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.

CHECK COMBINATION METER ASSY
1. Check driver seat belt warning operation.
  1. Remove the combination meter assy with connectors still connected.
  2. Ground the terminal C7-5 of combination meter assy connector.
  3. Turn the ignition switch to ON.
  4. Check that the seat belt warning light blinks.
    OK: Warning light blinks.
NG: REPLACE COMBINATION METER ASSY

OK: Go to next step.
INSPECT FRONT SEAT INNER BELT ASSY LH
1. Check resistance.
  
  Fig 2: Inspecting Front Seat Inner Belt Assy LH Resistance
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Check resistance between terminals 1 and 4 of front seat inner belt assy LH.
    Standard resistance:
Fig 3: Front Seat Inner Belt Assy LH Resistance Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FRONT SEAT INNER BELT ASSY LH

OK: Go to next step.
CHECK HARNESS OR CONNECTOR (BETWEEN COMBINATION METER ASSY AND FRONT SEAT INNER BELT ASSY LH)
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step.
CHECK HARNESS AND CONNECTOR (BETWEEN FRONT SEAT INNER BELT ASSY LH AND BODY GROUND)
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE COMBINATION METER ASSY