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)
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ECM/PCM Interaction With Traction Control
The
EBTCM is the "master" of the traction control system. It communicates with the ECM/PCM through torque requested and torque delivered signals. When wheel slip is detected the EBTCM will send a torque requested signal to the ECM/PCM to reduce engine torque. The ECM/PCM will reduce engine torque and send this torque reduction signal back to the EBTCM. If wheel slip is still present the EBTCM and ECM/PCM will continue to send these signals back and forth until wheel slip is under control