Nissan Tiida C11. Manual — part 21
AV-78
< COMPONENT DIAGNOSIS >
[AUDIO WITH NAVIGATION]
U1244 GPS ANTENNA
U1244 GPS ANTENNA
Description
INFOID:0000000001728716
DTC Logic
INFOID:0000000001728717
Diagnosis Procedure
INFOID:0000000001728718
1.
CHECK GPS ANTENNA
Visually check GPS antenna and antenna feeder.
Is inspection result OK?
YES
>> GO TO 2.
NO
>> Repair malfunctioning parts.
2.
CHECK NAVI CONTROL UNIT VOLTAGE
1.
Disconnect GPS antenna connector.
2.
Turn ignition switch ON.
3.
Check voltage between NAVI control unit terminal 73 and ground.
Is inspection result OK?
YES
>> INSPECTION END
NO
>> Replace NAVI control unit.
Part name
Description
GPS ANTENNA
GPS signal is received and sent to NAVI control unit.
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Possible causes
U1244
GPS ANTENNA CONN
[U1244]
GPS antenna connection malfunction is detected.
GPS antenna disconnection
73 - Ground
: Approx. 5 V
AV
U1300 AV COMM CIRCUIT
AV-79
< COMPONENT DIAGNOSIS >
[AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
U1300 AV COMM CIRCUIT
Description
INFOID:0000000001728722
U1300 is indicated when malfunction occurs in communication signal of multi AV system. It is indicated simul-
taneously, without fail, with the malfunction of control units connected to NAVI control unit with communication
line. It determines the possible malfunction cause from the table below.
SELF-DIAGNOSIS RESULTS DISPLAY ITEM
DTC
Display contents of
CONSULT-III
Description
Possible malfunction factor/Action to
take
U1300
U1240
U1249
U124E
U124F
• AV COMM CIRCUIT
[U1300]
• SWITCH CONN
[U1240]
• AUDIO H/U CONN
[U1249]
• AMP CONN [U124E]
• RDS CONN [U124F]
• Audio unit power supply and ground circuit malfunction
is detected.
• Malfunction occurs in AV communication circuit be-
tween NAVI control unit and audio unit.
• Malfunction is detected in AV communication signal be-
tween NAVI control unit and audio unit.
• Audio unit power supply and
• AV communication circuit between
NAVI control unit and audio unit
AV-80
< COMPONENT DIAGNOSIS >
[AUDIO WITH NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure
INFOID:0000000001728724
1.
CHECK FUSE
Check for blown fuses.
Is inspection result OK?
YES
>> GO TO 2
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connectors and ground.
Is inspection result OK?
YES
>> GO TO 3
NO
>> Check harness between AV control unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connectors.
3.
Check continuity between AV control unit harness connector and ground.
Is inspection result OK?
YES
>> INSPECTION END.
NO
>> Repair harness or connector.
NAVI CONTROL UNIT
NAVI CONTROL UNIT : Diagnosis Procedure
INFOID:0000000001728723
1.
CHECK FUSE
Check for blown fuses.
Is inspection result OK?
YES
>> GO TO 2
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between NAVI control unit harness connectors and ground.
Power source
Fuse No.
Battery
27
Ignition switch ACC or ON
6
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
M44
19
OFF
12V
ACC power supply
M44
7
ACC
12V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M44
21
OFF
Continuity should exist.
Power source
Fuse No.
Battery
27
Ignition switch ACC or ON
6
Ignition switch ON or START
2
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-81
< COMPONENT DIAGNOSIS >
[AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is inspection result OK?
YES
>> GO TO 3
NO
>> Check harness between NAVI control unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect NAVI control unit connectors.
3.
Check continuity between NAVI control unit harness connector and ground.
Is inspection result OK?
YES
>> INSPECTION END.
NO
>> Repair harness or connector.
DISPLAY UNIT
DISPLAY UNIT : Diagnosis Procedure
INFOID:0000000001728725
1.
CHECK FUSE
Check for blown fuses.
Is inspection result OK?
YES
>> GO TO 2
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between display unit harness connectors and ground.
Is inspection result OK?
YES
>> GO TO 3
NO
>> Check harness between display unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector.
3.
Check continuity between display unit harness connector and ground.
Is inspection result OK?
YES
>> INSPECTION END.
NO
>> Repair harness or connector.
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
B69
2
OFF
12V
ACC power supply
B69
5
ACC
12V
Ignition signal
B68
63
ON
12V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
B69
1
OFF
Continuity should exist.
Power source
Fuse No.
Battery
27
Ignition switch ACC or ON
6
Signal name
Connector No.
Terminal No.
Ignition switch position
Value (Approx.)
Battery power supply
M100
21
OFF
12V
ACC power supply
M100
20
ACC
12V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M100
23
OFF
Continuity should exist.
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