Toyota Sequoia (2005). Manual - part 581

I28667

Multi–display 
Controller Sub–assy

NTS1

SGN1

SG3

R23

21

R23

20

R23

19

R

G

(Shielded)

Radio and Navigation Assy

BR

BR

(Shielded)

R26

1

R26

4

R26

5

NTSC

SGD1

SGND

IF3

22

IF3

23

IF3

24

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

DI–2119

2313

Display signal circuit (Multi–display sub–assy – Radio and navi-
gation assy)

CIRCUIT DESCRIPTION

This is the display signal circuit from the multi–display controller sub–assy to the radio and navigation assy.

WIRING DIAGRAM

DIDB9–01

I28751

NTSC

R26

Radio and Navigation Assy:

SGND

SGD1

I28614

NTS1

R23

Multi–display Controller Sub–assy:

SGN1

SG3

DI–2120

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

2314

INSPECTION PROCEDURE

1

Check harness and connector (Multi–display controller sub–assy – Radio and
navigation assy).

PREPARATION:
Disconnect the R26 and R23 connectors.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Symbol (Tester connection)

Condition

Specified condition

NTS1 (R23–21) – NTSC (R26–1)

Always

Below 1 

Ω

SGN1 (R23–20) – SGD1 (R26–4)

Always

Below 1 

Ω

SG3 (R23–19) – SGND (R26–5)

Always

Below 1 

Ω

NTS1 (R23–21) – Body ground

Always

10 k

Ω 

or higher

SGN1 (R23–20) – Body ground

Always

10 k

Ω 

or higher

SG3 (R23–19) – Body ground

Always

10 k

Ω 

or higher

NG

Repair or replace harness or connector.

OK

Proceed to next circuit inspection shown in problem symptoms table (See page 

DI–2087

).

I28666

Multi–display 
Controller Sub–assy

NTS4

SGN5

SG6

R21

24

R21

23

R21

22

BR

BR

NTS4

DGND

SGN5

5

6

7

(Shielded)

V10
VTR Terminal

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

DI–2121

2315

Display signal circuit (Multi–display controller sub–assy – VTR
terminal)

CIRCUIT DESCRIPTION

This is the display signal circuit from the multi–display controller sub–assy to the VTR terminal.

WIRING DIAGRAM

DIDBA–01

I28321

I28327

VTR Terminal:

Multi–display Controller Sub–assy:

NTS4

SGN5

SG6

SGN5

DGND

NTS4

V10

R21

DI–2122

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

2316

INSPECTION PROCEDURE

1

Check harness and connector (Multi–display controller sub–assy – VTR termi-
nal).

PREPARATION:
Disconnect the V10 and R21 connectors.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Symbol (Tester connection)

Condition

Specified condition

NTS4 (V10–5) – NTS4 (R21–24)

Always

Below 1 

Ω

DGND (V10–6) – SGN5 (R21–23)

Always

Below 1 

Ω

SGN5 (V10–7) – SG6 (R21–22)

Always

Below 1 

Ω

NTS4 (V10–5) – Body ground

Always

10 k

Ω 

or higher

DGND (V10–6) – Body ground

Always

10 k

Ω 

or higher

SGN5 (V10–7) – Body ground

Always

10 k

Ω 

or higher

NG

Repair or replace harness or connector.

OK

Proceed to next circuit inspection shown in problem symptoms table (See page 

DI–2087

).