Nissan Sentra. Manual — part 72
AV-280
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITHOUT BOSE]
MICROPHONE SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
AV-298, "Removal and Installation"
.
NO
>> Replace microphone. Refer to
AV-311, "Removal and Installation"
AV control unit connector M104
Condition
Reference value
(+)
(
−)
Terminal
Terminal
43
41
Speak into microphone.
SKIB3609E
AV
STEERING SWITCH
AV-281
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITHOUT BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
STEERING SWITCH
Diagnosis Procedure
INFOID:0000000009758980
Regarding Wiring Diagram information, refer to
.
1.
CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect combination switch (spiral cable) connector M79.
3. Check resistance between the terminals of combination switch (spiral cable) connector M79.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace steering switches. Refer to
AV-302, "Removal and Installation"
.
2.
CHECK COMBINATION SWITCH (SPIRAL CABLE)
Check continuity between combination switch (spiral cable) connectors M79 and M80.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace combination switch (spiral cable). Refer to
SR-16, "Removal and Installation"
.
3.
CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND AV CONTROL UNIT
1. Disconnect AV control unit connector M80.
2. Check continuity between combination switch (spiral cable) connector M80 and AV control unit connector
M103.
Combination switch (spiral cable) connector M79
Condition
Resistance
Ω
(Approx.)
Terminal
Terminal
14
17
Depress SOURCE switch.
1
Depress
switch.
121
Depress
switch.
321
Depress
switch.
723
15
Depress
switch.
1
Depress
switch.
121
Depress
switch.
321
Combination switch (spiral cable)
Continuity
Connector
Terminal
Connector
Terminal
M79
14
M80
24
Yes
15
31
17
33
Combination switch (spiral cable)
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M80
24
M103
6
Yes
31
16
33
15
AV-282
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITHOUT BOSE]
STEERING SWITCH
3. Check continuity between combination switch (spiral cable) connector M80 and ground.
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
AV-298, "Removal and Installation"
.
NO
>> Repair or replace harness or connectors.
Combination switch (spiral cable)
Ground
Continuity
Connector
Terminal
M80
24
—
No
31
33
AV
USB CONNECTOR
AV-283
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITHOUT BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
USB CONNECTOR
Diagnosis Procedure
INFOID:0000000009758981
Regarding Wiring Diagram information, refer to
.
1.
CHECK USB INTERFACE HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M113 and USB interface connector M132.
3. Check continuity between AV control unit connector M113 and USB interface connector M132.
4. Check continuity between AV control unit connector M113 and ground.
Is the inspection result normal?
YES
>> Replace the USB interface. Refer to
AV-307, "Removal and Installation"
.
NO
>> Repair or replace harness or connectors.
AV control unit
USB interface
Continuity
Connector
Terminal
Connector
Terminal
M113
45
M132
2
Yes
46
1
47
4
48
3
49
5
AV control unit
—
Continuity
Connector
Terminal
M113
45
Ground
No
47
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