Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJ4C
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: Display does not Dim when Light Control Switch is Turned ON; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

Display does not Dim when Light Control Switch is Turned ON

PROCEDURE

1.

CHECK IMAGE QUALITY SETTING

(a) Display the "Display" screen.

(b) Turn the headlight dimmer switch assembly to the tail or head position.

(c) Check if "Day Mode" on the display adjustment screen is on.

OK:

"Day Mode" setting is off

NG

TURN "Day Mode" SETTING OFF
OK

2.

CHECK VEHICLE SIGNAL (OPERATION CHECK)

(a) Enter the "Vehicle Signal Check Mode" screen. [Refer to Check Vehicle Signal in Operation Check (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: OPERATION CHECK )]

(b) Check that the display for "TAIL" changes between ON and OFF according to the headlight dimmer switch assembly operation.

HINT:

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

OK:

Headlight Dimmer Switch Assembly

Display

Tail or head

ON

Off

OFF
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: PROBLEM SYMPTOMS TABLE )