SLABS raise/lower

Before enabling a SLS vehicle raise/ lower request, the BCU checks the logical condition of the following inputs:

• Ignition state.
• SLABS raise request.
• SLABS lower request.

If the ignition switch is in position 0 or I, the vehicle raise/ lower request is off.

With the ignition switch in position II, and the 'SLABS raise' request and 'SLABS lower' request both off, the vehicle raise/ lower request output is driven at 25 Hz with a 50% duty cycle and the vehicle height remains unchanged.

If the 'SLABS lower' request input is on, the vehicle raise/lower request output is driven at 25 Hz with a 25% duty cycle, lowering the vehicle.

If the 'SLABS raise' request input is on, the vehicle raise/lower request output is driven at a 25 Hz with a 75% duty cycle.