DTC B3031: PASS-Key(R) II PROGRAMMING MODE ACTIVE: Notes
WARNING: This page is about a different car, the 1999 Buick Regal and 1999 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If DTC B2957 or B2958 also exist, diagnose and repair these codes first. These DTCs will affect BCM's ability to properly read a PASS-Key(R) II resistance value.