Nissan X-Trail 32. Manual — part 11
AV-36
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
VEHICLE SPEED SIGNAL CIRCUIT
VEHICLE SPEED SIGNAL CIRCUIT
Component Function Check
INFOID:0000000010714761
1.
VEHICLE SPEED FUNCTION
1.
Turn ignition switch ON.
2.
Check the voltage between audio unit harness connector and ground.
CAUTION:
Always drive safely.
Is inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000010714762
NOTE:
• The auto ACC function allows the accessory power supply for a certain period of time even after ignition
switch OFF. For this reason, when performing diagnosis, turn the ignition switch OFF and wait for 3 minutes
with the driver's door opened.
• The operation of the vehicle during standby may cause an accessory power supply.
1.
CHECK VEHICLE SPEED SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect audio unit harness connector and combination meter harness connector.
3.
Check continuity between audio unit harness connector and combination meter harness connector.
4.
Check continuity between audio unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK DTC WITH “METER/M&A”
Terminals
Condition
Reference value
(Approx.)
(+)
(
−
)
Audio unit
Connector
Terminal
M46
18
Ground
Speedometer operated
[When vehicle speed is
approx. 40 km/h (25
MPH)]
NOTE:
The maximum voltage varies de-
pending on the specification (desti-
nation unit).
JSNIA0012GB
Audio unit
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
M46
18
M34
38
Existed
Audio unit
Ground
Continuity
Connector
Terminal
M46
18
Not existed
AV
VEHICLE SPEED SIGNAL CIRCUIT
AV-37
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Perform “Self Diagnostic Result” of “METER/M&A” with CONSULT. Refer to
Is any DTC detected?
YES
>> Repair or replace malfunctioning parts.
NO
>> Replace combination meter. Refer to
AV-38
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
MICROPHONE SIGNAL CIRCUIT
MICROPHONE SIGNAL CIRCUIT
Description
INFOID:0000000010957773
Audio unit supplies power to microphone. The microphone transmits the sound voice to the audio unit.
Diagnosis Procedure
INFOID:0000000010957774
NOTE:
• The auto ACC function allows the accessory power supply for a certain period of time even after ignition
switch OFF. For this reason, when performing diagnosis, turn the ignition switch OFF and wait for 3 minutes
with the driver's door opened.
• The operation of the vehicle during standby may cause an accessory power supply.
1.
CHECK CONTINUITY BETWEEN AUDIO UNIT AND MICROPHONE CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect audio unit harness connector and microphone harness connector.
3.
Check the continuity between audio unit harness connector and microphone harness connector.
4.
Check continuity between audio unit harness connector and ground.
Is inspection result OK?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VOLTAGE MICROPHONE VCC
1.
Connect audio unit harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between audio unit harness connector and ground.
Is inspection result OK?
YES
>> GO TO 3.
NO
>> Replace audio unit. Refer to
AV-51, "Removal and Installation"
.
3.
CHECK MICROPHONE SIGNAL
1.
Turn ignition switch OFF.
2.
Connect microphone harness connector.
3.
Turn ignition switch ON.
4.
Check the signal between audio unit harness connector.
Audio unit
Microphone
Continuity
Connector
Terminal
Connector
Terminal
M47
37
R21
1
Existed
21
4
38
2
audio unit
Ground
Continuity
Connector
Terminal
M47
37
Not existed
21
(+)
(–)
Standard
Voltage
(Approx.)
Audio unit
Connector
Terminal
M47
21
Ground
—
5.0 V
AV
MICROPHONE SIGNAL CIRCUIT
AV-39
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Is inspection result OK?
YES
>> Replace audio unit. Refer to
AV-51, "Removal and Installation"
.
NO
>> Replace microphone. Refer to
AV-56, "Removal and Installation"
.
Audio unit
Condition
Standard
Reference value
(+)
(–)
Connector
Terminal
Connector
Terminal
M47
37
M47
38
Give a
voice.
The value between the
maximum input voltage
and the minimum input
voltage is 4.72V or
less.
PKIB5037J
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