Infiniti G37 Coupe. Manual - part 163
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-405
< FUNCTION DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
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J
K
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B
A
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DATA MONITOR
ALL SIGNALS
• Displays the status of the following vehicle signals inputted into the AV control unit.
• For each signal, actual signal can be compared with the condition recognized on the system.
GPS COMM [U1204]
GPS malfunction is detected.
An intermittent error caused by strong radio
interference may be detected unless any
symptom (GPS reception error, etc.) oc-
curs.
Replace the AV control unit if the malfunc-
tion occurs constantly.
GPS ROM [U1205]
GPS RAM [U1206]
GPS RTC [U1207]
FRONT DISP CONN [U1243]
• Display unit power supply and ground
circuits malfunction is detected.
• Malfunction is detected in communica-
tion circuits between AV control unit and
display unit.
• Malfunction is detected in communica-
tion signal between AV control unit and
display unit.
• Display unit power supply and ground
circuits.
• Communication circuits between AV con-
trol unit and AV display unit.
GPS ANTENNA CONN [U1244]
GPS antenna connection malfunction is de-
tected.
GPS antenna.
CAMERA CONT CONN [U1250]
Malfunction is detected in camera connec-
tion recognition circuit between AV control
unit and camera control unit.
Camera-connection recognition circuit be-
tween AV control unit and camera control
unit.
XM ANTENNA CONN [U1258]
Poor connection is detected in satellite ra-
dio antenna.
• Satellite radio antenna feeder.
• Satellite radio antenna.
• AV COMM CIRCUIT [U1300]
• INTERNAL COMM [U121F]
• AV control unit power supply and ground
circuits.
• AV control unit malfunction is detected.
AV control unit power supply and ground
circuits.
• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• Multifunction switch power supply and
ground circuits malfunction is detected.
• Malfunction is detected in AV communi-
cation circuits between AV control unit
and multifunction switch.
• Malfunction is detected in AV communi-
cation signal between AV control unit and
multifunction switch.
• Multifunction switch power supply and
ground circuits.
• AV communication circuit between AV
control unit and multifunction switch.
• AV COMM CIRCUIT [U1300]
• REAR CAMERA LAN CONN [U1252]
• Camera control unit power supply and
ground circuits malfunction is detected.
• Malfunction is detected in AV communi-
cation signal between AV control unit and
camera control unit.
Camera control unit power supply and
ground circuits.
• AV COMM CIRCUIT [U1300]
• IPod CONN [U1254]
• iPod adapter power supply and ground
circuits malfunction is detected
• Malfunction is detected in AV communi-
cation circuits between camera control
unit and iPod adapter
• Malfunction is detected in AV communi-
cation signal between AV control unit and
iPod adapter
• iPod adapter power supply and ground
circuits
• AV communication circuits between cam-
era control unit and iPod adapter
• AV COMM CIRCUIT [U1300]
• REAR CAMERA LAN CONN [U1252]
• IPod CONN [U1254]
Malfunction is detected in AV communica-
tion circuits between camera control unit
and the junction of AV control unit and mul-
tifunction switch.
AV communication circuits between cam-
era control unit and the junction of AV con-
trol unit and multifunction switch.
• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• REAR CAMERA LAN CONN [U1252]
• IPod CONN [U1254]
Malfunction is detected in AV communica-
tion circuits between AV control unit and the
junction of camera control unit and multi-
function switch.
AV communication circuits between AV
control unit and the junction of camera con-
trol unit and multifunction switch.
Error item
Description
Possible malfunction factor/Action to take