Nissan Tiida C11. Manual - part 18

AV-66

< COMPONENT DIAGNOSIS >

[AUDIO WITH NAVIGATION]

U120C NAVI CONTROL UNIT

U120C NAVI CONTROL UNIT

Description

INFOID:0000000001728683

DTC Logic

INFOID:0000000001728684

Diagnosis Procedure

INFOID:0000000001728685

1.

PERFORM THE SELF-DIAGNOSIS

1.

Delete the self-diagnosis results. Turn ignition switch OFF.

2.

Turn ignition switch ON. Replace map DVD-ROM with a normal one. 

3.

Perform the self-diagnosis again. 

4.

Check that the DTC is detected again.

Is any DTC detected?

YES

>> Replace NAVI control unit.

NO

>> Replace Map disc.

Part name

Description

NAVI CONTORL UNIT

• Map data can be read from the map DVD-ROM by installing map DVD-ROM.
• 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 NAVI control unit.

• The NAVI control unit includes the audio, hands-free phone, navigation, and 

vehicle information functions.

• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

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

parking brake). 

MAP DVD-ROM

A collection of map data

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Probable malfunction location

U120C

DVD-ROM MECHA DE-
TECT [U120C]

• Malfunction is detected on DVD-ROM drive pickup lens 

in NAVI control unit.

• There is dirt and damage on the map disc.

• Map  disc
• NAVI  control  unit

AV

U120D NAVI CONTROL UNIT

AV-67

< COMPONENT DIAGNOSIS >

[AUDIO WITH NAVIGATION]

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U120D NAVI CONTROL UNIT

Description

INFOID:0000000001728686

DTC Logic

INFOID:0000000001728687

Diagnosis Procedure

INFOID:0000000001728688

1.

PERFORM THE SELF-DIAGNOSIS

1.

Delete the self-diagnosis results. Turn ignition switch OFF.

2.

Turn ignition switch ON. Replace map DVD-ROM with a normal one. 

3.

Perform the self-diagnosis again. 

4.

Check that the DTC is detected again.

Is any DTC detected?

YES

>> Replace NAVI control unit.

NO

>> Replace Map disc.

Part name

Description

NAVI CONTORL UNIT

• Map data can be read from the map DVD-ROM by installing map DVD-ROM.
• 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 NAVI control unit.

• The NAVI control unit includes the audio, hands-free phone, navigation, and 

vehicle information functions.

• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

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

parking brake). 

MAP DVD-ROM

A collection of map data

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Probable malfunction location

U120D

DVD-ROM DRIVE 
MECHA [U120D]

• Malfunction is detected on DVD-ROM drive pickup lens 

in NAVI control unit.

• There is dirt and damage on the map disc.

• Map disc
• NAVI control unit

AV-68

< COMPONENT DIAGNOSIS >

[AUDIO WITH NAVIGATION]

U120E NAVI CONTROL UNIT

U120E NAVI CONTROL UNIT

Description

INFOID:0000000001728689

DTC Logic

INFOID:0000000001728690

Diagnosis Procedure

INFOID:0000000001728691

1.

PERFORM THE SELF-DIAGNOSIS

1.

Delete the self-diagnosis results. Turn ignition switch OFF.

2.

Turn ignition switch ON. Replace map DVD-ROM with a normal one. 

3.

Perform the self-diagnosis again. 

4.

Check that the DTC is detected again.

Is any DTC detected?

YES

>> Replace NAVI control unit.

NO

>> Replace Map disc.

Part name

Description

NAVI CONTORL UNIT

• Map data can be read from the map DVD-ROM by installing map DVD-ROM.
• 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 NAVI control unit.

• The NAVI control unit includes the audio, hands-free phone, navigation, and 

vehicle information functions.

• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

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

parking brake). 

MAP DVD-ROM

A collection of map data

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Probable malfunction location

U120E

DVD-ROM FOCUS
[U120E]

• Malfunction is detected on DVD-ROM drive pickup lens 

in NAVI control unit.

• There is dirt and damage on the map disc.

• Map  disc
• NAVI  control  unit

AV

U120F NAVI CONTROL UNIT

AV-69

< COMPONENT DIAGNOSIS >

[AUDIO WITH NAVIGATION]

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U120F NAVI CONTROL UNIT

Description

INFOID:0000000001728692

DTC Logic

INFOID:0000000001728693

Diagnosis Procedure

INFOID:0000000001728694

1.

PERFORM THE SELF-DIAGNOSIS

1.

Delete the self-diagnosis results. Turn ignition switch OFF.

2.

Turn ignition switch ON. Replace map DVD-ROM with a normal one. 

3.

Perform the self-diagnosis again. 

4.

Check that the DTC is detected again.

Is any DTC detected?

YES

>> Replace NAVI control unit.

NO

>> Replace Map disc.

Part name

Description

NAVI CONTORL UNIT

• Map data can be read from the map DVD-ROM by installing map DVD-ROM.
• 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 NAVI control unit.

• The NAVI control unit includes the audio, hands-free phone, navigation, and 

vehicle information functions.

• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

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

parking brake). 

MAP DVD-ROM

A collection of map data

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Probable malfunction location

U120F

DVD-ROM TOC
[U120F]

• Malfunction is detected on DVD-ROM drive pickup lens 

in NAVI control unit.

• There is dirt and damage on the map disc.

• Map disc
• NAVI control unit