Nissan Versa Sedan. Instruction - part 49

AV-188

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

U1264 ANTENNA AMP.

U1264 ANTENNA AMP.

DTC Logic

INFOID:0000000009642976

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009642977

Regarding Wiring Diagram information, refer to 

AV-162, "Wiring Diagram"

.

1.

ANTENNA AMP. INSPECTION

Visually inspect the antenna base (antenna amp.) and antenna feeder. Refer to 

AV-230, "Feeder Layout"

.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning components.

2.

CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND ANTENNA BASE

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M102 and antenna base connector M351.

3. Check continuity between AV control unit connector M102 and antenna base connector M351.

4. Check continuity between AV control unit connector M102 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

3.

CHECK AV CONTROL UNIT VOLTAGE

1. Connect AV control unit connector M102.

2. Turn ignition switch ON.

3. Check voltage between AV control unit connector M102 and ground.

Is the inspection result normal?

YES

>> Replace antenna base. Refer to 

AV-226, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-222, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

ANTENNA AMP TERMINAL
[U1264]

Open or short to ground is detected in Antenna 
amp. connection.

• Antenna amp. disconnection.
• Open or short to ground in antenna amp. ON 

signal circuit.

AV control unit

Antenna base

Continuity

Connector

Terminal

Connector

Terminal

M102

58

M351

1

Yes

AV control unit

Ground

Continuity

Connector

Terminal

M102

58

—

No

AV control unit

Ground

Voltage

(Approx.)

(+)

(–)

Connector

Terminal

M102

58

—

Battery voltage

AV

U12AA CONFIGURATION ERROR

AV-189

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

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U12AA CONFIGURATION ERROR

DTC Logic

INFOID:0000000009375171

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009375172

1.

PERFORM CONFIGURATION

When U12AA is detected, configuration data must be written.

>> Write configuration data with CONSULT. Refer to 

AV-178, "CONFIGURATION (AV CONTROL

UNIT) : Work Procedure"

.

CONSULT Display

DTC Detection Condition

Possible Cause

Configuration Error
[U12AA]

AV control unit is not properly configured or con-
figuration is corrupt.

Configuration data needs to be written.
Refer to 

AV-178, "CONFIGURATION (AV CON-

TROL UNIT) : Work Procedure"

.

AV-190

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

U12AC AV CONTROL UNIT

U12AC AV CONTROL UNIT

DTC Logic

INFOID:0000000009375173

DTC DETECTION LOGIC

CONSULT Display

DTC Detection Condition

Possible Cause

Display Temperature too High
[U12AC]

Display temperature has exceeded maximum 
temperature. Display is switched OFF to avoid ir-
reversible damage.

Replace AV control unit if malfunction occurs 
constantly.
Refer to 

AV-222, "Removal and Installation"

.

AV

U12AD AV CONTROL UNIT

AV-191

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

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U12AD AV CONTROL UNIT

DTC Logic

INFOID:0000000009375174

DTC DETECTION LOGIC

CONSULT Display

DTC Detection Condition

Possible Cause

ECU Temperature too High
[U12AD]

AV control unit temperature has exceeded maxi-
mum temperature.

Replace AV control unit if malfunction occurs 
constantly.
Refer to 

AV-222, "Removal and Installation"

.