Nissan Frontier D40. Manual — part 1131
WCS-16
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
INFOID:0000000005548401
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES
Check for blown combination meter fuses.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.
POWER SUPPLY CIRCUIT CHECK
1.
Disconnect combination meter connector M24.
2.
Check voltage between combination meter harness connector
M24 terminals 3, 16 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Check harness for open between combination meter and fuse.
3.
GROUND CIRCUIT CHECK
1.
Turn ignition switch OFF.
2.
Check continuity between combination meter harness connector
M24 terminals 13, 23 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Check ground harness.
BCM (BODY CONTROL MODULE)
Unit
Power source
Fuse No.
Combination meter
Battery 19
Ignition switch ON or START
14
Terminals
Ignition switch position
(+)
(–)
OFF
ACC
ON
Connector
Terminal
M24
3
Ground
Battery
voltage
Battery
voltage
Battery
voltage
16
0V
0V
Battery
voltage
WKIA3279E
Terminals
Continuity
(+)
(–)
Connector
Terminal
M24
13
Ground
Yes
23
WKIA3280E
WCS
POWER SUPPLY AND GROUND CIRCUIT
WCS-17
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
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J
K
L
M
B
A
O
P
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000005548402
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.
Turn ignition switch OFF.
2.
Disconnect BCM.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
Terminal No.
Signal name
Fuses and fusible link No.
57
Battery power supply
18 (10A)
70
G (50A)
11
Ignition ACC or ON
4 (10A)
38
Ignition ON or START
1 (10A)
Connector
Terminals
Power
source
Condition
Voltage (V) (Ap-
prox.)
(+)
(-)
M18
11
Ground
ACC
power
supply
Ignition
switch
ACC or
ON
Battery voltage
38
Ground
Ignition
power
supply
Ignition
switch ON
or START
Battery voltage
M20
57
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
70
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
LIIA2415E
BCM
Ground
Continuity
Connector
Terminal
M20
67
Yes
LIIA0915E
WCS-18
< COMPONENT DIAGNOSIS >
METER BUZZER CIRCUIT
METER BUZZER CIRCUIT
Description
INFOID:0000000005274826
• 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:0000000005274827
1.
CHECK OPERATION OF METER BUZZER
1.
Select “BUZZER” of “BCM” on CONSULT-III.
2.
Perform “LIGHT WARN ALM” of “ACTIVE TEST”.
Does meter buzzer activate?
YES
>> Inspection End.
NO
>> Replace combination meter. Refer to
MWI-95, "Removal and Installation"
Diagnosis Procedure
INFOID:0000000005274828
1.
CHECK POWER SUPPLY OF COMBINATION METER
Check power supply of combination meter. Refer to
MWI-29, "COMBINATION METER : Diagnosis Proce-
.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness.
WCS
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
WCS-19
< COMPONENT DIAGNOSIS >
C
D
E
F
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B
A
O
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SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000005274829
Transmits a seat belt buckle switch signal to the combination meter.
Component Function Check
INFOID:0000000005274830
1.
CHECK COMBINATION METER INPUT SIGNAL
Select “DATA MONITOR” for “METER/M&A” and check the “SEAT BELT W/L” monitor value.
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005274831
Regarding Wiring Diagram information, refer to
.
1.
CHECK COMBINATION METER INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between combination meter harness connector
M24 terminal 24 and ground.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
.
NO
>> GO TO 2
2.
CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect combination meter and seat belt buckle switch LH.
3.
Check continuity between combination meter harness connector
M24 terminal 24 and seat belt buckle switch LH harness con-
nector B12 terminal 1.
4.
Check continuity between combination meter harness connector
M24 terminal 24 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
SEAT BELT W/L
When seat belt is fastened
: OFF
When seat belt is unfastened
: ON
24 - Ground
When driver seat belt is fastened
: Approx. 12V
When driver seat belt is unfastened
: Approx. 0V
WKIA3294E
24 - 1
: Continuity should exist.
24 - Ground
: Continuity should not exist.
WKIA3295E
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