2008 NISSAN TEANA navigation

AV-252
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
COMPOSITE IMAGE SIGNAL CIRCUIT
COMPOSITE IMAGE SIGNAL CIRCUIT
DescriptionINFOID:0000000003765725
AV control unit that inputs the camera image signal and AUX image signal transmits the composite image sig-
nal to the display unit.
Diagnosis ProcedureINFOID:0000000003901196
1.CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and display unit connector.
3. Check continuity between AV control unit harness connector and display unit harness connector.
4. Check continuity between AV control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK COMPOSITE IMAGE SIGNAL (AV CONTROL UNIT TO DISPLAY UNIT)
1. Connect AV control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check signal between AV control unit harness connector using an oscilloscope.
Is inspection result normal?
YES >> Replace display unit.
NO >> Replace AV control unit.
AV control unit Display unit
Continuity
Connector Terminals Connector Terminals
M12936
M4915
Existed
37 5
AV c o n t r o l u n i t
GroundContinuity
Connector Terminal
M129 36 Not existed
(+) (−)
Condition Reference value AV control unit
Ground Connector Terminal
M129 36When AUX or camera image is dis-
played.
SKIB2251J

AV
STEERING ANGLE SENSOR SIGNAL CIRCUIT
AV-253
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
MB A
O
P
STEERING ANGLE SENSOR SIGNAL CIRCUIT
DescriptionINFOID:0000000003765727
 Steering angle sensor signal 1, 2 detects the turning direction and quantity of the steering and transmits it to
the camera control unit.
 Steering angle sensor signal 3 detects the neutral position of the steering and transmits it to the camera con-
trol unit.
 Camera control unit performs the correction of neutral position with sensor signal 1, 2, 3 and vehicle speed
signal.
Diagnosis ProcedureINFOID:0000000003901197
1.CHECK CONTINUITY STEERING ANGLE SENSOR SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect camera control unit connector and steering angle sensor connector.
3. Check continuity between camera control unit harness connector and steering angle sensor harness con-
nector.
4. Check continuity between camera control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK SIGNAL SENSOR SIGNAL
1. Connect camera control unit connector.
2. Turn ignition switch ON.
3. Check voltage between camera control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 3.
NO >> Replace camera control unit.
3.CHECK SIGNAL SENSOR SIGNAL
1. Turn ignition switch OFF.
2. Connect steering angle sensor connector.
Camera control unit Steering angle sensor
Continuity
Connector Terminals Connector Terminals
B25123
M303
Existed 24 6
25 8
Camera control unit
GroundContinuity
Connector Terminals
B25123
Not existed 24
25
(+)
(−)Voltag e
(Approx.) Camera control unit
Connector Terminals
B25123
Ground 5.0 V 24
25

AV-254
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
STEERING ANGLE SENSOR SIGNAL CIRCUIT
3. Turn ignition switch ON.
4. Check signal between camera control unit harness connector and ground.
Is inspection result normal?
YES >> INSPECTION END
NO >> Replace steering angle sensor.
(+)
(−) Condition Reference value Camera control unit
Connector Terminals
B25123, 24 GroundTurn the steering to the right
A: Sensor signal 1
B: Sensor signal 2
Turn the steering to the left
A: Sensor signal 1
B: Sensor signal 2
25 GroundTurn the steering around the
neutral position
A: Sensor signal 3
B: Sensor signal 1
SKIB3827E
SKIB3828E
SKIB3829E

AV
STEERING SWITCH SIGNAL A CIRCUIT
AV-255
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
MB A
O
P
STEERING SWITCH SIGNAL A CIRCUIT
DescriptionINFOID:0000000003765729
Transmits the steering switch signal to AV control unit.
Diagnosis ProcedureINFOID:0000000003765730
1.CHECK STEERING SWITCH SIGNAL A CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and spiral cable connector.
3. Check continuity between AV control unit harness connector and spiral cable harness connector.
4. Check continuity between AV control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK SPIRAL CABLE
Check spiral cable.
Is inspection result normal?
YES >> GO TO 3.
NO >> Replace spiral cable.
3.CHECK AV CONTROL UNIT VOLTAGE
1. Connect AV control unit connector and spiral cable connector.
2. Turn ignition switch ON.
3. Check voltage between AV control unit harness connector.
Is inspection result normal?
YES >> GO TO 4.
NO >> Replace AV control unit.
4.CHECK STEERING SWITCH
1. Turn ignition switch OFF.
2. Check steering switch. Refer to AV-256, "
Component Inspection".
Is inspection result normal?
YES >> INSPECTION END
NO >> Replace steering switch.
AV control unit Spiral cable
Continuity
Connector Terminal Connector Terminal
M127 6 M33 24 Existed
AV control unit
GroundContinuity
Connector Terminal
M127 6 Not existed
(+) (−)
Vo l ta g e
(Approx.) AV control unit AV control unit
Connector Terminal Connector Terminal
M127 6 M127 15 3.3 V

AV-256
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
STEERING SWITCH SIGNAL A CIRCUIT
Component Inspection
INFOID:0000000003765731
Measure the resistance between the steering switch connector ter-
minals 14 to 17 and 15 to 17.
Standard
JSNIA0215GB
Steering switch
ConditionResistance
Ω Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M30314
M303 17MENU DOWN switch
ON315 – 327
MENU UP switch ON 119 – 123
SOURCE switch ON 1
15VOL UP switch ON 119 – 123
VOL DOWN switch ON 1

AV
STEERING SWITCH SIGNAL B CIRCUIT
AV-257
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
MB A
O
P
STEERING SWITCH SIGNAL B CIRCUIT
DescriptionINFOID:0000000003765732
Transmits the steering switch signal to AV control unit.
Diagnosis ProcedureINFOID:0000000003765733
1.CHECK STEERING SWITCH SIGNAL B CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and spiral cable connector.
3. Check continuity between AV control unit harness connector and spiral cable harness connector.
4. Check continuity between AV control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK SPIRAL CABLE
Check spiral cable.
Is inspection result normal?
YES >> GO TO 3.
NO >> Replace spiral cable.
3.CHECK AV CONTROL UNIT VOLTAGE
1. Connect AV control unit connector and spiral cable connector.
2. Turn ignition switch ON.
3. Check voltage between AV control unit harness connector.
Is inspection result normal?
YES >> GO TO 4.
NO >> Replace AV control unit.
4.CHECK STEERING SWITCH
1. Turn ignition switch OFF.
2. Check steering switch. Refer to AV-258, "
Component Inspection".
Is inspection result normal?
YES >> INSPECTION END
NO >> Replace steering switch.
AV control unit Spiral cable
Continuity
Connector Terminal Connector Terminal
M127 16 M33 31 Existed
AV control unit
GroundContinuity
Connector Terminal
M127 16 Not existed
(+) (−)
Vo l ta g e
(Approx.) AV control unit AV control unit
Connector Terminal Connector Terminal
M127 16 M127 15 3.3 V

AV-258
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
STEERING SWITCH SIGNAL B CIRCUIT
Component Inspection
INFOID:0000000003765734
Measure the resistance between the steering switch connector ter-
minals 14 to 17 and 15 to 17.
Standard
JSNIA0215GB
Steering switch
ConditionResistance
Ω Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M30314
M303 17MENU DOWN switch
ON315 – 327
MENU UP switch ON 119 – 123
SOURCE switch ON 1
15VOL UP switch ON 119 – 123
VOL DOWN switch ON 1

AV
STEERING SWITCH SIGNAL GND CIRCUIT
AV-259
< COMPONENT DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
MB A
O
P
STEERING SWITCH SIGNAL GND CIRCUIT
DescriptionINFOID:0000000003765735
Transmits the steering switch signal to AV control unit.
Diagnosis ProcedureINFOID:0000000003765736
1.CHECK STEERING SWITCH SIGNAL GND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and spiral cable connector.
3. Check continuity between AV control unit harness connector and spiral cable harness connector.
4. Connect AV control unit connector.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK SPIRAL CABLE
Check spiral cable.
Is inspection result normal?
YES >> GO TO 3.
NO >> Replace spiral cable.
3.CHECK GROUND CIRCUIT
1. Connect AV control unit connector.
2. Check continuity between AV control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 4.
NO >> Replace AV control unit.
4.CHECK STEERING SWITCH
Check steering switch. Refer to AV-260, "
Component Inspection".
Is inspection result normal?
YES >> INSPECTION END
NO >> Replace steering switch.
AV control unit Spiral cable
Continuity
Connector Terminal Connector Terminal
M127 15 M33 33 Existed
AV control unit
GroundContinuity
Connector Terminal
M127 15 Existed