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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Faults on Peripheral Systems

Faults on peripheral systems
During the internal check and while the soft-top is being raised/lowered, the signals from peripheral systems are checked for plausibility. Those signals must be within the defined valid operating ranges.
Examples of peripheral system signals are:
^ Outside temperature
^ Vehicle stationary signal
^ Signals from the fully automatic soft-top, etc.

Storage of faults
Faults are stored in the order in which they occur. The Soft-top module 4 has up to 16 fault storage locations available in its fault memory.