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Nissan Pathfinder (2012 year). Manual - part 64

AV-330

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1244 GPS ANTENNA

U1244 GPS ANTENNA

Description

INFOID:0000000007347878

The GPS antenna receives satellite GPS signals.

DTC Logic

INFOID:0000000007347879

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000007347880

Regarding Wiring Diagram information, refer to

AV-385, "Wiring Diagram - With Navigation System"

GPS ANTENNA CHECK

Inspect GPS antenna and antenna feeder for damage or poor connection.
Is the GPS antenna and feeder clean and undamaged?

YES

>> GO TO 2

>> Repair or replace malfunctioning parts.

CHECK AV CONTROL UNIT VOLTAGE

1. Turn ignition switch ON.

2. Check voltage between AV control unit connector M72 terminal

109 and ground.

Is the voltage reading as specified?

YES

>> Replace GPS antenna. Refer to

AV-434, "Removal and

Installation"

>> Replace AV control unit. Refer to

AV-420, "Removal and

Installation"

DTC

CONSULT display

Detection condition

U1244

GPS ANTENNA CONN
[U1244]

GPS antenna connection malfunction is detected.

109 - Ground

: Approx. 5V

ALNIA0541GB

August 2012

2012 Pathfinder

U1258 SATELLITE RADIO ANTENNA

AV-331

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1258 SATELLITE RADIO ANTENNA

Description

INFOID:0000000007347881

DTC Logic

INFOID:0000000007347882

Diagnosis Procedure

INFOID:0000000007347883

Regarding Wiring Diagram information, refer to

AV-385, "Wiring Diagram - With Navigation System"

SATELLITE RADIO ANTENNA CHECK

Visually check satellite radio antenna and antenna feeder.
Is inspection result OK?

YES

>> GO TO 2

>> Repair malfunctioning parts.

CHECK AV CONTROL UNIT VOLTAGE

1. Disconnect AV control unit connector M71.

2. Turn ignition switch ON.

3. Check voltage between AV control unit connector M71 terminal

108 and ground.

Is voltage approximately 5 volts?

YES

>> Replace sattelite radio antenna. Refer to

AV-435,

"Removal and Installation"

>> Replace AV control unit. Refer to

AV-420, "Removal and

Installation"

Part name

Description

SATELLITE RADIO ANTENNA

Satellite radio signal is received and sent to audio control unit.

DTC

Display contents of

CONSULT

DTC Detection Condition

Possible causes

U1258

XM ANETNNA CONN
[U1258]

Satellite radio antenna connection malfunction is detected Satellite radio antenna disconnection

108 - Ground

: Approx. 5 V

ALNIA0544GB

August 2012

2012 Pathfinder

AV-332

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1300 AV COMM CIRCUIT

U1300 AV COMM CIRCUIT

Description

INFOID:0000000007347884

U1300 is indicated when malfunction occurs in communication signal of multi AV system. Indicated simulta-

neously, without fail, with the malfunction of control units connected to AV control unit with communication line.

Determine the possible malfunction cause from the table below.

Self-diagnosis results display item

DTC

Display contents of

CONSULT

DTC Detection Condition

Possible causes

U1300
U1240

• AV COMM CIRCUIT

[U1300]

• SWITCH CONN

[U1240]

• A/C and AV switch assembly power supply and ground

circuit malfunction is detected

• A malfunction is detected in communication circuit be-

tween AV control unit and A/C and AV switch assembly

• A malfunction is detected in communication signal be-

tween AV control unit and A/C and AV switch assembly

• A/C and AV switch assembly power

supply and ground circuits

• Communication circuit between AV

control unit and A/C and AV switch
assembly

August 2012

2012 Pathfinder

U1310 AV CONTROL UNIT

AV-333

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1310 AV CONTROL UNIT

Description

INFOID:0000000007347885

Replace the AV control unit if this DTC is displayed. Refer to

AV-420, "Removal and Installation"

DTC Logic

INFOID:0000000007347886

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system and it is connected to each control

unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the automatic brightness ON/OFF signals that are required for the dis-

play dimming control.

• It inputs the signals for driving status recognition (vehicle speed, reverse and

parking brake).

DTC

Display contents of

CONSULT

DTC Detection Condition

Action to take

U1310

CONTROL UNIT (AV)
[U1310]

An initial diagnosis error is detected in AV communication
circuit.

Replace AV control unit. Refer to

AV-

420, "Removal and Installation"

August 2012

2012 Pathfinder

AV-334

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure

INFOID:0000000007347887

Regarding Wiring Diagram information, refer to

AV-385, "Wiring Diagram - With Navigation System"

CHECK FUSES

Check that the following AV control unit fuses are not blown.

Are the fuses OK?

YES

>> GO TO 2

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

POWER SUPPLY CIRCUIT CHECK

1. Disconnect AV control unit connectors M39 and M48.

2. Check voltage between the AV control unit connectors M39 and

M48 and ground.

Are the voltage results as specified?

YES

>> GO TO 3

>> • Check connector housings for disconnected or loose

terminals.

• Repair harness or connector.

GROUND CIRCUIT CHECK

1. Ignition OFF.

2. Check continuity between AV control unit harness connector M39, M48 and ground.

Unit

Terminals

Signal name

Fuse No.

AV control unit

19, 69, 71

Battery power

7, 72

Ignition switch ACC or ON

Ignition switch ON or START

(+)

(-)

OFF

ACC

Connector

Terminal

M39

Ground

Battery
voltage

Ground

Battery
voltage

M48

Ground

Battery
voltage

Ground

Battery
voltage

Ground

Battery
voltage

Ground

Battery
voltage

AWNIA0459GB

August 2012

2012 Pathfinder

POWER SUPPLY AND GROUND CIRCUIT

AV-335

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

Are the continuity results as specified?

YES

>> Inspection End.

>> Repair AV control unit ground.

DISPLAY UNIT
DISPLAY UNIT : Diagnosis Procedure

INFOID:0000000007347888

Regarding Wiring Diagram information, refer to

AV-385, "Wiring Diagram - With Navigation System"

CHECK FUSES

Check that the following display unit fuses are not blown.

Are the fuses OK?

YES

>> GO TO 2

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch to ACC

2. Check voltage between display unit harness connector M92 and

ground.

Does specified voltage exist?

YES

>> GO TO 3.

>> • Check connector housings for disconnected or loose

terminals.

• Repair harness or connector.

CHECK GROUND CIRCUIT

(+)

(-)

Continuity

Connector

Terminal

M39

Ground

Yes

M48

Unit

Terminals

Signal name

Fuse No.

Display unit

Battery power

Ignition switch ACC or ON

Connector

Terminal

Ignition switch posi-

tion

Value (Approx.)

M92

ACC

Battery voltage

ALNIA0317GB

August 2012

2012 Pathfinder

AV-336

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect display unit connector.

3. Check continuity between display unit harness connector M92

and ground.

Does continuity exist?

YES

>> Inspection End.

>> Repair harness or connector.

A/C AND AV SWITCH ASSEMBLY
A/C AND AV SWITCH ASSEMBLY : Diagnosis Procedure

INFOID:0000000007347889

Regarding Wiring Diagram information, refer to

AV-385, "Wiring Diagram - With Navigation System"

CHECK FUSE

Check that the A/C and AV switch assembly fuse is not blown.

Is the fuse OK?

YES

>> GO TO 2

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

POWER SUPPLY CIRCUIT CHECK

1. Disconnect A/C and AV switch assembly connector M98.

2. Check voltage between the A/C and AV switch assembly con-

nector M98 and ground.

Are the voltage results as specified?

YES

>> GO TO 3

>> • Check connector housings for disconnected or loose

terminals.

• Repair harness or connector.

GROUND CIRCUIT CHECK

(+)

(-)

Continuity

Connector

Terminal

M92

Ground

Yes

ALNIA0407GB

Unit

Terminal

Signal name

Fuse No.

A/C and AV switch assembly

Ignition switch ACC or ON

(+)

(-)

OFF

ACC

Connector

Terminal

M98

Ground

Battery
voltage

ALNIA0315GB

August 2012

2012 Pathfinder

POWER SUPPLY AND GROUND CIRCUIT

AV-337

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

1. Ignition OFF.

2. Check continuity between A/C and AV switch assembly harness

connector M98 and ground.

Are the continuity results as specified?

YES

>> Inspection End.

>> Repair A/C and AV switch assembly ground.

BOSE SPEAKER AMP
BOSE SPEAKER AMP : Diagnosis Procedure

INFOID:0000000007347890

Regarding Wiring Diagram information, refer to

AV-385, "Wiring Diagram - With Navigation System"

CHECK FUSE

Check that the BOSE speaker amp. fuse is not blown.

Are the fuses OK?

YES

>> GO TO 2

>> Be sure to eliminate cause of malfunction before installing new fuse.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BOSE speaker amp. connector.

3. Check voltage between BOSE speaker amp. harness connector

B74 terminal 1 and ground.

Is battery voltage present?

YES

>> GO TO 3

>> Check harness between BOSE speaker amp. and fuse.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BOSE speaker amp. connector.

3. Check continuity between BOSE speaker amp. harness connec-

tor B74 terminal 17 and ground.

Does continuity exist?

YES

>> Inspection End.

>> Repair harness or connector.

SUBWOOFER

(+)

(-)

Continuity

Connector

Terminal

M98

Ground

Yes

ALNIA0316GB

Unit

Terminal

Signal name

Fuse No.

BOSE speaker amp.

Battery power

(+)

(-)

Voltage (approx.)

Connector

Terminal

B74

Ground

Battery voltage

ALNIA0527GB

(+)

(-)

Continuity

Connector

Terminal

B74

Ground

Yes

ALNIA0526GB

August 2012

2012 Pathfinder

Content .. 62 63 64 65 ..