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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For Vehicles Equipped With Mobile Communication Systems

FOR VEHICLES EQUIPPED WITH MOBILE COMMUNICATION SYSTEMS




a. Install the antenna far away from the ECU and sensors of the vehicle electronic systems as possible.
b. Install an antenna feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the vehicle electronic systems. For details about ECU and sensors locations, refer to the section on the applicable components.
c. Keep the antenna and feeder separate from other wirings as much as possible. This will prevent signals sent from the communication equipment from affecting vehicle equipment and vice-versa.
d. Check that the antenna and feeder are correctly adjusted.
e. Do not install any high-powered mobile communication system.