Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT STEREO COMPONENT TUNER (B, ACC, GND)
1. Disconnect the stereo component tuner connector S31.
2. Measure the resistance according to the value (s) in the figure Fig 1 below.
  Standard:
  
  Fig 1: Terminals Resistance Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: Terminals Voltage Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the voltage according to the value (s) in the figure Fig 3 below.
  Standard:
  
  Fig 3: Inspecting Stereo Component Tuner (B, ACC, GND)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN DIAGNOSTIC TROUBLE CODE CHART (SEE DIAGNOSTIC TROUBLE CODE CHART )