Indicator Lamps

Indicator Lamps
There are a total of 24 indicator and warning lamps in the instrument cluster of the new Z4. The following two lamps are new additions to the established lamps:
^ Indicator lamp for EPS: The Electric Power Steering system is used in the new Z4 for the first time.
^ Indicator lamp for lamp monitoring: This lamp indicates lamp failure in the headlights, rear lights and brake lights and is activated by the light switch center.














The instrument cluster receives input signals through the following channels:
^ Via the K bus
^ Via the PTCAN bus
^ Directly from the sensors

Predrive Check
The Predrive Check is a test of important indicator and warning lamps. In the Predrive Check, these indicator and warning lamps are activated for 2 seconds with terminal 15 ON. All the indicator and warning lamps are deactivated at the end of the Predrive Check.