Infiniti Q45. Manual — part 169

NAVIGATION SYSTEM

AV-105

C

D

E

F

G

H

I

J

L

M

A

B

AV

Self-diagnosis Codes

Diagnosis

No.

Possible cause

Action to take

1

AV and NAVI control unit malfunction is detected

Replace AV and NAVI control unit

2

DVD-ROM not inserted is detected

Insert DVD-ROM

3

●

Malfunction is detected on DVD-ROM drive pickup lens
in AV and NAVI control unit

●

There is dirt and damage on the DVD-ROM

1. Check if the inserted DVD-ROM is specified for this nav-

igation system, and the DVD-ROM is dirty, scratched or
warped.

2. If the results from the above checkup show no malfunc-

tion, insert the same DVD-ROM, and then restart self-
diagnosis.

3. If self-diagnosis results still show any malfunction,

replace AV and NAVI control unit.

4

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 AV and NAVI control unit.

5

Malfunction is detected on communication signal between
multifunction switch and audio unit

1. Check communication circuit between multifunction

switch and audio unit.

2. If the results from the above checkup show no malfunc-

tion, replace either multifunction switch or audio unit,
and then start self-diagnosis.

3. If self-diagnosis results still show any malfunction,

replace the other unit.

6

●

Low tire pressure warning control unit power supply and
ground circuit malfunction is detected

●

Malfunction is detected on communication signal
between multifunction switch and low tire pressure warn-
ing control unit

1. Check low tire pressure warning control unit power sup-

ply and ground circuit.

2. Check communication circuit between multifunction

switch and low tire pressure warning control unit.

3. If the results from the above checkup show no malfunc-

tion, replace either multifunction switch or low tire pres-
sure warning control unit, and then start self-diagnosis.

4. If self-diagnosis results still show any malfunction,

replace the other unit.

7

●

BOSE speaker amp. power supply and ground circuit
malfunction is detected

●

Malfunction is detected on communication signal
between audio unit and BOSE speaker amp.

1. Check BOSE speaker amp. power supply and ground

circuit.

2. Check communication circuit between audio unit and

BOSE speaker amp.

3. If the results from the above checkup show no malfunc-

tion, replace either audio unit or BOSE speaker amp.,
and then start self-diagnosis.

4. If self-diagnosis results still show any malfunction,

replace the other unit.

8

Audio unit power supply and ground circuit malfunction is
detected

1. Check audio unit power supply circuit.

2. If the results from the above checkup show no malfunc-

tion, replace audio unit.

AV-106

NAVIGATION SYSTEM

9

Without satellite radio

●

Malfunction is detected on communication signal [REQ
(CHG-AUDIO)] between audio unit and CD auto
changer

1. Check communication circuit [REQ (CHG-AUDIO)]

between audio unit and CD auto changer.

2. Check communication signal [REQ (CHG-AUDIO)]

between audio unit and CD auto changer.

3. If the results from the above checkup show no malfunc-

tion, replace either audio unit or CD auto changer, and
then start self-diagnosis.

4. If self-diagnosis results still show any malfunction,

replace the other unit.

With satellite radio

●

Malfunction is detected on communication signal [REQ
(CHG-AUDIO)] between audio unit and satellite radio
tuner

●

Malfunction is detected on control signal (CONT)
between audio unit and satellite radio tuner

●

Malfunction is detected on communication signal [REQ
(CHG-AUDIO)] between satellite radio tuner and CD
auto changer

1. Check communication circuit [REQ (CHG-AUDIO)]

between audio unit and satellite radio tuner.

2. Check control signal circuit (CONT) between audio unit

and satellite radio tuner.

3. Check communication circuit [REQ (CHG-AUDIO)]

between satellite radio tuner and CD auto changer.

4. Check communication signal [REQ (CHG-AUDIO)]

between audio unit and satellite radio tuner.

5. Check control signal (CONT) between audio unit and

satellite radio tuner.

6. Check communication signal [REQ (CHG-AUDIO)]

between satellite radio tuner and CD auto changer.

7. If the results from the above checkup show no malfunc-

tion, replace audio unit, satellite radio tuner, or CD auto
changer, and then start self-diagnosis.

8. If self-diagnosis results still show any malfunction,

replace one of the two units that is not replaced yet.

9. If self-diagnosis results still show any malfunction,

replace the other unit.

10

●

Satellite radio tuner power supply and ground circuit
malfunction is detected

●

CD auto changer power supply and ground circuit mal-
function is detected

●

Malfunction is detected on communication signal [REQ
(CHG-AUDIO), REQ (SAT-AUDIO), Tx and RX] between
audio unit and satellite radio tuner

●

Malfunction is detected on control signal (CONT)
between audio unit and satellite radio tuner

●

Malfunction is detected on communication signal [REQ
(CHG-AUDIO), Tx and Rx] between satellite radio tuner
and CD auto changer

1. Check satellite radio tuner power supply and ground cir-

cuit.

2. Check CD auto changer power supply and ground cir-

cuit.

3. Check communication circuit [REQ (CHG-AUDIO), REQ

(SAT-AUDIO), Tx and RX] between audio unit and satel-
lite radio tuner.

4. Check control signal circuit (CONT) between audio unit

and satellite radio tuner.

5. Check communication circuit [REQ (CHG-AUDIO), Tx

and Rx] between satellite radio tuner and CD auto
changer.

6. Check communication signal [REQ (CHG-AUDIO), REQ

(SAT-AUDIO), Tx and RX] between audio unit and satel-
lite radio tuner.

7. Check control signal (CONT) between audio unit and

satellite radio tuner.

8. Check communication signal [REQ (CHG-AUDIO), Tx

and Rx] between satellite radio tuner and CD auto
changer.

9. If the results from the above checkup show no malfunc-

tion, replace audio unit, satellite radio tuner, or CD auto
changer, and then start self-diagnosis.

10.If self-diagnosis results still show any malfunction,

replace one of the two units that is not replaced yet.

11.If self-diagnosis results still show any malfunction,

replace the other unit.

Diagnosis

No.

Possible cause

Action to take

NAVIGATION SYSTEM

AV-107

C

D

E

F

G

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L

M

A

B

AV

11

Malfunction is detected on communication signal [REQ
(SAT-AUDIO)] between audio unit and satellite radio tuner

1. Check communication circuit [REQ (SAT-AUDIO)]

between audio unit and satellite radio tuner.

2. Check communication signal [REQ (SAT-AUDIO)]

between audio unit and satellite radio tuner.

3. If the results from the above checkup show no malfunc-

tion, replace either audio unit or satellite radio tuner, and
then start self-diagnosis.

4. If self-diagnosis results still show any malfunction,

replace the other unit.

12

Voice activated control module power supply and ground
circuit malfunction is detected

1. Check voice activated control module power supply and

ground circuit.

2. If the results from the above checkup show no malfunc-

tion, replace voice activated control module.

13

●

TEL adapter unit power supply and ground circuit mal-
function is detected

●

Malfunction is detected on communication signal
between voice activated control module and TEL
adapter unit

1. Check TEL adapter unit power supply and ground cir-

cuit.

2. Check communication circuit between voice activated

control module and TEL adapter unit.

3. If the results from the above checkup show no malfunc-

tion, replace either voice activated control module or
TEL adapter unit, and then start self-diagnosis.

4. If self-diagnosis results still show any malfunction,

replace the other unit.

14

Malfunction is detected on communication signal between
AV and NAVI control unit and voice activated control mod-
ule

1. Check communication circuit between AV and NAVI con-

trol unit and voice activated control module.

2. If the results from the above checkup show no malfunc-

tion, replace either AV and NAVI control unit or voice
activated control module, and then start self-diagnosis.

3. If self-diagnosis results still show any malfunction,

replace the other unit.

Diagnosis

No.

Possible cause

Action to take

AV-108

NAVIGATION SYSTEM

Confirmation/Adjustment Mode

NKS001IZ

OPERATION PROCEDURE

1.

Start the engine.

2.

Turn the audio system OFF.

3.

While pressing the “INFO” button, turn the volume control dial
clockwise or counterclockwise for 30 clicks or more. (When the
self-diagnosis mode is started, a short beep will be heard.)

●

Shifting from current screen to previous screen is performed
by pressing “PREV” button.

4.

The initial trouble diagnosis screen will be shown, and items
“Self Diagnosis” and “Confirmation/Adjustment” will become
selective.

5.

Select “Confirmation/Adjustment”.

6.

Each diagnosis is shown by selecting each screen switch on
Confirmation/Adjustment screen.

SKIB7617E

SKIA0381E

SKIA0361E