Nissan Maxima. Manual — part 109
AV-256
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/O BOSE]
SUBWOOFER
1. Connect AV control unit connector M115 and subwoofer amp.
connector B21.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between AV control unit harness connector
M115 terminals with CONSULT or oscilloscope.
Is the audio signal voltage as specified?
YES
>> Replace subwoofer amp. Refer to
.
NO
>> Replace AV control unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M115
4
5
Receive
audio sig-
nal
13
14
AWNIA0034ZZ
SKIA0177E
AV
STEERING SWITCH
AV-257
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/O BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
STEERING SWITCH
Description
INFOID:0000000010064907
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:0000000010064908
Regarding Wiring Diagram information, refer to
AV-282, "Wiring Diagram - Without BOSE Audio System With-
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-326, "Removal and Installation"
2.
CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND AV CONTROL UNIT
1. Disconnect AV control unit connector M115.
2. Check continuity between AV control unit harness connector M115 and combination switch (spiral cable)
harness connector M30.
3. Check continuity between AV control unit connector M115 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
M115
6
M30
24
Yes
16
31
15
33
Connector
Terminal
—
Continuity
M115
6
Ground
No
16
15
AV-258
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/O BOSE]
STEERING SWITCH
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
AV
COMMUNICATION SIGNAL CIRCUIT
AV-259
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/O BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
COMMUNICATION SIGNAL CIRCUIT
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description
INFOID:0000000010064909
Communication signals are exchanged between the AV control unit and satellite radio tuner using the commu-
nication circuits.
SATELLITE RADIO TUNER : Diagnosis Procedure
INFOID:0000000010064910
Regarding Wiring Diagram information, refer to
AV-282, "Wiring Diagram - Without BOSE Audio System With-
1.
CHECK HARNESS - 1
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector
B111 and AV control unit connector M116.
3. Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 28 and AV control unit har-
ness connector M116 (B) terminal 28.
4. Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 28 and ground.
Are continuity results as specified?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK HARNESS - 2
1. Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 29 and AV control unit har-
ness connector M116 (B) terminal 29.
2. Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 29 and ground.
Are continuity results as specified?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
A
B
Continuity
Connector
Terminal
Connector
Terminal
B111
28
M116
28
Yes
A
—
Continuity
Connector
Terminal
B111
28
Ground
No
ALNIA0334GB
A
B
Continuity
Connector
Terminal
Connector
Terminal
B111
29
M116
29
Yes
A
—
Continuity
Connector
Terminal
B111
29
Ground
No
ALNIA0657GB
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