Abstract: A position control apparatus for a motor vehicle steering column includes an outer bracket, an inner bracket moveable relative to the outer bracket, and a jacket mounted to the inner bracket for telescoping movement along a longitudinal axis and for tilting movement. A first rack is mounted to the inner bracket and extends along the longitudinal axis. A first pinion is rotatable along the first rack during telescoping movement. A second rack is mounted to the outer bracket and extends angularly relative to the longitudinal axis. A second pinion is rotatable along the second rack during tilting movement. The first pinion has a first locking surface and the second pinion has a second locking surface. The first locking surface and the second locking surface may be engaged with each other to prevent telescoping and tilting movement or may be disengaged from each other to allow telescoping and tilting movement.

Abstract: The invention provides a controller for determining the presence of faults within a fuel injection system of an engine system. The engine system comprises a first injector and at least one further injector, each injector comprising a needle control valve and a pressure control valve. The controller comprises: inputs for receiving data relating to a first engine system parameter; outputs for outputting a control function for controlling the injector valves of each of the injectors, and; a processor for controlling the control function output from the controller.