Toyota Sequoia (2005). Manual — part 587
I28750
Radio and Navigation Assy:
TX–
TX+
R27
I28614
TX+
Multi–display Controller Sub–assy:
R23
TX–
–
DIAGNOSTICS
REAR SEAT ENTERTAINMANT SYSTEM
DI–2143
2337
5
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
TX+ (R27–9) – TX+ (R23–31)
Always
Below 1
Ω
TX– (R27–10) – TX– (R23–30)
Always
Below 1
Ω
TX+ (R27–9) – Body ground
Always
10 k
Ω
or higher
TX– (R27–10) – Body ground
Always
10 k
Ω
or higher
NG
Repair or replace harness or connector.
OK
Replace multi–display controller sub–assy.
6
Service check mode (Multi–display controller sub–assy).
CHECK:
Perform the service check (See page
).
Start the diagnosis system and read the check result for the radio and navigation assy.
RESULT:
”NCON” is displayed or result is not displayed (RSE ECU)
Go to step A
”GOOD” is displayed
Go to step B
HINT:
This system has 2 kinds of AVC–LAN: main AVC–LAN and sub AVC–LAN. The television display is
connected for the sub AVC–LAN.
Perform the communication check for the diagnosis system (See page
B
Replace radio receiver assy.
A
I28618
Radio Receiver Assy:
TX+
TX–
Multi–display Controller Sub–assy:
TX1–
TX1+
R23
R19
DI–2144
–
DIAGNOSTICS
REAR SEAT ENTERTAINMANT SYSTEM
2338
7
Check harness and connector (Radio receiver assy – Multi–display controller
sub–assy).
PREPARATION:
Disconnect the R19 and R23 connectors.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Symbol (Tester connection)
Condition
Specified condition
TX1+ (R19–9) – TX+ (R23–31)
Always
Below 1
Ω
TX1– (R19–10) – TX– (R23–30)
Always
Below 1
Ω
TX1+ (R19–9) – Body ground
Always
10 k
Ω
or higher
TX1– (R19–10) – Body ground
Always
10 k
Ω
or higher
NG
Repair or replace harness or connector.
OK
Replace radio receiver assy.
I28617
Disc Player Controller:
Multi–display Controller Sub–assy:
TX–
TX+
TX3–
TX3+
D23
R22
–
DIAGNOSTICS
REAR SEAT ENTERTAINMANT SYSTEM
DI–2145
2339
8
Service check mode (Disc player controller).
CHECK:
Perform the service check (See page
).
Start the diagnosis system and read the check result for the disc player controller.
RESULT:
”NCON” is displayed or result is not displayed (DVD–P)
Go to step A
”GOOD” is displayed
Go to step B
HINT:
This system has 2 kinds of AVC–LAN: main AVC–LAN and sub AVC–LAN. The television display is
connected for the sub AVC–LAN.
Perform the communication check for the diagnosis system (See page
B
Replace multi–display controller sub–assy.
A
9
Check harness and connector (Disc player controller – Multi–display controller
sub–assy).
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
TX+ (D23–17) – TX3+ (R22–14)
Always
Below 1
Ω
TX– (D23–18) – TX3– (R22–13)
Always
Below 1
Ω
TX+ (D23–17)– Body ground
Always
10 k
Ω
or higher
TX– (D23–18) – Body ground
Always
10 k
Ω
or higher
NG
Repair or replace harness or connector.
OK
DI–2146
–
DIAGNOSTICS
REAR SEAT ENTERTAINMANT SYSTEM
2340
Replace disc player controller.
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