Leaderboard

The WRITE button is used to make changes to hex data in that register. I have not used the RESTORE function. I don't know why the as built data does not exactly match the Forscan data. You can change individual hex bits in the IPC, ACM but not the BCM. All BCM changes will be done using the menu selections. There are configurations in the central configuration that we can't see and can only be changed by the functions built into the menus. Save a copy of every module. A mistake in one may propogate into others. There are many tutorials. This one is for the F-150 and explains how to change individual hex bits. FORScan Tutorial.pdf

Ford ETIS never showed any change for my BCM after I had Ford update it & turn off the approach lights, so I don't think that will be a reliable way to verify the BCM update. My approach lights are definitely off, so the BCM was updated, lol. As for the battery issue, I had to get mine replaced a few weeks ago, even before the 4 years anniversary of me buying the van; but, it had 102K miles at time of replacement and the battery was going bad for a few weeks, problems started at about 98-99K miles or so for me. I can probably hook up my laptop tonight to read my BCM parameters, after I reinstall Forscan since I had to blow-out/reset my whole laptop due to various issues.

Your experience is normal. 1. Your battery is near the end of its lifetime. My 2016 shows 30% life left in the battery monitoring system (a feature on the 1.6l Ecoboost). 2. The DRLs and "run" position when using Forscan puts a big load on the battery. 3. Now I ALWAYS use a battery charger when making changes using Forscan. When the vehicle was new I got away without using one. 4. Reading data and DTCs don't require any battery backup/protection.

Approach lights "disabled" and the lights still come on. The whole story; 1) Took it to a Ford dealer a year ago. They claimed they updated the BCM and turned the approach lights off, but the lights were still on. The service manager tried to charge me for it with some double talk but when I told him I knew they'd get paid for the update by Ford then he backed off (free). 2) Second dealer last December was happy to check it out for me since I bought the van through one of their area stores. They confirmed the first dealer did in fact update the BCM but were unable to turn off the approach lights. 3) Today......I purchased a used laptop (windows) from a fellow TC owner on this forum and the Forscan adaptor from Amazon. After a bit of time lost linking the extended license to the Forscan I hooked it up to my van. The found the approach lights were "disabled". I cycled through "enabled" and "disabled" 3 times leaving them "disabled" and the approach lights are still ON. This frustrates me to no end. The only permanent solution I know of at this point is the get rid of the van.