Nissan Frontier. Manual — part 34
AV-128
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO WITHOUT AMPLIFIER]
FRONT TWEETER
Is the inspection result normal?
YES
>> Replace front tweeter. Refer to
AV-147, "Removal and Installation"
NO
>> Replace audio unit. Refer to
AV-146, "Removal and Installation"
.
2
3
Audio signal output
11
12
SKIB3609E
AV
REAR DOOR SPEAKER
AV-129
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO WITHOUT AMPLIFIER]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
REAR DOOR SPEAKER
Diagnosis Procedure
INFOID:0000000009482114
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 M44 and suspect rear door speaker connector.
2. Check continuity between audio unit connector M44 and suspect rear door speaker connector.
3. Check continuity between audio unit connector M44 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 M44 and suspect rear 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 M44.
Audio unit
Rear door speaker
Continuity
Connector
Terminal
Connector
Terminal
M44
4
D207 (LH) (crew cab)
1
Yes
5
2
13
D307 (RH) (crew cab)
1
14
2
4
B76 (LH) (king cab)
1
5
2
13
B160 (RH) (king cab)
1
14
2
Audio unit
Ground
Continuity
Connector
Terminal
M44
4
—
No
5
13
14
AV-130
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO WITHOUT AMPLIFIER]
REAR DOOR SPEAKER
Is the inspection result normal?
YES
>> Replace rear door speaker. Refer to
AV-149, "Removal and Installation"
.
NO
>> Replace audio unit. Refer to
AV-146, "Removal and Installation"
.
Audio unit connector M44
Condition
Reference value
(+)
(
−)
Terminal
Terminal
4
5
Audio signal output
13
14
SKIB3609E
AV
REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT
AV-131
< DTC/CIRCUIT DIAGNOSIS >
[DISPLAY AUDIO WITHOUT AMPLIFIER]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000009482115
Regarding Wiring Diagram information, refer to
.
1.
CHECK REVERSE INPUT SIGNAL
1. Turn ignition switch ON.
2. Shift the selector lever to R (reverse).
3. Check voltage between audio unit connector M45 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK CAMERA POWER SUPPLY CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M45 and rear view camera connector.
3. Check continuity between audio unit connector M45 and rear view camera connector C251.
4. Check continuity between audio unit connector M45 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK CAMERA POWER SUPPLY VOLTAGE
1. Connect audio unit connector M45 and rear view camera connector.
2. Turn ignition switch ON.
3. Shift the selector lever to R (reverse).
4. Check voltage between audio unit connector M45 and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace audio unit. Refer to
AV-146, "Removal and Installation"
.
4.
CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
Audio unit
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M45
50
—
Selector lever in R (re-
verse)
Battery Voltage
Audio unit
Rear view camera
Continuity
Connector
Terminal
Connector
Terminal
M45
34
C251
1
Yes
Audio unit
Ground
Continuity
Connector
Terminal
M45
34
No
Audio unit
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M45
34
—
Selector lever is in “R”.
6.0 V
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