Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001B5I003X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: NAVIGATION: NAVIGATION SYSTEM: Display does not Dim when Light Control Switch is Turned ON; 2007 MY LX470 [08/2006 -        ]

Display does not Dim when Light Control Switch is Turned ON

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK SCREEN MODE

(a) 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?)

NG

CHECK LIGHT CONTROL SWITCH

OK

2.

CHECK MULTI-DISPLAY

(a) Measure the voltage of the multi-display.

Standard voltage:

Tester Connection

Condition

Specified Condition

M5-17 (DR) - M5-3 (GND1)

Ignition switch ON, light control switch TAIL or HEAD and cover the automatic light control sensor

Above 9 V

NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

3.

CHECK MULTI-DISPLAY POWER SOURCE CIRCUIT

(a) Check the multi-display power source circuit 2007 MY LX470 [08/2006 -        ]; NAVIGATION: NAVIGATION SYSTEM: Multi-display Power Source Circuit .

NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

REPLACE MULTI-DISPLAY