First of all, the second photo on the previous page is that of the Auto Gearbox Inhibitor Switch!! The bulb is fixed to the end of the whole switch assembly. According to the Haynes manual, you're supposed to remove the centre console before attempting to remove this switch. On the same side as the bulb, there is a screw embedded in the switch. Put bluntly, you're not supposed to "screw around" with that screw, as it prevents the motor from starting up whilst the selector button is depressed. After renewing the switch, you turn the screw clockwise until you CAN start the engine whilst the selector button is depressed. Then you turn it anti-clockwise until you CANNOT start the engine whilst the selector button is depressed and a further quater-turn anti-clockwise to be safe!