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Home >> Toyota >> 2004 >> Land Cruiser >> Repair and Diagnosis >> External Pages >> Different car >> Section 481 (Navigation System - Diagnostics) >> Circuit Inspection >> Screen Cannot Be Dimmed In Night Time >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check if the screen is dimmed at night. (With the light control switch ON), do all screens except the navigation screen appear in Night Mode?) 
    1. NG: Check the light control switch. 
    2. OK: Go to next step. 
  2. Check the multi display. 

    CHECK: 

    Measure the voltage between terminals DR and GND1 of the multi-display.

    OK: 

    DR: Above 9 V 

    1. NG: Replace or repair wire harness. 
    2. OK: Go to next step. 
  3. Check multi-display power source circuit (see  POWER SOURCE CIRCUIT (MULTI-DISPLAY ASSEMBLY)   ). 
    1. NG: Replace or repair wire harness. 
    2. OK: Replace the multi display.