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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Description Of Activation






Description of activation

Exterior lighting

Left low beam, activated
Activates left low beam.

Right low beam, activated
Activates right low beam.

Front left parking lamp, activated
Activates the front left parking lamp

Front right parking lamp, activated
Activates the front right parking lamp

Rear left parking lamp, activated
Activates the rear left parking lamp

Rear right parking lamp, activated
Activates the rear right parking lamp.

Brake lights, activated
Activates the brake lights.

Fuel pump (FP) relay

Fuel pump (FP) relay
Activates the fuel pump relay that powers the fuel pump control module. For vehicles with diesel engines built before 11w20 the relay powers the fuel pump directly.

Automatic start/stop of engine

(only on vehicle with the automatic engine start/stop function).

Secondary Battery Relay
To activate the secondary battery relay, see Automatic start/stop of engine.