Non-Glare High-Beam Assistant: Diagnosis

The exterior lighting must be set to the "diagnostic mode" as a condition for carrying out various diagnosis orders. For example, the "diagnostic mode" is required for the following diagnosis orders:

• Reading out relevant bus signals while the vehicle is stationary
  • Speed
  • Yaw rate
  • Steering angle
• Analysis of switch-on conditions
  • Status of rain-light-solar-condensation sensor.
  • Status of non-glare high-beam assistant
  • Status of light switch

Missing or implausible bus signals will be stored as faults.

The types of faults are stored in the headlight driver module. The footwell module (FRM) or the front electronics module (FEM) or the body domain controller (BDC) enables access to the headlight driver module.