Page 100 of 116

AV-100
TELEPHONE
Revision: 2006 November2007 350Z
TELEPHONEPFP:28342
System DescriptionNKS0056C
HANDS-FREE PHONE SYSTEM
For Hands-free phone system operation information, refer to Owner's Manual.
TEL adapter unit has Bluetooth® module. It can perform wireless hands-free telephone calls using a cel-
lular phone in vehicle compartment.
5 or less cellular phones can be registered into the TEL adapter unit.
Hands-free phone mode starts by transmitting steering switch signal to TEL adapter unit when pressing
button.
Hands-free phone mode ends by transmitting steering switch signal to TEL adapter unit when pressing
button.
When uttering to the TEL microphone, TEL microphone signal (audio signal) is transmitted from the TEL
microphone to the TEL adapter unit and transmitted to the cellular phone with the Bluetooth
® communi-
cation.
Audio signals from a party at the other end are transmitted from the cellular phone to the TEL adapter unit
with the Bluetooth
® communication, and transmitted from the TEL adapter unit to the audio unit, then the
party's voice is output from the front door speaker.
Audio unit switches the voice from front speaker RH to TEL voice when receiving TEL ON signal from TEL
adapter unit.
SKIB9036E
Page 111 of 116

TELEPHONE
AV-111
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2006 November2007 350ZSelf-Diagnosis FunctionNKS0056J
During on board diagnosis the diagnosis function of TEL adapter unit starts with the operation of the steer-
ing switch and performs the diagnosis when ignition switch ACC.
The on board diagnosis has 3 modes: the self-diagnosis mode that performs the trouble diagnosis, the
speaker adaptation data deleting mode and the hands free phone system initialization mode.
NOTE:
Perform the diagnosis with the vehicle stopped.
Perform STEP 2 if necessary.
18 (OR) 19 (GR)Remote control signal
BOutput ONPress and hold switchApprox. 0 V (Audio mode)
Approx. 5 V (TEL mode)
Press and hold SEEK
DOWN switchApprox. 1.7 V
Press and hold VOLUME
DOWN switchApprox. 3.3 V
Except for above Approx. 5 V
19 (GR) GroundRemote control signal
ground— ON — Approx. 0 V
20 (B) Ground Control signal 1 — ON — Approx. 0 V
22 (B) Ground Control signal 3 — ON — Approx. 0 V
23 (B) Ground Control signal 4 — ON — Approx. 0 V
28 (W) GroundVehicle speed signal
(2-pulse)Input ONWhen vehicle speed is
approx. 40 km/h (25 MPH)NOTE:
Maximum voltage may be 12 V
due to specifications (connected
units).
29 (W) Ground TEL Microphone VCC Output ON — Approx. 5 V
33 — TEL antenna signal Input ONNot connected to Blue-
tooth
® antenna connectorApprox. 3 V Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
ELF1080D
STEP Mode Contents
STEP 1 Self-diagnosisThe self-diagnosis mode perform the following.
Diagnosis of TEL adapter unit, Bluetooth antenna and steering switch.
Vehicle speed pulse count.
Microphone test.
Then reads out the results with the sound.
STEP 2Speaker adaptation data deletingThe speaker adaptation data deleting mode can delete the speaker adapta-
tion data.
Hands free phone system initializationHands free phone system initialization mode can perform the initialization
of hands free phone system.
Page 113 of 116

TELEPHONE
AV-113
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2006 November2007 350Z
ERROR ITEM (ERROR NAME)
Error Count
Error count is read out simultaneously when reading out the error name.
The errors are read out continuously when some errors occur at the same time.
The error count guides “0” when the error occurs. The next time it counts up “1” if it is normal with the igni-
tion switch ON.
It continues the count up unless the initialization of hands free phone system is performed.
VEHICLE SPEED SIGNAL
Check the input status of the vehicle speed pulse count after ignition switch turns ON.
The guidance announces the type of error name and then the vehicle speed pulse count.
MICROPHONE TEST
Input the voice spoken into the microphone to the speaker, and checks the microphone function.
Error name Detection condition Trouble-shooting method
There are no failure records to
reportSystem is normal —
Internal error Error inside TEL adapter unit Replace TEL adapter unit.
Bluetooth
® antenna open Open in the Bluetooth® antenna is detectedCheck the Bluetooth® antenna feeder for
open.
Bluetooth
® antenna short Short in the Bluetooth® antenna is detected Check the Bluetooth® antenna feeder for
short.
Bluetooth
® antenna unplugged Disconnected Bluetooth® antenna Check the connection Bluetooth® antenna.
Phone button stuck
Stuck switch
Check the steering switch.
Refer to AV-115, "
Component Inspection" .
Phone end button stuck
Stuck switch
Page 114 of 116

AV-114
TELEPHONE
Revision: 2006 November2007 350Z
Symptom ChartNKS0056K
Indicator
statusSymptom Check item Diagnosis procedure
ON
(Normal)Voice is not heard on the
other end.—
Check the TEL microphone signal circuit
between TEL adapter unit to the TEL
microphone.
Check the TEL microphone power sup-
ply circuit between TEL adapter unit to
the microphone.
Voice guidance does not
activate, or the volume of
voice guidance is too low
when pressing switch.
(“PHONE” is indicated on
LCD screen of the audio
unit)—Check TEL voice signal circuit between
TEL adapter unit to the audio unit.
Voice guidance does not
activate, when pressing
switch. (“PHONE” is not indi-
cated on LCD screen of the
audio unit)Dial the cellular phone. The front speaker
RH outputs a dial tone.1. Check “VOLUME UP” and “SEEK UP”
switches function.
2. Replace steering switch, if “VOLUME
UP” and “SEEK UP” switches function is
normal. If not, go to 3.
3. Check if remote control signal A circuit
between steering switch and TEL
adapter unit is not open or short.
4. Check voltage of remote control signal A
between steering switch and TEL
adapter unit when operating steering
switch.
Dial the cellular phone. The front speaker
RH does not outputs a dial tone.1. Check TEL ON signal circuit. Go to the
next step if normal.
2. Disconnect TEL adapter unit connector.
Measure audio unit #28 terminal volt-
age. Replace TEL adapter unit if the
voltage approx. 5 V. Replace audio unit
if the voltage approx. 0 V.
None of the steering switch
operations work.—
Check control signal 1circuit.
Check steering switch signal ground cir-
cuit.
OFFBluetooth
® communication
does not perform.The indicator blinks for approx. 5 sec.
when pressing switch.Perform the error history mode with self-
diagnosis. Refer to AV- 111 , "
Self-Diagno-
sis Function" .
The indicator continue turning OFF when
pressing switch.Check TEL adapter unit power supply, and
ground circuit.