Nissan Pathfinder. Manual — part 118
AV
U1255 SATELLITE RADIO TUNER
AV-299
< 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 4.
NO
>> Replace AV control unit. Refer to
AV-365, "Removal and Installation"
.
4.
CHECK SATELLITE RADIO TUNER VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M51.
3. Connect satellite radio tuner connector B2.
4. Turn ignition switch ON.
5. Check voltage between satellite radio tuner connector B2 terminal 30 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace satellite radio tuner. Refer to
AV-384, "Removal and Installation"
AV control unit
Ground
Voltage
(Approx.)
(+)
(
−)
Connector
Terminal
M51
100
—
7.0 V
101
Satellite radio tuner
Ground
Voltage
(Approx.)
(+)
(
−)
Connector
Terminals
B2
30
—
7.0 V
AV-300
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITH BOSE]
U1263 USB
U1263 USB
DTC Logic
INFOID:0000000009174577
Diagnosis Procedure
INFOID:0000000009174578
1.
CHECK USB INTERFACE HARNESS
Visually inspect USB interface harness.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace USB interface harness. Refer to
AV-380, "Removal and Installation"
.
2.
CHECK USB INTERFACE HARNESS CONTINUITY
Check USB interface harness continuity. Refer to
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
AV-365, "Removal and Installation"
.
NO
>> Replace USB interface harness. Refer to
AV-380, "Removal and Installation"
.
CONSULT Display
DTC Detection Condition
Possible Cause
USB OVERCURRENT
[U126]
Overcurrent in USB connector is detected.
Check USB harness between the AV control unit
and USB connector.
AV
U1264 ANTENNA AMP.
AV-301
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITH BOSE]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
U1264 ANTENNA AMP.
DTC Logic
INFOID:0000000009174579
Diagnosis Procedure
INFOID:0000000009174580
Regarding Wiring Diagram information, refer to
.
1.
CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND ANTENNA BASE
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M155 and antenna base connector M502.
3. Check continuity between AV control unit connector M155 and antenna base connector M502.
4. Check continuity between AV control unit connector M155 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK AV CONTROL UNIT VOLTAGE
1. Connect AV control unit connector M155.
2. Turn ignition switch ON.
3. Check voltage between AV control unit connector M155 and ground.
Is the inspection result normal?
YES
>> Replace antenna base. Refer to
AV-389, "Removal and Installation"
.
NO
>> Replace AV control unit. Refer to
AV-365, "Removal and Installation"
.
CONSULT Display
DTC Detection Condition
Possible Cause
ANTENNA AMP TERMINAL
[U1264]
Antenna amp. ON signal circuit open or short cir-
cuited.
Antenna amp. ON signal circuit between AV con-
trol unit and antenna amp.
AV control unit
Antenna base
Continuity
Connector
Terminal
Connector
Terminal
M155
126
M502
1
Yes
AV control unit
Ground
Continuity
Connector
Terminal
M155
126
—
No
AV control unit
Ground
Voltage
(Approx.)
(+)
(–)
Connector
Terminal
M155
126
—
Battery voltage
AV-302
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO WITH BOSE]
U1265 BOSE AMP.
U1265 BOSE AMP.
DTC Logic
INFOID:0000000009174581
Diagnosis Procedure
INFOID:0000000009174582
Regarding Wiring Diagram information, refer to
.
1.
CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND BOSE SPEAKER AMP.
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M143 and Bose speaker amp. connector B130.
3. Check continuity between AV control unit connector M143 and Bose speaker amp. connector M130.
4. Check continuity between AV control unit connector M122 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK AV CONTROL UNIT VOLTAGE
1. Connect AV control unit connector M143.
2. Turn ignition switch ON.
3. Check voltage between AV control unit connector M143 and ground.
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"
.
CONSULT Display
DTC Detection Condition
Possible Cause
AMP ON TERMINAL
[U1265]
BOSE amp. ON signal circuit open or short cir-
cuited.
BOSE amp. ON signal circuit between AV control
unit and BOSE speaker amp.
AV control unit
Bose speaker amp.
Continuity
Connector
Terminal
Connector
Terminal
M143
110
B130
60
Yes
AV control unit
Ground
Continuity
Connector
Terminal
M143
110
—
No
AV control unit
Ground
Voltage
(Approx.)
(+)
(–)
Connector
Terminal
M143
110
—
Battery voltage
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