Nissan Pathfinder. Manual - part 175

AV

U1244 GPS ANTENNA

AV-527

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U1244 GPS ANTENNA

DTC Logic

INFOID:0000000009174730

Diagnosis Procedure

INFOID:0000000009174731

Regarding Wiring Diagram information, refer to 

AV-442, "Wiring Diagram"

.

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

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U1258 SATELLITE RADIO ANTENNA

U1258 SATELLITE RADIO ANTENNA

DTC Logic

INFOID:0000000009174732

Diagnosis Procedure

INFOID:0000000009174733

Regarding Wiring Diagram information, refer to 

AV-442, "Wiring Diagram"

.

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

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U125A HEADREST DISPLAY UNIT

DTC Logic

INFOID:0000000009174734

Diagnosis Procedure

INFOID:0000000009174735

Regarding Wiring Diagram information, refer to 

AV-442, "Wiring Diagram"

.

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

: Diagnosis Procedure"

.

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

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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 

AV-530, "Diagnosis Procedure"

.

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.