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 spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
Torque Reduction Signal: Description and Operation
OPERATION The torque reduction data link line is connected between the Transmission Control Module
(TCM) and the
Powertrain Control Module (PCM). It is used as a communication link for the TCM to instruct the PCM to back down the engine torque output before the vehicle shifts.