Toyota 4Runner: Display does not Dim when Light Control Switch is Turned ON

Toyota 4Runner Service Manual / Audio / Visual / Telematics / Navigation / Multi Info Display / Navigation System / Display does not Dim when Light Control Switch is Turned ON

CAUTION / NOTICE / HINT

NOTICE:

After replacing the navigation receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the XM radio ID is necessary.

PROCEDURE

1.	CHECK IMAGE QUALITY SETTING

(a) Turn the light control switch to the tail or head position.

(b) Check that the daytime screen setting on the display adjustment screen is set to on.

Result	Proceed to
Daytime screen setting is set to on.	A
Daytime screen setting is set to off.	B

CHANGE DAYTIME SCREEN SETTING TO OFF

2.	CHECK VEHICLE SIGNAL (OPERATION CHECK)

(a) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check (See page ).

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

OK:

Light Control Switch	Display
Tail or head	ON
Off	OFF

HINT:

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

(c) Check that the display for "ADIM/TCAN" changes between DIM and BRIGHT according to the light control switch operation.

OK:

Light Control Switch	Display
Tail or head	DIM
Off	BRIGHT

REPLACE NAVIGATION RECEIVER ASSEMBLY

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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