Operation CHARM: Car repair manuals for everyone.
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

Checking Blower Fan Function




Checking Blower Fan Function







- Ignition on (For ECC, start engine).
- Start blower fan.

Check that blower fan functions, that it is possible to control fan speed and that there is no unusual noise from the fan etc.


NOTE: For ECC, check also fan function in AUT position (move passenger compartment temperature selector so the fan starts).