Toyota Sequoia (2005). Manual - part 565

–

DIAGNOSTICS

REAR SEAT AUDIO SYSTEM

DI–2055

2249

OLD

Old version

Old DTC application is identified and DTC is detected in ei-

ther ”System Check Mode” or ”Diagnosis Memory Mode”.

–

NRES

No response

The device gives no response to any one of ”System Check

Mode ON Request”, ”System Check Result Request” and

”Diagnosis Memory Request”.

Check the power source cir-

cuit and the communication

circuit of the device indi-

cated by the device code

(physical code).

(3)

To perform the Service Check again, press the pre-
set switch ”1”.

(f)

detailed information Mode (when displaying the troubled
device’s DTC)
(1)

With ”CHEC” or ”ECHN” displayed, press the preset
switch ”2” to go to the detailed information mode.

(2)

Press the ”TUNE/TRACK” switch to display ”Sys-
tem Check Result (SYS)” and ”Diagnosis Memory
Response (CODE)”.

I28310

Service Check Mode

Detailed Information Mode

DISC/CH/PROG DOWN

Detailed information
of the first code
is displayed

Detailed information
of the second code
is displayed

Continue to display detailed information
when more than one DTC is detected.

The illustration shows the case that the component with code 190 has DTC ”47”  and ”dC” as a result of the
system check and the diagnosis memory response.
The detailed information mode shows the system check result first, then the diagnosis memory response result.
(*1): As for DTC that does not have any sub code, sub code is not displayed.

P–––indicates physical address
190–––physical address

SYS–––system check result

P–––indicates physical address
360–––sub code

6F–––connection
           check number

1–––the first code
62–––logical address

DC–––DTC

CODE–––diagnosis memory
               response result

2–––the second code

01–––logical address

05–––the number of times of
       occurrence
         (in decimal)

47–––DTC

Continue to display detailed information
when more than one DTC is detected.



To

(*1)

: TUNE/TRACK UP

: TUNE/TRACK DOWN

DISC/CH/PROG UP

 

From

 

DI–2056

–

DIAGNOSTICS

REAR SEAT AUDIO SYSTEM

2250

–

DIAGNOSTICS

REAR SEAT AUDIO SYSTEM

DI–2057

2251

(3)

Displayed Items in Detailed Information Mode

Division Code for

DTC display

Meaning

Order of detaileded information displayed when the ”TUNE

UP” switch is pressed. (The order is reversed when the

”TUNE DOWN” switch is pressed.)

SYS

System check result is displayed.

Logical address 

→

DTC

CODE

Diagnosis memory check result is displayed.

Logical address

→

DTC

→

Sub code

→

Connection confirmation number

→

The number of times of occurrence

(4)

Check the trouble area referring to the DTC list.

(5)

To return to the service check mode, press the pre-
set switch ”3”.

(g)

Clearing Individual DTC Memory (See page 

DI–1974

, 

DI–2199

).

(h)

Clearance of All DTC Memory (See page 

DI–1974

, 

DI–2199

).

DIDAM–01

I28496

B–O

24

R24
Rear Seat Audio
Controller Assy

ACC

+B

17 GND

12

28

C

4

3

A36
ACC Cut
Relay

B

12

1

Sub J/B No.3

3A

ID2

W–R

J/C

L–Y

1

2

IA1

26

L–R

L–R

2B

3

2C

8

2D

Engine Room J/B

ECU–B

Short Pin

1

Instrument Panel J/B

W–R

AM1

1

3

2

RAD No.2

W

1

P

6

ALT

1

B

Battery

LG

To ECM

GR

RSE

2

2

1

Engine Room R/B No.2

J37

ID2

21

IM

LG

3A

LG

12

ID2

J38

L–R

2

12

W–L

RAD No.1

W–R

W–L

1

2

B

3

AM1

B

ACC

I18
Ignition SW

1C

1C

1E

1F

1J

1L

GR

P

W–R

GR

W–B

5

8

4

F10 
Fusible Link Block

DI–2058

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DIAGNOSTICS

REAR SEAT AUDIO SYSTEM

2252

CIRCUIT INSPECTION

Power source circuit (Rear seat audio controller)

CIRCUIT DESCRIPTION

This circuit provides the power to the rear seat audio controller.

WIRING DIAGRAM