Check Control

Check Control (540i)

The Check Control of the high-variant instrument cluster corresponds to the E38 in function and operation. The LCM collects and evaluates all check control data inputs from the various switches and sensors. This includes the lamp monitoring function that is now carried out within the same module. The failure or warning messages are formed in the LCD and transmitted to the IKE over the "I" bus for display in the cluster matrix.

The cluster matrix contains a 20 character display field for posting messages. Failures and warnings are prioritized for display following the same criteria as the E38.

Priority P1 - Critical or important warnings that cannot be canceled with the CC button.







Priority P2 - Messages that are displayed when KL 15 is switched on for a maximum of 23 seconds or when the failure occurs for while driving.







Priority P3 - Messages that are only displayed at the start of or end of a trip.







Special Warnings: These are top priority messages and won't be overridden when displayed. Seatbelt, ignition key in lock with door open are some of these messages.

















The CC button or steering column switch can be used to call up or cancel P2 or P3 messages.

The language of the check control display is set with the central coding key and cannot be changed by the driver.