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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With Oil Level Check Switch




Engine Oil Information Function




A1 Instrument cluster
N3/10 ME-SFI [ME] control module
S43 Switch of oil level check
CAN Databus(Controller Area Network)




S43 Switch of oil level check

The display in the instrument cluster warns the driver that the oil level is too low.

Oil level switch at oil pan shifts to ground. Contact opens if oil level is too low.

Note: When inserting CAN capable instrument cluster, the information is transmitted via CAN from ME control module to the instrument cluster.