Function Check - ABS

Function Check – ABS

After all operations on the brake system which did not involve ABS aggregates, a simple functional test is sufficient, i.e. approx. 3 sec. after ignition "ON" the ABS warning lamp in the instrument panel must extinguish.

If the ABS warning lamp in the instrument panel does not extinguish, or if it flashes or illuminates permanently while driving, this indicates a fault in the system. When braking hard the vehicle remains safe from wheel lock-up until the vehicle is almost at a standstill (approx. 5 km/h / 3 mph), thus ensuring manoeuvrability.

The brake master cylinder on vehicles with OPEL/VAUXHALL ABS cannot be repaired. It can only be replaced as a complete unit.