How to disable "Courtesy Lights?"

[martinli]

No, I did not save the AS-Build-Data and did not really looked which bytes had been changed. Sorry.

Did the dark car mode switched off the internal lights to come on on your car?


I remember that I first enabled dark car and did not notice the "Welcome Light" field at the first moment. A couple of days later I found the "welcome light" switch in forescan.


On you picture there is the WElcome Light" field missing which is available on my -> see picture :



It might be a problem of your Adapter? Or you model year?
Here is another good help : FORScan - Modify Module As-Built Data (Detailed)
And here : https://forscan.org/forum/viewtopic.php?t=4393

[jim2901]

Thanks for the update. Being able to modify the "Welcome illumination" may have been an upgrade to the firmware in the GEM/SJB after the 2010 production year. I am going to contact Ford to see if they released a Service Bulletin with a firmware upgrade. My GEM/SJB firmware is version: v6.

[jim2901]

Enabling the "Dark car" option did turn off the interior lights and having all the dash lights come on when a door is opened.

[Kibo]

Slightly off-topic, but I noticed that your screenshots show Front Tire and Rear Tire Placard Pressures. Do you know whether these settings determine the pressures that trigger the TPS warning light?

[martinli]

I'm pretty shure the TPMS values are the ones used as the lower border for the warning.
The previous owner lowerd the original values using the common Ford programming tool. This tool : https://www.amazon.com/Ford-TPMS-Sen.../dp/B01AQVIY96

[Kibo]

I thought the tool you linked is only for programming which sensor is which, not the pressures? If there's a way to program the pressures, I'd really like to hear about it.

The only information I've found indicated that a dealer could reprogram the TPMS warning pressures using the dealer scan tool, and then only if they knew it existed and weren't concerned about legal issues. There was also mention that the functionality was removed at some point. (I'd have to look up where I found this info, but after a 15h workday I'm feeling a bit lazy...)

[martinli]

I'm afraid you are right. The tool seems to just simplify the process for tire change ad TPMS relearning.


So the previous owner of my Van must have used Forscan for the change.

[Kibo]

No worries. Forscan seems easy enough, so it's on my list of when-I-get-to-it.

[smithie]

The ignition sequence seems to have worked on my 2010 E350 passenger - but only after multiple tries, and only on the exterior "welcome" lights.

[jim2901]

Thanks for the reply. Do you remember the exact procedure? Did you go through the whole process multiple times or just the "press twice within 5 seconds" part? I tried the latter multiple times waiting 5-6 seconds between each set with no luck.