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

Solar Load Sensor

The solar load sensor is a light sensitive photodiode which senses ambient light levels in the vehicle. The HVAC module uses this information to compensate for the "green house" effect the sun has on the interior of the vehicle.