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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Mobile Communication System Precautions


For vehicles with mobile communication systems such as two-way radios and cellular telephones, observe the following precautions:
- Install the antenna as far as possible away from the Engine Control Module (ECM) and sensors of the vehicle's electronic system.
- Install the antenna feeder at least 20 cm (7.87 in) away from the ECM and sensors of the vehicle's electronics systems. For details about ECM and sensors locations, refer to the section on the applicable component.
- Do not wind the antenna feeder together with the other wiring. As much as possible, also avoid running the antenna feeder parallel with other wire harnesses.
- Confirm that the antenna and feeder are correctly adjusted.
- Do not install powerful mobile communications systems.