Toyota Tacoma (2015-2018) Service Manual: Display does not Dim when Light Control Switch is Turned ON

Toyota Tacoma (2015-2018) Service Manual / Audio / Video / Audio And Visual System / 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 light control switch to the tail or head position.

OK:

"Day Mode" setting is off

TURN "Day Mode" SETTING 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 changes between ON and OFF according to the light control switch operation.

OK:

Light Control Switch	Display
Tail or head	ON
Off	OFF

HINT:

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

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Illumination for Panel Switch does not Come on with Tail Switch ON

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Panel Switches do not Function

PROCEDURE 1. CHECK PANEL SWITCH (a) Check for foreign matter around the switches that might prevent operation. OK: No foreign matter is found. NG ...

Other materials:

Open Circuit in IG1/IG2 Power Source Circuit (C1242)
DESCRIPTION If there is a problem with the skid control ECU (master cylinder solenoid) power supply circuit, the skid control ECU outputs the DTC and prohibits operation under the fail safe function. If the voltage supplied to terminal IG1 and/or IG2 is not within the DTC detection threshold ...

Operation Check
OPERATION CHECK 1. CHECK FUNCTION (a) Check that the key reminder warning buzzer sounds. (1) With the driver side door closed, insert the key into the ignition key cylinder and then turn the key to LOCK or ACC. (2) Check that the buzzer sounds intermittently when the driver side door is open ...

Gauges and meters
The following gauges, meters and displays illuminate when the engine switch is in the ON position. Tachometer Displays the engine speed in revolutions per minute. Speedometer Displays the vehicle speed. Engine coolant temperature gauge Displays the engine coolant temperature. Fuel gauge ...