Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT MULTI-DISPLAY CONTROLLER SUB-ASSY (+B1, ACC, GND)
1. Check continuity between terminals at each condition, as shown in the chart.
  Standard:
  
  Fig 1: Terminals Continuity Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check voltage between terminals at each condition, as shown in the chart.
  Standard:
  
  Fig 2: Terminals Voltage Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 3: Inspecting Multi-Display Controller Sub-Assy (+B1, ACC, GND)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step.
CHECK FOR PROBLEM SYMPTOMS TABLE
1. Check problem symptoms table.
  
  Fig 4: Problem Symptoms Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE PROBLEM SYMPTOMS TABLE

A: CHECK AND REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSY