System functions: Notes

The control unit of the instrument cluster incorporates certain functions over and above the display and indication functions, namely:

• Lighting of the instrument cluster
• Dimming of the instrument cluster
• Undervoltage detection and overvoltage detection for the instrument cluster
• Heating and contrast for the liquid-crystal display
• On-board computer functions
• Check-Control messages
• Pre-drive check
• Outside temperature compensation
• Condition Based Service (CBS)
• Vehicle identification check