Toyota Sequoia (2005). Manual - part 579

I28614

+B1

ACC

GND

R23

Multi–display Controller Sub–assy:

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

DI–2111

2305

INSPECTION PROCEDURE

1

Inspect multi–display controller sub–assy (+B1, ACC, GND).

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

Symbol (Tester connection)

Condition

Specified condition

GND (R23–29) – Body ground

Always

Below 1 

Ω

CHECK:
Measure the voltage according to the value(s) in the table be-
low.
OK:

Symbol (Tester connection)

Condition

Specified condition

+B1 (R23–16) – GND (R23–29)

Always

10 to 14 V

ACC (R23–32) – GND (R23–29)

Ignition SW ACC

10 to 14 V

NG

Repair or replace harness or connector.

OK

2

Check problem symptoms table.

CHECK:
Check the problem symptoms table.
RESULT:

All possible suspected areas have been inspected

Go to step A

Possible suspected areas still exist

Go to step B

B

Proceed to next circuit inspection shown in
problem symptoms table or diagnostic trouble
code chart (See page 

DI–2087

 or 

DI–2103

).

A

Replace multi–display controller sub–assy.

I28487

Multi–display
Controller Sub–assy

D23 
Disc Player Controller

ACC

GND

12

11

15

+B

ACC3

GND4

+B

R22

R22

R22

LG

LG

LG

19

20

16

DI–2112

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

2306

Power source circuit (Disc player controller)

CIRCUIT DESCRIPTION

This circuit provides power to the disc player controller. The power is sent from the battery to the disc player
controller through the multi–display controller sub–assy.

WIRING DIAGRAM

DIDB6–01

I28664

+B

ACC

GND

Disc Player Controller:

D23

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

DI–2113

2307

INSPECTION PROCEDURE

1

Inspect disc player controller (+B, ACC, GND).

PREPARATION:
Disconnect the D23 connector.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Symbol (Tester connection)

Condition

Specified condition

GND (D23–16) – Body ground

Always

Below 1 

Ω

CHECK:
Measure the voltage according to the value(s) in the table be-
low.
OK:

Symbol (Tester connection)

Condition

Specified condition

+B (D23–20)  – GND (D23–16)

Always

10 to 14 V

ACC (D23–19) – GND (D23–16)

Ignition SW ACC

10 to 14 V

NG

Go to step 3.

OK

2

Check problem symptoms table.

CHECK:
Check the problem symptoms table.
RESULT:

All possible suspected areas have been inspected

Go to step A

Possible suspected areas still exist

Go to step B

B

Proceed to next circuit inspection shown in
problem symptoms table or diagnostic trouble
code chart (See page 

DI–2087

 or 

DI–2103

).

A

Replace disc player controller.

I28330

Disc Player Controller:

Multi–display Controller Sub–assy:

+B

ACC3

GND4

D23

R22

+B

ACC

GND

DI–2114

–

DIAGNOSTICS

REAR SEAT ENTERTAINMANT SYSTEM

2308

3

Check harness and connector (Multi–display controller sub–assy – Disc player
controller).

PREPARATION:
Disconnect the R22 and D23 connectors.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Symbol (Tester connection)

Condition

Specified condition

ACC (D23–19) – ACC3 (R22–12)

Always

Below 1 

Ω

+B (D23–20) – +B (R22–11)

Always

Below 1 

Ω

GND (D23–16) – GND4 (R22–15)

Always

Below 1 

Ω

ACC (D23–19) – Body ground

Always

10 k

Ω 

or higher

+B (D23–20) – Body ground

Always

10 k

Ω 

or higher

GND (D23–16) – Body ground

Always

10 k

Ω 

or higher

NG

Repair or replace harness or connector.

OK

Replace multi–display controller sub–assy.