Nissan Xterra. Instruction — part 42
AV-160
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION]
U1229 AV CONTROL UNIT
U1229 AV CONTROL UNIT
DTC Logic
INFOID:0000000009485278
DTC DETECTION LOGIC
CONSULT Display
DTC Detection Condition
Possible Cause
iPod CERTIFICATION
[U1229]
iPod authentication chip error.
Replace AV control unit if malfunction occurs
constantly.
Refer to
AV
U122F AV CONTROL UNIT
AV-161
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
U122F AV CONTROL UNIT
DTC Logic
INFOID:0000000009485279
DTC DETECTION LOGIC
CONSULT Display
DTC Detection Condition
Possible Cause
Digital broadcasting connection
error
[U122F]
Communication error with digital audio broadcast
module internal to AV control unit.
Replace AV control unit if malfunction occurs
constantly.
Refer to
AV-218, "Removal and Installation"
.
AV-162
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION]
U1244 GPS ANTENNA
U1244 GPS ANTENNA
DTC Logic
INFOID:0000000009485280
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000009485281
Regarding Wiring Diagram information, refer to
.
1.
GPS ANTENNA INSPECTION
Visually inspect the GPS antenna and antenna feeder. Refer to
.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning components.
2.
CHECK AV CONTROL UNIT VOLTAGE
1. Disconnect AV control unit connector M99.
2. Turn ignition switch ON.
3. Check voltage between AV control unit connector M99 and ground.
Is inspection result normal?
YES
>> Replace GPS antenna.
NO
>> Replace AV control unit. Refer to
AV-218, "Removal and Installation"
.
CONSULT Display
DTC Detection Condition
Possible Cause
GPS ANTENNA CONN
[U1244]
Open or short to ground is detected in GPS an-
tenna connection.
• GPS antenna disconnection.
• Open or short to ground in GPS antenna signal
circuit.
AV control unit
Ground
Voltage
Connector
Terminal
M99
50
—
5.0 V
AV
U1258 SATELLITE RADIO ANTENNA
AV-163
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
U1258 SATELLITE RADIO ANTENNA
DTC Logic
INFOID:0000000009485282
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000009485283
Regarding Wiring Diagram information, refer to
.
1.
SATELLITE ANTENNA INSPECTION
Visually inspect the satellite antenna and antenna feeder. Refer to
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning components.
2.
CHECK AV CONTROL UNIT VOLTAGE
1. Disconnect AV control unit connector M100.
2. Turn ignition switch ON.
3. Check voltage between AV control unit connector M100 and ground.
Is inspection result normal?
YES
>> Replace satellite radio antenna. Refer to
AV-230, "Removal and Installation"
NO
>> Replace AV control unit. Refer to
AV-218, "Removal and Installation"
.
CONSULT Display
DTC Detection Condition
Possible Cause
XM ANTENNA CONN
[U1258]
Open or short to ground is detected in satellite
antenna connection.
• Satellite antenna disconnection.
• Open or short to ground in satellite antenna
signal circuit.
AV control unit
Ground
Voltage
Connector
Terminal
M100
58
—
5.0 V
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