Toyota Tundra. Manual — part 559

OK: PRESS PANEL SWITCH "DISPLAY" AND SET SCREEN COLOR QUALITY TO
NORMAL

3. CHECK CABIN

a. Check that condensation is not likely to occur in the cabin, and that the temperature is not high or

extremely low in the cabin.

HINT:



A humid cabin and a rapid change in temperature may lead to condensation. Condensation in
the cabin may short circuit the screen.



The appropriate cabin temperature is 20 to 30°C (68 to 86°F).

OK: Condensation is not likely and temperature is not high or extremely low.

NG: SET CABIN TO APPROPRIATE TEMPERATURE

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE

ILLUMINATION FOR PANEL SWITCH DOES NOT COME ON WITH TAIL SWITCH ON

INSPECTION PROCEDURE

1. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE)

a. Enter the "Display Check" mode (Vehicle Signal Check Mode) (see DISPLAY CHECK MODE ).

b. Check that the display changes between ON and OFF according to the light control switch

operation.

OK

LIGHT CONTROL SWITCH SPECIFICATION

Fig. 344: Diagnostic Menu Screen Display - Vehicle Signal Check Mode

Light Control Switch Display

TAIL or ON

ON

OFF

OFF

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

This display is updated once per second. As a result, it is normal for the display to lag behind the
actual change in the switch.

Result

LIGHT CONTROL SWITCH RESULT CHART

B: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Floor Shift Type) )

C: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

A: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Column Shift Type) )

DISPLAY DOES NOT DIM WHEN LIGHT CONTROL SWITCH IS TURNED ON

INSPECTION PROCEDURE

1. CHECK IMAGE QUALITY SETTING

a. Enter the display adjustment screen by pressing the "DISP" switch.

Fig. 345: Identifying DISP Switch
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Turn the light control switch to the TA4L position.

c. Check if "Day Mode" on the display is ON.

OK: "Day Mode" is ON.

Result

Proceed to

OK (for Column Shift Type)

A

OK (for Floor Shift Type)

B

NG

C

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

NG: Go to step 2

OK: TURN "DAY MODE" SETTING OFF

2. CHECK VEHICLE SIGNAL (DISPLAY VEHICLE SIGNAL)

a. Enter the "Display Check" mode (Vehicle Signal Check Mode) (see DISPLAY CHECK MODE ).

b. Check that the display changes between DIM and BRIGHT according to the light control switch

operation.

OK

VEHICLE SIGNAL (DISPLAY VEHICLE SIGNAL)

Fig. 346: Diagnostic Menu Screen Display - Vehicle Signal Check Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

The display is updated once per second. It is normal for the display to lag behind the actual switch
operation.

Result

LIGHT CONTROL SWITCH RESULT CHART

B: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Floor Shift Type) )

C: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

A: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Column Shift Type) )

Light Control Switch Condition Display Condition

TAIL or ON

ON

OFF

OFF

Result

Proceed to

OK (for Column Shift Type)

A

OK (for Floor Shift Type)

B

NG

C

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

PANEL SWITCHES DO NOT FUNCTION

INSPECTION PROCEDURE

1. CHECK PANEL SWITCH

a. Check for foreign matter around the switch that might prevent operation.

OK: No foreign matter is found.

NG: REMOVE ANY FOREIGN MATTER

OK: Go to Next Step

2. CHECK PANEL SWITCH (DISPLAY CHECK MODE)

a. Enter the "Display Check" mode (Panel Switch Check Mode) (see DISPLAY CHECK MODE ).

b. Operate the abnormal switch and check if the switch name and status are correctly displayed.

OK: The switch name and status are correctly displayed as operated.

Result

PANEL SWITCH (DISPLAY CHECK MODE) RESULT CHART

Fig. 347: Diagnostic Menu Screen Display - Panel Switch Check Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

B: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Floor Shift Type) )

C: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

A: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Column Shift Type) )

TOUCH PANEL SWITCH DOES NOT FUNCTION

Result

Proceed to

OK (for Column Shift Type)

A

OK (for Floor Shift Type)

B

NG

C

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra