Nissan Versa Sedan. Instruction — part 7
AV-20
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
POWER SUPPLY AND GROUND CIRCUIT
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure
INFOID:0000000009266702
Regarding Wiring Diagram information, refer to
1.
CHECK FUSES
Check that the following fuses are not blown.
Are the fuses blown?
YES
>> Replace the blown fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
POWER SUPPLY CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M43.
3. Check voltage between audio unit connector M43 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
GROUND CIRCUIT CHECK
Inspect audio unit case ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair audio unit case ground.
Terminals
Signal name
Fuse No.
19
Battery power supply
29 (20A)
7
ACC power supply
18 (10A)
Audio unit
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M43
19
—
Ignition switch: OFF
Battery voltage
7
Ignition switch: ACC
AV
FRONT DOOR SPEAKER
AV-21
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
FRONT DOOR SPEAKER
Diagnosis Procedure
INFOID:0000000009266704
Regarding Wiring Diagram information, refer to
1.
CONNECTOR CHECK
Check the audio unit and speaker connectors for the following:
• Proper connection.
• Damage.
• Disconnected or loose terminals.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminals and connectors.
2.
CHECK FRONT DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY
1. Disconnect audio unit connector M43 and suspect front door speaker connector.
2. Check continuity between audio unit connector M43 and suspect front door speaker connector.
3. Check continuity between audio unit connector M43 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK FRONT DOOR SPEAKER SIGNAL
1. Connect audio unit connector M43 and suspect front door speaker connector.
2. Turn ignition switch to ACC.
3. Push audio unit POWER switch.
4. Check signal between terminals of audio unit connector M43.
Audio unit
Front door speaker
Continuity
Connector
Terminal
Connector
Terminal
M43
2
D12 (LH)
1
Yes
3
2
11
D112 (RH)
1
12
2
Audio unit
Ground
Continuity
Connector
Terminal
M43
2
—
Yes
3
11
12
AV-22
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
FRONT DOOR SPEAKER
Is the inspection result normal?
YES
>> Replace front door speaker. Refer to
AV-29, "Removal and Installation"
NO
>> Replace audio unit. Refer to
AV-28, "Removal and Installation"
.
Audio unit connector M43
Condition
Reference value
(+)
(-)
Terminal
Terminal
2
3
Audio signal output
11
12
SKIA0177E
AV
REAR DOOR SPEAKER
AV-23
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
REAR DOOR SPEAKER
Diagnosis Procedure
INFOID:0000000009266706
Regarding Wiring Diagram information, refer to
1.
CONNECTOR CHECK
Check the audio unit and speaker connectors for the following:
• Proper connection.
• Damage.
• Disconnected or loose terminals.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminals and connectors.
2.
CHECK REAR DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY
1. Disconnect audio unit connector M43 and suspect rear door speaker connector.
2. Check continuity between audio unit connector M43 and suspect rear door speaker connector.
3. Check continuity between audio unit connector M43 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK REAR DOOR SPEAKER SIGNAL
1. Connect audio unit connector M43 and suspect rear door speaker connector.
2. Turn ignition switch to ACC.
3. Push audio unit POWER switch.
4. Check signal between terminals of audio unit connector M43.
Audio unit
Rear door speaker
Continuity
Connector
Terminal
Connector
Terminal
M43
4
D207 (LH)
1
Yes
5
2
13
D307 (RH)
1
14
2
Audio unit
Ground
Continuity
Connector
Terminal
M43
4
—
Yes
5
13
14
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