tapachula: hi . I have not seen your tweak instruction before. I've also not seen
71679 used as a security code in the ABS module @ address hex03.
I have started a list of security codes
HERE which you are welcome to try on your tweak instructions.
Please be aware that control modules will lock-out if you enter the wrong security code. If this happens, the lock-out time can be upward of 20 minutes and the time is measured with the ignition switched-on
Please provide feedback if your tweak instructions are successful
Don