Nissan Frontier D40. Manual — part 15
AV-52
< COMPONENT DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
REAR DOOR SPEAKER
1.
Connect audio unit connector M44 and suspect speaker con-
nector.
2.
Turn ignition switch to ACC.
3.
Push “POWER” switch.
4.
Check the signal between audio unit harness connector M44
terminals with CONSULT-III or oscilloscope.
Is the audio signal voltage reading as specified?
YES
>> Replace suspect speaker. Refer to
.
NO
>> Replace audio unit. Refer to
Connector
Terminals
Condition
Reference
signal
(+)
(-)
M44
14
13
Receive
audio sig-
nal
16
15
AWNIA1804ZZ
SKIA0177E
AV
STEERING SWITCH
AV-53
< COMPONENT DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
STEERING SWITCH
Description
INFOID:0000000005274902
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:0000000005274903
Regarding Wiring Diagram information, refer to
1.
CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1.
Turn ignition switch OFF.
2.
Disconnect steering wheel audio control switch connector M102.
3.
Check resistance between steering switch connector terminals.
Do the steering wheel audio control switches check OK?
YES
>> GO TO 2
NO
>> Replace steering wheel audio control switch. Refer to
AV-88, "Removal and Installation"
2.
CHECK HARNESS
1.
Disconnect Bluetooth control unit harness connector B141 and
spiral cable harness connector M30.
2.
Check continuity between Bluetooth control unit harness con-
nector B141 (A) and spiral cable harness connector M30 (B).
3.
Check continuity between Bluetooth control unit connector B141 (A) and ground.
Are the continuity results as specified?
Terminal
Signal name
Condition
Resistance
(
Ω
)
(Approx.)
16
17
Seek (down)
Depress
switch.
165
Volume (down)
Depress VOL down switch.
487
Mode/end
Depress
switch.
0
20
17
Seek (up)
Depress
switch.
165
Volume (up)
Depress VOL up switch.
487
Phone/send
Depress
switch.
0
WKIA4457E
A
B
Continuity
Connector
Terminal
Connector
Terminal
B141
12
M30
24
Yes
13
32
14
31
A
—
Continuity
Connector
Terminal
B141
12
Ground
No
13
14
ALNIA0735GB
AV-54
< COMPONENT DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
STEERING SWITCH
YES
>> GO TO 3
NO
>> Repair harness.
3.
SPIRAL CABLE CHECK
1.
Disconnect spiral cable connector M102.
2.
Check continuity between spiral cable harness connector M30
(A) and M102 (B).
Does the spiral cable check OK?
YES
>> Inspection End.
NO
>> Replace spiral cable. Refer to
SR-6, "Removal and Installation"
A
B
Continuity
Connector
Terminal
Connector
Terminal
M30
24
M102
20
Yes
31
17
32
16
AWLIA1602ZZ
AV
COMMUNICATION SIGNAL CIRCUIT
AV-55
< COMPONENT DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
C
D
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F
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M
B
A
O
P
COMMUNICATION SIGNAL CIRCUIT
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description
INFOID:0000000005274904
Communication signals are exchanged between the audio unit and satellite radio tuner using the communica-
tion circuits.
SATELLITE RADIO TUNER : Diagnosis Procedure
INFOID:0000000005274905
Regarding Wiring Diagram information, refer to
1.
CHECK HARNESS - REQ1
1.
Turn ignition switch OFF.
2.
Disconnect satellite radio tuner (factory installed) connector M41
and audio unit connector M42.
3.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and audio unit harness
connector M42 (B) terminal 48.
4.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and ground.
Are continuity results as specified?
YES
>> GO TO 2
NO
>> Repair harness or connector.
2.
CHECK HARNESS - TXD
1.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 29 and audio unit harness
connector M42 (B) terminal 49.
2.
Check continuity between satellite radio tuner (factory installed)
harness connector M41 (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
M41
28
M42
48
Yes
A
—
Continuity
Connector
Terminal
M41
28
Ground
No
ALNIA0709GB
A
B
Continuity
Connector
Terminal
Connector
Terminal
M41
29
M42
49
Yes
A
—
Continuity
Connector
Terminal
M41
29
Ground
No
ALNIA0707GB
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