Nissan Pathfinder. Manual — part 175
AV
U1244 GPS ANTENNA
AV-527
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM AUDIO WITH NAVIGATION]
C
D
E
F
G
H
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K
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M
B
A
O
P
U1244 GPS ANTENNA
DTC Logic
INFOID:0000000009174730
Diagnosis Procedure
INFOID:0000000009174731
Regarding Wiring Diagram information, refer to
.
1.
GPS ANTENNA INSPECTION
Visually inspect the GPS antenna and antenna feeder. Refer to
AV-637, "Removal and Installation"
.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Replace malfunctioning parts.
2.
CHECK AV CONTROL UNIT VOLTAGE
1. Disconnect GPS antenna connector.
2. Turn ignition switch ON.
3. Check voltage between AV control unit connector M25 and ground.
Is inspection result normal?
YES
>> Inspection End.
NO
>> Replace AV control unit. Refer to
AV-611, "Removal and Installation"
CONSULT Display
DTC Detection Condition
Possible Cause
GPS ANTENNA CONN
[U1244]
GPS antenna connection malfunction is detect-
ed.
GPS antenna disconnection.
AV control unit
Ground
Voltage
(+)
(
−)
Connector
Terminal
M25
130
—
5.0 V
AV-528
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM AUDIO WITH NAVIGATION]
U1258 SATELLITE RADIO ANTENNA
U1258 SATELLITE RADIO ANTENNA
DTC Logic
INFOID:0000000009174732
Diagnosis Procedure
INFOID:0000000009174733
Regarding Wiring Diagram information, refer to
.
1.
SATELLITE RADIO ANTENNA INSPECTION
Visually inspect the satellite radio antenna and antenna feeder. Refer to
AV-635, "Location of Antennas"
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Replace malfunctioning parts.
2.
CHECK AV CONTROL UNIT VOLTAGE
1. Disconnect AV control unit connector M156.
2. Turn ignition switch ON.
3. Check voltage between AV control unit connector and ground.
Is inspection result normal?
YES
>> Inspection End.
NO
>> Replace AV control unit. Refer to
AV-611, "Removal and Installation"
CONSULT Display
DTC Detection Condition
Possible Cause
XM ANTENNA CONN
[U1258]
Satellite radio antenna connection malfunction is
detected.
Satellite radio antenna disconnection.
AV control unit
Ground
Voltage
(+)
(
−)
Connector
Terminal
M156
129
—
5.0 V
AV
U125A HEADREST DISPLAY UNIT
AV-529
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM AUDIO WITH NAVIGATION]
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U125A HEADREST DISPLAY UNIT
DTC Logic
INFOID:0000000009174734
Diagnosis Procedure
INFOID:0000000009174735
Regarding Wiring Diagram information, refer to
.
1.
CHECK HEADREST DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check headrest display unit power supply and ground circuits. Refer to
AV-554, "HEADREST DISPLAY UNIT
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK AV COMMUNICATION CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect headrest display unit connectors.
3. Check continuity between headrest display unit (driver seat) connector B223 and headrest display unit
(passenger seat) connector B317.
4. Check continuity between headrest display unit (driver seat) connector B223 and ground.
Is the inspection result normal?
YES
>> Replace headrest display unit (passenger seat). Refer to
AV-616, "Removal and Installation"
NO
>> Repair or replace harness or connectors.
CONSULT Display
DTC Detection Condition
Possible Cause
3RD DISP CONN
[U125A]
When any of the following is detected.
• headrest display unit power supply or ground
circuit malfunction.
• AV communication circuit malfunction be-
tween headrest display units.
• Headrest display unit power supply and ground
circuits.
• AV communication circuits between headrest
display units.
Headrest display unit (driver seat)
Headrest display unit (passenger seat)
Continuity
Connector
Terminal
Connector
Terminal
B223
26
B317
11
Yes
27
10
Headrest display unit (driver seat)
Ground
Continuity
Connector
Terminal
B223
26
—
No
27
AV-530
< DTC/CIRCUIT DIAGNOSIS >
[PREMIUM AUDIO WITH NAVIGATION]
U1263 USB
U1263 USB
DTC Logic
INFOID:0000000009174736
Diagnosis Procedure
INFOID:0000000009174737
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-626, "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-611, "Removal and Installation"
NO
>> Replace USB interface harness. Refer to
AV-626, "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.
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