Nissan Sentra. Manual - part 66

AV-256

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

U1229 AV CONTROL UNIT

U1229 AV CONTROL UNIT

DTC Logic

INFOID:0000000009758953

DTC DETECTION LOGIC

CONSULT Display

DTC Detection Condition

Possible Cause

iPod CERTIFICATION
[U1229]

iPod authentication chip error.

Replace AV control unit if malfunction occurs 
constantly.
Refer to 

AV-298, "Removal and Installation"

.

AV

U122F AV CONTROL UNIT

AV-257

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

C

D

E

F

G

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A

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U122F AV CONTROL UNIT

DTC Logic

INFOID:0000000009758954

DTC DETECTION LOGIC

CONSULT Display

DTC Detection Condition

Possible Cause

Digital broadcasting connection 
error
[U122F]

Communication error with digital audio broadcast 
module internal to AV control unit.

Replace AV control unit if malfunction occurs 
constantly.
Refer to 

AV-298, "Removal and Installation"

.

AV-258

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

U1244 GPS ANTENNA

U1244 GPS ANTENNA

DTC Logic

INFOID:0000000009758955

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009758956

Regarding Wiring Diagram information, refer to 

AV-234, "Wiring Diagram"

.

1.

GPS ANTENNA INSPECTION

Visually inspect the GPS antenna and antenna feeder. Refer to 

AV-310, "Removal and Installation"

.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning components.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1. Disconnect AV control unit connector M115.

2. Turn ignition switch ON.

3. Check voltage between AV control unit terminal 50 and ground.

Is inspection result normal?

YES

>> Replace GPS antenna. Refer to 

AV-310, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-298, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

GPS ANTENNA CONN
[U1244]

Open or short to ground is detected in GPS an-
tenna connection.

• GPS antenna disconnection.
• Open or short to ground in GPS antenna signal 

circuit.

AV control unit terminal

Ground

Voltage

(+)

(

−)

50

—

5.0 V

AV

U1258 SATELLITE RADIO ANTENNA

AV-259

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

C

D

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A

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U1258 SATELLITE RADIO ANTENNA

DTC Logic

INFOID:0000000009758957

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009758958

Regarding Wiring Diagram information, refer to 

AV-234, "Wiring Diagram"

.

1.

SATELLITE ANTENNA INSPECTION

Visually inspect the satellite antenna and antenna feeder. Refer to 

AV-303, "Location of Antenna"

.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning components.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1. Turn ignition switch ON.

2. Check voltage between AV control unit connector M142 terminal 52 and ground.

Is inspection result normal?

YES

>> Replace satellite radio antenna 

AV-309, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-298, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

XM ANTENNA CONN
[U1258]

Open or short to ground is detected in satellite 
antenna connection.

• Satellite antenna disconnection.
• Open or short to ground in satellite antenna 

signal circuit.

AV control unit terminal

Ground

Voltage

(+)

(

−)

52

—

5.0 V