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 "ILLUMI OUTPUT" in the ACTIVE TEST and operate the interior lamp.
  OK: Lamp SW ON in tester - lamp lights up.
  
  NG: CHECK AND REPLACE DRIVER SIDE JUNCTION BLOCK ASSY
  
  OK: Go to Next Step.
CHECK DRIVER SIDE JUNCTION BLOCK ASSY
1. Measure voltage between terminals when opening the front door LH only.
  Standard:
  
  Fig 1: Measuring Voltage Between Terminals When Opening Front Door LH Only
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: CHECK AND REPLACE DRIVER SIDE JUNCTION BLOCK ASSY
  
  NG: Go to Next Step.
INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY (DRIVER SIDE DOOR)
1. Inspect front door courtesy lamp switch continuity.
  1. Check that there is continuity between terminal 1 and body ground, when switch is operated.
  Standard:
  - ON (When shaft is pressed): No continuity
  - OFF (When shaft is not pressed): Continuity
  NG: REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY (DRIVER SIDE DOOR)
  
  OK: Go to Next Step
CHECK HARNESS AND CONNECTOR (BETWEEN DRIVER SIDE J/B ASSY AND FRONT DOOR COURTESY LAMP SWITCH)
1. Disconnect the connector of the multiplex network body ECU.
2. Check the continuity between terminal B6 - 1 (DCTY) and body ground.
  Standard: There is continuity.
  
  NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  
  OK: Go to Next Step.
CHECK DRIVER SIDE JUNCTION BLOCK ASSY
1. Check that signal waveform appears between terminals when opening the front door RH only.
  Standard:
  
  Fig 2: Checking Signal Waveform Appears Between Terminals When Opening Front Door RH Only Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: CHECK AND REPLACE DRIVER SIDE JUNCTION BLOCK ASSY
  
  NG: Go to Next Step.
INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY (PASSENGER SIDE DOOR)
1. Inspect front door courtesy lamp switch continuity.
  1. Check that the continuity exists between terminal 1 and body ground when switch is operated.
  Standard:
  - ON (When shaft is pressed): No continuity
  - OFF (When shaft is not pressed): Continuity
  NG: REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY (PASSENGER SIDE DOOR)
  
  OK: Go to Next Step.
CHECK HARNESS AND CONNECTOR (BETWEEN DRIVER SIDE J/B ASSY AND FRONT DOOR COURTESY LAMP SWITCH)
1. Disconnect the connector of the multiplex network body computer.
2. Check the continuity between terminal B4 - 11 (PCTY) and body ground.
  Standard: There is continuity.
  
  NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  
  OK: Go to Next Step.
CHECK DRIVER SIDE JUNCTION BLOCK ASSY
1. Check that signal waveform appears between terminals, when opening the rear door LH only.
  Standard:
  
  Fig 3: Checking Signal Waveform Appears Between Terminals When Opening Rear Door LH Only Charts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: CHECK AND REPLACE DRIVER SIDE JUNCTION BLOCK ASSY
  
  NG: Go to Next Step.
INSPECT REAR DOOR COURTESY LAMP SWITCH ASSY (REAR DOOR RH)
1. Inspect rear door courtesy lamp switch RH continuity.
  1. Check that the continuity exists between terminal 1 and body ground, when switch is operated.
  Standard:
  - ON (When shaft is pressed): No continuity
  - OFF (When shaft is not pressed): Continuity
  NG: REPLACE REAR DOOR COURTESY LAMP SWITCH ASSY (REAR DOOR RH)
  
  OK: Go to Next Step.
CHECK HARNESS AND CONNECTOR (BETWEEN DRIVER SIDE J/B ASSY AND REAR DOOR COURTESY LAMP SWITCH RH)
1. Disconnect the connector of the multiplex network body ECU.
2. Check the continuity between terminal B4-14 (RRCY) and body ground.
  Standard: There is continuity.
  
  NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  
  OK: Go to Next Step.
CHECK DRIVER SIDE JUNCTION BLOCK ASSY
1. Check that signal waveform appears between terminals when opening the rear door RH only.
  Standard:
  
  Fig 4: Checking Signal Waveform Appears Between Terminals When Opening Rear Door RH Only Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: CHECK AND REPLACE DRIVER SIDE JUNCTION BLOCK ASSY
  
  NG: Go to Next Step.
INSPECT REAR DOOR COURTESY LAMP SWITCH ASSY (REAR DOOR LH)
1. Inspect rear door courtesy lamp switch LH continuity.
  1. Check that the continuity exists between terminal 1 and body ground when switch is operated.
  Standard:
  - ON (When shaft is pressed): No continuity
  - OFF (When shaft is not pressed): Continuity
  NG: REPLACE REAR DOOR COURTESY LAMP SWITCH ASSY (REAR DOOR LH)
  
  OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (BETWEEN DRIVER SIDE J/B ASSY AND COURTESY LAMP SWITCH)