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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Fuel Pump Control Module, Checking







Fuel Pump Control Module, Checking

On vehicles with the TFSI engine, the fuel pump is supplied with voltage via the Fuel Pump (FP) control module (J538).

FP control module testing occurs in "Guided Fault Finding" operating mode using the vehicle diagnostic tester.