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)

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Blower Motor Switch: Testing and Inspection






1. Disconnect electrical connector from blower control switch.

2. Check for continuity between switch terminals. Continuity should exist between terminals;

B and LY switch position 1
B and L switch position 2
B and LR switch position 3
B and LB switch position 4