Horn Button ASSY: Replacement

(See PRECAUTION )
DISCONNECT BATTERY NEGATIVE TERMINAL (See PRECAUTION )
REMOVE HORN BUTTON ASSY
1. Place the front wheels facing straight ahead.
2. Using a Torx socket wrench (T30), loosen the 2 Torx screws until the groove along the screw circumference catches on the screw case.
  
  Fig 1: Loosening 2 Torx Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the horn connector.
  
  Fig 2: Disconnecting Horn Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Pull out the horn button assy from the steering wheel assy and support the horn button assy with one hand as shown in the illustration.
  NOTE: When removing the horn button assy, do not pull the airbag wire harness.
5. Using a screwdriver, disconnect the horn button assy connectors.
6. Remove the horn button assy.
  
  Fig 3: Pulling Out Horn Button Assy From Steering Wheel Assy
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL HORN BUTTON ASSY
1. Support the horn button assy with one hand as shown in the illustration.
2. Connect the horn button assy connectors.
  
  Fig 4: Supporting Horn Button Assy & Connecting Horn Button Assy Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect the horn connector.
4. Confirm that the circumference groove of the Torx screw fits in the screw case, and place the horn button assy onto the steering wheel assy.
5. Using a Torx socket wrench (T30), tighten the 2 screws.
  Torque: 8.8 N.m (90 kgf.cm, 78 in.lbf)
  
  Fig 5: Connecting Horn Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT HORN BUTTON ASSY
1. Perform a visual check which includes the following items with the horn button assy installed in the vehicle: Cuts, minute cracks or marked discoloration on the horn button assy top surface and in the grooved portion.
  
  Fig 6: Identifying Horn Button Assy Installed In Vehicle
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT SRS WARNING LIGHT (See DIAGNOSIS SYSTEM )