Air Pump: Disassembly

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE PRESSURE SENSOR
1. Remove the vacuum hose from the pressure sensor and air switching valve.
2. Remove the 2 bolts and pressure sensor from the air switching valve.
  
  Fig 1: Removing Bolts & Pressure Sensor From Air Switching Valve
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE AIR SWITCHING VALVE
1. Remove the 2 bolts and air switching valve from the air pump bracket.
2. Remove the No. 1 air hose from the air switching valve and air pump.
  
  Fig 2: Removing Bolts & Air Switching Valve From Air Pump Bracket
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002