Pre-Drive Check
WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.
The pre-drive check serves as:
- A check of internal functions in the instrument cluster
- Monitoring of the live signals from all control units that may emit Check-Control messages
During the pre-drive check, the most important indicator and warning lights are activated for 4 seconds when terminal 15 is switched ON. Exception: Indicator and warning lights for airbags actuated when terminal R is switched ON.
The following indicator and warning lights are activated in the pre-drive check:
- Seat-belt warning
- Airbag (initially yellow, then red)
- Anti-lock brake system (ABS)
- General brake warning light (initially yellow, then red)
- Emission warning lamp
- Dynamic Stability Control (DSC)
- Active Front Steering
- ACC control by driver or object detected (initially yellow, then red)
Once a pre-drive check completes successfully, all indicator and warning lights are switched off. If a fault occurs during the pre-drive check, the check is interrupted for the system in question. The indicator and warning lights for this system remain on. The Check-Control system issues the appropriate message.