Nissan Leaf. Manual - part 73

AV

U1010 CONTROL UNIT (CAN)

AV-283

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

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U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000010122552

DTC DETECTION LOGIC

DTC

Display contents of CON-

SULT

Malfunction detection condition

Action to take

U1010

CONTROL UNIT (CAN) 
[U1010]

Malfunction is detected during initial diagnosis of the AV 
control unit CAN controller.

Replace the AV control unit if 
malfunction constantly occurs. 
Refer to 

AV-318, "Removal 

and Installation"

.

AV-284

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

U121F AV CONTROL UNIT

U121F AV CONTROL UNIT

DTC Logic

INFOID:0000000010122553

DTC

Display contents of CON-

SULT

DTC detection condition

Action to take

U121F

CONTROL UNIT
 [U121F] 

AV control unit malfunction is detected

Replace the AV control unit if 
the malfunction constantly oc-
curs. Refer to 

AV-318, "Re-

moval and Installation"

.

AV

U1244 GPS ANTENNA

AV-285

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

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U1244 GPS ANTENNA

DTC Logic

INFOID:0000000010122554

Diagnosis Procedure

INFOID:0000000010122555

Regarding Wiring Diagram information, refer to 

AV-255, "Wiring Diagram"

.

1.

CHECK THE GPS ANTENNA CONNECTOR.

Check the connection status of the GPS antenna connector.
Is the check result normal?

YES

>> GO TO 2.

NO

>> Repair items found in non-standard condition.

2.

CHECK THE GPS ANTENNA FEEDER.

Check the GPS antenna feeder visually.
Is the check result normal?

YES

>> GO TO 3.

NO

>> Replace the GPS antenna. Refer to 

AV-323, "Removal and Installation"

.

3.

CHECK AV CONTROL UNIT VOLTAGE

1. Disconnect the GPS antenna connector.

2. Turn power switch ON.

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

Is the check result normal?

YES

>> Replace the GPS antenna. Refer to 

AV-323, "Removal and Installation"

.

NO

>> Replace the AV control unit. Refer to 

AV-318, "Removal and Installation"

.

DTC

Display contents of CON-

SULT

DTC detection condition

Possible malfunction factor/Ac-

tion to take

U1244

GPS ANTENNA CONN
 [U1244] 

GPS antenna connection malfunction is detected

• Check the connection status of 

the GPS antenna.

• Replace the GPS antenna. Re-

fer to 

AV-323, "Removal and In-

stallation"

.

AV control unit

Ground

Voltage

Terminal

83

Approximately 5.0 V

AV-286

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

U1258 SATELLITE RADIO ANTENNA

U1258 SATELLITE RADIO ANTENNA

DTC Logic

INFOID:0000000010122556

Diagnosis Procedure

INFOID:0000000010122557

Regarding Wiring Diagram information, refer to 

AV-255, "Wiring Diagram"

.

1.

SATELLITE RADIO ANTENNA CHECK

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

YES

>> GO TO 2.

NO

>> Repair malfunctioning parts.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1. Disconnect satellite radio antenna connector.

2. Turn power switch ON.

3. Check voltage between AV control unit and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace AV control unit. Refer to 

AV-318, "Removal and Installation"

.

DTC

Display contents of 

CONSULT

DTC Detection Condition

Possible causes

U1258

XM ANTENNA CONN
[U1258]

Satellite radio antenna connection malfunction is detect-
ed.

Satellite radio antenna disconnection.

(+)

(

−)

Voltage

(Approx.)

AV control unit

Terminal

88

Ground

5.0 V