Fade Out

WARNING: This page is about a different car, the 2004 Land Rover Discovery, 2003 Land Rover Discovery, 2002 Land Rover Discovery, and 2001 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.

To provide a safe transition from active braking to brakes off, the SLABS ECU invokes a fade out strategy if it detects any of the following during active braking:

A system fault.
The conditions for HDC are no longer being met.
Possible brake overheat.

The fade out strategy increases the target speed at a low constant acceleration rate, independent of actual throttle position. This results in the braking effort being gradually reduced and then discontinued. The SLABS ECU operates warning indications during fade out that are dependent on the cause.

Fig 1: Fade Out Warning Indications

Courtesy of LAND ROVER NORTH AMERICA, INC.