Nissan Pathfinder. Manual — part 121
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-311
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITH BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M42.
3. Check continuity between A/C and AV switch assembly connector M98 terminal 9 and AV control unit con-
nector M42 terminal 10.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness or connectors.
4.
CHECK SWITCH GROUND CIRCUIT
Check continuity between A/C and AV switch assembly connector M98 terminal 1 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
A/C and AV switch assembly
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M98
3
—
Ignition switch: ACC
Battery voltage
A/C and AV switch assembly
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M98
9
M42
10
Yes
A/C and AV switch assembly
Ground
Continuity
Connector
Terminal
M98
1
—
Yes
AV-312
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITH BOSE]
CENTER SPEAKER
CENTER SPEAKER
Diagnosis Procedure
INFOID:0000000009174592
Regarding Wiring Diagram information, refer to
.
1.
CONNECTOR CHECK
Check the BOSE speaker amp. 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 CENTER SPEAKER SIGNAL CIRCUIT CONTINUITY
1. Disconnect BOSE speaker amp. connector B130 and center speaker connector.
2. Check continuity between BOSE speaker amp. connector B130 and center speaker connector.
3. Check continuity between BOSE speaker amp. connector B130 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK CENTER SPEAKER SIGNAL
1. Connect BOSE speaker amp. connector B130 and center speaker connector.
2. Turn ignition switch to ACC.
3. Push AV control unit POWER switch.
4. Check signal between BOSE speaker amp. connector B130 and ground.
Is the inspection result normal?
BOSE speaker amp.
Center speaker
Continuity
Connector
Terminal
Connector
Terminal
B130
69
M110
1
Yes
70
2
BOSE speaker amp.
Ground
Continuity
Connector
Terminal
B130
69
—
No
70
BOSE speaker amp. connector B130
Condition
Reference value
(+)
(
−)
Terminal
Terminal
69
70
Audio signal output
SKIB3609E
AV
CENTER SPEAKER
AV-313
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITH BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
YES
>> Replace center speaker. Refer to
AV-376, "Removal and Installation"
NO
>> GO TO 4.
4.
CHECK PRE-AMP SIGNAL CIRCUIT CONTINUITY
1. Disconnect AV control unit connector M143 and BOSE speaker amp. connector B130.
2. Check continuity between AV control unit connector M143 and BOSE speaker amp. connector B130.
3. Check continuity between AV control unit connector M143 and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness or connectors.
5.
CHECK PRE-AMP SIGNAL
1. Connect AV control unit connector M143 and BOSE speaker amp. connector B130.
2. Turn ignition switch to ACC.
3. Push AV control unit POWER switch.
4. Check signal between the terminals of AV control unit connector M143.
Is the inspection result normal?
YES
>> Replace BOSE speaker amp. Refer to
AV-372, "Removal and Installation"
NO
>> Replace AV control unit. Refer to
AV-365, "Removal and Installation"
.
AV control unit
BOSE speaker amp.
Continuity
Connector
Terminal
Connector
Terminal
M143
113
B130
75
Yes
119
76
109
73
115
74
AV control unit
Ground
Continuity
Connector
Terminal
M143
113
—
No
119
109
115
AV control unit connector M143
Condition
Reference value
(+)
(
−)
Terminal
Terminal
113
119
Audio signal output
109
115
SKIB3609E
AV-314
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITH BOSE]
INSTRUMENT PANEL SPEAKER/TWEETER
INSTRUMENT PANEL SPEAKER/TWEETER
Diagnosis Procedure
INFOID:0000000009174593
Regarding Wiring Diagram information, refer to
.
1.
CONNECTOR CHECK
Check the BOSE speaker amp. 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 INSTRUMENT PANEL TWEETER SIGNAL CIRCUIT CONTINUITY
1. Disconnect BOSE speaker amp. connector B129 and suspect instrument panel tweeter connector.
2. Check continuity between BOSE speaker amp. connector B129 and suspect instrument panel tweeter
connector.
3. Check continuity between BOSE speaker amp. connector B122 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK INSTRUMENT PANEL TWEETER SIGNAL
1. Connect BOSE speaker amp. connector B129 and suspect instrument panel tweeter connector.
2. Turn ignition switch to ACC.
3. Push AV control unit POWER switch.
4. Check signal between BOSE speaker amp. connector B129 and ground.
BOSE speaker amp.
Instrument panel tweeter
Continuity
Connector
Terminal
Connector
Terminal
B129
41
M62 (LH)
1
Yes
42
2
45
M73 (RH)
1
46
2
BOSE speaker amp.
Ground
Continuity
Connector
Terminal
B129
41
—
No
42
45
46
BOSE speaker amp.
Condition
Reference value
(+)
(
−)
Terminal
Terminal
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