Nissan Maxima. Manual — part 150
AV-420
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/ BOSE]
SUBWOOFER
1. Connect AV control unit connector M157 and BOSE speaker
amp. connector B109.
2. Turn ignition switch to ACC.
3. Push POWER switch.
4. Check the signal between AV control unit harness connector ter-
minals with CONSULT or oscilloscope.
Is the audio signal voltage as specified?
YES
>> Replace BOSE speaker amp. Refer to
.
NO
>> Replace AV control unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M157
112
118
Receive
audio sig-
nal
108
114
ALNIA1176ZZ
SKIA0177E
AV
AMP ON SIGNAL CIRCUIT
AV-421
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/ BOSE]
C
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AMP ON SIGNAL CIRCUIT
Description
INFOID:0000000009471374
When the audio system is turned on, a voltage signal is supplied from the AV control unit to the BOSE speaker
amp. When this signal is received, the BOSE speaker amp. will turn on.
Diagnosis Procedure
INFOID:0000000009471375
Regarding Wiring Diagram information, refer to
AV-449, "Wiring Diagram - With BOSE Audio system Without
1.
CHECK AMP ON SIGNAL (BOSE SPEAKER AMP)
1. Turn audio system ON.
2. Check voltage between BOSE speaker amp. harness connector
B109 terminal 20 and ground.
Is inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 2.
2.
CHECK AMP ON SIGNAL (AV CONTROL UNIT)
Check voltage between AV control unit harness connector M157 ter-
minal 110 and ground.
Is inspection result normal?
YES
>> Repair harness or connector.
NO
>> Replace AV control unit. Refer to
(+)
(-) Voltage
(Approx.)
Connector
Terminal
B109
20
Ground
Battery voltage
AWNIA1707ZZ
(+)
(-) Voltage
(Approx.)
Connector
Terminal
M157
110
Ground
Battery voltage
ALNIA1177ZZ
AV-422
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/ BOSE]
STEERING SWITCH
STEERING SWITCH
Description
INFOID:0000000009471376
When one of the steering wheel audio control switches is pushed, the resistance in the steering wheel audio
control switch circuit changes, depending on which button is pushed.
Diagnosis Procedure
INFOID:0000000009471377
Regarding Wiring Diagram information, refer to
AV-449, "Wiring Diagram - With BOSE Audio system Without
1.
CHECK STEERING SWITCH RESISTANCE
1. Disconnect steering switch connector M88.
2. Check resistance between steering switch connector terminals.
Do the steering switches check OK?
YES
>> GO TO 2.
NO
>> Replace steering switch. Refer to
AV-496, "Removal and Installation"
2.
CHECK HARNESS BETWEEN COMBINATION SWITCH(SPIRAL CABLE) AND AV CONTROL UNIT
1. Disconnect AV control unit connector M152.
2. Check continuity between AV control unit harness connector M152 and combination switch(spiral cable)
harness connector M30.
3. Check continuity between AV control unit connector M152 and ground.
Are the continuity results as specified?
YES
>> GO TO 3.
NO
>> Repair harness.
Terminal
Signal name
Condition
Resistance
(
Ω)
(Approx.)
14
17
Volume (down)
Depress volume DOWN switch.
0
Volume (up)
Depress volume UP switch.
121
Phone/End
Depress
switch.
321
15
Source
Depress SOURCE switch.
0
Seek (up)
Depress
switch.
121
Seek (down)
Depress
switch.
321
Phone/Send
Depress
switch.
723
AWNIA0035ZZ
Connector
Terminal
Connector
Terminal
Continuity
M152
6
M30
24
Yes
16
31
15
33
Connector
Terminal
—
Continuity
M152
6
Ground
No
16
15
AV
STEERING SWITCH
AV-423
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/ BOSE]
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3.
COMBINATION SWITCH(SPIRAL CABLE) CHECK
1. Disconnect combination switch(spiral cable) connector M88.
2. Check continuity between combination switch(spiral cable) har-
ness connector M30 (A) and M88 (B).
Does the combination switch(spiral cable) check OK?
YES
>> Inspection End.
NO
>> Replace combination switch(spiral cable). Refer to
SR-15, "Removal and Installation"
A
B
Continuity
Connector
Terminal
Connector
Terminal
M30
24
M88
14
Yes
31
15
33
17
ALNIA0931GB
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