Hacking the Pedistrian Warning System Sounds

[daczone]

Should all trucks have that pedestrian sound when driving at slow speeds. My 24 Lariat 100% does not and never did.

I don't know that I can hear my FORWARD sounds... (24 Lariat as well) but I certainly hear the backup noise.

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[daczone]

@daczone Do you have higher resolution versions of these pictures?

Sure what do you need? I have a digital scope

The FLASH chip is a IS25LP032

This is the guy that holds the sound files. I didn't remove it to get the dump.
I just used a chip clip and read it in place.

 

[MountainAlive]

…But I'll change the sounds in the chip as a proof of concept to make sure that method is doable before going further.

Super interested if this works! Would you also be able to change the volume?

 

[bmwhitetx]

There does appear to be a header in the flash memory with part number ML3T-14G493-AE which interestly looks like a Ford part number, but doesn't correspond to anything I can find.

That number is likely the software version of those sounds. I know just enough to get in trouble, but there are part numbers, SW versions and strategies.

I can offer a little insight here. @GDN is correct, Ford has many different characteristics for a module. For example, the number on the part itself is the Engineering number, but the box it comes in has a different service part number. But there's more.

If you look at a module in FDRS you will see a list of different module characteristics like F124, F188, etc. The number you gave (ML3T-14G493-AE) is the F124 characteristic of the PACM module.

FORScan gives a limited amount of info as well. It calls F124 the Calibration number. If you look at a FORScan Connection log, it will tell you the Calibration (F124) for every module. You can also get the F124 and F188 values for any module by looking at an As-Built file in an XML parser. The PACM module has the module id "750". FYI, F188 is what we typically refer to as the Software Part Number and it changes whenever we get an OTA or it is updated in FDRS. FORScan calls F188 the Strategy.

For all Lightnings from 2022-2025 our Calibration/F124 is NL3T-14G493-AC. When I look at ICE Powerboosts from 22-25 their value is what you found ML3T-14G493-AE.

The first letter is the year that part began being used. M is 2021 and N is 2022. The next two characters are the Product Line. Here L3 = F150/250. The fourth character is the design responsibility (T= Unassigned). The middle part of a Ford number (14G493) identifies the generic part (like headrest, wiper motor, ABS module). When it starts with 14 that means it is electrical. The suffix (AC or AE) is the revision.

TLDR: You have an ICE PACM module.

 

[daczone]

I can offer a little insight here. @GDN is correct, Ford has many different characteristics for a module. For example, the number on the part itself is the Engineering number, but the box it comes in has a different service part number. But there's more.

If you look at a module in FDRS you will see a list of different module characteristics like F124, F188, etc. The number you gave (ML3T-14G493-AE) is the F124 characteristic of the PACM module.

FORScan gives a limited amount of info as well. It calls F124 the Calibration number. If you look at a FORScan Connection log, it will tell you the Calibration (F124) for every module. You can also get the F124 and F188 values for any module by looking at an As-Built file in an XML parser. The PACM module has the module id "750". FYI, F188 is what we typically refer to as the Software Part Number and it changes whenever we get an OTA or it is updated in FDRS. FORScan calls it the Strategy.

For all Lightnings from 2022-2025 our Calibration/F124 is NL3T-14G493-AC. When I look at ICE Powerboosts from 22-25 their value is what you found ML3T-14G493-AE.

The first letter is the year that version of the part was used. M is 2021 and N is 2022. The next two characters are the Producty Line. Here L3 = F150/250. The fourth character is the design responsibility (T= Unassigned). The middle part of a Ford number (14G493) identifies the generic part (like headrest, wiper motor, ABS module). When it starts with 14 that means it is electrical. The suffix (AC or AE) is the revision.

TLDR: You have an ICE PACM module.

Interesting... There is AS-BUILT code for this module:

(Code for my VIN) but I would guess they are all the same.

 

[bmwhitetx]

Interesting... There is AS-BUILT code for this module:

(Code for my VIN) but I would guess they are all the same.

Yep, those are the lines from the <BCE MODULE> section. They are the parameters that you normally would look at changing with FORScan. Unfortunately the PACM module is not available for configuring in FORScan and it is not in @Livnitup's awesome spreadsheets. Too bad, might be some good stuff there.

If you look further in the As-Built file (have to download it, not view from the Motorcraft site), you will see a <NODE ID> section for each module with the F124, F188, etc. codes. The PACM is <NODE ID>750.

 

[I <3 My Lightning]

Should all trucks have that pedestrian sound when driving at slow speeds. My 24 Lariat 100% does not and never did.

When I first got the truck I also didn't hear a forward sound and only thought the motor whine was Ford's interpretation of the federal ev pedestrian law. Our kia ev6 is louder but no where near that super annoying Toyota pedestrian sound that you can hear like a 1/4 mile away.

A few months after I purchased the truck I was cruising with the windows down on a detoured route directed by several officers. Some local city police and some state troopers. All commented as I cruised past and I even spoke to them as I was still rolling by. One said that's one quiet truck, my reply it's 100 percent electric. One said what is powering your truck it's dead silent?, once again I said it's 100 percent electric. One said your truck is off, you know it's not safe or legal to coast in neutral, once again I replied it's 100 percent electric.

I swear the Easter egg to the recent gateway update last month fixed this issue. I now can here the pedestrian sound even with all the sound deadening audio upgrades that I did later on.

 

[bmwhitetx]

Interesting... There is AS-BUILT code for this module:

(Code for my VIN) but I would guess they are all the same.

So I have a database I've been building of over 80 Lightnings from 22-25 plus a handful of ICE PowerBoosts. Interestingly the 22-23's (both ICE and Lightning) do not have any PACM info in the As-Built like you show. There is nothing there in the BCE section. My own 22 has nothing. I can only see module software numbers.

All the '24 and '25 Lightnings look to have what you have except for 750-01-01. All the 25's have 0065 instead of your 0165. For '24, some Pros (maybe fleet) also have the 0065. The ICE trucks for 24 and 25 only have useful info for 750-02-01.

 

[NW Ontario Ford Lightning]

I want a manual switch, so I can switch on the sound to mimic the V-8 sounds when A WRX pulls up beside me at a stop light,
and it should vary with the pedal application, with some tire-squeeling added in when the pedal is more than 70% and the truck is accelerating ... HA HA HA

Then again it is kinda satisfying to pull away so effortlessly and silently while they are making a lot of noise behind me in my dust...yeah, I know, don't tease the ICE owners too much, & make em cry.

 

[Heliian]

Should all trucks have that pedestrian sound when driving at slow speeds. My 24 Lariat 100% does not and never did.

don't know that I can hear my FORWARD

Mine comes on occasionally, don't know what the triggers are for it. Time for some testing.
https://www.ford.com/support/vehicl...ips/6317299256112?name=pedestrian-sound-alert

 

[MountainAlive]

Yes I feel the truck is way too quiet for pedestrians. People walk right out in front of my truck in parking lots all the time. I would simply like to boost the low speed hum sound a little more.

 

[cl_l]

If you can get it to play trumps "we're gonna win so much" speech as my pedestrian warning I will buy one from you

 

[daczone]

So I have a database I've been building of over 80 Lightnings from 22-25 plus a handful of ICE PowerBoosts. Interestingly the 22-23's (both ICE and Lightning) do not have any PACM info in the As-Built like you show. There is nothing there in the BCE section. My own 22 has nothing. I can only see module software numbers.

All the '24 and '25 Lightnings look to have what you have except for 750-01-01. All the 25's have 0065 instead of your 0165. For '24, some Pros (maybe fleet) also have the 0065. The ICE trucks for 24 and 25 only have useful info for 750-02-01.

Mine is a 2024 Lariat.... You sound like your doing what I did with my Ranger (Sold it to buy my Lightning). I added every option it didn't have just by changing Forscan and adding the hardware. I even added paddle shifters which the Ranger never had, but I noticed when I was adding Adaptive Cruise there were the screws for the paddles on the steering wheel. I grabbed a set of Explorer paddles and they bolted right in. The Ranger of course was far less documented than the F150 as far as Forscan goes.

 

[daczone]

Yes I feel the truck is way too quiet for pedestrians. People walk right out in front of my truck in parking lots all the time. I would simply like to boost the low speed hum sound a little more.

That's funny because it's not like the Lightning is LITTLE... I haven't had mine long enough to know if that's a problem.

 

[Scorpio3d]

My dad has an (22 I think)escape hybrid and it makes the same/similar sound going forward when it is running in EV mode. Probably the same in reverse. I just don’t remember.

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