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.

INSPECT FUSE (DOME, ECU-ACC)
1. Check the continuity in DOME 1 fuse.
2. Check the continuity in ECU-ACC fuse.
NG: REPLACE FUSE

OK: Go to next step.
CHECK CLOCK ASSY
1. Check voltage.
  1. Disconnect the connector from clock assy.
  2. Measure voltage between each terminals of clock assy and body ground at each condition as shown in the chart.
  Standard:
  
  Fig 2: Clock Assy Voltage Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check continuity.
  1. Check the continuity in between terminal 2 of clock assy and body ground.
  Standard: Continuity exists.
OK: CHECK AND REPLACE CLOCK ASSY

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR