Note. Completely drain the brake fluid from the master cylinder reservoir. In the lower position of the float, the electrical circuit must be closed.
Fill the reservoir with brake fluid up to the mark «MAX» A. In the upper position of the float, the electrical circuit must be open.
If the ABS or VSA indicator and the brake system indicator come on at the same time, check the ABS or VSA first: ABS, VSA.
If the parking brake/brake fluid level sensors are OK and the brake system indicator is not working, check the ABS or VSA: ABS, VSA.