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
Engine Cooling Fan Control
The engine cooling fan control is partitioned between the
PCM and the
BCM via class 2. The main algorithm control resides in the BCM . The BCM sends a fan speed command to the PCM. The PCM processes this command along with its own fan request. The PCM determines what the actual fan speed should be.