Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001D1J003X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: NAVIGATION: NAVIGATION SYSTEM: No Navigation Screen Displayed when MAP or DEST Switch Pressed; 2007 MY LX470 [08/2006 -        ]

No Navigation Screen Displayed when MAP or DEST Switch Pressed

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK NAVIGATION ECU (SERVICE CHECK MODE)

(a) Enter the System Check Mode 2007 MY LX470 [08/2006 -        ]; NAVIGATION: NAVIGATION SYSTEM: DTC CHECK / CLEAR .

(b) Check the navigation ECU.

Result:

Result

Proceed to

"NG" is displayed

A

"OK" is displayed

B

"NCON" is displayed

C
A

TROUBLESHOOT FOR EACH DIAGNOSIS

B

REPLACE MULTI-DISPLAY

C

2.

CHECK NAVIGATION ECU POWER SOURCE CIRCUIT

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

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

4.

CHECK DISPLAY SIGNAL CIRCUIT

(a) Check the display signal circuit 2007 MY LX470 [08/2006 -        ]; NAVIGATION: NAVIGATION SYSTEM: Display Signal Circuit between Navigation ECU and Multi-display .

NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

REPLACE MULTI-DISPLAY