Nissan Frontier. Instruction — part 18
AV-64
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO (FOR MEXICO)]
FRONT DOOR SPEAKER
FRONT DOOR SPEAKER
Description
INFOID:0000000010227916
The audio unit sends audio signals to the front door speakers using the front door speaker circuits.
Diagnosis Procedure
INFOID:0000000010227917
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 or connectors.
2.
CHECK FRONT DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY
1. Disconnect audio unit connector M12 and suspect front door speaker connector.
2. Check continuity between audio unit connector M12 and suspect front door speaker connector.
3. Check continuity between audio unit connector M12 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness or connectors.
3.
CHECK FRONT DOOR SPEAKER SIGNAL
1. Connect audio unit connector M12 and suspect front door speaker connector.
2. Turn ignition switch to ACC.
3. Push audio unit POWER switch.
4. Check signal between the terminals of audio unit connector M12.
Audio unit
Front door speaker
Continuity
Connector
Terminal
Connector
Terminal
M12
2
D12 (LH)
1
Yes
3
2
11
D112 (RH)
1
12
2
Audio unit
Ground
Continuity
Connector
Terminal
M12
2
—
No
3
11
12
Audio unit connector M12
Condition
Reference value
(+)
(
−)
Terminal
Terminal
AV
FRONT DOOR SPEAKER
AV-65
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO (FOR MEXICO)]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is the inspection result normal?
YES
>> Replace front door speaker. Refer to
AV-86, "Removal and Installation"
NO
>> Replace audio unit. Refer to
AV-84, "Removal and Installation"
.
2
3
Audio signal output
11
12
SKIB3609E
AV-66
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO (FOR MEXICO)]
FRONT TWEETER
FRONT TWEETER
Description
INFOID:0000000010227918
The audio unit sends audio signals to the front tweeters using the front tweeter circuits.
Diagnosis Procedure
INFOID:0000000010227919
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 or connectors.
2.
CHECK FRONT DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY
1. Disconnect audio unit connector M12 and suspect front tweeter connector.
2. Check continuity between audio unit connector M12 and suspect front tweeter connector.
3. Check continuity between audio unit connector M12 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness or connectors.
3.
CHECK FRONT DOOR SPEAKER SIGNAL
1. Connect audio unit connector M12 and suspect front tweeter connector.
2. Turn ignition switch to ACC.
3. Push audio unit POWER switch.
4. Check signal between the terminals of audio unit connector M12.
Audio unit
Front tweeter
Continuity
Connector
Terminal
Connector
Terminal
M12
2
M109 (LH)
1
Yes
3
2
11
M111 (RH)
1
12
2
Audio unit
Ground
Continuity
Connector
Terminal
M12
2
—
No
3
11
12
Audio unit connector M12
Condition
Reference value
(+)
(
−)
Terminal
Terminal
AV
FRONT TWEETER
AV-67
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO (FOR MEXICO)]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is the inspection result normal?
YES
>> Replace front tweeter. Refer to
AV-85, "Removal and Installation"
NO
>> Replace audio unit. Refer to
AV-84, "Removal and Installation"
.
2
3
Audio signal output
11
12
SKIB3609E
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