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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Test L: Navigation System Will Not Switch On

PINPOINT TEST L: NAVIGATION SYSTEM WILL NOT SWITCH ON

L1-L2:

L2-L4:

L5:

Normal Operation
The audio unit receives voltage through circuits 194 (PK), 797 (LG/VT), and 1000 (RD/BK). Ground is provided to the audio unit through circuit 694 (BK/LG).

Possible Causes
- fuse(s)
- circuit 194 (PK) open
- circuit 694 (BK/LG) open
- circuit 797 (LG/VT) open
- circuit 1000 (RD/BK) open
- audio unit