2008 NISSAN TEANA fuses

AV
POWER SUPPLY AND GROUND CIRCUIT
AV-19
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
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COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
AUDIO UNIT
AUDIO UNIT : Diagnosis ProcedureINFOID:0000000003765593
1.CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Be sure to eliminate the cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between audio unit harness connectors and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Check harness between audio unit and fuse.
Power source Fuse No.
Battery 31
Ignition switch ACC or ON 19
Signal name Connector No. Terminal No. Ignition switch position Value (Approx.)
Battery power supply
M4619 OFF
Battery voltage
ACC power supply 7 ACC

AV
NORMAL OPERATING CONDITION
AV-35
< SYMPTOM DIAGNOSIS >[AUDIO SYSTEM]
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NORMAL OPERATING CONDITION
DescriptionINFOID:0000000003765606
NOTE:
 Audio operation information, refer to Owner's Manual.
 The majority of the audio concerns are the result of outside causes (bad CD, electromagnetic interference,
etc.).
NOISE
The following noise results from variations in field strength, such as fading noise and multi-path noise, or
external noise from trains and other sources. It is not a malfunction.
 Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.
 Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the
antenna at a different time from the waves that reflect off mountains or buildings.
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and then determine the cause.
NOTE:
The source of the noise can be easily found by listening to the noise while removing the fuses of electrical
components, one by one.
Types of Noise and Possible Causes
Occurrence condition Possible cause
Occurs only when engine is ON.A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed. Ignition components
The occurrence of the noise is linked with the operation of the fuel pump.  Fuel pump condenser
Noise only occurs when various
electrical components are oper-
ating.A cracking or snapping sound occurs with the op-
eration of various switches. Relay malfunction, audio unit malfunction
The noise occurs when various motors are operat-
ing. Motor case ground
Motor
The noise occurs constantly, not just under certain conditions. Rear defogger coil malfunction
 Open circuit in printed heater
 Poor ground of antenna feeder line
A cracking or snapping sound occurs while the vehicle is being driven, especially when
it is vibrating excessively. Ground wire of body parts
 Ground due to improper part installation
 Wiring connections or a short circuit

AV-82
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis ProcedureINFOID:0000000003901202
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 CIRCUIT
Check voltage between AV control unit harness connectors and ground.
Is inspection result normal?
YES >> GO TO 3.
NO >> Check harness between AV control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connectors.
3. Check continuity between AV control unit harness connectors and ground.
Is inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
DISPLAY UNIT
DISPLAY UNIT : Diagnosis ProcedureINFOID:0000000003901446
1.CHECK POWER SUPPLY CIRCUIT (DISPLAY SIDE)
Check voltage between display unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
Power source Fuse No.
Battery 31
Ignition switch ACC or ON 19
Ignition switch ON or START 4
Signal name Connector No. Terminal No. Ignition switch position Voltage (Approx.)
Battery power supply
M12719 OFF
Battery voltage ACC power supply 7 ACC
Ignition signal M131 104 ON
Signal name Connector No. Terminal No. Ignition switch position Continuity
GroundM127 20
OFF Existed
M131 85
Signal name Connector No. Terminal No. Ignition switch position Voltage (Approx.)
Inverter VCC
M492
ACC 9 V
Signal VCC 3

AV
POWER SUPPLY AND GROUND CIRCUIT
AV-83
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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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 ProcedureINFOID:0000000003901204
1.CHECK FUSE
Check for blown fuses.
Is inspection result normal?
Signal nameDisplay unit AV control unit
Continuity
Connector No. Terminal No. Connector No. Terminal No.
Ground M492
M12959
Existed
347
Signal nameDisplay unit
GroundContinuity
Connector No. Terminal No.
Inverter VCC
M492
Not existed
Signal VCC 3
Signal name Connector No. Terminal No. Ignition switch position Voltage (Approx.)
Inverter VCC
M12959
ACC 9 V
Signal VCC 47
Signal nameDisplay unit
GroundContinuity
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 ProcedureINFOID: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
B25132 OFF
Battery voltage
ACC power supply 30 ACC
Signal name Connector No. Terminal No. Ignition switch position Continuity
Ground B251 31 OFF Existed

AV-236
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis ProcedureINFOID:0000000003901178
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 CIRCUIT
Check voltage between AV control unit harness connectors and ground.
Is inspection result normal?
YES >> GO TO 3.
NO >> Check harness between AV control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connectors.
3. Check continuity between AV control unit harness connectors and ground.
Is inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
DISPLAY UNIT
DISPLAY UNIT : Diagnosis ProcedureINFOID:0000000003901179
1.CHECK POWER SUPPLY CIRCUIT (DISPLAY SIDE)
Check voltage between display unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
Power source Fuse No.
Battery 31
Ignition switch ACC or ON 19
Ignition switch ON or START 4
Signal name Connector No. Terminal No. Ignition switch position Voltage (Approx.)
Battery power supply
M12719 OFF
Battery voltage ACC power supply 7 ACC
Ignition signal M131 104 ON
Signal name Connector No. Terminal No. Ignition switch position Continuity
GroundM127 20
OFF Existed
M131 85
Signal name Connector No. Terminal No. Ignition switch position Voltage (Approx.)
Inverter VCC
M492
ACC 9 V
Signal VCC 3

AV
POWER SUPPLY AND GROUND CIRCUIT
AV-237
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
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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 ProcedureINFOID:0000000003901181
1.CHECK FUSE
Check for blown fuses.
Is inspection result normal?
Signal nameDisplay unit AV control unit
Continuity
Connector No. Terminal No. Connector No. Terminal No.
Ground M492
M12959
Existed
347
Signal nameDisplay unit
GroundContinuity
Connector No. Terminal No.
Inverter VCC
M492
Not existed
Signal VCC 3
Signal name Connector No. Terminal No. Ignition switch position Voltage (Approx.)
Inverter VCC
M12959
ACC 9 V
Signal VCC 47
Signal nameDisplay unit
GroundContinuity
Connector No. Terminal No.
Ground M49 1 Existed
Power source Fuse No.
Ignition switch ACC or ON 19

AV-238
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
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.
BOSE AMP.
BOSE AMP. : Diagnosis ProcedureINFOID:0000000003901182
1.CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check harness between BOSE amp. and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BOSE amp. connector.
3. Check continuity between BOSE amp. harness connector and ground.
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 32, 33
Ignition switch ACC 19
Signal name Connector No. Terminal No. Ignition switch position Voltage (Approx.)
Battery power supply B22410
OFF
Battery voltage 11
ACC power supply B225 20 ACC