I've been able to do the three updates that have been identified in this thread. Works great. Here's a couple of thoughts after I did them:

1. I couldn't figure out how to create a backup of the module before I started updating it so I kept a log of what the factory setting was, what I changed it to, and then what it actually changed to after done.

2. The TPMS factory settings in post #48. Switch (thanks for your work on this) wrote that his factory settings were 0104 3C41 01D8 but my factory settings were 0104 3C41 0100. Strange that my last 4 digits were different. After applying the changes and acknowledging the scary checksum warning the truck actually changed to 0104 3C41 01F1. Bottom line is that my factory settings were slightly different than Switch's but it works just fine. If I'm understanding how this works, you can change either of the first two 4 digit values and the module calculates and inserts the third set of digits automatically. In other words, the last three digits are calculated from whatever the first two sets of 4 numbers are. If you type something in the last 3 sets of 4, it will be ignored and replaced with the calculated value.

That was kind of wordy but it describes my experience. I'm keeping a log of all the changes I'm doing and would be happy to add anything anyone else comes up with and post the values for reference.

 

Thanks switch. The horn honk disable and fog lights worked great. Can't wait to see what else I can mess with.

 

Go here, https://www.motorcraftservice.com/AsBuilt you can download the ASbuilt data, that was installed at the factory.

 

Double horn honk:
726-41-02:
0001 0001 0173 (enabled) factory setting
0000 0001 0172 (disabled)
I changed the 0001 to 0000 and it changed the 0173 to 0172 itself.

Fog lights with high beam:
726-27-01:
0001 0001 0056 (disabled) factory setting
0001 0000 0056 (enabled)


As switch has said... the horn honk matched exactly.

The fog light, my last 4 was 0057..even so went ahead and made the change to 0001 0000 0057 and bamn quad high beams... love it.

Not having my truck honk at me every time i get out is worth the 70 dollar amazon gizmo...

 

Thanks. I need to compare my known settings to these defaults.

 

I made a backup of all of my modules. I will gladly donate to anyone who is doing comparisons.

 

Awesome, glad to see you guys making edits if you guys find anything else be sure to post on up.

 

Absolutely love having high beams and fog lights. Turned on the spotlights for good measure ��

 

That truck is just a beast Fidel. I did the same thing and was playing around with the fogs on and off. They do indeed contribute a lot light on the ground right in front of the truck. These will be great when four wheeling at night while keeping the high beams on. Turning all that on while a car is coming at us would be downright rude.

 

Thanks rude and dangerous. I might have to start wearing some shooting glasses to drive at night. All of these new "cool color temp" headlights have so much glare. I can't tell anymore if peoples high beam are on or not. I've just gotten to the point I ignore them all.

 

 

These values are obviously hexadecimal. 32 hexadecimal = 50 base ten. 3x16=48+2 = 50. In hex A=10, B=11, C=12, D=13, E=14, and F=15. 0-9 are the same. So to calculate a setting of 72, you would divide 72 by 16 and look at the whole number and remainder. That's 4 remainder 8. So the number for 72 in hex would be 48. A larger number like 78 would be 4 remainder 14, so it would be 4E in hex.

 

My head hurts...

 

There are 10 kinds of people. Those who understand binary and those who don't.

Only, this is hex, and is much more confusing.

 

I'll split a bottle of asprins with Karl4cat