Nissan Sentra. Manual — part 922
WCS
POWER SUPPLY AND GROUND CIRCUIT
WCS-25
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
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K
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M
B
A
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DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
INFOID:0000000010289405
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES
Check that the following fuses are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
POWER SUPPLY CIRCUIT CHECK
Check voltage between combination meter harness connector M24 terminals 15, 27, 28 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between combination meter harness connector M24 terminals 21, 22, 23 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connector.
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis
Procedure
INFOID:0000000010309901
Unit
Power source
Fuse No.
Combination meter
Battery 8
Ignition switch ON or ACC
18
Ignition switch ON or START
3
Terminals
Ignition switch position
(+)
(–)
OFF
ACC
ON
START
Connector
Terminal
M24
27
Ground
Battery voltage
Battery voltage
Battery voltage
Battery voltage
15
0V
Battery voltage
Battery voltage
0V
28
0V
0V
Battery voltage
Battery voltage
Combination meter
Ground
Continuity
Connector
Terminal
M24
21
Yes
22
23
WCS-26
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connector M85.
2. Check voltage between BCM connector M85 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M85 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair harness or connector.
BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM) : Diag-
nosis Procedure
INFOID:0000000010289407
Regarding Wiring Diagram information, refer to
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
Terminal No.
Signal name
Fuses and fusible link No.
88
Battery power supply
12 (10A)
90
G (40A)
BCM
Ground
Voltage
Connector
Terminal
M85
88
—
Battery voltage
90
BCM
Ground
Continuity
Connector
Terminal
M85
93
—
Yes
Terminal No.
Signal name
Fuses and fusible link No.
63
Battery power supply
12 (10A)
70
G (40A)
11
Ignition switch ACC or ON
18 (10A)
WCS
POWER SUPPLY AND GROUND CIRCUIT
WCS-27
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair harness or connector.
BCM
Ground
Ignition switch position
Connector
Terminal
OFF
ACC
ON
M20
63
Battery voltage
Battery voltage
Battery voltage
70
M21
11
—
0 V
Battery voltage
Battery voltage
BCM
Ground
Continuity
Connector
Terminal
M20
65
—
Yes
WCS-28
< DTC/CIRCUIT DIAGNOSIS >
METER BUZZER CIRCUIT
METER BUZZER CIRCUIT
Description
INFOID:0000000009759244
• The buzzer for warning chime system is installed in the combination meter.
• The combination meter sounds the alarm buzzer based on the signals transmitted from various units.
Component Function Check
INFOID:0000000009759245
1.
CHECK OPERATION OF METER BUZZER
1. Select BUZZER of BCM on CONSULT.
2. Perform LIGHT WARN ALM of Active Test.
Does meter buzzer activate?
YES
>> Inspection End.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000009759246
1.
CHECK COMBINATION METER INPUT SIGNAL
Select the Data Monitor for the METER/M&A and check the BUZZER monitor value.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-77, "Removal and Installation"
NO
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
(without Intelligent Key).
Monitor Item
Condition
Status
BUZZER
Under the condition of the Buzzer input
ON
Except above
OFF
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