

 

[Bestword57]

Thanks for the heads up. I'm not one to repeat mistakes - that's why I'm on this board. That and to share whatever meager knowledge I can. We have a wealth of former electrical engineers and auto technicians. I can remember when even EVs were simple, a chopper controller, a bunch 6 or 12v batteries in series and viola, you're moving down the road.

 

[T3Fan]

There’s no place I can see which updates are pending without specific software right?

 

[RLXXI]

There’s no place I can see which updates are pending without specific software right?

Motorcraftservice.com. Service info tab. Drop down menu on the next page select 72hrs for $26 and access a lot of information including updates.

 

[rugedraw]

That's $60 cheaper at $94.99 and 55A than the first one referenced above at 75A and $160.00 by RLXXI. I wonder if 55A is sufficient amperage?

55amp is enough, but there is nothing wrong with getting a bigger one if you want.

 

[Jesse-Infotainment]

The bigger the better for the Lightning

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