Nissan Note E12. Instruction — part 38
AV-144
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION]
U1264 ANTENNA AMP.
U1264 ANTENNA AMP.
DTC Logic
INFOID:0000000009460283
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000009460284
Regarding Wiring Diagram information, refer to
.
1.
ANTENNA AMP. INSPECTION
Visually inspect the antenna base (antenna amp.) and antenna feeder. Refer to
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning components.
2.
CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND ANTENNA BASE
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M73 and antenna base connector M351.
3. Check continuity between AV control unit connector M73 and antenna base connector M351.
4. Check continuity between AV control unit connector M73 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
3.
CHECK AV CONTROL UNIT VOLTAGE
1. Connect AV control unit connector M73.
2. Turn ignition switch ON.
3. Check voltage between AV control unit connector M73 and ground.
Is the inspection result normal?
YES
>> Replace antenna base. Refer to
AV-187, "Removal and Installation"
.
NO
>> Replace AV control unit. Refer to
AV-178, "Removal and Installation"
.
CONSULT Display
DTC Detection Condition
Possible Cause
ANTENNA AMP TERMINAL
[U1264]
Open or short to ground is detected in Antenna
amp. connection.
• Antenna amp. disconnection.
• Open or short to ground in antenna amp. ON
signal circuit.
AV control unit
Antenna base
Continuity
Connector
Terminal
Connector
Terminal
M73
58
M351
1
Yes
AV control unit
Ground
Continuity
Connector
Terminal
M73
58
—
No
AV control unit
Ground
Voltage
(Approx.)
(+)
(–)
Connector
Terminal
M73
58
—
Battery voltage
AV
U12AA CONFIGURATION ERROR
AV-145
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
U12AA CONFIGURATION ERROR
DTC Logic
INFOID:0000000009460285
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000009460286
1.
PERFORM CONFIGURATION
When U12AA is detected, configuration data must be written.
>> Write configuration data with CONSULT. Refer to
AV-135, "CONFIGURATION (AV CONTROL
CONSULT Display
DTC Detection Condition
Possible Cause
Configuration Error
[U12AA]
AV control unit is not properly configured or con-
figuration is corrupt.
Configuration data needs to be written.
Refer to
AV-146
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION]
U12AC AV CONTROL UNIT
U12AC AV CONTROL UNIT
DTC Logic
INFOID:0000000009460287
DTC DETECTION LOGIC
CONSULT Display
DTC Detection Condition
Possible Cause
Display Temperature too High
[U12AC]
Display temperature has exceeded maximum
temperature. Display is switched OFF to avoid ir-
reversible damage.
Replace AV control unit if malfunction occurs
constantly.
Refer to
AV-178, "Removal and Installation"
.
AV
U12AD AV CONTROL UNIT
AV-147
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
U12AD AV CONTROL UNIT
DTC Logic
INFOID:0000000009460288
DTC DETECTION LOGIC
CONSULT Display
DTC Detection Condition
Possible Cause
ECU Temperature too High
[U12AD]
AV control unit temperature has exceeded maxi-
mum temperature.
Replace AV control unit if malfunction occurs
constantly.
Refer to
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