Infiniti G37 Coupe. Manual — part 87
AV
SATELLITE RADIO TUNER
AV-101
< ECU DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
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JCNWA0460GB
AV-102
< ECU DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
SATELLITE RADIO TUNER
NOTE:
The name MULTIFUNCTION SWITCH indicates the integration of PRESET SWITCH and MULTIFUNCTION
SWITCH virtually.
JCNWA0461GB
AV
MULTI AV SYSTEM SYMPTOMS
AV-103
< SYMPTOM DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
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SYMPTOM DIAGNOSIS
MULTI AV SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000001559189
OPERATION
RELATED TO RGB IMAGE
Trouble diagnosis chart by symptom
RELATED TO AUDIO
Trouble diagnosis chart by symptom
Symptoms
Check items
Possible malfunction location / Action to take
Multifunction switch and preset
switch operation does not work.
• All switches cannot be operated.
• “MULTI AV” is displayed with CON-
SULT-III.
• Multifunction switch power supply and ground circuit.
• AV communication circuits between AV control unit
and multifunction switch.
Perform CONSULT-III self-diagnosis.Refer to
"CONSULT - III Function (MULTI AV)"
.
• All switches cannot be operated.
• “MULTI AV” is not displayed on sys-
tem selection screen the CONSULT-
III is initialized.
AV control unit power supply and ground circuit mal-
function. Refer to
AV-39, "AV CONTROL UNIT : Diag-
Only specified switch cannot be oper-
ated.
Multifunction switch or preset switch malfunction. Per-
form multifunction switch and preset switch self-diagno-
sis function. Refer to
Symptoms
Check items
Possible malfunction location / Action to take
RGB image is not shown.
There is malfunction in the CONSULT-
III self-diagnosis result.
Perform CONSULT-III self-diagnosis.
Refer to
AV-26, "CONSULT - III Function (MULTI AV)"
.
There is no malfunction in CONSULT-III
self-diagnosis results.
• Display unit power supply circuit.
AV-39, "DISPLAY UNIT : Diagnosis Proce-
• Vertical synchronizing (VP) signal circuit.
.
Color of RGB image is not
proper.
Light blue (Cyan) tint.
RGB signal (R: red) circuit.
Refer to
.
Purple (Magenta) tint.
RGB signal (G: green) circuit.
Refer to
.
Screen looks yellowish.
RGB signal (B: blue) circuit.
Refer to
.
RGB screen is rolling.
—
RGB synchronizing signal circuit.
Refer to
.
Fuel economy display is mal-
functioning.
There is malfunction in the CONSULT-
III self-diagnosis result.
Perform CONSULT-III self-diagnosis.
Refer to
AV-26, "CONSULT - III Function (MULTI AV)"
.
There is no malfunction in CONSULT-III
self-diagnosis results.
Ignition signal circuit malfunction.
Refer to
AV-39, "AV CONTROL UNIT : Diagnosis Proce-
Symptoms
Check items
Possible malfunction location / Action to take
The CD cannot be removed.
—
CD eject signal circuit. Refer to
.
Audio sound is not heard.
No sound from all speakers.
AV control unit Refer to
.
Sound is not heard only from the specif-
ic places (RH front, RH rear, LH front
and LH rear).
Sound signal circuit of malfunctioning system.
AV-104
< SYMPTOM DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
MULTI AV SYSTEM SYMPTOMS
RELATED TO STEERING SWITCH
Trouble diagnosis chart by symptom
RELATED TO AUXILIARY INPUT
NOTE:
Check that there is no malfunction of AUX equipment main body before performing a diagnosis.
Trouble diagnosis chart by symptom
Satellite radio is not received.
“ANTENNA” is not displayed even when
the channel is turned to 0 in Satellite ra-
dio mode.
Perform the following inspection procedure.
1.
Check satellite radio antenna mounting nut for
looseness.
NOTE:
Tightening torque: 6.5 N·m (0.66 kg-m, 58 in-lb.)
2.
Visually check for satellite radio antenna feeder.
3.
Replace the satellite radio antenna.
Refer to
4.
Replace the satellite radio tuner.
Refer to
“ANTENNA” is displayed when the
channel is turned to 0 in Satellite radio
mode.
Perform the following inspection procedure.
1.
Check the connection between Satellite radio tun-
er and antenna feeder.
2.
Check the connection between Satellite radio an-
tenna and antenna feeder.
3.
Check Antenna feeder for open circuit.
4.
Replace the satellite radio antenna.
Refer to
.
5.
Replace the satellite radio tuner.
Refer to
The sound of Satellite radio is
not heard.
Other audio sounds are normal.
Satellite radio sound signal circuit malfunction between
satellite radio tuner and AV control unit.
It does not change to Satellite
radio mode.
There is malfunction in the CONSULT-
III self-diagnosis result.
Perform CONSULT-III self-diagnosis.
Refer to
AV-26, "CONSULT - III Function (MULTI AV)"
AM/FM radio is not received.
Other audio sounds are normal.
• Antenna amp. ON signal circuit.
• Antenna feeder.
Symptoms
Inspection location / Probable malfunction location
None of the steering switch operations work.
Steering switch signal GND circuit.
Refer to
.
Only specified switch (1) cannot be operated.
.
“SOURCE”, “MENU UP”, “MENU DOWN” switches of
steering switch are not operated.
Steering switch signal A circuit.
Refer to
.
”VOL UP“, “VOL DOWN” switches of steering switch are not
operated.
Steering switch signal B circuit.
Refer to
.
Symptoms
Check items
Possible malfunction location / Action to take
Symptoms
Check items
Probable malfunction location
No voice sound is heard when
AUX mode is selected.
Voice sound is heard when other modes
are selected.
AUX sound signal circuits malfunction between auxilia-
ry input jacks and AV control unit.
Image is not displayed when
AUX mode is selected.
—
• AUX image signal circuit malfunction between auxil-
iary input jacks and AV control unit.
Refer to
.
• Horizontal synchronizing (HP) signal circuit malfunc-
tion between AV control unit and display unit.
Refer to
.
• RGB area (YS) signal circuit malfunction between AV
control unit and display unit.
Refer to
.
It does not change from AUX
mode to other modes.
—
Vertical synchronizing (VP) signal circuit malfunction
between AV control unit and display unit.
Refer to
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