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Infiniti FX35 / FX45. Manual - part 178

AV-166

< SERVICE INFORMATION >

TELEPHONE

Terminal and Reference Value for TEL Adapter Unit

INFOID:0000000001328793

Terminal

(Wire color)

Item

Signal

input/

output

Condition

Reference value

–

Ignition

switch

Operation

1 (W/L)

Ground

Battery power supply

Input

OFF

—

Battery voltage

2 (LG)

Ground

ACC power supply

Input

ACC

—

Battery voltage

3 (W)

Ground

Ignition signal

Input

—

Battery voltage

4 (B)

Ground

—

Approx. 0 V

—

Shield

—

7 (R)

8 (B)

MIC. signal

Input

Uttering in front of the micro-
phone while using the
hands-free phone system.

9 (P)

10 (L)

TEL voice signal

Output

Receiving the party's voice
while using the hands-free
phone system.

11 (L/W)

Ground

TEL ON signal

Output

While using handsfree
phone system.

Approx. 0 V

While not using handsfree
phone system.

Approx. 5 V

12 (LG)

Ground

Remote control A

Input

Press

switch

Approx. 0 V

Press SEEK UP switch

Approx. 1.7 V

Press VOL UP switch

Approx. 3.3 V

Except for above

Approx. 5 V

13 (GY)

Ground

Remote control B

Input

Press

switch

Approx. 0 V

Press SEEK DOWN switch

Approx. 1.7 V

Press VOL DOWN switch

Approx. 3.3 V

Except for above

Approx. 5 V

14 (SB)

Ground

Remote control
ground

—

Approx. 0 V

15 (PU)

Ground

Indicator signal

Output

Microphone indicator ON,
and lighting switch OFF

Approx. 1.3 V

Microphone indicator ON,
and lighting switch ON

Approx. 0.8 V

Microphone unit indicator
OFF

Approx. 12 V

PKIB5037J

SKIB3609E

TELEPHONE

AV-167

< SERVICE INFORMATION >

Self-Diagnosis Function

INFOID:0000000001328794

The followings are diagnosis functions performed by TEL adapter unit.
• Performs the unit self

−

diagnosis and antenna diagnosis, and informs results with the indicator and voice

guidance.

• Informs vehicle speed pulse count from the time of key switch ON with voice guidance, and enables to check

vehicle speed signal.

• Outputs voice giving to microphone with speaker, and enables to check microphone function.

OPERATION PROCEDURE

Start the engine.

Press and hold

switch for 5 seconds or more.

• This allows the indicator to blink concurrently with voice guidance outputs, and determines if there is any

current error in the state of blinking.

17 (R/W)

Ground

Remote control A

Output

Press

switch

Approx. 0 V

Press SEEK UP switch

Approx. 1.7 V

Press VOL UP switch

Approx. 3.3 V

Except for above

Approx. 5 V

18 (G/W)

Ground

Remote control B

Output

Press

switch

Approx. 0 V

Press SEEK DOWN switch

Approx. 1.7 V

Press VOL DOWN switch

Approx. 3.3 V

Except for above

Approx. 5 V

19 (B/Y)

Ground

Remote control
ground

—

Approx. 0 V

22 (B)

Ground

—

Approx. 0 V

23 (B)

Ground

—

Approx. 0 V

28 (G)

Ground

Vehicle
speed signal
(8-pulse)

Input

When vehicle speed is ap-
prox. 40 km/h (25 MPH)

29 (W)

Ground

MIC. VCC

Output

—

Approx. 5 V

41 —

TEL

signal

—

Terminal

(Wire color)

Item

Signal

input/

output

Condition

Reference value

–

Ignition

switch

Operation

SKIA6649J

SKIB7570E

AV-168

< SERVICE INFORMATION >

TELEPHONE

• When the indicator does not blink, check the microphone power supply circuit, and then repair malfunc-

tioning part.

Press both

and

switch simultaneously while voice guid-

ance outputs.

Press

and

switch simultaneously while beep sound out-

puts.

CAUTION:

Turn ignition switch OFF and return to Step 1 again if beep
sound does not output. Replace TEL adapter unit if beep
sound still does not output.

Perform the followings.

• Check how many times indicator flashes within 5 seconds after pressing

and

switch.

• Inform the malfunction and vehicle speed pulse from the time of ignition switch ON with voice.

NOTE:
Vehicle speed pulse is reset to 0 when turning ignition switch OFF.

Beep sounds (while 1 second) outputs 3 seconds after voice guidance of microphone check.

Voice giving to microphone outputs from speaker. Microphone function can be checked.

Diagnosis mode exits after a beep sounds.

Basic Inspection of Hands-Free Phone

INFOID:0000000001328795

Check the parts or circuit listed below when the hands-free phone system is inoperative at all or a communica-
tion error exists between TEL and TEL adopter unit.
• TEL
• TEL adapter unit power supply circuit

CHECK INDICATOR OPERATION

SKIB7572E

SKIB7571E

Number of indicator flashes

Voice guidance

Malfunction

Possible solution

Internal failure

TEL adapter unit is malfunctioning

Replace TEL adapter unit

Bluetooth antenna open

TEL antenna feeder is open

Replace TEL antenna

Bluetooth antenna shorted

TEL antenna feeder is short

TELEPHONE

AV-169

< SERVICE INFORMATION >

Turn ignition switch ACC.

Check the indicator is blinking.

OK or NG

>> GO TO 2

>> Check indicator circuit and MIC. circuit.

CHECK AUDIO STEERING WHEEL SWITCH OPERATION

Press the

switch.

Check the indicator is blinking.

OK or NG

>> INSPECTION END

>> Check audio steering wheel switch circuit.

Audio Steering Wheel Switch Does Not Operate

INFOID:0000000001328796

CHECK HARNESS

Turn ignition switch OFF.

Disconnect A/C and AV switch and TEL adapter unit connectors.

Check continuity between A/C and AV switch harness connector
(A) M64 terminals 12, 13, 14 and teladapter unit harness con-
nector (B) M102 terminals 17, 18, 19.

Check continuity between A/C and AV switch and ground.

OK or NG

>> GO TO 2.

>> Repair harness or connector.

CHECK HARNESS

Disconnect spiral cable connector.

Check continuity between TEL adapter unit harness connector
(A) M102 terminals 12, 13, 14 and spiral cable harness connec-
tor (B) M15 terminals 24, 32, 31.

Check continuity between TEL adapter unit and ground.

OK or NG

>> GO TO 3.

>> Repair harness or connector.

CHECK SPIRAL CABLE

Disconnect spiral cable connector (Audio steering wheel switch harness side).

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