Problem Symptoms Table

WARNING: This page is about a different car, the 2004 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

PROBLEM SYMPTOMS TABLE

Flow chart No.	Symptom
1	EVEN WHEN PRESSING "PWR/VOL" SWITCH OR ANY AUDIO SWITCH, THE SCREEN REMAINS BLACK
2	PANEL SWITCH DOES NOT FUNCTION
3	ALTHOUGH "PWR/VOL" SWITCH IS PRESSED, NO SOUND IS HEARD (DISPLAY AND SWITCH OPERATION IS NORMAL)
4	NO NAVIGATION SCREEN DISPLAYED WHEN "MAP/VOICE", "NAVI" OR "DEST" SWITCH PRESSED (SCREEN CANNOT BE SWITCHED)
5	NAVIGATION SCREEN IS NOT STABILIZED (SYNCHRONOUS ERROR)
6	COLOR ON NAVIGATION SCREENS IS UNUSUAL (RGB SIGNAL ERROR)
7	FRONT SPEAKER (DRIVER SIDE) ONLY IS NOT HEARD (RADIO, CASSETTE TAPE, CD)
8	MAP DVD CANNOT BE EJECTED OR PLAYED
9	MAP SCREEN DISPLAYED DOES NOT APPEAR (DISC CAUTION SCREEN DOES NOT CHANGE)
10	MAP IS DISPLAYED IN WHITE OR BLUE SCREEN (SWITCHED AND VEHICLE POSITION MARK ARE DISPLAYED)
11	SCREEN CANNOT BE DIMMED WHEN LIGHT CONTROL SWITCH IS TURNED TO "TAIL" POSITION
12	TOUCH SWITCH DOES NOT FUNCTION (NAVIGATION SCREEN ONLY)
13	VEHICLE POSITION IS BADLY DEVIATED FROM CORRECT POINT
14	GPS MARK DOES NOT APPEAR
15	NO VOICE NAVIGATION
16	VEHICLE POSITION MARK ROTATES WITHOUT CONTROL (MAP ROTATES WITHOUT CONTROL)
17	DRIVING DIRECTIONS OPPOSITE TO MOVING DIRECTION OF VEHICLE POSITION MARK
18	CD CANNOT BE INSERTED/IS EJECTED RIGHT AFTER INSERTION/CANNOT BE PLAYED
19	CD CANNOT BE EJECTED
20	CASSETTE TAPE CANNOT BE INSERTED OR PLAYED
21	CASSETTE TAPE CANNOT BE EJECTED
22	CD SOUND SKIPS
23	NOISE OCCURS
24	RADIO BROADCAST CANNOT BE RECEIVED (BAD RECEPTION)
25	REAR SEAT ENTERTAINMENT SYSTEM DOES NOT RESPOND TO ANY REMOTE CONTROL OPERATIONS
26	QUALITY OF SOUND FROM WIRELESS HEADPHONE IS POOR OR NO SOUND CAN BE HEARD

EXAMPLES OF MISUNDERSTANDING SYMPTOMS AS MALFUNCTIONS

Condition	Cause	Procedure to recover
Screen displays AUDIO OFF, even when PWR/VOL switch is turned off.	"PWR/VOL" switch turns the audio off, but not the screen. To turn off the screen, "SCREEN OFF" switch must be pressed.	Press DISPLAY switch => Press SCREEN OFF switch on screen
The screen is too dark or too bright, when the screen is changed between navigation and audio	The contrast set up of the screen between navigation is different. The contrast needs to be set up for each of the navigation and audio screen.	'Navigation: Press "DISPLAY" and adjust by "BRIGHTNESS" switch. 'AUDIO: Press "DISPLAY" and adjust by "CONTRAST" switch.
Present position is not displayed even when "NAVI" switch is pressed.	Pressing "NAVI" switch displays the previous screen. For present position, "MAP/VOICE" switch must be pressed.	Press "NAVI" switch --> Press "MAP/VOICE" switch.
Even when pressing the panel switch, it doesn't function	Since this switch is pressure sensitive type, press the switch securely. The panel switch toned down does not work even if is pressed.	Press the panel switch securely, if the pressure is weak or time is insufficient, the switch does not function.