Infiniti G35 (V35) Sedan. Manual — part 150
AV-372
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
U1243 DISPLAY UNIT
Is inspection result OK?
YES
>> GO TO 4.
NO
>> Replace AV control unit.
4.
CHECK COMMUNICATION SIGNAL
Check signal between display unit harness connector terminal 22 and ground.
Is inspection result OK?
YES
>> INSPECTION END
NO
>> Replace display unit.
11 - Ground
PKIB5039J
22 - Ground
PKIB5039J
AV
U1244 GPS ANTENNA
AV-373
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
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U1244 GPS ANTENNA
Description
INFOID:0000000000964832
DTC Logic
INFOID:0000000000964833
Diagnosis Procedure
INFOID:0000000000964834
1.
GPS ANTENNA CHECK
Visually check GPS antenna and antenna feeder.
Is inspection result OK?
YES
>> GO TO 2.
NO
>> Repair malfunctioning parts.
2.
CHECK AV CONTROL UNIT VOLTAGE
1.
Disconnect GPS antenna connector.
2.
Turn ignition switch ON.
3.
Check voltage between AV control unit terminal 110 and ground.
Is inspection result OK?
YES
>> INSPECTION END
NO
>> Replace AV control unit.
Part name
Description
GPS ANTENNA
GPS signal is received and sent to AV control unit.
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Possible causes
U1244
GPS ANETNNA CONN
[U1244]
GPS antenna connection malfunction is detected
GPS antenna disconnection
110 - Ground
: Approx. 5 V
AV-374
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
U124C CD CHANGER
U124C CD CHANGER
Description
INFOID:0000000000964835
DTC Logic
INFOID:0000000000964836
Diagnosis Procedure
INFOID:0000000000964837
1.
CHECK CD CHANGER POWER SUPPLY AND GROUND CIRCUIT
Check CD changer power supply and ground circuit. Refer to
Is inspection result OK?
YES
>> GO TO 2.
NO
>> Repair malfunctioning parts.
2.
CHECK CONTINUITY COMMUNICATION CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect CD changer connector and AV control unit connector.
3.
Check continuity between CD changer harness connector terminals 8, 9, 10 and AV control unit harness
connector terminals 76, 93, 77.
4.
Check continuity between CD changer harness connector terminals 8, 9, 10 and ground.
Is inspection result OK?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK REQUEST SIGNAL
1.
Connect CD changer connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between CD changer harness connector terminal 8 and ground.
Part name
Description
CD CHANGER
• Controlled by communication signal, request signal from AV control unit
• Audio signal from CD CHANGER is sent to AV control unit.
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Probable malfunction location
U124C
CD CHANGER[N-BUS]
[U124C]
• A malfunction is detected in CD changer power supply
and ground circuits
• Malfunction occurs in request signal circuit.(Between
CD changer and AV control unit)
• Malfunction occurs in communication signal circuit.(Be-
tween CD changer and AV control unit)
• Malfunction is detected in request signal or communica-
tion signal.
• CD changer power supply and
ground circuits
• Request signal circuit (Between CD
changer and AV control unit)
• Communication signal circuit (Be-
tween CD changer and AV control
unit)
8 - 76
: Continuity should exist.
9 - 93
: Continuity should exist.
10 - 77
: Continuity should exist.
8, 9, 10 - Ground
: Continuity should not exist.
AV
U124C CD CHANGER
AV-375
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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N
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O
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Is inspection result OK?
YES
>> GO TO 4.
NO
>> Replace CD changer.
4.
CHECK COMMUNICATION SIGNAL
Check signal between CD changer harness connector terminal 9 and ground.
Is inspection result OK?
YES
>> INSPECTION END
NO
>> Replace CD changer.
5.
CHECK COMMUNICATION SIGNAL
Check signal between CD changer harness connector terminal 10 and ground.
Is inspection result OK?
YES
>> INSPECTION END
NO
>> Replace AV control unit.
8 - Ground
SKIA9299J
9 - Ground
SKIA9300J
10 - Ground
SKIA9300J
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