Display Does Not Dim When Light Control Switch Is Turned ON

NAVIGATION: NAVIGATION SYSTEM (for HDD): Display does not Dim when Light Control Switch is Turned ON
- Display does not Dim when Light Control Switch is Turned ON

DESCRIPTION

The multi display assembly dims the display according to illumination signal input.

The display and navigation module display switches between the daytime screen and night screen on the multi display according to the illumination signal input.

WIRING DIAGRAM

INSEPCTION PROCEDURE

PROCEDURE

1. CONFIRM SYMPTOMS

(a) Check the symptoms that occur by viewing the display.

Result

C -- GO TO LIGHTING SYSTEM

B -- CHECK IMAGE QUALITY SETTING
A -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (BATTERY - MULTI DISPLAY ASSEMBLY)

(a) Disconnect the M9 multi display assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Text in Illustration

NG -- CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK - MULTI DISPLAY)

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table

3. CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK - MULTI DISPLAY)

(a) Disconnect the M9 multi display assembly connector.

(b) Disconnect the 2F driver side junction block connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DRIVER SIDE JUNCTION BLOCK

4. CHECK IMAGE QUALITY SETTING

(a) Press the "DISP" switch on the remote touch.

(b) Turn the light control switch to the tail position.

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

OK:

"Day Mode" is on.

NG -- CHECK VEHICLE SIGNAL (OPERATION CHECK)

OK -- TURN "Day Mode" SETTING OFF

5. CHECK VEHICLE SIGNAL (OPERATION CHECK)

(a) Display the "Vehicle Signal Check Mode" screen Operation Check.

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

OK:

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

NG -- CHECK HARNESS AND CONNECTOR (BATTERY - DISPLAY AND NAVIGATION MODULE DISPLAY)

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table

6. CHECK HARNESS AND CONNECTOR (BATTERY - DISPLAY AND NAVIGATION MODULE DISPLAY)

(a) Disconnect the D24 display and navigation module display connector.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Text in Illustration

NG -- CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE - DRIVER SIDE JUNCTION BLOCK)

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table

7. CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE - DRIVER SIDE JUNCTION BLOCK)

(a) Disconnect the D24 display and navigation module display connector.

(b) Disconnect the D5 and 2F driver side junction block connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DRIVER SIDE JUNCTION BLOCK