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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Air Conditioning (A/C) System Component Monitoring

.12.00.00 AIR CONDITIONING (A/C) SYSTEM COMPONENT MONITORING

The engine control module compensates the additional AC load via engine torque.
The components of the AC systems are not used for OBD functions and can not disable monitors independent of separate or integrated climatic control modules. Integrated climatic control modules may be a separated part of the ECM as box in a box unit.