Toyota Sequoia (2005). Manual - part 583

I28597

IF3

R–L+

R–R–

R–R+

R–L–

W

(Shielded)

Multi–display 
Controller Sub–assy

R23

26

R23

25

R23

24

R23

23

R23

27

W

W

W

IF3

IF3

IF3

IF3

(Shielded)

RSL+

RSR–

RSR+

RSL–

R19

15

R19

16

R19

17

R19

18

R19

14

SLD1

SG2

Radio Receiver Assy

W

G

B

R

18

19

20

21

17

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

DI–2127

2321

Sound signal circuit (From radio receiver assy to multi–display
sub–assy)

CIRCUIT DESCRIPTION

This is the sound signal circuit from the radio receiver assy to the multi–display controller sub–assy.

WIRING DIAGRAM

DIDBD–01

I28618

Multi–display Controller Sub–assy:

R–L–

R–L+

R–R–

R–R+

Radio Receiver Assy:

SG2

RSR+ RSL+

RSR–

RSL–

SLD1

R19

R23

DI–2128

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

2322

INSPECTION PROCEDURE

1

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

PREPARATION:
Disconnect the R23 and R19 connectors.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Symbol (Tester connection)

Condition

Specified condition

RSR+ (R19–15) – 

R–R+ (R23–26)

Always

Below 1 

Ω

RSR– (R19–16) – 

R–R– (R23–25)

Always

Below 1 

Ω

RSL+ (R19–17) – 

R–L+ (R23–24)

Always

Below 1 

Ω

RSL– (R19–18) – 

R–L– (R23–23)

Always

Below 1 

Ω

SLD1 (R19–14) – SG2 (R23–27)

Always

Below 1 

Ω

RSR+ (R19–15) – Body ground

Always

10 k

Ω 

or higher

RSR– (R19–16) – Body ground

Always

10 k

Ω 

or higher

RSL+ (R19–17) – Body ground

Always

10 k

Ω 

or higher

RSL– (R19–18) – Body ground

Always

10 k

Ω 

or higher

SLD1 (R19–14) – 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

).

I28597

IF3

R–L+

R–R–

R–R+

R–L–

W

(Shielded)

Multi–display 
Controller Sub–assy

R23

26

R23

25

R23

24

R23

23

R23

27

W

W

W

IF3

IF3

IF3

IF3

(Shielded)

R–L+

R–R–

R–R+

R–L–

R27

15

R27

16

R27

17

R27

18

R27

14

RSLD

SG2

Radio and Navigation Assy

W

G

B

R

18

19

20

21

17

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

DI–2129

2323

Sound signal circuit (From radio and navigation assy to multi–
display sub–assy)

CIRCUIT DESCRIPTION

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

WIRING DIAGRAM

DIDBE–01

I28750

Radio and Navigation Assy:

R27

RSLD

R–R+

R–R–

R–L+

R–L–

I28614

SG2

R23

Multi–display Controller Sub–assy:

R–R+

R–R–

R–L+

R–L–

DI–2130

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

2324

INSPECTION PROCEDURE

1

Check harness and connector (Radio and navigation assy – Multi–display con-
troller sub–assy).

PREPARATION:
Disconnect the R23 and R27 connectors.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Symbol (Tester connection)

Condition

Specified condition

R–R+ (R27–15) – R–R+ (R23–26)

Always

Below 1 

Ω

R–R– (R27–16) – R–R– (R23–25)

Always

Below 1 

Ω

R–L+ (R27–17) – R–L+ (R23–24)

Always

Below 1 

Ω

R–L– (R27–18) – R–L– (R23–23)

Always

Below 1 

Ω

RSLD (R27–14) – SG2 (R23–27)

Always

Below 1 

Ω

R–R+ (R27–15) – Body ground

Always

10 k

Ω 

or higher

R–R– (R27–16) – Body ground

Always

10 k

Ω 

or higher

R–L+ (R27–17) – Body ground

Always

10 k

Ω 

or higher

R–L– (R27–18) – Body ground

Always

10 k

Ω 

or higher

RSLD (R27–14) – 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

).