Nissan Teana J32. Instruction — part 57
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-83
< COMPONENT DIAGNOSIS >
[BASE AUDIO AND DISPLAY SYSTEM]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
2.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect the harness connector between display unit and AV control unit.
3.
Check continuity between display unit harness connector and AV control unit harness connector.
4.
Check continuity between display unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK POWER SUPPLY CIRCUIT (AV CONTROL UNIT SIDE)
1.
Connect the AV control unit harness connector.
2.
Turn ignition switch ACC.
3.
Check voltage between AV control unit harness connector and ground.
Is inspection result normal?
YES
>> INSPECTED END.
NO
>> Replace AV control unit.
4.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector.
3.
Check continuity between display unit harness connector and ground.
Is inspection result normal?
YES
>> INSPECTED END.
NO
>> Repair harness or connector.
MULTIFUNCTION SWITCH
MULTIFUNCTION SWITCH : Diagnosis Procedure
INFOID:0000000003901204
1.
CHECK FUSE
Check for blown fuses.
Is inspection result normal?
Signal name
Display unit
AV control unit
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
Ground
M49
2
M129
59
Existed
3
47
Signal name
Display unit
Ground
Continuity
Connector No.
Terminal No.
Inverter VCC
M49
2
Not existed
Signal VCC
3
Signal name
Connector No.
Terminal No.
Ignition switch position
Voltage (Approx.)
Inverter VCC
M129
59
ACC
9 V
Signal VCC
47
Signal name
Display unit
Ground
Continuity
Connector No.
Terminal No.
Ground
M49
1
Existed
Power source
Fuse No.
Ignition switch ACC or ON
19
AV-84
< COMPONENT DIAGNOSIS >
[BASE AUDIO AND DISPLAY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between multifunction switch harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between multifunction switch and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect multifunction switch connector.
3.
Check continuity between multifunction switch harness connector and ground.
Is inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
CAMERA CONTROL UNIT
CAMERA CONTROL UNIT : Diagnosis Procedure
INFOID:0000000003901205
1.
CHECK FUSE
Check for blown fuses.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUITS
Check voltage between camera control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between camera control unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect camera control unit connector.
3.
Check continuity between camera control unit harness connector and ground.
Is inspection result normal?
Signal name
Connector No.
Terminal No.
Ignition switch position
Voltage (Approx.)
ACC power supply
M125
3
ACC
Battery voltage
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M125
1
OFF
Existed
Power source
Fuse No.
Battery
31
Ignition switch ACC
19
Signal name
Connector No.
Terminal No.
Ignition switch position
Voltage (Approx.)
Battery power supply
B251
32
OFF
Battery voltage
ACC power supply
30
ACC
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
B251
31
OFF
Existed
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-85
< COMPONENT DIAGNOSIS >
[BASE AUDIO AND DISPLAY SYSTEM]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
YES
>> INSPECTION END
NO
>> Repair harness or connector.
AV-86
< COMPONENT DIAGNOSIS >
[BASE AUDIO AND DISPLAY SYSTEM]
RGB (R: RED) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
RGB (R: RED) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
Description
INFOID:0000000003882739
Transmit the image displayed with AV control unit with RGB signal to the display unit.
Diagnosis Procedure
INFOID:0000000003901206
1.
CHECK CONTINUITY RGB (R: RED) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and AV control unit connector.
3.
Check continuity between display unit harness connector and AV control unit harness connector.
4.
Check continuity between display unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK RGB (R: RED) SIGNAL
1.
Connect display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector terminal and ground using an oscilloscope.
Is inspection result normal?
YES
>> Replace display unit.
NO
>> Replace AV control unit.
Display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M49
17
M129
40
Existed
Display unit
Ground
Continuity
Connector
Terminal
M49
17
Not existed
(+)
(
−
)
Condition
Reference value
Display unit
Connector
Terminal
M49
17
Ground
Start Confirmation / Adjustment
mode, and then display color bar
by selecting “Color Spectrum Bar”
on DISPLAY DIAGNOSIS screen.
SKIB2238J
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