Toyota Sequoia (2005). Manual - part 573

DIDAZ–01

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

DI–2087

2281

PROBLEM SYMPTOMS TABLE

TELEVISION DISPLAY ASSY

Symptom

Suspect Area

See page

Black screen.

1. Power source circuit (multi–display controller sub–assy)

2. Power source circuit (television display assy)

3. AVC–LAN circuit

DI–2110
DI–2107
DI–2139

Display screen not stabilized (Synchronous error).

1. Power source circuit (television display assy)

2. Power source circuit (multi–display controller sub–assy)

3. Display signal circuit (multi–display controller sub–assy

– television display assy)

4. Television display assy

5. Multi–display controller sub–assy

DI–2107
DI–2110

DI–2115

–
–

Color on display screen is unusual (RGB signal error).

1. Rear display color bar check of display check mode

2. Display signal circuit (multi–display controller sub–assy

– television display assy)

3. Television display assy

4. Multi–display controller sub–assy

DI–2085

DI–2115

–
–

DISC PLAYER CONTROLLER

Symptom

Suspect Area

See page

Only DVD screen is not displayed or not stabilized.

1. Power source circuit (multi–display controller sub–assy)

2. Power source circuit (disc player controller)

3. Display signal circuit (multi–display controller sub–assy

– disc player controller)

4. Display signal circuit (multi–display controller sub–assy

– radio and navigation assy)

5. Disc player controller

6. Multi–display controller sub–assy

DI–2110
DI–2112

DI–2117

DI–2119

–
–

Only DVD is not heard or the sound quality is poor.

1. Power source circuit (multi–display controller sub–assy)

2. Power source circuit (disc player controller)

3. Sound signal circuit (multi–display controller sub–assy –

disc player controller)

4. w/o Navigation system:

Sound signal circuit (multi–display controller sub–assy –

radio receiver assy)

w/ Navigation:

Sound signal circuit (multi–display controller sub–assy –

radio and navigation assy)

5. Mute signal circuit

6. Multi–display controller sub–assy

7. Disc player controller

DI–2110
DI–2112

DI–2137

DI–2123

DI–2125

DI–2153

–
–

VTR TERMINAL

Symptom

Suspect Area

See page

Only display screen input from the external device is not stabi-

lized.

1. Power source circuit (multi–display controller sub–assy)

2. Power source circuit (television display assy)

3. Display signal circuit (multi–display controller sub–assy

– television display assy)

4. VTR terminal

5. Multi–display controller sub–assy

DI–2110
DI–2107

DI–2115

–
–

DI–2088

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

2282

Only sound quality input from the external device is poor or no

sound can be heard.

1. Power source circuit (multi–display controller sub–assy)

2. Power source circuit (television display assy)

3. Sound signal circuit (multi–display controller sub–assy –

VTR terminal)

4. VTR terminal

5. Multi–display controller sub–assy

DI–2110
DI–2107

DI–2131

–
–

The operation the external device cannot be performed

1. Power source circuit (multi–display controller sub–assy)

2. Power source circuit (television display assy)

3. VTR terminal set signal circuit

4. VTR terminal

5. Multi–display controller sub–assy

DI–2110
DI–2107
DI–2155

–
–

RSE SYSTEM

Symptom

Suspect Area

See page

Quality of sound from wireless headphone is poor or no sound

can be heard (all sound).

1. Power source circuit (multi–display controller sub–assy)

2. Power source circuit (television display assy)

3. Sound signal circuit (multi–display controller sub–assy –

television display assy)

4. Mute signal circuit (radio receiver assy – multi–display

controller sub–assy)

5. Mute signal circuit (disc player controller – multi–display

controller sub–assy)

6. Multi–display controller sub–assy

7. Television display assy

DI–2110
DI–2107

DI–2135

DI–2147

DI–2153

–
–

Quality of sound from headphone connected to headphone termi-

nal is poor or no sound can be heard (all sound).

1. Power source circuit (multi–display controller sub–assy)

2. Power source circuit (television display assy)

3. Sound signal circuit (multi–display controller sub–assy –

headphone terminal)

4. Mute signal circuit

5. Multi–display controller sub–assy

6. Television display assy

DI–2110
DI–2107

DI–2133
DI–2147

–
–

Quality of sound from wireless headphone is poor or no sound

can be heard (DVD sound only).

1. Power source circuit (disc player controller)

2. Sound signal circuit (multi–display controller sub–assy –

disc player controller)

3. Disc player controller

4. Multi–display controller sub–assy

DI–2112

DI–2137

–
–

Quality of sound from headphone connected is poor or no sound

can be heard (DVD sound only).

1. Power source circuit (disc player controller)

2. Sound signal circuit (multi–display controller sub–assy –

disc player controller)

3. Disc player controller

4. Multi–display controller sub–assy

DI–2112

DI–2137

–
–

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

DI–2089

2283

Quality of sound from wireless headphone is poor or no sound

can be heard (radio sound only).

1. w/o Navigation System:

Sound signal circuit (multi–display controller sub–assy –

radio receiver assy)

w/ Navigation System:

Sound signal circuit (multi–display controller sub–assy –

radio and navigation assy)

2. Multi–display controller sub–assy

3. w/o Navigation System:

Radio receiver assy

4. w/ Navigation System:

Radio and navigation assy

DI–2123

DI–2125

–

–

–

Quality of sound from headphone connected is poor or no sound

can be heard (radio sound only).

1. w/o Navigation System:

Sound signal circuit (multi–display controller sub–assy –

radio receiver assy)

w/ Navigation System:

Sound signal circuit (multi–display controller sub–assy –

radio and navigation assy)

2. Multi–display controller sub–assy

3. w/o Navigation System:

Radio receiver assy

4. w/ Navigation System:

Radio and navigation assy

DI–2123

DI–2125

–

–

–

REMOTE CONTROL

Symptom

Suspect Area

See page

A remote control system does not operate.

1. A remote control system does not operate

2. Remote commander check of display check mode

3. Power source circuit (multi–display controller sub–assy)

4. Power source circuit (television display assy)

5. AVC–LAN circuit

DI–2157
DI–2085
DI–2110
DI–2107
DI–2139

DIDB0–01

I28662

R23

R22

R21

DI–2090

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

2284

TERMINALS OF ECU

1.

MULTI–DISPLAY CONTROLLER SUB–ASSY

Symbols (Terminals No.)

Wiring Color

Terminal Description

Condition

Specification

L– – GND

(R23–7 – R23–29)

W – Y

Sound signal (Output)

DVD system is playing

A waveform

synchronized

with sound is

output

L+ –  GND

(R23–8 – R23–29)

W – Y

Sound signal (Output)

DVD system is playing

A waveform

synchronized

with sound is

output

R– – GND

(R23–9 – R23–29)

W – Y

Sound signal (Output)

DVD system is playing

A waveform

synchronized

with sound is

output

R+ – GND

(R23–10 – R23–29)

W – Y

Sound signal (Output)

DVD system is playing

A waveform

synchronized

with sound is

output

SG1 – Body ground

(R23–11 – Body ground)

Shielded – Body ground

Ground

Always

Below 1 V

LMUT – GND

(R23–12 – R23–29)

LG – Y

Mute signal

Disc player controller is sounding

→

 changing mode

Above 3.5 V 

→

Below 1 V

+B1 – GND

(R23–16 – R23–29)

Y – Y

Battery

Always

10 to 14 V

(*1) SG3 – Body ground

(R23–19 – Body ground)

Shielded – Body ground

Ground

Always

Below 1 V

(*1) SGN1 – Body ground

(R23–20 – Body ground)

BR – Body ground

Ground

Always

Below 1 V

(*1) NTS1 – GND

(R23–21 – R23–29)

BR – Y

Display signal

DVD system is displayed

Pulse genera-

tion