Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the logical successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la
BLM - Block Learn Memory Cell
There are from 2 to 16 different cells which the
Engine Control Module (ECM) learns at depending upon RPM and air flow. This parameter displays which cell the ECM is using for fuel calculations at the present time.