Inspection Procedure

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

PERFORM ACTIVE TEST BY HAND-HELD TESTER
1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON and push the hand-held tester main SW ON.
3. Select the item "TAIL LIGHT" in the ACTIVE TEST and operate the taillight.
  OK: Taillight relay ON in tester - taillight lights up.
  
  OK: Go to step 3
  
  NG: Go to next step
INSPECT TAIL LAMP RELAY
1. Inspect tail lamp relay continuity.
  
  Fig 1: Inspecting Tail Lamp Relay Continuity
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: Tail Lamp Relay Continuity Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: REPLACE TAIL LAMP RELAY
  
  OK: REPAIR OR REPLACE HARNESS AND CONNECTOR (BETWEEN DRIVER SIDE J/B ASSY AND TAIL LAMP RELAY)
READ VALUE OF HAND-HELD TESTER
1. Connect the hand-held tester to the DLC3.
2. Check the tail light using DATA LIST.
  
  Fig 3: Tail Light Using Data List Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: REPLACE HEADLAMP DIMMER SWITCH ASSY
  
  OK: CHECK AND REPLACE DRIVER SIDE JUNCTION BLOCK ASSY (BETWEEN DRIVER SIDE J/B AND TAIL LAMP RELAY