I read the thread and am impressed. I have a XLT hybrid lux with the smaller screen. If I buy a FORScan cable, license FORScan, and follow your instructions, I can get the speed limit signs on my Maverick? That would be great.This mod will work in the standard configuration for all trims with the only possible exception being Lariats w/ Sync 3 installed. An alternate configuration will then be needed which is untested so far.
Tools need
Forscan software and a programming cable
tutorial assumes you already know how to program using forscan.
First we need to enable the TSR menu in the instrument cluster. This has been tested on the 4.2inch cluster and is untested but should work on 6inch instrument clusters.
There are 2 possible settings depending if you have trailer sway control option in the vehicle assistance.
IPC
720-03-02
xxCx-xxxx
use this to change your existing setting if you have the trailer sway control as an option.
If not try different values in place of C until you get the TSR menu and no option for trailer sway control.
edit
apparently trailer sway control is a standard feature so that is the correct setting for all trims
edit this code is needed to enable the chime alert option which makes an audible noise when you drive above the posted speed limit or set threshold to trigger a warning.
IPC
720-04-01
xxxx-xx*x-xxxx
change * to 4 to enable the chime setting
untested yet
changing * to C should also work and open up other chime settings.
Next we need to enable the image processing module to scan speed signs.
This works in 2 distinct configurations.
1a. No Sync & no nav system - tested and confirmed working
1b. Sync & no nav system - will only apply to Lariats w/Lux. package - untested
2. Sync & nav system - semi confirmed see below
Configuration 1 which most every Maverick owner will use only scans speed limit signs with the front facing camera.
Configuration 2 supplements the camera with posted speed limits from the nav system maps. This requires a different hex code than Config 1 and may also require modifications to the APIM module to fully work. This needs to be tested still.
Config 1 without Navigation system
IPMA
706-01-01
xxxx-xxD2-xxxxx
This enables the speed sign scanning processing in the image processing module
Config 2 with Navigation system
IPMA
706-01-01
xxxx-xxDB-xxxxx
This will enable the system to also use the Nav system for posted speeds.
Note if you use this on a non Sync system you get a reduced performance error message and it won't scan signs at all.
That is it and if you did everything correctly TSR which is undocumented on the Maverick thus far will be enabled and working correctly in the instrument cluster with no conflicts with other safety features.
There should also be added functionality to display the speed signs on the head units but that is not known if it will at this point and requires further testing.
I am in Germany so the round signs in km/hour would be what I am looking for. I don't need a chime that I am speeding or any interaction with cruise control, I just want to know what the speed limit is if I missed the last sign. They have cameras everywhere and will send you a ticket for like 5km over the limit!
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