2007 INFINITI FX35 Service Manual

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Page 729 of 4366

INFINITI FX35 2007 Service Manual NAVIGATION SYSTEM AV-123
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Revision: 2006 July 2007 FX35/FX45
Self-Diagnosis Mode (DCU)NKS003KF
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system

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INFINITI FX35 2007 Service Manual AV-124
NAVIGATION SYSTEM
Revision: 2006 July 2007 FX35/FX45
7. On the diagnosis results screen, each unit name and connection
line will be colored according to the diagnosis result, as follows.
NOTE

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INFINITI FX35 2007 Service Manual NAVIGATION SYSTEM AV-125
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Revision: 2006 July 2007 FX35/FX45
Self-Diagnosis Codes
Diagnosis
No. Possible cause Action to take
1 Display control unit malfunct

NAVIGATION SYSTEM AV-125
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Self-Diagnosis Codes
Diagnosis
No. Possible cause Action to take
1 Display control unit malfunction is detected. Replace display control unit.
2 Malfunction is detected on communication signal between
display control unit and display. 1. Check communication circuit between display control
unit and display.
2. Check communication signal between display control unit and display.
3. If the results from the above checkup show no malfunc- tion, replace either display control unit or display, and
then start self-diagnosis.
4. If self-diagnosis results still show any malfunction, replace the other unit.
3
Audio unit power supply circuit malfunction is detected.
Malfunction is detected on communication signal
between display control unit and audio unit. 1. Check audio unit power supply circuit.
2. Check communication circuit between display control unit and audio unit.
3. Check communication signal between display control unit and audio unit.
4. If the results from the above checkup show no malfunc- tion, replace either display control unit or audio unit, and
then start self-diagnosis.
5. If self-diagnosis results still show any malfunction, replace the other unit.
4
NAVI control unit power supply and ground circuit mal-
function is detected.
Malfunction is detected on communication signal
between display control unit and NAVI control unit. 1. Check NAVI control unit power supply and ground cir-
cuit.
2. Check communication circuit between display control unit and NAVI control unit.
3. If the results from the above checkup show no malfunc- tion, replace either display control unit or NAVI control
unit, and then start self-diagnosis.
4. If self-diagnosis results still show any malfunction, replace the other unit.
5 GPS antenna connection malfunction is detected. 1. Check if GPS antenna feeder line is snapped or
pinched.
2. If the results from the above checkup show no malfunc- tion, replace GPS antenna, and then restart self-diagno-
sis.
3. If self-diagnosis results still show any malfunction, replace NAVI control unit.
6
Satellite radio tuner power supply and ground circuit
malfunction is detected.
Malfunction is detected on communication signal
between audio unit and satellite radio tuner. 1. Check satellite radio tuner power supply and ground cir-
cuit.
2. Check communication circuit between audio unit and satellite radio tuner.
3. Check communication signal between audio unit and satellite radio tuner.
4. If the results from the above checkup show no malfunc- tion, replace either audio unit or satellite radio tuner, and
then start self-diagnosis.
5. If self-diagnosis results still show any malfunction, replace the other unit.

Page 732 of 4366

INFINITI FX35 2007 Service Manual AV-126
NAVIGATION SYSTEM
Revision: 2006 July 2007 FX35/FX45
Self-Diagnosis Mode (NAVI)NKS003KG
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system OFF.
3. While pressing the “4” but

Page 733 of 4366

INFINITI FX35 2007 Service Manual NAVIGATION SYSTEM AV-127
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Revision: 2006 July 2007 FX35/FX45
7. Select a switch on the diagnosis results screen, and comments
for the diagnosis results will be

Page 734 of 4366

INFINITI FX35 2007 Service Manual AV-128
NAVIGATION SYSTEM
Revision: 2006 July 2007 FX35/FX45
SELF-DIAGNOSIS RESULT
Check the applicable display in the following table, and then repair the malfunctioning parts.
Quick Reference Table
S

Page 735 of 4366

INFINITI FX35 2007 Service Manual NAVIGATION SYSTEM AV-129
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Revision: 2006 July 2007 FX35/FX45
Confirmation/Adjustment ModeNKS003KH
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio sys

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INFINITI FX35 2007 Service Manual AV-130
NAVIGATION SYSTEM
Revision: 2006 July 2007 FX35/FX45
DISPLAY DIAGNOSIS
Color tone and shading of the display control unit-generated image can be checked by the display of a color
bar and a gra

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