Nissan Titan A60. Manual — part 73
AV
FRONT TWEETER
AV-117
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1. Connect audio amp. connector M113 and suspect tweeter con-
nector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio amp. harness connector M113
terminals with CONSULT-III or oscilloscope.
Is audio signal voltage as specified?
YES
>> Replace suspect tweeter. Refer to
.
NO
>> GO TO 3.
3.
PRE-AMP HARNESS CHECK
1. Disconnect audio unit connector M171 and audio amp. connec-
tor M113.
2. Check continuity between audio unit harness connector M171
(A) and audio amp. harness connector M113 (B).
3. Check continuity between audio unit harness connector M171
(A) and ground.
Are continuity test results as specified?
YES
>> GO TO 4.
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
4.
PRE-AMP SIGNAL CHECK
Connec-
tor
Terminal
Condition
Reference
signal
(+)
(-)
M113
14
30
Receive
audio sig-
nal
13
29
ALNIA0723GB
SKIA0177E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M171
1
M113
6
Yes
2
22
3
5
4
21
A
—
Continuity
Connector
Terminal
M171
1
Ground
No
2
3
4
ALNIA0720GB
AV-118
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM WITHOUT NAVIGATION]
FRONT TWEETER
1. Connect audio unit connector and audio amp. connector.
2. Turn ignition switch ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M171
terminals with CONSULT-III or oscilloscope.
Are the audio signal voltage readings as specified?
YES
>> Replace audio amp. Refer to
NO
>> Replace audio unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M171
2
1
Receive
audio sig-
nal
4
3
AWNIA1615ZZ
SKIA0177E
AV
CENTER SPEAKER
AV-119
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
CENTER SPEAKER
Description
INFOID:0000000006166510
The audio unit sends audio signals to the audio amp. The audio amp. amplifies the audio signals before send-
ing them to the center speaker using the audio signal circuits.
Diagnosis Procedure
INFOID:0000000006166511
Regarding Wiring Diagram information, refer to
AV-151, "Wiring Diagram - Without Navigation System"
1.
CENTER SPEAKER HARNESS CHECK
1. Disconnect audio amp. connector M113 and center speaker
connector M110.
2. Check continuity between audio amp. harness connector M113
(A) and center speaker harness connector M110 (B).
3. Check continuity between audio amp. harness connector M113
(A) and ground.
Are continuity test results as specified?
YES
>> GO TO 2.
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.
CENTER SPEAKER SIGNAL CHECK
1. Connect audio amp. connector M113 and center speaker con-
nector M110.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio amp. harness connector M113
terminals with CONSULT-III or oscilloscope.
Is the audio signal voltage reading as specified?
A B
Continuity
Connector
Terminal
Connector
Terminal
M113
10
M110
1
Yes
26
2
A
—
Continuity
Connector
Terminal
M113
10
Ground
No
26
ALNIA0724GB
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M113
10
26
Receive
audio sig-
nal
ALNIA0725GB
SKIA0177E
AV-120
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM WITHOUT NAVIGATION]
CENTER SPEAKER
YES
>> Replace center speaker. Refer to
AV-177, "Removal and Installation"
.
NO
>> GO TO 3.
3.
PRE-AMP HARNESS CHECK
1. Disconnect audio unit connector M171 and audio amp. connec-
tor M113.
2. Check continuity between audio unit harness connector M171
(A) and audio amp. harness connector M113 (B).
3. Check continuity between audio unit harness connector M171
(A) and ground.
Are continuity test results as specified?
YES
>> GO TO 4.
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
4.
PRE-AMP SIGNAL CHECK
1. Connect audio unit connector and audio amp. connector.
2. Turn ignition switch ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M171
terminals with CONSULT-III or oscilloscope.
Are the audio signal voltage readings as specified?
YES
>> Replace audio amp. Refer to
NO
>> Replace audio unit. Refer to
A
B
Continuity
Connector
Terminal
Connector
Terminal
M171
1
M113
6
Yes
2
22
3
5
4
21
A
—
Continuity
Connector
Terminal
M171
1
Ground
No
2
3
4
ALNIA0720GB
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M171
2
1
Receive
audio sig-
nal
4
3
AWNIA1615ZZ
SKIA0177E
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