Front suspension (Failure modes): Description and operation

Failure modes

Failures where the vehicle can still be driven safely are indicated by the ACE warning lamp illuminating continuously with an amber colour. The amber warning lamp will remain illuminated until the ignition is turned off. For all faults the warning lamp will only illuminate again if the fault is still present. Failures which require the driver to stop the vehicle immediately are indicated by the ACE warning lamp flashing with a red colour and an audible warning. All faults are recorded by the ACE ECU and can be retrieved with diagnostic equipment.

The following tables show the type of system failures and their effects on the system operation. Torsion bar 'floppy' means that fluid is allowed to circulate freely through the system. With no pressure in the actuators the torsion bar will have no effect on vehicle roll. 'Locked bars' means that all pump flow is directed through the valve block and returns to the reservoir. Both DCV's close and fluid is trapped in the actuators but can flow from one actuator to the other via the valve block. In this condition the torsion bar will perform similar to a conventional anti-roll bar, resisting roll but still allowing the axles to articulate.

Acceleration sensors

Pressure transducer