Light Failure Sensor: Inspection

WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT LIGHT FAILURE SENSOR
1. Remove the taillight bulb or stop light bulb.
2. Turn the engine switch on (IG) and check the rear light indicator light.
3. OK:
  The rear light indicator light comes on.
  
  HINT:
  
  If the indicator light does not come on, check the light failure indicator (See PROBLEM SYMPTOMS TABLE ).