Epiphany
Well-Known Member
Just spent a couple of hours sleuthing. Hopefully I'm onto something.
I started with Mr XXX0's VIN that he shared with me. I went online and searched only for 2021 HP Mach 1's that were either with RSD or without RSD. I tried to match the rest of the option content as well to his. I then downloaded the AB data direct from the Motorcraft site for each VIN. I also downloaded AB data for 2021 GT500's in both CFTP and Base. I found some consistency across the two models when I ran the AB data through a comparator that looks at the data for each control module which makes it easy to spot any differences. Ford has made some address changes recently and the comparator is a few years old now so I'm not certain the module listed is correct as I haven't looked to verify. It'd be nice if any of you savvy FORScan guys can chime in.
I looked at a sampling of 3 or 4 VINs for each category but am showing the comparator with 1 pair of each as I think it represents the sample accurately. Below is a crop from the comparator that I then labeled to make it easier to identify for you. The top two VINs were cars that were optioned with a rear seat delete and the bottom two listed came with rear seats. Again, this is just a crop, there is no way I could fit all the data it spews out (and no need to).
I scoured through everything looking closely at similarities between all RSD cars versus cars that had rear seats, and I had them run in the order (and color coding) shown above. The 737-02-01 address, shown listed below as the Restraint Control Module, was always showing the RSD cars as the same as each other and the non-RSD cars the same as each other as well. So look at the first two lines (which are RSD HP Mach1's) and scroll over to the values that show "10A8." Then notice the two lines beneath (in the same column) both show "7008."
I then looked at comparing two 2021 CFTP GT500's against two 2021 Base GT500's as the CFTP cars come with the RSD and the Base cars do not.
Guess what....same as with the Mach1 cars. Again, the top two lines are from GT500 RSD cars and the bottom two are from GT500 cars that had rear seats.
The RCM part number is the same for both the GT500 and the Mach1 according to the AB data. Interestingly enough, within the RCM's there were plenty of differences at certain addresses among the sampling but the 737-02-01 address looks to consistently show the same data for RSD cars (whether CFTP GT500 or HP Mach1 with the RSD option) and it also shows the same similarity between the non-RSD cars.
I suppose you could test by unplugging the rear belt sensor(s) in a given non-RSD 2021 Mustang and then dive into FORScan to see if changing the HEX values at the appropriate 737 address turns off the reminder.
I started with Mr XXX0's VIN that he shared with me. I went online and searched only for 2021 HP Mach 1's that were either with RSD or without RSD. I tried to match the rest of the option content as well to his. I then downloaded the AB data direct from the Motorcraft site for each VIN. I also downloaded AB data for 2021 GT500's in both CFTP and Base. I found some consistency across the two models when I ran the AB data through a comparator that looks at the data for each control module which makes it easy to spot any differences. Ford has made some address changes recently and the comparator is a few years old now so I'm not certain the module listed is correct as I haven't looked to verify. It'd be nice if any of you savvy FORScan guys can chime in.
I looked at a sampling of 3 or 4 VINs for each category but am showing the comparator with 1 pair of each as I think it represents the sample accurately. Below is a crop from the comparator that I then labeled to make it easier to identify for you. The top two VINs were cars that were optioned with a rear seat delete and the bottom two listed came with rear seats. Again, this is just a crop, there is no way I could fit all the data it spews out (and no need to).
I scoured through everything looking closely at similarities between all RSD cars versus cars that had rear seats, and I had them run in the order (and color coding) shown above. The 737-02-01 address, shown listed below as the Restraint Control Module, was always showing the RSD cars as the same as each other and the non-RSD cars the same as each other as well. So look at the first two lines (which are RSD HP Mach1's) and scroll over to the values that show "10A8." Then notice the two lines beneath (in the same column) both show "7008."
I then looked at comparing two 2021 CFTP GT500's against two 2021 Base GT500's as the CFTP cars come with the RSD and the Base cars do not.
Guess what....same as with the Mach1 cars. Again, the top two lines are from GT500 RSD cars and the bottom two are from GT500 cars that had rear seats.
The RCM part number is the same for both the GT500 and the Mach1 according to the AB data. Interestingly enough, within the RCM's there were plenty of differences at certain addresses among the sampling but the 737-02-01 address looks to consistently show the same data for RSD cars (whether CFTP GT500 or HP Mach1 with the RSD option) and it also shows the same similarity between the non-RSD cars.
I suppose you could test by unplugging the rear belt sensor(s) in a given non-RSD 2021 Mustang and then dive into FORScan to see if changing the HEX values at the appropriate 737 address turns off the reminder.
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