Cruise Control Main Switch: Replacement

WARNING: This page is about a different car, the 2004 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.

DISCONNECT BATTERY NEGATIVE TERMINAL (See DISABLING & ACTIVATING AIR BAG SYSTEM )
REMOVE STEERING WHEEL COVER LOWER NO.2
REMOVE STEERING WHEEL COVER LOWER NO.3
REMOVE HORN BUTTON ASSY (See DRIVER-SIDE AIR BAG MODULE and STEERING WHEEL )
REMOVE CRUISE CONTROL MAIN SWITCH
1. Disconnect the connectors.
2. Remove the 2 screws and cruise control main switch.
  
  Fig 1: Removing Cruise Control Main Switch Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: Removing Cruise Control Main Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL HORN BUTTON ASSY (See DRIVER-SIDE AIR BAG MODULE and STEERING WHEEL ).
INSPECT HORN BUTTON ASSY (See DRIVER-SIDE AIR BAG MODULE and STEERING WHEEL )
INSPECT SRS WARNING LIGHT (See AIR BAG RESTRAINT SYSTEMS )